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KENWOOD--TM-V708A-service manual

Contents

1. to select Partial VFO Reset PM Reset or Full Reset then press OK A confirmation message appears Press ESC to quit resetting 5 Press OK After switching the power OFF you may press VFO POWER ON for Partial Reset or MR POWER ON for Full Reset This allows you to skip steps 1 to 4 You can also use the RESET button to perform Full Reset Note When in All control Lock or Channel Display mode you cannot perform Partial Reset or Full Reset 1 Press MNU to enter Menu mode 2 Press to select AUX 1 9 then press OK 3 Press to select RESET 1 9 7 then press OK 1 DATA connector 2 PANEL connector 3 MIC connector 4 RESET button Press to perform Full Reset No confirmation message appears Use this switch when the microcomputer and or the memory chip malfunction because of ambient factors 2 Reset TX RX L204 To L207 maximize L209 voltage 1 8V or higher TM V708A 39 ADJUSTMENT S N 42dB or more Distortion rate 4 or less SINAD 12dB or more 2 High level input S N and distortion check 3 Sensitivity check 4 Squelch write 1 Band A FREQ 146 050MHz SSG 501 V 53dBm AF output 2 83V 8 2 Band B FREQ 444 150MHz SSG 501 V 53dBm AF output 2 83V 8 1 Band A FREQ 146 050MHz FREQ 144 050MHz FREQ 147 925MHz SSG 0 25 V 119dBm AF output 0 63V 8 2 Band B FREQ 444 150MHz F
2. 34 Fuse 81 32 37 42 50 78 14 14 G F G Gx2 Gx2 Cx4 Gx2 PANEL UNIT X54 A 3 X54 B 3 X54 C 3 TX RX UNIT X57 38 21 701 702 39 71 5 2 43 49 40 27 13 75 45 73 72 12 18 74 44 46 4 11 10 Bx2 Bx2 B Dx2 3 A A 39 39 G G Ex2 Fx2 700 Chassis EXPLODED VIEW A B 1 2 3 32 TM V708A Parts with the exploded numbers larger than 700 are not supplied 20 Instruction Manual B62 1834 00 55 Packing Fixture H12 3075 03 59 Protection Bag H25 0103 04 80 Microphone T91 0636 05 19 Warranty card B46 0469 20 64 Foot J02 0488 04 69 Bracket J29 0663 13 48 Cushion Bracket G13 1757 04 58 Protection Bag H25 0085 04 57 Protection sheet H21 0766 04 65 Holder J19 1526 04 76 Screw set N99 0382 05 77 Screw set N99 2014 05 66 Bracket Main unit J29 0628 23 56 Carton board H13 1106 24 52 Packing FixtureX2 H12 3074 12 34 Fuse 15A F51 0017 15 36 Fuse 20A F51 0018 05 70 Bracket J29 0664 13 51 Inner Carton Case H02 0614 03 25 Moduler Cable E30 3391 05 23 DC Cord E30 2111 15 62 Protection Bag H25 0720 04 63 Item Carton Case H52 2084 02 PACKING C D 1 2 3 TM V708A 33 ADJUSTMENT VOL control Fully counterclockwise SQL control Fully counterclockwise POWER switch OFF
3. CN5 X54 B 3 X54 C 3 A B C D E F G H I J K L M N O P Q R S 1 3 4 5 6 7 8 9 10 11 12 13 14 2 PANEL UNIT X54 3290 00 Component side view J72 0707 12 53 54 Ref NO Address IC1 5C IC2 5E IC3 8H IC4 6K IC5 5I Q1 7L Q2 4H Q3 4H Q4 4G Q6 5G Q7 5F Q9 5E Q10 5F D1 8G D2 7H D3 5M D4 4E D5 4D D6 4D D7 5M D8 5M D9 8G D10 8I D11 8I D12 8I D13 8I D14 7K D15 7M D16 7M D17 7M D18 7L D19 7M D20 7L D21 8D D22 8D D23 8D D24 6C D25 5C D26 5N D27 6N D28 8J D29 8H D30 8E PANEL UNIT Component side 2SA1162 E C B DTC143EKA IN GND OUT L78LR05B FA 1 2 4 5 3 DA221 1 3 2 50 51 75 76 100 1 25 26 30622M8759GP AT29C020 90TI TC4SB1F 17 16 1 32 2 3 4 5 1 Component side Foil side Layer 1 Layer 2 TM V708A PC BOARD C14 IC4 1 25 75 51 26 50 100 76 L5 C5 C1 IC3 1 2 4 5 3 IC2 1 3 5 4 C3 IC1 1 3 5 4 C2 L3 C4 C7 C8 C6 L1 L2 L4 L6 R5 R6 Q1 R3 D2 L7 C12 C11 R22 R21 R43 C9 C10 R15 R4 R2 R20 R18 R19 R17 D1 IC5 1 16 32 17 C15 C16 CN3 CN1 1 20 PB PB VL VL VDD RES
4. R33 R34 R35 R38 R36 R37 R9 R8 R41 R42 R40 R12 R10 R13 R14 R11 R39 VR1 VR2 CN5 CN4 S10 S9 S8 S7 S6 S12 S11 S4 S3 S5 S2 S1 D24 D25 D26 D27 D28 D29 X54 3290 00 A 3 J72 0707 12 X54 B 3 X54 C 3 D30 S13 A B C D E F G I H J K R S M L 1 2 3 4 5 6 7 N O Q P TM V708A Note The components marked with a dot are parts of layer1 SCHEMATIC DIAGRAM T U V W X Y Z AB AA AC AD AK AL AF AE AG AH AJ AI 1 2 3 4 5 6 7 TM V708A Note The components marked with a dot are parts of layer1 SCHEMATIC DIAGRAM AM AN AO AP AQ AR AS AU AT 1 2 3 4 5 6 7 TM V708A SCHEMATIC DIAGRAM Note The components marked with a dot are parts of layer1 BLOCK DIAGRAM TM V708A TM V708A 68 67 78F4218AGJZXA X57 5860 12 MA4PH633 MA4PH633 69 TM V708A INTERCONNECTION DIAGRAM X57 5860 12 70 TM V708A LEVEL DIAGRAM Transmitter Section 2 5mV 1 6V 0 63V 0 53V 80mV 0dBm 10dBm 19dBm 25dBm MODULE Q6 Q8 Q9 IC2 ANT 1dBm 2dBm 80mV 14dBm 21dBm 26dBm Q309 Q307 Q304 IC302 Q310 MODULE MIC PKD data communications IC801 Q801 Q802 IC804 VHF VCO UHF VCO 1200bps 9600bps Note1 Set the AG so that the microphone socket input is 3kHz deviation a
5. R723 D701 R419 R863 R856 C843 C844 C854 IC806 AO1 DIGND NF1 DOGND BS1 SPOUT ICC AF BS2 POGND NF2 DC AO0 13 1 R119 Q111 D903 R918 C245 R247 Q208 L310 R428 R315 R148 Q110 R707 C709 R708 R843 C141 R139 Q108 R135 C138 R438 Q701 C722 C830 R152 R147 C720 C310 D302 C858 C856 C851 C850 X57 5860 12 J72 0653 11 R919 R920 C420 R417 Q402 R422 C421 R4 R837 R842 C831 C834 R839 C247 L8 Q105 C126 R120 C119 C128 R124 R123 R121 C122 C125 R145 D102 R143 C133 R128 C131 Q107 L311 U V IC4 IN DB FB FB OUT IN DB FB FB OUT IC3 L315 C408 C407 R411 R410 R425 Q405 C933 J700 X400 XF100 XF400 IC703 1 8 16 9 L313 L314 R900 C164 C430 C724 R921 R922 IC900 1 10 20 11 IC901 1 10 20 11 S600 C154 J800 UP E ME NC C8 PTT MIC DWN C932 Q807 R683 R684 R685 R686 R687 R876 R880 R881 R882 R883 R884 R885 C721 C841 L10 L12 L14 L312 L318 L319 L9 Q112 Q406 C147 J602 TXD PB RXD GND R165 C170 C171 C172 C870 Q10 S D G Q11 R169 R550 R64 R65 R926 D702 D703 C737 VR1 VR2
6. R889 C169 C257 C258 C259 C433 C434 C567 C568 C569 C743 C869 C871 D216 D217 IC808 1 4 8 5 1 4 8 5 L16 L223 L531 L532 Q509 Q702 R267 R268 R269 R270 R271 R384 R551 R552 R553 R554 R63 R736 R737 R738 R890 R891 R892 R927 IC807 L317 R385 R386 D16 D316 L214 R250 R364 R366 R51 R53 R54 R55 R659 CH REPTER RDV RAV R675 C174 C436 R67 C570 R740 R741 R742 R743 R744 R745 R746 R747 R748 R749 L213 Q204 Q207 ANT R387 C270 R928 D2 D1 R68 R170 R390 R391 R555 R690 R661 W602 R662 IC804 1 12 24 13 Q404 1 2 3 4 5 Q103 1 2 3 4 5 IC301 1 10 20 11 D303 D4 IC1 1 10 20 11 C428 C427 C807 Q900 E C B C904 C840 R855 C713 R704 R646 C616 IC803 1 7 14 8 C113 C116 C111 C108 C414 C916 C919 C926 IC903 C917 C920 C923 C927 IC904 1 2 3 C826 Q803 C837 C908 C914 SBA C24 C325 C700 C10 C7 C929 OUT GND IN R732 C739 R735 C738 C732 TH1 C70 C68 IC805 1 4 8 5 R860 R862 C842 J802 CN800 SP C863 C921 Q913 D902 C924 C922 R430 CF101 C404 R408 C415 C
7. Receiver section Adjustment Specifications Remarks Test Unit Terminal equipment Unit Parts Method TM V708A 42 ADJUSTMENT Item Condition Measurement Receiver section Adjustment Specifications Remarks Test Unit Terminal equipment Unit Parts Method 6 S meter write 4 FREQ 146 350MHz SSG MOD 60 1kHz 1S1 SSG 0 28 V 118dBm 2S7 SSG 39 8 V 75dBm 5 FREQ 127 100MHz SSG MOD 60 1kHz 1S1 SSG 0 28 V 118dBm 2S7 SSG 39 8 V 75dBm 6 FREQ 223 100MHz SSG MOD 60 1kHz 1S1 SSG 0 707 V 110dBm 2S7 SSG 39 8 V 75dBm Band A Sub band 7 FREQ 444 350MHz SSG DEV 3kHz MOD 1kHz 1S1 SSG 0 28 V 118dBm 2S7 SSG 3 54 V 96dBm 8 FREQ 390 100MHz SSG DEV 3kHz MOD 1kHz 1S1 SSG 0 707 V 110dBm 2S7 SSG 7 94 V 89dBm 9 FREQ 444 350MHz SSG MOD 60 1kHz 1S1 SSG 0 28 V 118dBm 2S7 SSG 39 8 V 75dBm 10 FREQ 390 100MHz SSG MOD 60 1kHz 1S1 SSG 1 30 V 105dBm 2S7 SSG 39 8 V 75dBm SSG Rear ANT panel One Segment in S meter lights All segments in S meter light One Segment in S meter lights All segments in S meter light One Segment in S meter lights All segments in S meter light One Segment in S meter lights All segments in S meter light One Segment in S meter lights All segments in S meter light One Segment in S meter lights All segments in S meter light One Segment in S meter lig
8. 4 8 5 C719 C702 J801 R138 C135 CF401 R726 C728 R836 R154 C145 R720 C733 R731 C730 C727 C726 C725 C307 C308 C309 C311 Q914 IC302 IC2 R418 C857 C829 C832 R841 C833 IC802 1 3 5 4 C244 L11 C62 C55 C57 C61 C54 R158 C129 R125 C123 R122 R149 C142 R141 R137 C140 C139 C134 R134 Q106 C137 R129 C124 R146 R150 C144 C366 L316 C330 C425 R409 R427 C422 IC101 1 4 8 5 C321 C8 C6 C28 C23 R433 R426 C424 R434 L400 C406 R155 R106 R156 C132 D800 C806 R730 R722 R727 R721 R725 R719 R724 D304 R329 Q303 D5 Q4 R24 R910 Q911 E C B Q910 R853 R8 R314 R852 R903 R916 R7 R313 R902 R917 R911 R854 R703 R909 R906 R905 Q104 R58 R904 R310 R5 C902 Q912 E B C CN900 R851 R858 R857 R712 R715 R718 C717 R717 C423 R429 R153 C146 R810 R803 C828 R834 R706 R645 R846 C852 R850 C836 R849 C835 R140 R142 R151 R118 C410 R414 C416 Q801 R835 Q802 R840 D700 Q700 R311 R859 R312 R3 R132 R130 R133 R136 R126 C9 D3 R6 C734 C736 R734 R733 C729 R729 R9 R728 R723 D701 R419
9. DET IF 1 IF 2 1 2 2 3 Crystal 12 8MHz 12 8MHz Crystal 12 8MHz Crystal 45 505MHz 2nd IF 455kHz 2nd IF 450kHz 1st IF 45 05MHz 1st IF 38 85MHz AF AF A B F C I E D G J L H K 38 4MHz ANT UHF TX UHF RX UHF RX MAIN MAIN SUB SUB VHF RX VHF RX VHF TX Fig 1 Frequency configuration A 438 000 449 995MHz D 144 000 147 995MHz G 392 950 404 945MHz J 182 850 186 845MHz B 438 000 439 995MHz E 144 000 145 995MHz H 378 100 382 090MHz K 195 575 200 5725MHz C 144 000 147 995MHz F 438 000 449 995MHz I 189 050 193 045MHz L 399 150 411 145MHz TM V708A 4 CIRCUIT DESCRIPTION Fig 2 Main VHF Receiver circuit Fig 3 Main UHF Receiver circuit 2 Receiver system 2 1 Main VHF Receiver The incoming signal from the antenna passes through a filter circuit and goes to the RF amplifier Q205 The amplified signal enters the helical resonator L209 L207 L204 The helical resonator is tuned to the desired frequency according to the BPF voltage output from the CPU with the varicap D206 D205 D202 After the signal passes through a filter it is amplified by another RF amplifier Q202 and goes to the single balanced mixer Q200 Q201 The frequency of the signal is converted by the first local oscillator Upper heterodyne to generate a 38 85MHz first IF signal The signal passes through the MCF XF100 is amplified by t
10. IC806 2N IC807 M3 IC808 M3 IC900 H4 IC901 J3 IC903 L2 IC904 K3 Q1 H10 Q2 H10 Q3 H11 Q4 H10 Q6 I11 Q7 I12 Q8 I11 Q9 I10 Q10 K10 Q11 K9 Q102 I6 Q103 J5 Q104 H5 Q105 I6 Q106 I6 Q107 I6 Q108 I5 Q110 I5 Q111 H6 Q112 J6 Q113 K11 Q200 K9 Q201 K10 Q202 K11 TX RX UNIT Component side Foil side 52 51 TX RX UNIT X57 5860 12 Component side Foil side view J72 0653 11 Connect 1 and 4 D13 I10 D14 N10 D15 N10 D16 M11 D17 M11 D18 N11 D19 N12 D102 I6 D208 L11 D209 L11 D210 M10 D211 M10 D213 L11 D214 L11 D216 K11 D217 L11 D300 H6 D301 H6 D302 H8 D303 H9 D304 H8 D305 I9 D306 I9 D307 I9 D3 H10 D4 H11 D5 H11 D6 J10 D7 K10 D9 I12 D11 I11 D12 I11 D200 K10 D201 K10 D202 K11 D203 L10 D204 K11 D205 K11 D206 L11 D207 L11 Ref NO Address Ref NO Address Ref NO Address Ref NO Address Ref NO Address Ref NO Address Ref NO Address D309 J8 D310 J8 D312 J9 D313 M8 D314 N9 D315 M9 D316 N9 D317 O8 D318 O8 D500 L7 D502 K8 D503 K8 D505 M9 D507 L9 D509 M8 D510 L8 Ref NO Address Ref NO Address D602 E11 D605 I4 D700 E7 D701 E7 D702 E9 D703 E9 D800 E10 D801 F10 D803 O3 D900 L4 D902 I3 D9
11. Q803 F11 Q807 E5 Q900 O7 Q910 I3 Q911 I3 Q912 L3 Q913 I3 Q914 L3 D3 H10 D4 H11 D5 H11 D102 I6 D302 H8 D303 H9 D304 H8 D700 E7 D701 E7 D702 E9 D703 E9 D800 E10 D902 I3 D903 I3 TX RX UNIT Component side DTA114EE DTC114EE DA221 2SJ484 BU4066BCFV LA4446 TA7808S M57788MR 24 E C B 1 3 2 G D S 1 7 8 14 1 3 2 1 2 3 4 5 6 NJM2904V M62364FP TA75S01F BU2099FV TC74HC4050AFT 2SB1386 M67746 8 1 5 4 12 1 24 13 1 3 4 5 2 1 10 11 20 8 1 9 16 B C E 5 4 1 1 13 TM V708A PC BOARD IC804 1 12 24 13 Q404 1 2 3 4 5 Q103 1 2 3 4 5 IC301 1 10 20 11 D303 D4 IC1 1 10 20 11 C428 C427 C807 Q900 E C B C904 C840 R855 C713 R704 R646 C616 IC803 1 7 14 8 C113 C116 C111 C108 C414 C916 C919 C926 IC903 C917 C920 C923 C927 IC904 1 2 3 C826 Q803 C837 C908 C914 SBA C24 C325 C700 C10 C7 C929 OUT GND IN R732 C739 R735 C738 C732 TH1 C70 C68 IC805 1 4 8 5 R860 R862 C842 J802 CN800 SP C863 C921 Q913 D902 C924 C922 R430 CF101 C404 R408 C415 C413 C800 IC701 1
12. C204 R204 C202 R203 C201 C200 C153 C203 C51 C74 C66 C72 C80 C60 C59 D18 C76 C82 D19 C65 C67 C52 C43 D12 C44 C45 C46 C50 C49 Q6 R40 C38 D17 C36 R46 C86 C79 Q7 C48 C58 C37 R205 C207 D205 D206 D202 C218 R207 C209 C41 C118 C235 C236 R242 C239 C241 D211 C542 C544 C548 C531 C523 C364 Q506 C537 C534 C529 C536 C543 C514 C515 L525 C550 L514 C379 C377 D317 C369 D318 D313 C361 C355 Q310 E C B C358 C354 C359 C357 C365 D315 C362 C367 C372 C352 R356 C353 C508 C510 RM22 RM14 RS43 RM30 RM43 RAU SQU SMU R8V R509 C511 R510 C344 IC303 1 4 8 5 C349 Q308 C347 Q307 1 2 4 3 C348 C346 C335 R337 C333 C331 Q304 C332 L302 R332 C328 Q302 C324 R512 C533 R528 R532 C557 C559 C555 C552 R533 C553 R538 C403 R8U SBA C411 C551 R539 C558 R239 R202 C40 L502 C512 R511 C513 L504 C521 C230 C223 C217 R220 C313 C314 C312 C317 R318 Q301 C315 C316 C318 R388 TC1 C5 C4 Q2 C11 C13 C14 R12 R2 C2 C21 R676 C628 Q905 R504 R502 L512 L511 L509 C526 C525
13. C550 L514 C379 C377 D317 C369 D318 D313 C361 C355 Q310 E C B C358 C354 C359 C357 C365 D315 C362 C367 C372 C352 R356 C353 C508 C510 RM22 RM14 RS43 RM30 RM43 RAU SQU SMU R8V R509 C511 R510 C344 IC303 1 4 8 5 C349 Q308 C347 Q307 1 2 4 3 C348 C346 C335 R337 C333 C331 Q304 C332 L302 R332 C328 Q302 C324 R512 C533 R528 R532 C557 C559 C555 C552 R533 C553 R538 C403 R8U SBA C411 C551 R539 C558 R239 R202 C40 L502 C512 R511 C513 L504 C521 C230 C223 C217 R220 C313 C314 C312 C317 R318 Q301 C315 C316 C318 R388 TC1 C5 C4 Q2 C11 C13 C14 R12 R2 C2 C21 R676 R690 C628 Q905 R504 R502 L512 L511 L509 C526 C525 C383 R517 C519 R514 1 2 4 3 L505 C336 R338 C518 L304 R335 D305 D306 C334 R339 Q906 R500 R336 R506 R343 C338 R340 R342 D309 Q907 1 2 3 5 4 1 2 3 5 4 1 2 3 5 4 1 2 3 5 4 1 2 3 5 4 R518 R521 R529 R516 R531 R519 R341 R344 C343 R524 R526 R347 R349 RS14 R345 R543 R359 R352 L305 R348 L524 R236 L520 L522 C554 L516 R525 C539 Q5
14. C92 0606 05 CHIP TAN 4 7UF 10WV C321 CK73GB1H103K CHIP C 0 010UF K C322 CK73GB1H471K CHIP C 470PF K C323 CC73GCH1H100D CHIP C 10PF D C324 CK73GB1H471K CHIP C 470PF K C325 CK73GB1H103K CHIP C 0 010UF K C326 C92 0593 05 CHIP ELE 33UF 10WV C327 CC73GCH1H040C CHIP C 4 0PF C C328 CK73GB1H471K CHIP C 470PF K C329 CC73GCH1H040C CHIP C 4 0PF C C330 CK73GB1H471K CHIP C 470PF K C331 CK73GB1H102K CHIP C 1000PF K C332 CC73GCH1H470J CHIP C 47PF J C333 CC73GCH1H101J CHIP C 100PF J C334 CC73GCH1H080D CHIP C 8 0PF D C335 CC73GCH1H010B CHIP C 1 0PF B C336 338 CK73GB1H471K CHIP C 470PF K C339 CK73GB1H102K CHIP C 1000PF K C340 CC73GCH1H030B CHIP C 3 0PF B C341 CK73GB1H471K CHIP C 470PF K C342 CC73GCH1H010B CHIP C 1 0PF B C343 CK73GB1H471K CHIP C 470PF K C344 CK73GB1H102K CHIP C 1000PF K C345 CC73GCH1H050C CHIP C 5 0PF C C346 CK73GB1H471K CHIP C 470PF K C347 CK73GB1H102K CHIP C 1000PF K C348 349 CK73GB1H471K CHIP C 470PF K C350 CC73GCH1H050C CHIP C 5 0PF C C351 CC73GCH1H120J CHIP C 12PF J C352 354 CK73GB1H471K CHIP C 470PF K C355 CK73GB1C104K CHIP C 0 10UF K C356 CC73GCH1H080D CHIP C 8 0PF D C357 359 CK73GB1H471K CHIP C 470PF K C360 CC73GCH1H080D CHIP C 8 0PF D C361 362 CK73GB1H102K CHIP C 1000PF K C364 CK73GB1H103K CHIP C 0 010UF K C365 CC73GCH1H040C CHIP C 4 0PF C C366 CK73GB1H102K CHIP C 1000PF
15. CHIP R 0 OHM R9 10 RK73FB2A560J CHIP R 56 J 1 10W R11 12 RK73FB2A181J CHIP R 180 J 1 10W R13 14 RK73FB2A271J CHIP R 270 J 1 10W R15 R92 1252 05 CHIP R 0 OHM J 1 16W R17 22 RK73GB1J102J CHIP R 1 0K J 1 16W R25 RK73GB1J103J CHIP R 10K J 1 16W 1 1B A01 2122 23 METALLIC CABINET UPPER 2 3B A01 2172 13 METALLIC CABINET LOWER 3 3A A62 0775 03 PANEL DISPLAY 4 2A A62 1122 03 PANEL MAIN UNIT 5 3B A82 0040 01 REAR PANEL DISPLAY 10 2A B03 3605 14 DRESSING PLATE 11 2A B03 3606 04 DRESSING PLATE 12 3A B10 2631 02 FRONT GLASS 13 3A B38 0829 05 LCD ASSY 14 1B B42 2455 04 STICKER 4x8 MAX 18 3A B43 1222 04 BADGE 19 1C B46 0469 20 WARRANTY CARD 20 1C B62 1834 00 INSTRUCTION MANUAL 21 3B B72 2293 04 MODEL NAME PLATE 22 1B E04 0167 05 RF COAXIAL PECEPTACLE M 23 2C E30 2111 15 DC CORD ACCESSORY 24 1B E30 2137 15 DC CORD 25 2C E30 3391 05 MODULAR CABLE 3m ACCESSORY 26 1B E31 3197 15 LEAD WIRE WITH CONNECTOR SP 27 3A E37 0835 05 FLAT CABLE DISPLAY 30 1B F07 1429 03 COVER FAN 31 2B F10 2233 04 SHIELDING COVER VCO 32 2B F10 2332 12 SHIELDING COVER POWER MODULE 33 2B F12 0460 14 CONDUCTIVE SHEET 34 1B F51 0017 15 FUSE 6 30 15A ACCESSORY 36 2C F51 0018 05 FUSE 6 30 20A 37 1B G02 0803 03 FLAT SPRING AF AMP AVR 38 2B G02 0809 04 FLAT SPRING TX RX PCB 39 2B G10 0792 14 FIBROUS SHEET FR
16. CS1 CS2 GND AO WR RD D0 D1 D2 D3 D4 D5 D6 D7 CN2 CP1 CP10 CP11 CP12 CP13 CP14 CP15 CP2 CP3 CP4 CP5 CP6 CP7 CP8 CP9 C13 C23 C24 L9 Q2 Q3 Q4 Q6 Q7 Q9 X1 Q10 R27 R28 R29 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 D21 D22 D23 D3 C25 D4 D5 D6 D7 D8 D9 C17 C18 C19 C20 C21 C22 J1 TXD RXD GND PB R25 R30 R31 R32 R33 R34 R35 R38 R36 R37 R9 R8 R41 R42 R40 R12 R10 R13 R14 R11 R39 VR1 VR2 CN5 CN4 S10 S9 S8 S7 S6 S12 S11 S4 S3 S5 S2 S1 D24 D25 D26 D27 D28 D29 X54 3290 00 A 3 J72 0707 12 X54 B 3 X54 C 3 D30 S13 VR1 VR2 CN5 CN4 S10 S9 S8 S7 S6 S12 S11 S4 S3 S5 S2 S1 D24 D25 D26 D27 D28 D29 X54 3290 00 A 3 J72 0707 12 X54 B 3 X54 C 3 D30 S13 A B C D E F G H I J K L M N O P Q R S 1 3 4 5 6 7 8 9 10 11 12 13 14 2 PANEL UNIT X54 3290 00 Foil side view J72 0707 12 56 55 Ref NO Address IC1 5Q IC2 5O IC3 8L IC4 6I IC5 6K Q1 7H Q2 4L Q3 4L Q4 4M Q6 5M Q7 5N Q9 5O Q10 5N D1 8M D2 7L D3 5G D4 4O D5 4P D6 4P D7 5G D8 5G D9 8M D10 8K
17. D9 DAN235E DIODE D11 HSC277 DIODE D12 1SS355 DIODE D13 DA221 DIODE D14 15 MA4PH633 DIODE D16 XB15A709 DIODE D17 HVU131 DIODE D18 19 MA742 DIODE D102 RB706F 40 DIODE D200 201 HSC277 DIODE D202 HVC350B VARIABLE CAPACITANCE DIODE D203 204 HSC277 DIODE D205 206 HVC350B VARIABLE CAPACITANCE DIODE D207 209 HSC277 DIODE D210 211 MA742 DIODE D213 214 MA2S111 DIODE D216 HVC350B VARIABLE CAPACITANCE DIODE D217 MA2S111 DIODE D300 301 HVC350B VARIABLE CAPACITANCE DIODE D302 MA2S111 DIODE D303 DA221 DIODE D304 MA2S111 DIODE D305 306 HSC277 DIODE D307 DAN235E DIODE D309 DAN222 DIODE D310 DAN235E DIODE D312 DA221 DIODE D313 HVU131 DIODE D314 MA4PH633 DIODE D315 HVU131 DIODE D316 XB15A709 DIODE D317 318 MA742 DIODE D500 DAN235E DIODE D502 HSC277 DIODE D503 DAN235E DIODE D505 DAN235E DIODE D507 HSC277 DIODE D509 510 HVC131 DIODE D602 MA2S111 DIODE D605 MA2S111 DIODE D700 MA2S111 DIODE D701 1SS355 DIODE D702 703 DA221 DIODE D800 1SS355 DIODE D801 DAN222 DIODE D803 DA221 DIODE D900 DAN222 DIODE D902 UDZS10B ZENER DIODE D903 UDZS18B ZENER DIODE D904 905 DSM3MA1 DIODE IC1 MB1511PFV GBND MOS IC IC2 KCH38 HYBRID IC IC3 M67746 HYBRID IC IC4 M57788MR 24 HYBRID IC IC100 TA31136FN MOS IC IC101 TC4W53FU MOS IC IC200 TA75S01F MOS IC IC300 NJM2904V MOS IC IC301 MB1511PFV GBND MOS IC IC302 KCH28 HY
18. J 1 16W R200 RK73GB1J101J CHIP R 100 J 1 16W R201 RK73GB1J472J CHIP R 4 7K J 1 16W R202 RK73GB1J222J CHIP R 2 2K J 1 16W R203 204 RK73GB1J221J CHIP R 220 J 1 16W R205 RK73GB1J101J CHIP R 100 J 1 16W R206 RK73GB1J222J CHIP R 2 2K J 1 16W R207 RK73GB1J104J CHIP R 100K J 1 16W R208 209 RK73GB1J222J CHIP R 2 2K J 1 16W R212 R92 1252 05 CHIP R 0 OHM J 1 16W R215 RK73GB1J184J CHIP R 180K J 1 16W R216 RK73GB1J471J CHIP R 470 J 1 16W R217 RK73GB1J101J CHIP R 100 J 1 16W R220 RK73GB1J683J CHIP R 68K J 1 16W R221 RK73GB1J104J CHIP R 100K J 1 16W R226 RK73GB1J222J CHIP R 2 2K J 1 16W R227 RK73GB1J104J CHIP R 100K J 1 16W R228 RK73GB1J221J CHIP R 220 J 1 16W R229 RK73GB1J473J CHIP R 47K J 1 16W R230 RK73GB1J102J CHIP R 1 0K J 1 16W R231 RK73GB1J104J CHIP R 100K J 1 16W R232 RK73GB1J472J CHIP R 4 7K J 1 16W R233 RK73GB1J471J CHIP R 470 J 1 16W R234 235 RK73GB1J222J CHIP R 2 2K J 1 16W R236 RK73GB1J221J CHIP R 220 J 1 16W R237 RK73GB1J103J CHIP R 10K J 1 16W R238 RK73GB1J221J CHIP R 220 J 1 16W R239 RK73GB1J101J CHIP R 100 J 1 16W R240 R92 1252 05 CHIP R 0 OHM J 1 16W R242 RK73GB1J683J CHIP R 68K J 1 16W R244 R92 1252 05 CHIP R 0 OHM J 1 16W R247 RK73GB1J222J CHIP R 2 2K J 1 16W R249 R92 1213 05 CHIP R 100 J 1 2W R250 RK73FB2A220J CHIP R 22 J 1 10W R251 RK73GB1J103J CHIP R 10K J 1 16W R252 RK73GB1J102J C
19. L34 4506 15 COIL L210 L40 4775 92 SMALL FIXED INDUCTOR 47NH L211 L40 2785 92 SMALL FIXED INDUCTOR 270NH L213 L40 1585 92 SMALL FIXED INDUCTOR 150NH L214 L40 1085 54 SMALL FIXED INDUCTOR 100NH L215 L40 8271 34 SMALL FIXED INDUCTOR 82NH L216 217 L40 1095 34 SMALL FIXED INDUCTOR 1UH L219 220 L40 4775 92 SMALL FIXED INDUCTOR 47NH L221 L40 6875 92 SMALL FIXED INDUCTOR 68NH L222 L40 1575 92 SMALL FIXED INDUCTOR 15NH L223 L40 5675 54 SMALL FIXED INDUCTOR 56NH L300 L40 2275 92 SMALL FIXED INDUCTOR 22NH L301 L40 3975 92 SMALL FIXED INDUCTOR 39NH L302 L40 6865 92 SMALL FIXED INDUCTOR 6 8NH L303 L40 2275 92 SMALL FIXED INDUCTOR 22NH L304 L40 6865 92 SMALL FIXED INDUCTOR 6 8NH L305 L40 2275 92 SMALL FIXED INDUCTOR 22NH L306 L40 1085 92 SMALL FIXED INDUCTOR 100NH L307 L40 1275 92 SMALL FIXED INDUCTOR 12NH L308 L40 1575 92 SMALL FIXED INDUCTOR 15NH L309 L40 1575 34 SMALL FIXED INDUCTOR 15NH L310 L34 0742 05 AIR CORE COIL L311 L34 1239 05 AIR CORE COIL L312 L34 4617 15 AIR CORE COIL L313 314 L34 1039 05 AIR CORE COIL L315 L34 1228 05 AIR CORE COIL L316 L34 1052 05 AIR CORE COIL L317 L40 1875 54 SMALL FIXED INDUCTOR 18NH L318 319 L34 4617 15 AIR CORE COIL L400 L40 1095 34 SMALL FIXED INDUCTOR 1UH L401 L34 4459 05 COIL L500 L34 4596 05 COIL L501 L40 1091 86 SMALL FIXED INDUCTOR 1 0U L502 L40 6865 92 SMALL FIXED INDUCTOR 6 8NH L503 L39 1421 05 TOROIDAL
20. M N O P Q R S 1 3 4 5 6 7 8 9 10 11 12 13 14 2 Ref NO Address IC100 K6 IC200 E7 IC300 M9 IC303 K8 IC304 L8 IC400 I6 IC501 G8 IC601 M5 IC602 M5 IC603 K4 IC604 N5 IC700 O7 IC702 N8 IC800 O9 IC801 N11 IC807 G3 IC808 G3 Q1 L10 Q2 L10 Q3 L11 Q6 K11 Q7 K12 Q8 K11 Q9 K10 Q102 K6 Q113 I11 Q200 I9 Q201 I10 Q202 I11 Q203 I10 Q204 G10 Q205 G11 Q207 G11 Q209 E7 Q210 H11 Q300 L8 Q301 L8 Q302 L8 Q304 L9 Q305 H7 Q306 K8 Q307 K9 Q308 K8 Q309 J9 Q310 J9 Q500 H7 Q501 J7 Q502 I7 Q503 G7 Q505 H8 Q506 H8 Q507 I8 Q508 G9 Q509 F8 Q601 O11 Q603 M5 Q604 K4 Q702 O7 Q800 N10 Q804 G3 Q805 F4 TX RX UNIT Foil side Ref NO Address Q903 I4 Q904 H4 Q905 I4 Q906 J4 Q907 J4 Q908 I4 Q909 J4 D1 L9 D2 L9 D6 J10 D7 I10 D9 K12 D11 K11 D12 K11 D13 K10 D14 F10 D15 F10 D16 F11 D17 G11 D18 F11 D19 F12 D200 I11 D201 I11 D202 I11 D203 H10 D204 I11 D205 I11 D206 H11 D207 H11 D208 H11 D209 H11 D210 G10 D211 G10 D213 G11 D214 G11 D216 I11 D217 G11 D300 L6 D301 L6 D305 K9 D306 K9 D307 K9 D309 J8 D310 J8 D312 J9 D313 G8 D314 F9 D315 G9
21. No Level TM V708A 15 SEMICONDUCTOR DATA 78F4218AGJZXA TX RX UNIT CPU IC604 Pin No Port Name I O Function Active Level 1 UPLLEN O U PLL Enable output MB1511PFV 2 VPLLEN O V PLL Enable output MB1511PFV 3 PSW1 O Transceiver main power switch SBSW H ON 4 PSW2 O Transceiver main power switch CPU L ON 5 MIC MUTE1 O MIC MUTE 1 MIC input H Mute H 6 MIC MUTE2 O MIC MUTE 2 SPF out H Mute H 7 RST SW I Hard reset switch Normal L 8 SHIFT O Clock shift Normal L 9 VDD Positive power supply 10 X2 O System clock 11 0592MHz 11 X1 I System clock 12 VSS GND 13 XT2 OPEN 14 XT1 Connect to VSS 15 RESET I System reset H Reset H 16 BACKUP I Power voltage fall detection interrupt H Back up mode H 17 NOT USED I Not used 18 NC O Not used 19 NOT USED I Not used 20 SIS I UART control signal input from STN panel H 21 MUTE5 O DTMF 1750Hz mute output H Mute 22 MIC PWR I Remote control keys DOWN MR PF power switch L 23 AVDD Connect to VDD 24 AVREF Connect to VDD 25 THP I Temperature protection 26 SQ14 I Noise level A D input VHF IF 27 SW14 I S meter level A D input VHF IF 28 SQ43 I Noise level A D input UHF IF 29 SM43 I S meter level A D input UHF IF 30 P_DWAN I Remote control k
22. R128 RK73GB1J474J CHIP R 470K J 1 16W R129 RK73GB1J224J CHIP R 220K J 1 16W R130 RK73GB1J222J CHIP R 2 2K J 1 16W R131 R92 1252 05 CHIP R 0 OHM J 1 16W R132 RK73GB1J564J CHIP R 560K J 1 16W R133 RK73GB1J152J CHIP R 1 5K J 1 16W R134 RK73GB1J102J CHIP R 1 0K J 1 16W R135 RK73GB1J182J CHIP R 1 8K J 1 16W R136 RK73GB1J473J CHIP R 47K J 1 16W R137 RK73GB1J103J CHIP R 10K J 1 16W R138 RK73GB1J102J CHIP R 1 0K J 1 16W R139 RK73GB1J474J CHIP R 470K J 1 16W R140 RK73GB1J471J CHIP R 470 J 1 16W R141 RK73GB1J104J CHIP R 100K J 1 16W R142 RK73GB1J392J CHIP R 3 9K J 1 16W R143 RK73GB1J102J CHIP R 1 0K J 1 16W R145 RK73GB1J104J CHIP R 100K J 1 16W R146 RK73GB1J224J CHIP R 220K J 1 16W R147 RK73GB1J103J CHIP R 10K J 1 16W R148 RK73GB1J274J CHIP R 270K J 1 16W R149 RK73GB1J332J CHIP R 3 3K J 1 16W R150 RK73GB1J392J CHIP R 3 9K J 1 16W R151 RK73GB1J333J CHIP R 33K J 1 16W R152 RK73GB1J472J CHIP R 4 7K J 1 16W R153 154 RK73GB1J473J CHIP R 47K J 1 16W R155 RK73GB1J101J CHIP R 100 J 1 16W R156 RK73GB1J152J CHIP R 1 5K J 1 16W R158 RK73GB1J471J CHIP R 470 J 1 16W R163 RK73GB1J180J CHIP R 18 J 1 16W R165 RK73GB1J563J CHIP R 56K J 1 16W R166 RK73GB1J223J CHIP R 22K J 1 16W R167 RK73GB1J473J CHIP R 47K J 1 16W R168 RK73GB1J151J CHIP R 150 J 1 16W R169 RK73GB1J332J CHIP R 3 3K J 1 16W R170 RK73GB1J274J CHIP R 270K
23. R371 CN601 1 8 VO C5 E NAR RST VCS VDT VCK C100 C107 C703 C704 C705 C706 C707 C708 C715 C716 R249 C629 R647 R648 C711 R680 R681 R874 R875 IC602 1 4 8 5 IC702 1 12 24 13 RM80 C252 C253 C254 C255 C322 C393 C394 C395 C397 C562 1 2 4 3 C563 C564 C565 C864 C865 D213 D214 D509 D510 IC501 L219 L220 L526 L527 L528 L529 L530 R260 R261 R262 R264 R379 R380 R381 R546 R547 R548 R549 R62 R688 R877 R878 R887 L517 L602 L603 Q205 1 2 4 3 Q305 Q507 C225 C226 C227 C92 D204 Q210 R226 R228 R230 R265 R266 L205 L206 L221 L222 C399 Q113 R166 R167 R168 IC304 1 3 5 4 R382 R383 CN602 1 10 STS M5C VPP RESET SCK SI2 SO2 GND L15 L210 C256 R263 R889 C169 C257 C258 C259 C433 C434 C567 C568 C569 C743 C869 C871 D216 D217 IC808 1 4 8 5 1 4 8 5 L16 L223 L531 L532 Q509 Q702 R267 R268 R269 R270 R271 R384 R551 R552 R553 R554 R63 R736 R737 R738 R890 R891 R892 R927 IC807 L317 R385 R386 D16 D316 L214 R250 R364 R366 R51 R54 R55 R659 CH REPTER RDV RAV R675 C174 C436
24. R67 C570 R740 R741 R742 R743 R744 R745 R746 R747 R748 R749 L213 Q204 Q207 ANT R387 C270 R928 D2 D1 R68 R170 R390 R391 R555 R661 W602 R662 X57 5860 12 J72 0653 11 A B C D E F G H I J K L M N O P Q R S 1 3 4 5 6 7 8 9 10 11 12 13 14 2 Ref NO Address Q203 K10 Q204 M10 Q205 M11 Q207 M11 Q208 O6 Q209 O7 Q210 L11 Q300 H8 Q301 H8 Q302 H8 Q303 H8 Q304 H9 Q305 L7 Q306 I8 Q307 I9 Q308 I8 Q309 J9 Q310 J9 Q402 K6 Q404 L5 Q405 K7 Q406 L6 Q500 L7 Q501 J7 Q502 K7 Q503 M7 Q505 L8 Q506 L8 Q507 K8 Q508 M9 Q509 N8 Q601 E11 Q603 G5 Q604 I4 Q700 E7 Q701 E8 Q702 E7 Q800 E10 Q801 F11 Q802 F11 Q803 F11 Q804 M3 Q805 N4 Q807 E5 Q900 O7 Q903 K4 Q904 L4 Q905 K4 Q906 J4 Q907 J4 Q908 K4 Q909 J4 Q910 I3 Q911 I3 Q912 L3 Q913 I3 Q914 L3 D1 H9 D2 H9 Ref NO Address IC1 H11 IC2 H11 IC3 L11 IC4 L8 IC100 I6 IC101 I6 IC200 O7 IC300 G9 IC301 H8 IC302 H9 IC303 I8 IC304 H8 IC400 K6 IC501 M8 IC601 G5 IC602 G5 IC603 I4 IC604 F5 IC700 E7 IC701 E7 IC702 F8 IC703 F5 IC800 E9 IC801 F11 IC802 F10 IC803 F10 IC804 F9 IC805 H6
25. R863 R856 C843 C844 C854 IC806 AO1 DIGND NF1 DOGND BS1 SPOUT ICC AF BS2 POGND NF2 DC AO0 13 1 R119 Q111 D903 R918 C245 R247 Q208 L310 R428 R315 R148 Q110 R707 C709 R708 R843 C141 R139 Q108 R135 C138 R438 Q701 C722 C830 R152 R147 C720 C310 D302 C858 C856 C851 C850 X57 5860 12 J72 0653 11 R919 R920 C420 R417 Q402 R422 C421 R4 R837 R842 C831 C834 R839 C247 L8 Q105 C126 R120 C119 C128 R124 R123 R121 C122 C125 R145 D102 R143 C133 R128 C131 Q107 L311 U V IC4 IN DB FB FB OUT IN DB FB FB OUT IC3 L315 C408 C407 R411 R410 R425 Q405 C933 J700 X400 XF100 XF400 IC703 1 8 16 9 L313 L314 R900 C164 C430 C724 R921 R922 IC900 1 10 20 11 IC901 1 10 20 11 S600 C154 J800 UP E ME NC C8 PTT MIC DWN C932 Q807 R683 R684 R685 R686 R687 R876 R880 R881 R882 R883 R884 R885 C721 C841 L10 L12 L14 L312 L318 L319 L9 Q112 Q406 C147 J602 TXD PB RXD GND R165 C170 C171 C172 C870 Q10 S D G Q11 R169 R550 R64 R65 R926 D702 D703 C737 A B C D E F G H I J K L
26. 000MHz FREQ 438 000MHz FREQ 449 975MHz Transmission f counter Rear ANT Power meter panel Power Rear ANT meter panel Ammeter Power Rear ANT meter panel Ammeter TX RX TC1 146 000 MHz TC300 444 000 MHz Display Encoder Write FREQ2 key Check Display Encoder FREQ2 key Write Check Display Encoder Write FREQ2 key Check Display Encoder Write FREQ2 key Item Condition Measurement Transmission section Adjustment Specifications Remarks Test Unit Terminal equipment Unit Parts Method TM V708A 45 ADJUSTMENT 5 FREQ 438 000MHz FREQ 449 975MHz POWER HI Transmission 6 POWER MID Transmission 7 POWER LOW Transmission For 1 and 3 switch to adjustment mode and carry out the operations for Item D 1 Band A FREQ 146 000MHz AG 1kHz 50mV Transmission 2 Down AG output from the above state by 20dB 1kHz 5 0mV Transmission 3 Band B FREQ 444 000MHz AG 1kHz 50mV Transmission 4 Down AG output from the above state by 20dB 1kHz 5 0mV Transmission Switch to adjustment mode and carry out the operations for Item E 1 Band A FREQ 146 000MHz Transmission 2 Band B FREQ 444 000MHz Transmission For 1 and 3 Switch to adjustment mode and carry out the operations for Item F 1 FREQ 146 100MHz TONE 88 5Hz Transmission 2 FREQ 146 100MHz TONE 88 5Hz Transmission 3 FREQ 445 100MHz TONE 88 5Hz Transmission 2 2 POWER
27. 0978 04 1 CUSHION 8 J19 1433 05 2 HOLDER 9 L79 1417 05 2 LINE FILTER 10 N99 2016 05 1 SCREW SET PG 4X MAIN PARTS LIST OPTION PG 4X Extension cable kit 1 3 2 5 6 4 9 8 7 0 TM V708A General VHF Band UHF Band Frequency range 144 148MHz 438 450MHz Mode F3E FM Antenna impedance 50 Usable temperature range 20 C 60 C 4 F 140 F Power supply 13 8V DC 15 11 7 15 8V Grounding method Negative ground Current Transmit max 11 5A or less 10 0A or less Receive at 2W output 1 0A or less Frequency stability 10 C 50 C Within 3ppm Dimensions Main Body 140 x 40 x 195mm 5 51 x 1 58 x 7 68 W x H x D projections not included Panel 140 x 60 x 33 3mm 5 51 x 2 36 x 1 31 Weight Main Body Approx 1 2kg 2 6lb Panel Approx 180g 6 3oz Transmitter Power output High 50W 35W Mid Approx 10W Low Approx 5W Modulation Reactance Spurious emissions 60dB or less Maximum frequency deviation 5kHz Audio distortion at 60 modulation 3 or less Microphone impedance 600 Receiver Circuitry Double conversion superheterodyne Intermediate frequency 1st 2nd 38 85MHz 450kHz 45 05MHz 455kHz Sensitivity VHF or UHF band 0 16 V or less 12dB SINAD Sub VHF or UHF band 0 25 V or less in VHF VHF or UHF UHF mode Selectivity 6dB 12kHz or more Selectivity 40dB 28kHz or less Squelch
28. 1 16W R540 RK73GB1J184J CHIP R 180K J 1 16W R543 RK73GB1J222J CHIP R 2 2K J 1 16W R544 RK73GB1J472J CHIP R 4 7K J 1 16W R545 RK73GB1J103J CHIP R 10K J 1 16W R546 R92 1252 05 CHIP R 0 OHM J 1 16W R547 RK73GB1J184J CHIP R 180K J 1 16W R548 RK73GB1J823J CHIP R 82K J 1 16W R549 R92 1252 05 CHIP R 0 OHM J 1 16W R550 RK73GB1J332J CHIP R 3 3K J 1 16W R551 RK73GB1J220J CHIP R 22 J 1 16W R552 RK73GB1J104J CHIP R 100K J 1 16W R553 RK73GB1J101J CHIP R 100 J 1 16W R554 RK73GB1J102J CHIP R 1 0K J 1 16W R555 RK73GB1J822J CHIP R 8 2K J 1 16W R604 607 R92 1252 05 CHIP R 0 OHM J 1 16W R635 RK73GB1J474J CHIP R 470K J 1 16W R636 RK73GB1J223J CHIP R 22K J 1 16W R642 643 RK73GB1J473J CHIP R 47K J 1 16W R644 RK73GB1J474J CHIP R 470K J 1 16W R645 RK73GB1J563J CHIP R 56K J 1 16W TM V708A PARTS LIST 28 Ref No Parts No Description Address New parts Ref No Parts No Description Address New parts Destination Destination TX RX UNIT X57 5860 12 R646 RK73GB1J223J CHIP R 22K J 1 16W R647 RK73GB1J104J CHIP R 100K J 1 16W R648 RK73GB1J102J CHIP R 1 0K J 1 16W R650 655 RK73GB1J473J CHIP R 47K J 1 16W R658 R92 1252 05 CHIP R 0 OHM J 1 16W R659 R92 0670 05 CHIP R 0 OHM R661 662 R92 0670 05 CHIP R 0 OHM R663 RK73GB1J103J CHIP R 10K J 1 16W R664 665 RK73GB1J102J CHIP R 1 0K J 1 16W R666 RK73GB1J473J CHIP R 47K J 1 16W R6
29. 1 16W TM V708A PARTS LIST Ref No Parts No Description Address New parts Ref No Parts No Description Address New parts Destination Destination 27 TX RX UNIT X57 5860 12 R330 RK73GB1J470J CHIP R 47 J 1 16W R331 RK73GB1J102J CHIP R 1 0K J 1 16W R332 RK73GB1J182J CHIP R 1 8K J 1 16W R333 RK73GB1J822J CHIP R 8 2K J 1 16W R334 RK73GB1J271J CHIP R 270 J 1 16W R335 RK73GB1J102J CHIP R 1 0K J 1 16W R336 RK73GB1J101J CHIP R 100 J 1 16W R337 RK73GB1J222J CHIP R 2 2K J 1 16W R338 RK73GB1J224J CHIP R 220K J 1 16W R339 RK73GB1J222J CHIP R 2 2K J 1 16W R340 R92 1252 05 CHIP R 0 OHM J 1 16W R341 RK73GB1J101J CHIP R 100 J 1 16W R342 344 RK73GB1J222J CHIP R 2 2K J 1 16W R345 RK73GB1J102J CHIP R 1 0K J 1 16W R346 RK73GB1J122J CHIP R 1 2K J 1 16W R347 RK73GB1J222J CHIP R 2 2K J 1 16W R348 RK73GB1J822J CHIP R 8 2K J 1 16W R349 RK73GB1J101J CHIP R 100 J 1 16W R350 RK73GB1J102J CHIP R 1 0K J 1 16W R351 RK73GB1J470J CHIP R 47 J 1 16W R352 RK73GB1J101J CHIP R 100 J 1 16W R353 RK73GB1J334J CHIP R 330K J 1 16W R354 RK73GB1J471J CHIP R 470 J 1 16W R355 RK73GB1J221J CHIP R 220 J 1 16W R356 RK73GB1J4R7J CHIP R 4 7 J 1 16W R357 RK73GB1J100J CHIP R 10 J 1 16W R358 RK73GB1J222J CHIP R 2 2K J 1 16W R359 RK73GB1J102J CHIP R 1 0K J 1 16W R360 RK73GB1J331J CHIP R 330 J 1 16W R361 RK73GB1J152J CHIP R 1 5K J 1 16W R36
30. 20 V 121dBm SSG MOD 60 1kHz 6 FREQ 223 100MHz SSG 0 20 V 121dBm SSG MOD 60 1kHz Band B 7 FREQ 444 350MHz SSG 0 07 V 130dBm SSG DEV 3kHz MOD 1kHz 8 FREQ 437 100MHz SSG 0 07 V 130dBm SSG DEV 3kHz MOD 1kHz 9 FREQ 868 900MHz SSG 0 40 V 115dBm SSG DEV 3kHz MOD 1kHz Band B Sub band 10 FREQ 146 350MHz SSG 0 07 V 130dBm SSG DEV 3kHz MOD 1kHz Band A Sub band 11 FREQ 444 350MHz SSG 0 07 V 130dBm SSG DEV 3kHz MOD 1kHz 12 FREQ 390 100MHz SSG 0 40 V 115dBm SSG DEV 3kHz MOD 1kHz 13 FREQ 444 350MHz SSG 0 20 V 121dBm SSG MOD 60 1kHz 14 FREQ 390 100MHz SSG 0 707 V 110dBm SSG MOD 60 1kHz 1 Band A FREQ 146 050MHz SSG OFF Set to the point where noise will be erased by turning the squelch knob 2 SSG 0 126 V 125dBm 3 Squelch knob clockwise MAX 4 Band B FREQ 444 150MHz Set to the point where noise will be erased by turning the squelch knob 4 Squelch write 5 Squelch check SSG Rear ANT panel EXT SP SSG Rear ANT Oscilloscope panel EXT SP Display SET key Write Display Check Check Check SQL knob position 8 00 11 00 BUSY lights off Squelch open BUSY lights on AF output disappear BUSY lights off SQL knob position 8 00 11 00 BUSY lights off TM V708A 41 ADJUSTMENT 5 Squelch check 6 S meter write 5 SSG 0 112 V 126dBm 6 Squelch knob clockwise MAX 7 Band B Sub band F
31. C383 R517 C519 R514 1 2 4 3 L505 C336 R338 C518 L304 R335 D305 D306 C334 R339 Q906 R500 R336 R506 R343 C338 R340 R342 D309 Q907 1 2 3 5 4 1 2 3 5 4 1 2 3 5 4 1 2 3 5 4 1 2 3 5 4 R518 R521 R529 R516 R531 R519 R341 R344 C343 R524 R526 R347 R349 RS14 R345 R543 R359 R352 L305 R348 L524 R236 L520 L522 C554 L516 R525 C539 Q501 C517 Q502 C520 R513 C409 L309 C360 L211 R237 C233 R238 R200 C228 C229 C222 C221 C219 C220 Q203 C216 R216 L203 1 2 4 3 C212 R212 Q201 C206 Q200 C211 C208 Q202 1 2 4 3 C109 L100 SMV SQV R107 C105 C102 R112 L7 C53 Q9 R52 C528 C524 R914 R913 Q904 R45 R43 Q903 B C E B C E D900 T8A R57 T8U R50 R48 R915 Q909 R23 R300 R31 R334 R331 R232 D208 D209 D207 R44 C42 Q8 E C B E C B D11 C22 R19 R21 R702 R102 R117 R37 R700 R701 C627 C626 C625 C624 R604 R605 R607 R22 R234 R206 D6 R233 C71 L215 C242 R642 C613 R665 R714 R668 R653 R652 R711 R710 R709 R664 R666 R713 R864 R873 R635 R823 F900 C19 C320 R651 R650 R806 R
32. D316 F9 D317 E8 D318 E8 D500 H7 D502 I8 D503 I8 D505 G9 D507 H9 D509 G8 D510 H8 D602 O11 D605 K4 D801 N10 Ref NO Address D803 E3 D900 H4 D904 F6 D905 F5 49 50 TX RX UNIT X57 5860 12 Foil side view J72 0653 11 Component side Foil side Layer 1 Layer 2 Layer 3 Layer 4 DTA144EE 2SC4617 2SC5108 2SC5066 E C B TC7S66FU 1 2 3 4 5 MA742 2 3 1 TA31136FN 8 1 9 16 LC73881M 78F4218AGJZXA 50 51 75 76 100 1 25 26 2SB1132 2SC2954 2SC3357 FMA5 UMC4N 2SA1774 2SC4997 TC4W53FU 2SK302 2SK1875 3SK239A E C B 2 1 3 4 5 B C E G S D D G S 2 4 1 3 PST9130NR TA4002F NJM78L05UA NJM2100V UPB1509GV BU8241FS AT25128N10SI27 TC75S59F 1 2 3 4 5 1 3 4 2 1 3 12 1 24 13 4 3 2 1 5 6 7 8 1 3 4 5 2 1 5 6 10 8 1 5 4 1 2 3 4 8 7 6 5 TM V708A PC BOARD L503 L209 L207 L204 L201 VIN IC700 1 5 10 6 D803 Q908 IC601 1 3 5 4 L401 L102 L200 D13 IC100 1 8 16 9 1 8 16 9 L500 C386 CN1 D312 Q306 1 2 5 34 IC400 IC604 1 25 75 51 26 50 100 76 C500 C501 C429 R501 Q505 C337 C341 C342 C339 C340 R346 L20
33. Q501 502 2SK302 GR Q505 2SK1875 V Q508 3SK239A TM V708A 5 CIRCUIT DESCRIPTION IF IC IC100 IF AMP X3 X2 AF MCF XF100 CF 12 8MHz SINGLE BALANCED MIXER RF AMP HPF HPF LPF Q112 2SC5108 Y Q102 2SC4649 N P Q200 201 2SK302 GR Q7 2SC5108 Y Q508 3SK239A 38 4MHz ANT Fig 4 Sub VHF Receiver circuit Fig 5 Sub UHF Receiver circuit 2 3 Sub VHF Receiver The signal distributed from the RF amplifier Q205 at the main VHF receiver circuit passes through a filter circuit Then it enters the RF amplifier Q507 The amplified signal goes to the single balanced mixer Q501 Q502 The frequency of the signal is converted by the first local oscillator generated by half of the UHF VCO oscillator frequency using the prescaler IC303 It convents to the upper heterodyne frequency to generate a 45 05MHz first IF signal The signal passes through the MCF XF400 Then it is amplified by the IF amplifier Q406 and enters the IF IC IC400 The signal is converted to the 455kHz second IF signal using the second local oscillator Upper heterodyne Then the signal is detected to generate an audio signal 2 4 Sub UHF Receiver The signal distributed from the RF amplifier Q508 at the main UHF receiver circuit passes through a lifter circuit Then it enters the single balanced mixer Q200 Q201 The signal frequency is converted by the first local oscillator generated
34. be mute 6 SQC Squelch control output This outputs squelch control output A Approx 1m E 1 Brown 2 Red 3 Orange 4 Yellow 5 Green 6 Blue Shield wire Orange wire Blue wire Short circuit Soldering Join these DIN pins Cut unnecessary wires at the bottom and wind insulation tape around top edge 5 Bracket 6 3 Pin assignment seen from direction A 4 1 2 Cut the cable at suitable length TM V708A 35 ADJUSTMENT Parts layout Front panel Rear panel Adjustment parts layout TX RX UNIT Foil side view Unit under Adjustment parts No TC1 Transmission frequency VHF TC300 Transmission frequency UHF L204 BPF VHF L207 BPF VHF L209 BPF VHF L102 AF distortion VHF L200 AF distortion VHF L401 AF distortion UHF L500 AF distortion UHF F MHz TONE REV LOW MUTE CTRL VOL BAND SEL BAND A VOL BAND SEL BAND B SQL BAND A PWR PM MNU CALL VFO MR Encoder SQL BAND B SP ANT Test point SMV BPF L209 L207 L204 L401 L102 L200 L500 TC300 TC1 SMV TM V708A 36 ADJUSTMENT Adjustment mode This is the adjustment mode for making adjustments or setting levels The following items can be adjusted or set A Squelch open sensitivity B S meter the first segment ON all segments ON C Transmission output power lower limit frequency center frequency and upper limi
35. by doubling the VHF VCO oscillator frequency Lower heterodyne by Q7 to generate a 38 85MHz first IF signal The signal passes through the MCF XF100 Then it is amplified by the IF amplifier Q112 and enters the IF IC IC100 The signal is converted to the 450kHz second IF signal by the second local oscillator generated by tripling the 12 8MHz reference oscillator frequency Lower heterodyne Then the signal is detected to generate an audio signal IF AMP MCF XF400 HPF SINGLE BALANCED MIXER LPF RF AMP LPF Q406 2SC5108 Y Q501 502 2SK302 GR LO RF AMP Q507 3SK239A 1 2 IC303 UPB 1509GV Q205 3SK239A AF 45 505MHz IF IC IC400 CF ANT TM V708A 6 CIRCUIT DESCRIPTION Item Rating Center Frequency 45 05MHz Pass band width 7 5kHz or more at 3dB Attenuation band width 22kHz or less at 25dB Guaranteed attenuation 80dB or more within fo 910kHz Spurious 40dB or more within 1MHz Ripple 1dB or less Insertion loss 4dB or less Termination impedance 800 10 2pF 10 Item Rating Nominal center frequency 455kHz 6dB band width 7 5kHz or more from 455kHz 50dB band width 15 0kHz or less from 455kHz Ripple 2dB or less within 455 5kHz Insertion loss 6dB or less at maximum output point Guaranteed attenuation 35dB or more within 455 100kHz I O matching 1 5k terminating impedance Item Rating Center Frequency 3
36. sensitivity 0 1 V or less Audio output 8 ohms 5 distortion 2W or higher Audio output impedance 8 Specifications are subject to change without notice due to advancements in technology Note Receiver specifications apply only when using the main VHF or UHF band They do not apply to the sub VHF or UHF band in VHF VHF or UHF UHF mode SPECIFICATIONS KENWOOD CORPORATION 2967 3 Ishikawa machi Hachioji shi Tokyo 192 8525 Japan KENWOOD U S A CORPORATION P O BOX 22745 2201 East Dominguez Street Long Beach CA 90801 5745 U S A KENWOOD ELECTRONICS CANADA INC 6070 Kestrel Road Mississauga Ontario Canada L5T 1S8 KENWOOD ELECTRONICS DEUTSCHLAND GMBH Rembr cker Str 15 63150 Heusenstamm Germany KENWOOD ELECTRONICS BELGIUM N V Leuvensesteenweg 248 J 1800 Vilvoorde Belgium KENWOOD ELECTRONICS FRANCE S A 13 Boulevard Ney 75018 Paris France KENWOOD ELECTRONICS U K LIMITED KENWOOD House Dwight Road Watford Herts WD18 9EB United Kingdom KENWOOD ELECTRONICS EUROPE B V Amsterdamseweg 37 1422 AC Uithoorn The Netherlands KENWOOD ELECTRONICS ITALIA S p A Via G Sirtori 7 9 20129 Milano Italy KENWOOD IBERICA S A Bolivia 239 08020 Barcelona Spain KENWOOD ELECTRONICS AUSTRALIA PTY LTD A C N 001 499 074 16 Giffnock Avenue Centrecourt Estate North Ryde N S W 2113 Australia KENWOOD ELECTRONICS HONG KONG LTD Unit 3712 3724 Level 37 Tower one Metroplaza 223 Hing Fong Road Kwai Fong N T Hong
37. 0 J 1 16W R4 RK73GB1J332J CHIP R 3 3K J 1 16W R5 RK73GB1J220J CHIP R 22 J 1 16W R6 RK73GB1J223J CHIP R 22K J 1 16W R7 9 RK73GB1J102J CHIP R 1 0K J 1 16W R10 RK73GB1J223J CHIP R 22K J 1 16W R11 RK73GB1J103J CHIP R 10K J 1 16W R12 RK73GB1J682J CHIP R 6 8K J 1 16W R13 RK73GB1J332J CHIP R 3 3K J 1 16W R14 RK73GB1J101J CHIP R 100 J 1 16W R15 RK73GB1J122J CHIP R 1 2K J 1 16W R16 RK73GB1J101J CHIP R 100 J 1 16W R17 RK73GB1J471J CHIP R 470 J 1 16W R18 RK73GB1J152J CHIP R 1 5K J 1 16W R19 R92 1252 05 CHIP R 0 OHM J 1 16W R21 RK73GB1J224J CHIP R 220K J 1 16W R22 23 RK73GB1J102J CHIP R 1 0K J 1 16W R24 RK73GB1J332J CHIP R 3 3K J 1 16W R25 RK73GB1J222J CHIP R 2 2K J 1 16W R26 RK73GB1J472J CHIP R 4 7K J 1 16W R27 RK73GB1J101J CHIP R 100 J 1 16W R28 RK73GB1J222J CHIP R 2 2K J 1 16W R31 RK73GB1J470J CHIP R 47 J 1 16W R32 RK73GB1J473J CHIP R 47K J 1 16W R36 RK73GB1J102J CHIP R 1 0K J 1 16W R37 38 R92 1252 05 CHIP R 0 OHM J 1 16W R39 RK73GB1J101J CHIP R 100 J 1 16W R40 RK73GB1J222J CHIP R 2 2K J 1 16W R41 RK73GB1J154J CHIP R 150K J 1 16W R42 44 RK73GB1J222J CHIP R 2 2K J 1 16W R45 RK73GB1J822J CHIP R 8 2K J 1 16W R46 RK73GB1J100J CHIP R 10 J 1 16W R47 RK73GB1J222J CHIP R 2 2K J 1 16W R48 RK73GB1J560J CHIP R 56 J 1 16W R49 RK73GB1J470J CHIP R 47 J 1 16W R50 RK73GB1J152J CHIP R 1 5K J 1 16W R51 RK73F
38. 00bps mode 9600bps mode communications are FAST FM mode of SSTV GMSK and G3RUH packet communications Unlike with 1200bps AFSK with this type of high speed modulation frequency modulation is carried out after the digital base band signals rectangular wave are passed through a band limiting filter For 9600bps GMSK for example compared to 4800Hz signals nearly sine wave signals passed through a filter these signals have a hissing sound like digital modulation when listened to by ear Fig 16 Transmission signals Different types of modulation such as GMSK and G3RUH are distinguished by the type of band limiting filter 7 1 Transmission signals Transmission modulation signals enter from PKD of the data tenninals J700 The path to the modulation depends on whether communications are 1200bps or 9600bps mode For 1200bps mode the transmission modulation signals pass through the analog switch IC803 and are input to IC801 Pin 6 The signals pass through the pre emphasis Q801 Q802 are adjusted by the electronic volume and are input to the VCO For 9600bps mode the transmission modulation signals pass through IC803 and amplified by the tone amp IC802 Then it is adjusted by the electronic volume and are input to the VCO The frequency shift depends on the input signal level so there is an amplitude limiting circuit D702 D703 to hold the signal below 4 Vp p to avoid extreme shifts Thanks to this circuit the PKD sign
39. 01 C517 Q502 C520 R513 C409 L309 C360 L211 R237 C233 R238 R200 C228 C229 C222 C221 C219 C220 Q203 C216 R216 L203 1 2 4 3 C212 R212 Q201 C206 Q200 C211 C208 Q202 1 2 4 3 C109 L100 SMV SQV R107 C105 C102 R112 L7 C53 Q9 R52 C528 C524 R914 R913 Q904 R45 R43 Q903 B C E B C E D900 T8A R57 T8U R50 R48 R915 Q909 R23 R300 R31 R334 R331 R232 D208 D209 D207 R44 C42 Q8 E C B E C B D11 C22 R19 R21 R702 R102 R117 R37 R700 R701 C627 C626 C625 C624 R604 R605 R607 R22 R234 R206 D6 R233 C71 L215 C242 R642 C613 R665 R714 R668 R653 R652 R711 R710 R709 R664 R666 R713 R864 R873 R635 R823 F900 C19 C320 R651 R650 R806 R808 Q603 R654 R658 R655 R673 R672 R670 X600 R636 C712 R716 R822 R826 C815 C814 C812 C817 C822 C808 C872 F800 R804 R800 R805 R802 R817 D801 R832 C825 C824 R830 C820 C827 R831 R829 R828 R827 C853 R819 R821 C112 R114 R131 C121 R116 R111 D502 UIN R215 R229 R42 R39 R28 R208 R163 R127 L1 C31 R912 R368 R357 R361 R355 R320 R14 R326 R26 R
40. 03 I3 D904 N6 D905 N5 Component side Foil side Layer 1 Layer 2 Layer 3 Layer 4 TM V708A PC BOARD L503 L209 L207 L204 L201 VIN IC700 1 5 10 6 D803 Q908 IC601 1 3 5 4 L401 L102 L200 D13 IC100 1 8 16 9 1 8 16 9 L500 C386 CN1 D312 Q306 1 2 5 34 IC400 IC604 1 25 75 51 26 50 100 76 C500 C501 C429 R501 Q505 C337 C341 C342 C339 C340 R346 L202 L101 L508 C234 R235 R705 C561 Q601 C509 T8V C903 C901 C900 X700 R816 R814 C810 R872 R870 C114 C210 R217 C213 C907 C909 C507 C505 C911 C906 C913 C248 1 3 5 4 C25 C326 C232 C231 C29 C83 C710 C809 R813 R643 R644 C612 Q804 C845 C847 Q805 C848 R865 C862 C912 C910 C243 C27 Q3 C802 C801 R812 IC800 1 3 5 4 C804 C931 D905 D904 C251 C614 C622 C617 C619 C620 C618 R663 Q604 IC603 O G I C803 C805 R811 R606 R508 C302 R304 TC300 C305 C304 IC300 1 4 8 5 R307 R303 R301 R866 C861 R869 C15 C12 C17 C905 Q102 C103 C110 C860 R871 C859 R868 R867 C823 Q800 IC801 1 4 8 5 R825 C819 R256 R251 IC200 C249 R209
41. 08 Y IC302 KCH28 POWER AMP DRIVER DRIVER RF AMP LPF Q9 2SC2954 Q8 2SC3357 Q6 2SC5108 Y VHF VCO IC2 KCH38 M67746 M57788MR 24 ANT ANT TM V708A 9 CIRCUIT DESCRIPTION Fig 10 APC circuit 3 3 APC circuit The Automatic transmission Power Control APC circuit has a differential amplifier IC200 that compares the DC voltage generated by detecting part of the transmission output using diodes VHF D18 D19 UHF D317 D318 with DC AMP DB Q208 2SB1565 E F DC AMP COMPARATOR Q209 2SC4617 R IC200 TA75S01F D318 D317 D19 D18 VHF UHF CPU the reference voltage output from the CPU The output signal is amplified by Q209 and Q208 and fed to the power module to keep transmission output constant 3 4 Overheating protection circuit To protect from the thermal destruction of the power module the voltage of the thermistor TH1 near the power module is monitored by the CPU IC604 If it becomes high temperature the APC voltage is controlled to cool down the temperature 4 PLL circuit 4 1 Reference oscillator circuit The 12 8MHz signal is generated by the crystal oscillator circuit IC1 and IC301 and internally divided to generate 5kHz or 6 25kHz reference frequency The 12 8MHz signal on IC1 side is tripled by Q102 to obtain the second local oscillator for the A band The reference oscillation circuit is also modulated to improve the modulation characteristics of
42. 09 RF switch UHF D510 RF switch UHF D602 Reverse flow prevention Reset switch detection D605 Reverse flow prevention M5C D700 Bias PR9 D701 Bias PR1 D702 Over voltage prevention PKD D703 Over voltage prevention PKD D800 Reverse flow prevention MIC 8V D801 Reverse flow prevention D803 Voltage drop D900 Voltage OR T8A D902 Power supply reference voltage PB D903 Over voltage detection PB D904 Reverse connection prevention DC IN D905 Reverse connection prevention DC IN TH1 Temperature detection PANEL UNIT X54 3290 00 Ref No Application Function Operation Condition Compatibility IC1 Serial transmission buffer IC2 Serial transmission buffer IC3 AVR with reset function IC4 Control microcomputer IC5 ROM Q1 Power switch Q2 4 6 Dimmer 7 9 10 D1 Reverse flow prevention D2 Reset circuit D3 23 Over voltage prevention Surge elimination D24 30 Key illumination TM V708A 19 TERMINAL FUNCTION TX RX UNIT X57 5860 12 CN No Pin No Name Function CN601 1 VCK VS 3 clock 2 VDT VS 3 data 3 VCS VS 3 chip select 4 RST VS 3 reset 5 NAR VS 3 input enable 6 E GND 7 C5 Common 5V 8 VO VS 3 audio CN800 1 INT SP Internal speaker 2 E GND CN900 1 Fan power supply 2 Fan GND PANEL UNIT X54 3290 00 CN No Pin No Name Function CN1 1 D7 LCD driver data 2 D6 LCD driver data 3 D5 L
43. 104K CHIP C 0 10UF K C101 CK73GB1H102K CHIP C 1000PF K C102 CC73GCH1H220J CHIP C 22PF J C103 CK73GB1H103K CHIP C 0 010UF K C105 CC73GCH1H050C CHIP C 5 0PF C C107 108 CK73GB1C104K CHIP C 0 10UF K C109 CK73GB1H102K CHIP C 1000PF K C110 CC73GCH1H270J CHIP C 27PF J C111 CK73GB1H102K CHIP C 1000PF K C112 CK73GB1C104K CHIP C 0 10UF K C113 C92 0610 05 CHIP ELE 47UF 16WV C114 CK73GB1C104K CHIP C 0 10UF K C116 CK73GB1H471K CHIP C 470PF K C118 CK73GB1C473K CHIP C 0 047UF K C119 CK73GB1C104K CHIP C 0 10UF K C120 CC73GCH1H270J CHIP C 27PF J C121 CK73GB1C104K CHIP C 0 10UF K C122 CC73GCH1H271J CHIP C 270PF J C123 124 CK73GB1C104K CHIP C 0 10UF K C125 CC73GCH1H271J CHIP C 270PF J C126 CK73GB1C104K CHIP C 0 10UF K C128 CC73GCH1H101J CHIP C 100PF J C129 CK73GB1H472K CHIP C 4700PF K C131 CK73GB1C104K CHIP C 0 10UF K C132 CC73GCH1H150J CHIP C 15PF J C133 CK73GB1H102K CHIP C 1000PF K C134 CK73GB1C104K CHIP C 0 10UF K C135 CK73GB1H102K CHIP C 1000PF K C137 CK73GB1C104K CHIP C 0 10UF K C138 CK73GB1E123K CHIP C 0 012UF K C139 CK73GB1H102K CHIP C 1000PF K C140 CK73GB1H103K CHIP C 0 010UF K C141 CK73GB1E123K CHIP C 0 012UF K TX RX UNIT X57 5860 12 TM V708A PARTS LIST 22 Ref No Parts No Description Address New parts Ref No Parts No Description Address New parts Destination Destination TX RX UNIT
44. 10WV C702 CK73GB1C683J CHIP C 0 068UF J C703 708 CK73FB1C105K CHIP C 1 0UF K C709 CC73GCH1H221J CHIP C 220PF J C710 C92 0695 05 CHIP TAN 10UF 10WV C711 CK73FB1C105K CHIP C 1 0UF K C712 CK73GB1H103K CHIP C 0 010UF K C713 CK73GB1H222K CHIP C 2200PF K C715 716 CK73FB1C105K CHIP C 1 0UF K C717 CK73GB1E123K CHIP C 0 012UF K C719 CK73GB1C683J CHIP C 0 068UF J C720 721 CK73FB1C105K CHIP C 1 0UF K C722 CK73GB1C104K CHIP C 0 10UF K C724 C92 0606 05 CHIP TAN 4 7UF 10WV C725 727 CC73GCH1H101J CHIP C 100PF J C728 CK73GB1C104K CHIP C 0 10UF K C729 CK73GB1C473K CHIP C 0 047UF K C730 CC73GCH1H101J CHIP C 100PF J C732 733 CC73GCH1H101J CHIP C 100PF J C734 CK73FB1C105K CHIP C 1 0UF K TM V708A PARTS LIST 24 Ref No Parts No Description Address New parts Ref No Parts No Description Address New parts Destination Destination TX RX UNIT X57 5860 12 C736 737 CK73FB1C105K CHIP C 1 0UF K C738 739 CC73GCH1H101J CHIP C 100PF J C743 CK73GB1C473K CHIP C 0 047UF K C800 802 CK73GB1H103K CHIP C 0 010UF K C803 CK73GB1H471K CHIP C 470PF K C804 CK73GB1H103K CHIP C 0 010UF K C805 CK73GB1H471K CHIP C 470PF K C806 807 CK73GB1H103K CHIP C 0 010UF K C808 CK73GB1E223K CHIP C 0 022UF K C809 CC73GCH1H101J CHIP C 100PF J C810 CK73GB1H471K CHIP C 470PF K C812 CK73GB1C273K CHIP C 0 027UF K C814 CK73GB1H102K CHIP C 1000PF K C815
45. 144 440MHz FM DUAL BANDER TM V708A 2004 11 PRINTED IN JAPAN B51 8704 00 S 237 SERVICE MANUAL CIRCUIT DESCRIPTION 2 SEMICONDUCTOR DATA 14 COMPONENTS DESCRIPTION 17 TERMINAL FUNCTION 19 PARTS LIST 20 EXPLODED VIEW 31 PACKING 32 ADJUSTMENT 33 PC BOARD TX RX UNIT X57 5860 12 47 PANEL UNIT X54 3290 00 53 SCHEMATIC DIAGRAM 57 BLOCK DIAGRAM 67 INTERCONNECTION DIAGRAM 69 LEVEL DIAGRAM 70 OPTION PG 4X 71 SPECIFICATIONS BACK COVER CONTENTS Cabinet UPPER A01 2122 23 Knob ENC K29 5381 03 Panel DISPLAY A62 0775 03 Microphone T91 0636 05 Knob VOL K29 5222 03 Knob SQL K29 5223 03 Button knob K29 5400 11 Button knob K29 5400 11 Panel MAIN UNIT A62 1122 03 TM V708A 2 CIRCUIT DESCRIPTION Model amp TX RX UNIT L
46. 1J103J CHIP R 10K J 1 16W R878 RK73GB1J473J CHIP R 47K J 1 16W R880 RK73GB1J103J CHIP R 10K J 1 16W R881 RK73GB1J223J CHIP R 22K J 1 16W R882 RK73GB1J473J CHIP R 47K J 1 16W R883 RK73GB1J223J CHIP R 22K J 1 16W R884 885 R92 1252 05 CHIP R 0 OHM J 1 16W TM V708A PARTS LIST Ref No Parts No Description Address New parts Ref No Parts No Description Address New parts Destination Destination 29 TX RX UNIT X57 5860 12 R887 R92 1252 05 CHIP R 0 OHM J 1 16W R889 R92 1252 05 CHIP R 0 OHM J 1 16W R890 891 RK73GB1J683J CHIP R 68K J 1 16W R892 RK73GB1J223J CHIP R 22K J 1 16W R900 R92 0685 05 CHIP R 22 J 1 2W R902 903 RK73GB1J102J CHIP R 1 0K J 1 16W R904 906 RK73GB1J472J CHIP R 4 7K J 1 16W R909 911 RK73GB1J472J CHIP R 4 7K J 1 16W R912 RK73GB1J182J CHIP R 1 8K J 1 16W R913 RK73GB1J103J CHIP R 10K J 1 16W R914 RK73GB1J182J CHIP R 1 8K J 1 16W R915 RK73GB1J103J CHIP R 10K J 1 16W R916 917 RK73GB1J102J CHIP R 1 0K J 1 16W R918 919 RK73GB1J103J CHIP R 10K J 1 16W R920 R92 1276 05 CHIP R 820 J 1 4W R921 922 RK73GB1J102J CHIP R 1 0K J 1 16W R926 RK73GB1J472J CHIP R 4 7K J 1 16W R927 RK73GH1J153D CHIP R 15K D 1 16W R928 R92 1252 05 CHIP R 0 OHM J 1 16W S600 S70 0446 05 TACT SWITCH D1 2 HVC350B VARIABLE CAPACITANCE DIODE D3 MA2S111 DIODE D4 DA221 DIODE D5 MA2S111 DIODE D6 DAN222 DIODE D7 DAN235E DIODE
47. 1J104J CHIP R 100K J 1 16W R732 RK73GB1J224J CHIP R 220K J 1 16W R733 R92 1252 05 CHIP R 0 OHM J 1 16W R734 RK73GB1J100J CHIP R 10 J 1 16W R735 RK73GB1J103J CHIP R 10K J 1 16W R736 RK73GB1J474J CHIP R 470K J 1 16W R737 RK73GB1J104J CHIP R 100K J 1 16W R738 R92 1252 05 CHIP R 0 OHM J 1 16W R740 743 RK73GB1J103J CHIP R 10K J 1 16W R744 747 RK73GB1J104J CHIP R 100K J 1 16W R748 RK73GB1J472J CHIP R 4 7K J 1 16W R749 RK73GB1J474J CHIP R 470K J 1 16W R750 RK73GB1J333J CHIP R 33K J 1 16W R800 802 R92 1252 05 CHIP R 0 OHM J 1 16W R803 805 RK73GB1J102J CHIP R 1 0K J 1 16W R806 RK73GB1J473J CHIP R 47K J 1 16W R807 RK73GB1J102J CHIP R 1 0K J 1 16W R808 RK73GH1J153D CHIP R 15K D 1 16W R810 RK73GB1J330J CHIP R 33 J 1 16W R811 RK73GH1J153D CHIP R 15K D 1 16W R812 RK73GB1J473J CHIP R 47K J 1 16W R813 RK73GB1J474J CHIP R 470K J 1 16W R814 RK73GB1J223J CHIP R 22K J 1 16W R815 RK73GB1J821J CHIP R 820 J 1 16W R816 RK73GB1J183J CHIP R 18K J 1 16W R817 RK73GB1J333J CHIP R 33K J 1 16W R819 RK73GB1J104J CHIP R 100K J 1 16W R821 RK73GB1J223J CHIP R 22K J 1 16W R822 R92 1252 05 CHIP R 0 OHM J 1 16W R823 RK73GB1J471J CHIP R 470 J 1 16W R824 RK73GH1J153D CHIP R 15K D 1 16W R825 RK73GH1J163D CHIP R 16K D 1 16W R826 RK73GB1J754J CHIP R 750K J 1 16W R827 RK73GH1J153D CHIP R 15K D 1 16W R828 RK73GB1J822J CHIP R 8 2K J 1 16
48. 2 L101 L508 C234 R235 R705 C561 Q601 C509 T8V C903 C901 C900 X700 R816 R814 C810 R872 R870 C114 C210 R217 C213 C907 C909 C507 C505 C911 C906 C913 C248 1 3 5 4 C25 C326 C232 C231 C29 C83 C710 C809 R813 R643 R644 C612 Q804 C845 C847 Q805 C848 R865 C862 C912 C910 C243 C27 Q3 C802 C801 R812 IC800 1 3 5 4 C804 C931 D905 D904 C251 C614 C622 C617 C619 C620 C618 R663 Q604 IC603 O G I C803 C805 R811 R606 R508 C302 R304 TC300 C305 C304 IC300 1 4 8 5 R307 R303 R301 R866 C861 R869 C15 C12 C17 C905 Q102 C103 C110 C860 R871 C859 R868 R867 C823 Q800 IC801 1 4 8 5 R825 C819 R256 R251 IC200 C249 R209 C204 R204 C202 R203 C201 C200 C153 C203 C51 C74 C66 C72 C80 C60 C59 D18 C76 C82 D19 C65 C67 C52 C43 D12 C44 C45 C46 C50 C49 Q6 R40 C38 D17 C36 R46 C86 C79 Q7 C48 C58 C37 R205 C207 D205 D206 D202 C218 R207 C209 C41 C118 C235 C236 R242 C239 C241 D211 C542 C544 C548 C531 C523 C364 Q506 C537 C534 C529 C536 C543 C514 C515 L525
49. 3 R92 1217 05 CHIP R 0 OHM R364 R92 0670 05 CHIP R 0 OHM R366 R92 0670 05 CHIP R 0 OHM R368 R92 1213 05 CHIP R 100 J 1 2W R369 370 RK73GB1J103J CHIP R 10K J 1 16W R371 RK73GB1J560J CHIP R 56 J 1 16W R379 RK73GB1J221J CHIP R 220 J 1 16W R380 RK73GB1J223J CHIP R 22K J 1 16W R381 RK73GB1J152J CHIP R 1 5K J 1 16W R382 RK73GB1J331J CHIP R 330 J 1 16W R383 RK73GB1J474J CHIP R 470K J 1 16W R384 RK73GB1J102J CHIP R 1 0K J 1 16W R385 386 RK73GB1J104J CHIP R 100K J 1 16W R387 RK73GB1J124J CHIP R 120K J 1 16W R388 RK73GB1J274J CHIP R 270K J 1 16W R390 RK73GB1J184J CHIP R 180K J 1 16W R391 RK73GB1J222J CHIP R 2 2K J 1 16W R401 R92 1252 05 CHIP R 0 OHM J 1 16W R406 R92 1252 05 CHIP R 0 OHM J 1 16W R408 RK73GB1J103J CHIP R 10K J 1 16W R409 RK73GB1J102J CHIP R 1 0K J 1 16W R410 411 RK73GB1J184J CHIP R 180K J 1 16W R413 R92 1252 05 CHIP R 0 OHM J 1 16W R414 RK73GB1J222J CHIP R 2 2K J 1 16W R415 RK73GB1J223J CHIP R 22K J 1 16W R417 RK73GB1J474J CHIP R 470K J 1 16W R418 RK73GB1J102J CHIP R 1 0K J 1 16W R419 RK73GB1J392J CHIP R 3 9K J 1 16W R420 R92 1252 05 CHIP R 0 OHM J 1 16W R422 RK73GB1J103J CHIP R 10K J 1 16W R423 R92 1252 05 CHIP R 0 OHM J 1 16W R425 RK73GB1J274J CHIP R 270K J 1 16W R426 RK73GB1J471J CHIP R 470 J 1 16W R427 RK73GB1J392J CHIP R 3 9K J 1 16W R428 RK73GB1J472J CHIP R 4 7K J 1 16W R429 430 RK
50. 3 0 O Dimmer output 27 PSW O Power SW control output 28 BS O Beat shift output 29 NC I Not used VCC 30 NC I Not used VCC 31 KYF4 I F5 key input L 32 KYF5 I F6 key input L 33 TXD0 O Serial port for connecting to TX RX unit 34 RXD0 I Serial port for connecting to TX RX unit 35 NC I Not used VCC 36 NC I Not used VCC 37 41 NC I Not used 42 RD Read signal 43 NC Not used 44 WR Write signal 45 LCDA0 O LCD Address 0 46 LCDCD2 O LCD chip select 2 47 LCDCD1 O LCD chip select 1 48 CS0 Flash ROM chip select signal 49 A19 Not used Open 50 59 A18 9 Address bus 18 9 60 VCC Power supply input 61 A8 Address bus 8 62 VSS GND 63 70 A7 0 Address bus 7 0 71 78 LCDD7 0 I O LCD data bus 7 0 79 86 D7 0 Data bus 7 0 87 LCDRD O LCD read terminal 88 LCDWR O LCD write terminal 89 LCDRES O LCD reset 90 PWR I POWER key input key interrupt L 91 B AFVR I B band R AF VOL A D 92 B SQVR I B band R SQ VOL A D 93 A AFVR I A band L AF VOL A D 94 AVSS Analog power input GND 95 A SQVR I A band L SQ VOL A D 96 VREF A D reference voltage input 97 AVCC Analog power supply input 5C 98 MHz I MHz key input L 99 B_KEY I B BAND SEL key input L 100 A_KEY I A BAND SELl key input L Pin Port Name I O Function Active
51. 413 C800 IC701 1 4 8 5 C719 C702 J801 R138 C135 CF401 R726 C728 R836 R154 C145 R720 C733 R731 C730 C727 C726 C725 C307 C308 C309 C311 Q914 IC302 IC2 R418 C857 C829 C832 R841 C833 IC802 1 3 5 4 C244 L11 C62 C55 C57 C61 C54 R158 C129 R125 C123 R122 R149 C142 R141 R137 C140 C139 C134 R134 Q106 C137 R129 C124 R146 R150 C144 C366 L316 C330 C425 R409 R427 C422 IC101 1 4 8 5 C321 C8 C6 C28 C23 R433 R426 C424 R434 L400 C406 R155 R106 R156 C132 D800 C806 R730 R722 R727 R721 R725 R719 R724 D304 R329 Q303 D5 Q4 R24 R910 Q911 E C B Q910 R853 R8 R314 R852 R903 R916 R7 R313 R902 R917 R911 R854 R703 R909 R906 R905 Q104 R58 R904 R310 R5 C902 Q912 E B C CN900 R851 R858 R857 R712 R715 R718 C717 R717 C423 R429 R153 C146 R810 R803 C828 R834 R706 R645 R846 C852 R850 C836 R849 C835 R140 R142 R151 R118 C410 R414 C416 Q801 R835 Q802 R840 D700 Q700 R311 R859 R312 R3 R132 R130 R133 R136 R126 C9 D3 R6 C734 C736 R734 R733 C729 R729 R9 R728
52. 541 R523 R527 C382 C535 L513 R520 C540 R507 Q508 1 2 4 3 C560 L521 R540 R537 C538 R522 C378 C385 C384 C376 D314 R360 C356 L308 R358 R353 L306 R350 C350 L303 R333 C329 R327 L301 C327 C323 R413 R319 Q300 R321 R322 R323 R10 R11 R13 C93 C368 C373 C380 C69 C77 R544 R545 Q500 R363 L216 L217 R259 C925 D307 D310 D500 D503 D505 D7 D9 R371 CN601 1 8 VO C5 E NAR RST VCS VDT VCK C100 C107 C703 C704 C705 C706 C707 C708 C715 C716 R249 C629 R647 R648 C711 R680 R681 R874 R875 IC602 1 4 8 5 IC702 1 12 24 13 RM80 C252 C253 C254 C255 C322 C393 C394 C395 C397 C562 1 2 4 3 C563 C564 C565 C864 C865 D213 D214 D509 D510 IC501 L219 L220 L526 L527 L528 L529 L530 R260 R261 R262 R264 R379 R380 R381 R546 R547 R548 R549 R62 R688 R877 R878 R887 L517 L602 L603 Q205 1 2 4 3 Q305 Q507 C225 C226 C227 C92 D204 Q210 R226 R228 R230 R265 R266 L205 L206 L221 L222 C399 Q113 R166 R167 R168 IC304 1 3 5 4 R382 R383 CN602 1 10 STS M5C VPP RESET SCK SI2 SO2 GND L15 L210 C256 R263
53. 68 RK73GB1J473J CHIP R 47K J 1 16W R669 RK73GB1J472J CHIP R 4 7K J 1 16W R670 R92 1252 05 CHIP R 0 OHM J 1 16W R672 673 RK73GB1J474J CHIP R 470K J 1 16W R675 R92 0670 05 CHIP R 0 OHM R676 RK73GB1J473J CHIP R 47K J 1 16W R680 681 R92 1252 05 CHIP R 0 OHM J 1 16W R683 687 RK73GB1J473J CHIP R 47K J 1 16W R688 RK73GB1J102J CHIP R 1 0K J 1 16W R690 R92 1252 05 CHIP R 0 OHM J 1 16W R700 702 RK73GB1J104J CHIP R 100K J 1 16W R703 704 RK73GB1J223J CHIP R 22K J 1 16W R705 RK73GB1J474J CHIP R 470K J 1 16W R706 RK73GB1J104J CHIP R 100K J 1 16W R707 RK73GB1J394J CHIP R 390K J 1 16W R708 RK73GB1J823J CHIP R 82K J 1 16W R709 711 RK73GB1J102J CHIP R 1 0K J 1 16W R712 RK73GB1J824J CHIP R 820K J 1 16W R713 714 RK73GB1J102J CHIP R 1 0K J 1 16W R715 RK73GB1J184J CHIP R 180K J 1 16W R716 RK73GB1J474J CHIP R 470K J 1 16W R717 RK73GB1J184J CHIP R 180K J 1 16W R718 RK73GB1J223J CHIP R 22K J 1 16W R719 RK73GB1J224J CHIP R 220K J 1 16W R720 RK73GB1J102J CHIP R 1 0K J 1 16W R721 RK73GB1J332J CHIP R 3 3K J 1 16W R722 RK73GB1J103J CHIP R 10K J 1 16W R723 RK73GB1J102J CHIP R 1 0K J 1 16W R724 RK73GB1J472J CHIP R 4 7K J 1 16W R725 RK73GB1J224J CHIP R 220K J 1 16W R726 RK73GB1J102J CHIP R 1 0K J 1 16W R727 RK73GB1J222J CHIP R 2 2K J 1 16W R728 729 RK73GB1J102J CHIP R 1 0K J 1 16W R730 RK73GB1J154J CHIP R 150K J 1 16W R731 RK73GB
54. 73GB1J473J CHIP R 47K J 1 16W R433 RK73GB1J102J CHIP R 1 0K J 1 16W R434 RK73GB1J104J CHIP R 100K J 1 16W R438 RK73GB1J681J CHIP R 680 J 1 16W R500 501 RK73GB1J222J CHIP R 2 2K J 1 16W R502 RK73GB1J472J CHIP R 4 7K J 1 16W R503 R92 1252 05 CHIP R 0 OHM J 1 16W R504 RK73GB1J101J CHIP R 100 J 1 16W R505 RK73GB1J392J CHIP R 3 9K J 1 16W R506 RK73GB1J101J CHIP R 100 J 1 16W R507 RK73GB1J472J CHIP R 4 7K J 1 16W R508 RK73GB1J222J CHIP R 2 2K J 1 16W R509 510 RK73GB1J221J CHIP R 220 J 1 16W R511 RK73GB1J151J CHIP R 150 J 1 16W R512 RK73GB1J101J CHIP R 100 J 1 16W R513 514 RK73GB1J222J CHIP R 2 2K J 1 16W R516 RK73GB1J222J CHIP R 2 2K J 1 16W R517 RK73GB1J221J CHIP R 220 J 1 16W R518 RK73GB1J222J CHIP R 2 2K J 1 16W R519 RK73GB1J221J CHIP R 220 J 1 16W R520 RK73GB1J101J CHIP R 100 J 1 16W R521 RK73GB1J471J CHIP R 470 J 1 16W R522 RK73GB1J220J CHIP R 22 J 1 16W R523 RK73GB1J334J CHIP R 330K J 1 16W R524 525 RK73GB1J222J CHIP R 2 2K J 1 16W R526 RK73GB1J101J CHIP R 100 J 1 16W R527 RK73GB1J470J CHIP R 47 J 1 16W R528 RK73GB1J101J CHIP R 100 J 1 16W R529 RK73GB1J222J CHIP R 2 2K J 1 16W R530 RK73GB1J101J CHIP R 100 J 1 16W R531 533 RK73GB1J222J CHIP R 2 2K J 1 16W R535 RK73GB1J472J CHIP R 4 7K J 1 16W R537 RK73GB1J221J CHIP R 220 J 1 16W R538 RK73GB1J101J CHIP R 100 J 1 16W R539 RK73GB1J823J CHIP R 82K J
55. 8 85MHz Pass band width 7 5kHz or more at 3dB Attenuation band width 25kHz or less at 40dB Guaranteed attenuation 80dB or more within fo 910kHz Spurious 20dB or more within 1MHZ Ripple 1dB or less Insertion loss 3dB or less Termination impedance 500 5 6pF 0 5pF Item Rating Nominal center frequency 450kHz 6dB band width 7 5kHz or more from 450kHz 50dB band width 15 0kHz or less from 450kHz Ripple 2dB or less within 450 5kHz Insertion loss 6dB or less at minimum lost point Guaranteed attenuation 35dB or more within 450 100kHz I O matching 1 5k terminating impedance Table1 MCF L71 0491 15 TX RX Unit XF100 Table2 Ceramic filter L72 0979 05 TX RX Unit CF101 Table3 MCF L71 0409 15 TX RX Unit XF400 Table4 Ceramic filter L72 0981 05 TX RX Unit CF401 2 5 Audio Circuit The detected VHF audio signal is amplified by Q108 and de emphasized by Q110 The UHF audio signal is amplified by Q402 and de emphasized by Q405 One of these audio signals is selected with a cross point switch IC702 The signal passes through the electronic variable resistor IC804 is amplified by the AF amplifier IC806 and fed to the speaker or the external speaker jack The VHF or UHF audio signal selected by the cross point switch passes through the filter circuit IC701 and goes to the CPU IC604 for CTCSS and DCS decoding The signal buffered by Q701 is output to th
56. 808 Q603 R654 R658 R655 R673 R672 R670 X600 R636 C712 R716 R822 R826 C815 C814 C812 C817 C822 C808 C872 F800 R804 R800 R805 R802 R817 D801 R832 C825 C824 R830 C820 C827 R831 R829 R828 R827 C853 R819 R821 C112 R114 R131 C121 R116 R111 D502 UIN R215 R229 R42 R39 R28 R208 R163 R127 L1 C31 R912 R368 R357 R361 R355 R320 R14 R326 R26 R861 R505 L501 C503 Q503 1 2 4 3 C345 C301 R306 D301 D300 R305 C303 R227 R221 R231 R27 C26 C32 C3 R1 C1 R302 R257 R61 R60 X300 X1 D602 C631 C632 C418 R420 C402 R401 R255 C846 C849 C855 F902 D605 R669 F901 R109 R423 RDU R801 R807 D201 D200 C621 R750 R415 C412 CVV C120 R25 R406 L519 C549 L518 C546 R530 R535 D507 D203 C821 C319 L300 R317 R316 C405 R8UA R325 R324 CVU R330 R17 R16 R15 R18 Q1 C504 R503 C101 C351 L307 R351 Q309 E C B R354 R815 R824 R254 R258 C250 R253 R370 R369 R252 Q209 R201 C75 C73 D15 D14 C81 R38 C39 L6 R47 R32 C47 R49 R36 C35 L3 R41 L5 C34 R240 R244 D210 C527 C532 L510 C545 L523 L515 C
57. 861 R505 L501 C503 Q503 1 2 4 3 C345 C301 R306 D301 D300 R305 C303 R227 R221 R231 R27 C26 C32 C3 R1 C1 R302 R257 R61 R60 X300 X1 D602 C631 C632 C418 R420 C402 R401 R255 C846 C849 C855 F902 D605 R669 F901 R109 R423 RDU R801 R807 D201 D200 C621 R750 R415 C412 CVV C120 R25 R406 L519 C549 L518 C546 R530 R535 D507 D203 C821 C319 L300 R317 R316 C405 R8UA R325 R324 CVU R330 R17 R16 R15 R18 Q1 C504 R503 C101 C351 L307 R351 Q309 E C B R354 R815 R824 R254 R258 C250 R253 R370 R369 R252 Q209 R201 C75 C73 D15 D14 C81 R38 C39 L6 R47 R32 C47 R49 R36 C35 L3 R41 L5 C34 R240 R244 D210 C527 C532 L510 C545 L523 L515 C541 R523 R527 C382 C535 L513 R520 C540 R507 Q508 1 2 4 3 C560 L521 R540 R537 C538 R522 C378 C385 C384 C376 D314 R360 C356 L308 R358 R353 L306 R350 C350 L303 R333 C329 R327 L301 C327 C323 R413 R319 Q300 R321 R322 R323 R10 R11 R13 C93 C368 C373 C380 C69 C77 R544 R545 Q500 R363 L216 L217 R259 C925 D307 D310 D500 D503 D505 D7 D9
58. ANT switch VHF TX D18 Transmission output detection VHF D19 Transmission output detection VHF D102 AGC D200 RF switch VHF D201 RF switch SUB UHF D202 Helical tuning VHF D203 Filter tuning SUB UHF D204 RF switch D205 Helical tuning VHF D206 Helical tuning VHF D207 RF switch VHF D208 RF switch D209 RF switch SUB UHF D210 Over voltage prevention VHF D211 Over voltage prevention VHF D213 Voltage OR RM14 RS14 D214 Voltage OR RM14 RS14 D216 Band pass tuning VHF filter D217 OR circuit RM22 D300 Reference oscillation B band circuit modulation D301 Reference oscillation B band circuit modulation D302 LD waveform rectification B band D303 Step down Charge pump D304 Quick charge B band VCO ripple filter COMPONENTS DESCRIPTION Ref No Application Function Operation Condition Compatibility Ref No Application Function Operation Condition Compatibility D305 RF switch UHF LO D306 RF switch UHF TX D307 RF switch UHF LO D309 RF switch UHF LO D310 RF switch UHF LO D312 UHF Drive circuit bias UHF D313 Over voltage prevention D314 TX RF switch UHF TX D315 Over voltage prevention D316 ANT switch UHF TX D317 Transmission output detection UHF D318 Transmission output detection UHF D500 RF switch D502 RF switch SUB VHF D503 RF switch UHF D505 RF switch UHF D507 RF switch SUB UHF D5
59. B2A100J CHIP R 10 J 1 10W R52 R92 0685 05 CHIP R 22 J 1 2W R54 RK73FB2A220J CHIP R 22 J 1 10W R55 R92 0670 05 CHIP R 0 OHM R57 R92 1213 05 CHIP R 100 J 1 2W R58 RK73GB1J103J CHIP R 10K J 1 16W R60 61 RK73GB1J102J CHIP R 1 0K J 1 16W R62 RK73GB1J103J CHIP R 10K J 1 16W R63 RK73GB1J102J CHIP R 1 0K J 1 16W R64 65 RK73GB1J104J CHIP R 100K J 1 16W R67 R92 1252 05 CHIP R 0 OHM J 1 16W R68 RK73GB1J184J CHIP R 180K J 1 16W R102 R92 1252 05 CHIP R 0 OHM J 1 16W R106 RK73GB1J472J CHIP R 4 7K J 1 16W R107 RK73GB1J474J CHIP R 470K J 1 16W TM V708A PARTS LIST 26 Ref No Parts No Description Address New parts Ref No Parts No Description Address New parts Destination Destination TX RX UNIT X57 5860 12 R109 R92 1252 05 CHIP R 0 OHM J 1 16W R111 R92 1252 05 CHIP R 0 OHM J 1 16W R112 RK73GB1J101J CHIP R 100 J 1 16W R114 R92 1252 05 CHIP R 0 OHM J 1 16W R116 RK73GB1J102J CHIP R 1 0K J 1 16W R117 RK73GH1J153D CHIP R 15K D 1 16W R118 R92 1252 05 CHIP R 0 OHM J 1 16W R119 RK73GB1J474J CHIP R 470K J 1 16W R120 RK73GB1J222J CHIP R 2 2K J 1 16W R121 RK73GB1J184J CHIP R 180K J 1 16W R122 RK73GB1J332J CHIP R 3 3K J 1 16W R123 RK73GB1J222J CHIP R 2 2K J 1 16W R124 RK73GB1J184J CHIP R 180K J 1 16W R125 RK73GB1J102J CHIP R 1 0K J 1 16W R126 RK73GB1J222J CHIP R 2 2K J 1 16W R127 RK73GH1J153D CHIP R 15K D 1 16W
60. BRID IC IC303 UPB1509GV BI POLAR IC IC304 TC7S66FU MOS IC IC400 TA31136FN MOS IC IC501 TA4002F BI POLAR IC IC601 PST9130NR MOS IC IC602 AT25128A10SI27 ROM IC IC603 NJM78L05UA BI POLAR IC IC604 78F4218AGJZXA MICROPROCESSOR IC IC700 LC73881M MOS IC IC701 NJM2904V MOS IC IC702 BU8241FS MOS IC IC703 TC74HC4050AFT MOS IC IC800 TC75S59F MOS IC IC801 NJM2100V MOS IC IC802 TA75S01F MOS IC IC803 BU4066BCFV MOS IC IC804 M62364FP MOS IC IC805 NJM2904V MOS IC IC806 LA4446 BI POLAR IC IC807 808 TC4W53FU MOS IC IC900 901 BU2099FV MOS IC IC903 TA7808S MOS IC IC904 TA7805F MOS IC Q1 2SA1774 S TRANSISTOR Q2 2SC4617 R TRANSISTOR Q3 2SC5108 Y TRANSISTOR Q4 2SC4617 R TRANSISTOR Q6 7 2SC5108 Y TRANSISTOR Q8 2SC3357 TRANSISTOR Q9 2SC2954 TRANSISTOR Q10 2SJ484 FET Q11 DTC114EE DIGITAL TRANSISTOR Q102 2SC4649 N P TRANSISTOR Q103 UMC4N TRANSISTOR TM V708A PARTS LIST 30 Ref No Parts No Description Address New parts Ref No Parts No Description Address New parts Destination Destination TX RX UNIT X57 5860 12 Q104 DTA114EE DIGITAL TRANSISTOR Q105 108 2SC4617 R TRANSISTOR Q110 111 2SC4617 R TRANSISTOR Q112 2SC5108 Y TRANSISTOR Q113 2SC4617 R TRANSISTOR Q200 201 2SK302 GR FET Q202 203 3SK239A FET Q204 2SK1824 FET Q205 3SK239A FET Q207 2SK1824 FET Q208 2SB1565 E F TRANSISTOR Q209 2SC4617 R TRANSISTOR
61. CD ASSY Destination TM V708A K X57 5860 12 B38 0829 05 Name Parts number Remarks Destination K Modular cable E30 3391 05 3m 1 Panel bracket J29 0663 13 1 J29 0664 13 1 Bracket J29 0628 23 1 Microphone T91 0636 05 DTMF BACK LIT 1 DC cord E30 2111 15 1 Fuse F51 0017 15 15A 1 Mic Hook J19 1526 04 1 Instruction manual B62 1834 00 English 1 Warranty card B46 0469 20 1 Screw set N99 0382 05 For the body and MIC hook 1 Screw set N99 2014 05 For the panel bracket 1 Foot J02 0488 04 For protect from 4 scratch on a desk Model amp Guarantee frequency range MHz Output Power W Destination 144 440 144 440 TM V708A K 144 148 438 450 50 35 Outline This device is a dual band 144 440MHz FM car transceiver planned and designed for amateur radio communications and has the following features 1 Is capable of receiving packet data on one band while receiving audio on another band 2 Enhanced Programmable Memory PM channels store virtually entire current operating environments for your quick recall 3 Contains a total of 200 memory channels to program frequencies and other various data Allows each memory channel to be named using up to 8 alphanumeric and special ASCII characters 4 Visual Scan graphically and simultaneously shows the conditions of up to 181 frequency channels 5 Continuous Tone Coded Squelch System CTCSS or Digital Code Squelch DCS reje
62. CD driver data 4 D4 LCD driver data 5 D3 LCD driver data 6 D2 LCD driver data 7 D1 LCD driver data 8 D0 LCD driver data 9 RD LCD driver RD 10 WR LCD driver WR 11 A0 LCD driver A0 12 GND GND 13 CS2 LCD driver chip select 14 CS1 LCD driver chip select 15 RES LCD driver reset 16 VDD LCD driver VDD 17 VL Illumination LED control 18 VL Illumination LED control 19 PB Illumination LED power supply 20 PB Illumination LED power supply CN2 CN3 1 GND 2 VR power supply 3 Switch 4 VR voltage 5 SQL voltage PARTS LIST New Parts indicates safety critical components Parts without Parts No are not supplied Les articles non mentionnes dans le Parts No ne sont pas fournis Teile ohne Parts No werden nicht geliefert L Scandinavia K USA P Canada Y PX Far East Hawaii T England E Europe Y AAFES Europe X Australia M Other Areas Parts No Description Address New parts Destination Destination TM V708A Ref No Parts No Description Address New parts TM V708A Y51 4570 12 PANEL UNIT X54 3290 00 Ref No 20 TM V708A 72 3A K29 5222 03 KNOB VOL 73 3A K29 5223 03 KNOB SQL 74 3A K29 5381 03 KNOB ENC 75 3A K29 5400 11 BUTTON KNOB A 3A N14 0569 04 CIRCULAR NUT VOL B 1B N33 2606 45 OVAL HEAD MACHINE SCREW CASE C 2B N67 3008 46 PAN HEAD SEMS SCREW PA MODULE D 3B N80 2010 45 PAN HEAD TAPTITE
63. CH1H040C CHIP C 4 0PF C C241 CC73GCH1H101J CHIP C 100PF J C242 CK73GB1H102K CHIP C 1000PF K C243 CC73GCH1H470J CHIP C 47PF J C244 CK73GB1C104K CHIP C 0 10UF K C245 CK73GB1H102K CHIP C 1000PF K C247 CK73GB1H102K CHIP C 1000PF K C248 CK73GB1H103K CHIP C 0 010UF K C249 C92 0610 05 CHIP ELE 47UF 16WV C250 CC73GCH1H101J CHIP C 100PF J C251 CK73GB1C104K CHIP C 0 10UF K C252 CK73GB1H102K CHIP C 1000PF K C253 CK73GB1H471K CHIP C 470PF K C254 CK73GB1H102K CHIP C 1000PF K C255 CC73GCH1H030B CHIP C 3 0PF B C256 CK73GB1H102K CHIP C 1000PF K C257 CK73GB1C104K CHIP C 0 10UF K C258 CC73GCH1H010B CHIP C 1 0PF B C259 CC73GCH1H220J CHIP C 22PF J C270 CC73GCH1H470J CHIP C 47PF J C301 C92 0606 05 CHIP TAN 4 7UF 10WV C302 CK73GB1H472K CHIP C 4700PF K C303 CK73GB1H103K CHIP C 0 010UF K C304 CC73GCH1H060D CHIP C 6 0PF D C305 CC73GCH1H050C CHIP C 5 0PF C C307 CK73GB1C104K CHIP C 0 10UF K C308 CK73GB1H471K CHIP C 470PF K C309 CK73GB1C473K CHIP C 0 047UF K C310 CC73GCH1H470J CHIP C 47PF J C311 CK73GB1H471K CHIP C 470PF K C312 CK73GB1H103K CHIP C 0 010UF K C313 CK73GB1C473K CHIP C 0 047UF K C314 CK73GB1H102K CHIP C 1000PF K C315 C92 0002 05 CHIP TAN 0 22UF 35WV C316 C92 0565 05 CHIP TAN 6 8UF 10WV C317 CC73GCH1H050C CHIP C 5 0PF C C318 C92 0002 05 CHIP TAN 0 22UF 35WV C319 CC73GCH1H030B CHIP C 3 0PF B C320
64. CHIP R 390 J 1 10W R42 RK73FB2A471J CHIP R 470 J 1 10W R43 R92 1252 05 CHIP R 0 OHM J 1 16W VR1 2 3B R31 0629 05 VARIABLE RESISTOR S1 12 S70 0439 15 TACT SWITCH D1 LFB01 DIODE D2 MA2S111 DIODE D3 23 DA221 DIODE IC1 2 TC4S81F MOS IC IC3 L78LR05B FA MOS IC IC4 30622M8759GP MICROCONTROLLER IC IC5 AT29C020 90TI ROM IC Q1 2SA1162 Y TRANSISTOR Q2 4 DTC143EKA DIGITAL TRANSISTOR Q6 7 DTC143EKA DIGITAL TRANSISTOR Q9 10 DTC143EKA DIGITAL TRANSISTOR S13 3A W02 1978 05 ENCODER C1 C92 0606 05 CHIP TAN 4 7UF 10WV C2 CK73GB1H472K CHIP C 4700PF K C3 CK73GB1H103K CHIP C 0 010UF K C4 CC73GCH1H060D CHIP C 6 0PF D C5 CC73GCH1H050C CHIP C 5 0PF C C6 7 CK73GB1C104K CHIP C 0 10UF K C8 CK73GB1H471K CHIP C 470PF K C9 CC73GCH1H470J CHIP C 47PF J C10 CK73GB1H471K CHIP C 470PF K C11 CK73GB1C473K CHIP C 0 047UF K C12 C92 0002 05 CHIP TAN 0 22UF 35WV C13 CK73GB1H103K CHIP C 0 010UF K C14 CK73GB1H102K CHIP C 1000PF K C15 C92 0695 05 CHIP TAN 10UF 10WV C17 C92 0001 05 CHIP TAN 0 1UF 35WV C19 C92 0606 05 CHIP TAN 4 7UF 10WV C21 CC73GCH1H101J CHIP C 100PF J C22 CK73GB1H102K CHIP C 1000PF K C23 24 CK73GB1H103K CHIP C 0 010UF K C25 C92 0593 05 CHIP ELE 33UF 10WV C26 29 CK73GB1H102K CHIP C 1000PF K C31 CC73GCH1H180J CHIP C 18PF J C32 CC73GCH1H040C CHIP C 4 0PF C C34 CC73GCH1H120J CHIP C 12PF J C35 CC73GCH1H050C C
65. CK73GB1E123K CHIP C 0 012UF K C817 CK73GB1H103K CHIP C 0 010UF K C819 C92 0606 05 CHIP TAN 4 7UF 10WV C820 CK73GB1E223K CHIP C 0 022UF K C821 CK73GB1H682K CHIP C 6800PF K C822 CK73GB1E223K CHIP C 0 022UF K C823 CK73GB1H102K CHIP C 1000PF K C824 CC73GCH1H300J CHIP C 30PF J C825 CK73GB1C104K CHIP C 0 10UF K C826 CK73GB1H103K CHIP C 0 010UF K C827 CK73GB1C104K CHIP C 0 10UF K C828 CK73GB1H332K CHIP C 3300PF K C829 CK73GB1H561K CHIP C 560PF K C830 CK73GB1C104K CHIP C 0 10UF K C831 CK73GB1H332K CHIP C 3300PF K C832 CK73GB1H561K CHIP C 560PF K C833 CK73GB1H102K CHIP C 1000PF K C834 C92 0514 05 CHIP TAN 2 2UF 10WV C835 836 CK73FB1C105K CHIP C 1 0UF K C837 CK73GB1H471K CHIP C 470PF K C840 CK73GB1H103K CHIP C 0 010UF K C841 C92 0567 05 CHIP TAN 68UF 6 3WV C842 CK73FB1C105K CHIP C 1 0UF K C843 844 CK73GB1E183K CHIP C 0 018UF K C845 CK73GB1H103K CHIP C 0 010UF K C846 CK73GB1C104K CHIP C 0 10UF K C847 848 CK73GB1H103K CHIP C 0 010UF K C849 CK73GB1C104K CHIP C 0 10UF K C850 CE04EW1H470M ELECTRO 47UF 50WV C851 C92 0610 05 CHIP ELE 47UF 16WV C852 CE04EW1C471M ELECTRO 470UF 16WV C853 CK73GB1C104K CHIP C 0 10UF K C854 CE04EW1C471M ELECTRO 470UF 16WV C855 CK73GB1C104K CHIP C 0 10UF K C856 857 C92 0610 05 CHIP ELE 47UF 16WV C858 CE04EW1H470M ELECTRO 47UF 50WV C859 CK73GB1H103K CHIP C 0 010UF K C860 CC73GCH1
66. COIL L504 L40 3963 92 SMALL FIXED INDUCTOR 3 9NH L505 L40 1563 92 SMALL FIXED INDUCTOR 1 5NH L508 L79 1526 05 FILTER MODULE L509 L40 3975 92 SMALL FIXED INDUCTOR 39NH L510 L40 1275 92 SMALL FIXED INDUCTOR 12NH L511 L40 8275 92 SMALL FIXED INDUCTOR 82NH L512 L40 4763 92 SMALL FIXED INDUCTOR 4 7NH L513 L40 2775 92 SMALL FIXED INDUCTOR 27NH L514 L40 2285 92 SMALL FIXED INDUCTOR 220NH L515 L40 1075 92 SMALL FIXED INDUCTOR 10NH L516 L40 1085 92 SMALL FIXED INDUCTOR 100NH L517 L79 1575 05 FILTER MODULE L518 519 L40 1875 92 SMALL FIXED INDUCTOR 18NH L520 L40 2785 92 SMALL FIXED INDUCTOR 270NH L521 L40 1275 92 SMALL FIXED INDUCTOR 12NH L522 523 L40 6875 34 SMALL FIXED INDUCTOR 68NH L524 L40 1085 92 SMALL FIXED INDUCTOR 100NH L525 L40 1575 92 SMALL FIXED INDUCTOR 15NH L526 L40 1085 92 SMALL FIXED INDUCTOR 100NH L527 528 L40 5675 92 SMALL FIXED INDUCTOR 56NH L529 530 L40 3975 92 SMALL FIXED INDUCTOR 39NH L531 532 L40 1075 92 SMALL FIXED INDUCTOR 10NH L602 603 L92 0131 05 CHIP FERRITE X1 L77 1831 05 CRYSTAL RESONATOR 12 8MHZ X300 L77 1831 05 CRYSTAL RESONATOR 12 8MHZ X400 L77 1478 05 CRYSTAL RESONATOR 45 504711M X600 L77 1814 05 CRYSTAL RESONATOR 11 0592MHZ X700 L78 0459 05 RESONATOR 4 19MHZ XF100 L71 0491 15 MCF 38 85MHZ XF400 L71 0409 15 MCF 45 050M R1 RK73GB1J224J CHIP R 220K J 1 16W R2 RK73GB1J473J CHIP R 47K J 1 16W R3 RK73GB1J471J CHIP R 47
67. CSS DCS filter IC702 Cross point switch IC703 Buffer IC800 Comparator IC801 MIC amp IC802 AF amp IC803 AF select switch IC804 Electronic control IC805 Buffer amp APC BPF IC806 Audio amp IC807 AF switch IC808 Change switch SP1 SP2 IC900 Expansion port IC901 Expansion port IC903 8V AVR 8C IC904 AVR Q1 Charge pump VHF Q2 Charge pump VHF Q3 PLL comparison input amplifier VHF Q4 Ripple filter VHF Q6 VCO output amplifier VHF Q7 LO doubling circuit VHF Q8 Drive amplifier VHF Q9 Drive amplifier VHF Q10 Switch Q11 Switch Q102 Doubling circuit VHF2nd LO doubling circuit Q103 Power switch R5V Q104 Power switch R5AM Q105 IF amp VHF Q106 IF amp VHF Q107 IF amp VHF Q108 AF amp VHF Q110 AF amp VHF Q111 AGC amp VHF Q112 IF amp VHF Q113 AGC Q200 1st Mixer VHF Q201 1st Mixer VHF Q202 RF amp VHF Q203 RF amp VHF Q204 Change switch VHF Q205 RF amp VHF Q207 AGC control VHF Q208 APC control VHF UHF Q209 APC control VHF UHF Q210 RF amp VHF Q300 Charge pump UHF Q301 Charge pump UHF Q302 PLL comparison input amplifier UHF Q303 Ripple filter UHF Q304 VCO output amplifier UHF Q305 Doubling circuit UHF LO Q306 Power switch UHF Prescaler Q307 Drive amplifier UHF Q308 LO amp UHF Q309 Drive amplifier UHF Q310 Drive amplifier UHF Q402 AF
68. D11 8K D12 8K D13 8K D14 7I D15 7G D16 7G D17 7G D18 7H D19 7G D20 7H D21 8P D22 8P D23 8P D24 6Q D25 5Q D26 5F D27 6F D28 8J D29 8L D30 8O PANEL UNIT Foil side 2SA1162 E C B DTC143EKA IN GND OUT L78LR05B FA 1 2 4 5 3 DA221 1 3 2 50 51 75 76 100 1 25 26 30622M8759GP AT29C020 90TI TC4SB1F 17 16 1 32 2 3 4 5 1 Component side Foil side Layer 1 Layer 2 TM V708A PC BOARD C14 IC4 1 25 75 51 26 50 100 76 L5 C5 C1 IC3 1 2 4 5 3 IC2 1 3 5 4 C3 IC1 1 3 5 4 C2 L3 C4 C7 C8 C6 L1 L2 L4 L6 R5 R6 Q1 R3 D2 L7 C12 C11 R22 R21 R43 C9 C10 R15 R4 R2 R20 R18 R19 R17 D1 IC5 1 16 32 17 C15 C16 CN3 CN1 1 20 PB PB VL VL VDD RES CS1 CS2 GND AO WR RD D0 D1 D2 D3 D4 D5 D6 D7 CN2 CP1 CP10 CP11 CP12 CP13 CP14 CP15 CP2 CP3 CP4 CP5 CP6 CP7 CP8 CP9 C13 C23 C25 C24 L9 Q2 Q3 Q4 Q6 Q7 Q9 X1 Q10 R27 R28 R29 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 D21 D22 D23 D3 D4 D5 D6 D7 D8 D9 C17 C18 C19 C20 C21 C22 J1 TXD RXD GND PB R25 R30 R31 R32
69. For fixed stations OFF DC power supply POWER switch Measuring Equipment for Adjustment 1 Digital voltmeter D V M Input impedance High 2 RF valve voltmeter RF V M Input impedance 1M or more 2 pF or less Voltage range Full scale 10mV to 300V Measurable frequency range up to 450MHz 3 Frequency counter f counter Input sensitivity About 50mV Measurable frequency 450MHz or more 4 DC power supply Voltage Variable in the range 10 to 17V Current 13A or more 5 Power meter Measurement power 60W 30W 10W Impedance 50 Measurable frequency 450MHz 6 AF valve voltmeter AF V M Input impedance 1M or more Voltage range Full scale 1mV to 30V Measurable frequency range 50Hz to 10kHz 7 AF generator AG Output frequency 100Hz to 10kHz Output voltage 0 5mV to 1V 8 Line detector Measurable frequency 450MHz 9 Spectrum analyzer Measurable frequency 450MHz 10 Directional coupler 11 Oscilloscope High sensitivity with horizontal input terminal 12 Standard signal generator SSG The standard signal generator must be able to generate the 1GHz band frequencies and vary the amplitude and frequency Output 133dBm to greater than 13dBm 13 Dummy load for AF 8 about 5W 14 Noise generator The noise generator must be able to generate noise similar to ignition noise containing high frequency components of 450MHz or more 15 Sweep generator The sweep generator must be able to s
70. GB1H471K CHIP C 470PF K C539 544 CK73GB1H102K CHIP C 1000PF K C545 CK73GB1H471K CHIP C 470PF K C546 CC73GCH1H150J CHIP C 15PF J C548 CC73GCH1H020B CHIP C 2 0PF B C549 CC73GCH1H070D CHIP C 7 0PF D C550 551 CK73GB1H471K CHIP C 470PF K C552 CC73GCH1H470J CHIP C 47PF J C553 CK73GB1H471K CHIP C 470PF K C554 CC73GCH1H150J CHIP C 15PF J C555 CC73GCH1H470J CHIP C 47PF J C557 CC73GCH1H390J CHIP C 39PF J C558 CK73GB1H471K CHIP C 470PF K C559 CC73GCH1H060D CHIP C 6 0PF D C560 CC73GCH1H070D CHIP C 7 0PF D C561 562 CK73GB1H102K CHIP C 1000PF K C563 CC73GCH1H070D CHIP C 7 0PF D C564 CC73GCH1H100D CHIP C 10PF D C565 CC73GCH1H101J CHIP C 100PF J C567 CC73GCH1H020B CHIP C 2 0PF B C568 CC73GCH1H101J CHIP C 100PF J C569 CK73GB1H471K CHIP C 470PF K C570 CC73GCH1H020B CHIP C 2 0PF B C612 613 CK73GB1C104K CHIP C 0 10UF K C614 CK73GB1H471K CHIP C 470PF K C616 CK73GB1H102K CHIP C 1000PF K C617 C92 0756 05 CHIP ELE 330UF 6 3WV C618 CK73GB1H103K CHIP C 0 010UF K C619 CK73GB1H102K CHIP C 1000PF K C620 CK73GB1H103K CHIP C 0 010UF K C621 622 CK73GB1H102K CHIP C 1000PF K C624 625 CC73GCH1H220J CHIP C 22PF J C626 CK73FB1C105K CHIP C 1 0UF K C627 CK73GB1H103K CHIP C 0 010UF K C628 CK73GB1H471K CHIP C 470PF K C629 CC73GCH1H101J CHIP C 100PF J C631 632 CK73FB1C105K CHIP C 1 0UF K C700 C92 0514 05 CHIP TAN 2 2UF
71. H101J CHIP C 100PF J C861 C92 0558 05 CHIP ELE 100UF 16WV C862 863 CK73GB1H102K CHIP C 1000PF K C864 865 CK73GB1H103K CHIP C 0 010UF K C869 CK73GB1H102K CHIP C 1000PF K C870 CC73GCH1H390J CHIP C 39PF J C871 CK73GB1E183K CHIP C 0 018UF K C872 CK73GB1C473K CHIP C 0 047UF K C900 901 CK73GB1H102K CHIP C 1000PF K C902 C92 0558 05 CHIP ELE 100UF 16WV C903 CK73GB1H103K CHIP C 0 010UF K C904 CK73GB1H102K CHIP C 1000PF K C905 C92 0610 05 CHIP ELE 47UF 16WV C906 CK73GB1C104K CHIP C 0 10UF K C907 908 C92 0610 05 CHIP ELE 47UF 16WV C909 910 CK73GB1H103K CHIP C 0 010UF K C911 CK73GB1H102K CHIP C 1000PF K C912 CK73GB1C104K CHIP C 0 10UF K C913 CK73GB1H471K CHIP C 470PF K C914 C92 0610 05 CHIP ELE 47UF 16WV C916 C92 0558 05 CHIP ELE 100UF 16WV C917 CK73GB1H103K CHIP C 0 010UF K C919 CK73GB1H103K CHIP C 0 010UF K C920 CC73GCH1H101J CHIP C 100PF J C921 C92 0558 05 CHIP ELE 100UF 16WV C922 CK73GB1H103K CHIP C 0 010UF K C923 CK73GB1C104K CHIP C 0 10UF K C924 925 CK73FB1C105K CHIP C 1 0UF K C926 927 CK73GB1H103K CHIP C 0 010UF K C929 CK73GB1H102K CHIP C 1000PF K C931 CK73GB1H102K CHIP C 1000PF K C932 933 C90 4075 05 ALUMINIUM ELECTRO 1000UF 25WV TC1 C05 0383 05 CERAMIC TRIMMER CAPACITOR 6PF TC300 C05 0383 05 CERAMIC TRIMMER CAPACITOR 6PF CN1 E23 0486 05 TERMINAL CN601 E40 5618 05 FLAT CABLE CONNECTOR CN602 E40 5823 05 F
72. HIP C 5 0PF C C36 CK73GB1H102K CHIP C 1000PF K C37 CK73GB1H471K CHIP C 470PF K C38 CC73GCH1H010B CHIP C 1 0PF B C39 41 CK73GB1H102K CHIP C 1000PF K C42 CC73GCH1H101J CHIP C 100PF J C43 46 CK73GB1H102K CHIP C 1000PF K C47 CC73GCH1H390J CHIP C 39PF J C48 50 CK73GB1H102K CHIP C 1000PF K C51 CK73FB1C105K CHIP C 1 0UF K C52 CK73GB1H102K CHIP C 1000PF K C53 CC73GCH1H270J CHIP C 27PF J C54 CK73GB1H102K CHIP C 1000PF K C55 C92 0523 05 CHIP ELE 10UF 16WV C57 CK73GB1H102K CHIP C 1000PF K C58 CC73GCH1H101J CHIP C 100PF J C59 CK73GB1H103K CHIP C 0 010UF K C60 CK73GB1H102K CHIP C 1000PF K C61 CK73GB1H103K CHIP C 0 010UF K C62 C92 0523 05 CHIP ELE 10UF 16WV C65 66 CK73GB1H102K CHIP C 1000PF K C67 CK73GB1H103K CHIP C 0 010UF K C68 CK73GB1H471K CHIP C 470PF K C69 C93 0552 05 CHIP C 2 0PF C C70 71 CK73GB1H102K CHIP C 1000PF K C72 CC73GCH1H270J CHIP C 27PF J C73 C93 0603 05 CHIP C 1000PF K C74 C93 0566 05 CHIP C 33PF J C75 CC73GCH1H0R5B CHIP C 0 5PF B C76 CC73GCH1H010B CHIP C 1 0PF B C77 C93 0666 05 CHIP C 24PF 500WV C79 CK73GB1H102K CHIP C 1000PF K C80 C93 0563 05 CHIP C 18PF J C81 CC73GCH1H0R5B CHIP C 0 5PF B C82 CC73GCH1H010B CHIP C 1 0PF B C83 CK73GB1C104K CHIP C 0 10UF K C86 CK73GB1H102K CHIP C 1000PF K C92 C93 0563 05 CHIP C 18PF J C93 CC73GCH1H101J CHIP C 100PF J C100 CK73GB1C
73. HIP R 1 0K J 1 16W R253 RK73GB1J683J CHIP R 68K J 1 16W R254 256 RK73GB1J103J CHIP R 10K J 1 16W R257 258 RK73GB1J473J CHIP R 47K J 1 16W R259 R92 1252 05 CHIP R 0 OHM J 1 16W R260 RK73GB1J470J CHIP R 47 J 1 16W R261 RK73GB1J184J CHIP R 180K J 1 16W R262 263 RK73GB1J103J CHIP R 10K J 1 16W R264 RK73GB1J222J CHIP R 2 2K J 1 16W R265 RK73GB1J473J CHIP R 47K J 1 16W R266 RK73GB1J222J CHIP R 2 2K J 1 16W R267 RK73GB1J104J CHIP R 100K J 1 16W R268 270 R92 1252 05 CHIP R 0 OHM J 1 16W R271 RK73GB1J271J CHIP R 270 J 1 16W R300 RK73GB1J104J CHIP R 100K J 1 16W R301 RK73GB1J333J CHIP R 33K J 1 16W R302 RK73GB1J393J CHIP R 39K J 1 16W R303 304 RK73GB1J473J CHIP R 47K J 1 16W R305 RK73GB1J224J CHIP R 220K J 1 16W R306 RK73GB1J123J CHIP R 12K J 1 16W R307 RK73GB1J473J CHIP R 47K J 1 16W R310 RK73GB1J220J CHIP R 22 J 1 16W R311 RK73GB1J473J CHIP R 47K J 1 16W R312 RK73GB1J471J CHIP R 470 J 1 16W R313 315 RK73GB1J102J CHIP R 1 0K J 1 16W R316 318 RK73GB1J103J CHIP R 10K J 1 16W R319 RK73GB1J472J CHIP R 4 7K J 1 16W R320 RK73GB1J101J CHIP R 100 J 1 16W R321 322 RK73GB1J152J CHIP R 1 5K J 1 16W R323 RK73GB1J391J CHIP R 390 J 1 16W R324 RK73GB1J102J CHIP R 1 0K J 1 16W R325 RK73GB1J474J CHIP R 470K J 1 16W R326 RK73GB1J102J CHIP R 1 0K J 1 16W R327 RK73GB1J104J CHIP R 100K J 1 16W R329 RK73GB1J332J CHIP R 3 3K J
74. K C367 CK73GB1C104K CHIP C 0 10UF K C368 C93 0558 05 CHIP C 8 0PF D C369 CK73GB1H102K CHIP C 1000PF K C372 CK73GB1H102K CHIP C 1000PF K C373 C93 0560 05 CHIP C 10PF D C376 CC73GCH1H010B CHIP C 1 0PF B C377 CC73GCH1H020B CHIP C 2 0PF B TM V708A PARTS LIST Ref No Parts No Description Address New parts Ref No Parts No Description Address New parts Destination Destination 23 TX RX UNIT X57 5860 12 C378 CC73GCH1H0R5B CHIP C 0 5PF B C379 CC73GCH1H020B CHIP C 2 0PF B C380 C93 0551 05 CHIP C 1 5PF C C382 CC73FCH1HR75B CHIP C 0 75PF B C383 CC73GCH1HR75B CHIP C 0 75PF B C384 C93 0555 05 CHIP C 5 0PF C C385 386 C93 0557 05 CHIP C 7 0PF D C393 CK73GB1H471K CHIP C 470PF K C394 CK73GB1C104K CHIP C 0 10UF K C395 CC73GCH1H020B CHIP C 2 0PF B C397 CC73GCH1H050C CHIP C 5 0PF C C399 C92 0606 05 CHIP TAN 4 7UF 10WV C402 403 CK73GB1C104K CHIP C 0 10UF K C404 CK73GB1H103K CHIP C 0 010UF K C405 CK73GB1C104K CHIP C 0 10UF K C406 CC73GCH1H180J CHIP C 18PF J C407 408 CC73GCH1H271J CHIP C 270PF J C409 CC73GCH1H270J CHIP C 27PF J C410 CC73GCH1H101J CHIP C 100PF J C411 CK73GB1C473K CHIP C 0 047UF K C412 CC73GCH1H270J CHIP C 27PF J C413 C92 0610 05 CHIP ELE 47UF 16WV C414 CK73GB1H472K CHIP C 4700PF K C415 CK73GB1C104K CHIP C 0 10UF K C416 CK73FB1C105K CHIP C 1 0UF K C418 CK73GB1C104K CHIP C 0 10UF
75. K C420 421 CK73GB1E123K CHIP C 0 012UF K C422 CK73GB1C104K CHIP C 0 10UF K C423 CK73GB1C393K CHIP C 0 039UF K C424 CC73GCH1H150J CHIP C 15PF J C425 CK73GB1H103K CHIP C 0 010UF K C427 CK73GB1H103K CHIP C 0 010UF K C428 CK73GB1H102K CHIP C 1000PF K C429 CC73GCH1H060D CHIP C 6 0PF D C430 C92 0606 05 CHIP TAN 4 7UF 10WV C433 CK73GB1H102K CHIP C 1000PF K C434 CK73GB1H332K CHIP C 3300PF K C436 CK73GB1C104K CHIP C 0 10UF K C500 CC73GCH1H040C CHIP C 4 0PF C C501 CK73GB1H102K CHIP C 1000PF K C503 504 CK73GB1H102K CHIP C 1000PF K C505 CC73GCH1H101J CHIP C 100PF J C507 508 CK73GB1H103K CHIP C 0 010UF K C509 CC73GCH1H101J CHIP C 100PF J C510 511 CC73GCH1H680J CHIP C 68PF J C512 CC73GCH1H010B CHIP C 1 0PF B C513 CC73GCH1H101J CHIP C 100PF J C514 515 CK73GB1H103K CHIP C 0 010UF K C517 CK73GB1H471K CHIP C 470PF K C518 519 CC73GCH1H030B CHIP C 3 0PF B C520 CK73GB1H471K CHIP C 470PF K C521 CC73GCH1H040C CHIP C 4 0PF C C523 524 CK73GB1H471K CHIP C 470PF K C525 CC73GCH1H030B CHIP C 3 0PF B C526 CC73GCH1H100D CHIP C 10PF D C527 528 CK73GB1H471K CHIP C 470PF K C529 CC73GCH1H050C CHIP C 5 0PF C C531 CK73GB1H471K CHIP C 470PF K C532 CC73GCH1H040C CHIP C 4 0PF C C533 CK73GB1H471K CHIP C 470PF K C534 CC73GCH1H050C CHIP C 5 0PF C C535 CC73GCH1H030B CHIP C 3 0PF B C536 537 CK73GB1H102K CHIP C 1000PF K C538 CK73
76. Kong KENWOOD ELECTRONICS SINGAPORE PTE LTD 1 Ang Mo Kio Street 63 Singapore 569110
77. LAT CABLE CONNECTOR CN800 E40 3237 05 PIN ASSY CN900 E40 3237 05 PIN ASSY J602 E58 0410 05 MODULAR JACK J700 E56 0405 05 DIN SOCKET J800 E58 0469 05 MODULAR JACK J801 802 E11 0448 05 3 5D PHONE JACK 3P W602 E37 0697 05 PROCESSED LEAD WIRE F800 F53 0108 05 FUSE 1 8A F900 F53 0128 05 FUSE 0 5A F901 902 F53 0108 05 FUSE 1 8A J30 0545 05 SPACER CF101 L72 0979 05 CERAMIC FILTER CF401 L72 0981 05 CERAMIC FILTER L1 L40 2275 92 SMALL FIXED INDUCTOR 22NH L3 L40 1585 92 SMALL FIXED INDUCTOR 150NH L5 L40 2275 92 SMALL FIXED INDUCTOR 22NH L6 L40 3375 92 SMALL FIXED INDUCTOR 33NH L7 L40 1085 34 SMALL FIXED INDUCTOR 100NH L8 L34 1239 05 AIR CORE COIL L9 L34 0894 05 AIR CORE COIL L10 L34 0742 05 AIR CORE COIL L11 L34 1239 05 AIR CORE COIL L12 L34 0742 05 AIR CORE COIL L14 L34 0742 05 AIR CORE COIL L15 L34 4520 05 AIR CORE COIL L16 L40 2275 92 SMALL FIXED INDUCTOR 22NH L100 101 L40 5685 34 SMALL FIXED INDUCTOR 560NH L102 L34 4459 05 COIL L200 L34 4595 05 COIL L201 L39 1421 05 TOROIDAL COIL L202 L40 1585 92 SMALL FIXED INDUCTOR 150NH L203 L40 4775 92 SMALL FIXED INDUCTOR 47NH L204 L34 4506 15 COIL TM V708A PARTS LIST Ref No Parts No Description Address New parts Ref No Parts No Description Address New parts Destination Destination 25 TX RX UNIT X57 5860 12 L205 206 L40 5675 54 SMALL FIXED INDUCTOR 56NH L207 L34 4506 15 COIL L209
78. ONT PANEL 40 3B G10 1257 04 FIBROUS SHEET DISPLAY 42 1B G11 0778 04 RUBBER CUSHION SP 43 3B G11 2600 14 SHEET DISPLAY 44 3A G11 2611 04 SHEET DISPLAY 45 3A G11 2612 14 SHEET DISPLAY 46 3A G13 1753 04 CUSHION DISPLAY 48 1C G13 1757 04 CUSHION BRACKET 49 3A G13 1784 04 CUSHION PANEL PCB 50 2A G13 1792 04 CUSHION 51 2C H02 0614 03 INNER CARTON CASE 52 2D H12 3074 12 PACKING FIXTURE MAIN UNIT 55 1C H12 3075 03 PACKING FIXTURE DISPLAY 56 2D H13 1106 24 CARTON BOARD 57 2C H21 0766 04 PROTECTION SHEET 58 2C H25 0085 04 PROTECTION BAG 100 200 0 07 59 1C H25 0103 04 PROTECTION BAG 125 250 0 07 62 2D H25 0720 04 PROTECTION BAG 200X350 63 3C H52 2084 02 ITEM CARTON CASE 64 1D J02 0488 04 FOOT ACCESSORY 65 1D J19 1526 04 HOLDER ACCESSORY 66 2D J29 0628 23 BRACKET MAIN UNIT ACCESSORY 69 1C J29 0663 13 BRACKET DISPLAY ACCESSORY 70 2C J29 0664 13 BRACKET DISPLAY ACCESSORY 71 3B J32 0926 04 HEXAGON BOSS PANEL UNIT X54 3290 00 PARTS LIST Ref No Parts No Description Address New parts Ref No Parts No Description Address New parts Destination Destination PANEL UNIT X54 3290 00 21 TM V708A TX RX UNIT X57 5860 12 R27 29 RK73GB1J102J CHIP R 1 0K J 1 16W R30 32 RK73GB1J473J CHIP R 47K J 1 16W R33 RK73GB1J102J CHIP R 1 0K J 1 16W R34 38 RK73GB1J473J CHIP R 47K J 1 16W R39 41 RK73FB2A391J
79. Q210 2SC5066 O TRANSISTOR Q300 2SA1774 S TRANSISTOR Q301 2SC4617 R TRANSISTOR Q302 2SC5108 Y TRANSISTOR Q303 2SC4617 R TRANSISTOR Q304 2SC5108 Y TRANSISTOR Q305 2SC5066 O TRANSISTOR Q306 UMC4N TRANSISTOR Q307 2SC4093 R27 TRANSISTOR Q308 2SC5108 Y TRANSISTOR Q309 2SC3357 TRANSISTOR Q310 2SC2954 TRANSISTOR Q402 2SC4617 R TRANSISTOR Q404 UMC4N TRANSISTOR Q405 2SC4617 R TRANSISTOR Q406 2SC5108 Y TRANSISTOR Q500 2SC4997 TRANSISTOR Q501 502 2SK302 GR FET Q503 3SK239A FET Q505 2SK1875 V FET Q506 2SC5108 Y TRANSISTOR Q507 508 3SK239A FET Q509 2SC5066 O TRANSISTOR Q601 2SC4617 R TRANSISTOR Q603 DTA144EE DIGITAL TRANSISTOR Q604 2SK1824 FET Q700 701 2SC4617 R TRANSISTOR Q702 2SA1774 S TRANSISTOR Q800 2SC4919 TRANSISTOR Q801 802 2SC4617 S TRANSISTOR Q803 805 2SK1824 FET Q807 2SK1824 FET Q900 DTD143EK DIGITAL TRANSISTOR Q903 904 2SB1132 Q R TRANSISTOR Q905 909 FMA5 TRANSISTOR Q910 2SC4617 R TRANSISTOR Q911 2SB1132 Q R TRANSISTOR Q912 2SB1386 R TRANSISTOR Q913 914 DTC114EE DIGITAL TRANSISTOR TH1 157 153 65001 THERMISTOR 31 TM V708A Parts with the exploded numbers larger than 700 are not supplied Bx2 Bx2 Bx2 A B C D E F G N14 0569 04 N33 2606 45 N67 3008 46 N80 2010 45 N80 2610 45 N83 2608 46 N87 2606 46 S13 VR1 VR2 SP 1 26 33 31 33 22 79 30 24
80. REQ 146 050MHz SSG OFF Set to the point where noise will be erased by turning the squelch knob 8 SSG 0 178 V 122dBm 9 Squelch knob clockwise MAX 10 Band A Sub band FREQ 444 150MHz Set to the point where noise will be erased by turning the squelch knob 11 SSG 0 199 V 121dBm 12 Squelch knob clockwise MAX Switch to adjustment mode and carry out the operations for Item B Band A 1 FREQ 146 350MHz SSG DEV 3kHz MOD 1kHz 1S1 SSG 0 28 V 118dBm 2S7 SSG 3 54 V 96dBm 2 FREQ 127 100MHz SSG DEV 3kHz MOD 1kHz 1S1 SSG 0 28 V 118dBm 2S7 SSG 3 54 V 96dBm 3 FREQ 223 100MHz SSG DEV 3kHz MOD 1kHz 1S1 SSG 0 707 V 110dBm 2S7 SSG 7 94 V 89dBm Squelch open BUSY lights on AF output disappear BUSY lights off SQL knob position 8 00 11 00 BUSY lights off Squelch open BUSY lights on AF output disappear BUSY lights off SQL knob position 8 00 11 00 BUSY lights off Squelch open BUSY lights on AF output disappear BUSY lights off One Segment in S meter lights All segments in S meter light One Segment in S meter lights All segments in S meter light One Segment in S meter lights All segments in S meter light SSG Rear ANT Oscilloscope panel EXT SP SSG Rear ANT panel Display Check Check Check Display S1 key Write S7 key S1 key S7 key S1 key S7 key Item Condition Measurement
81. REQ 438 100MHz FREQ 449 875MHz SSG 0 178 V 122dBm AF output 0 63V 8 3 Band A Sub band FREQ 441 150MHz SSG 0 28 V 118dBm AF output 0 63V 8 4 Band B Sub band FREQ 146 050MHz SSG 0 398 V 115dBm AF output 0 63V 8 Switch to adjustment mode and carry out the operations for Item A Band A 1 FREQ 146 350MHz SSG 0 07 V 130dBm SSG DEV 3kHz MOD 1kHz 2 FREQ 127 100MHz SSG 0 07 V 130dBm SSG DEV 3kHz MOD 1kHz 3 FREQ 223 100MHz SSG 0 158 V 123dBm SSG DEV 3kHz MOD 1kHz SSG Rear ANT Oscilloscope panel EXT SP AF V M Distortion meter SSG Rear ANT Distortion panel EXT SP meter Oscilloscope AF V M SSG Rear ANT panel EXT SP Check Check Display SET key Write Item Condition Measurement Receiver section Adjustment Specifications Remarks Test Unit Terminal equipment Unit Parts Method SSG Rear ANT Oscilloscope panel EXT SP AF V M Distortion meter 1 AF distortion 1 Band A FREQ 146 250MHz SSG 0 178 V 122dBm AF output 0 63V 8 2 Band A FREQ 444 250MHz SSG 0 178 V 122dBm AF output 0 63V 8 TX RX L200 SINAD L102 MAX L500 SINAD L401 MAX adjust TM V708A 40 ADJUSTMENT Item Condition Measurement Receiver section Adjustment Specifications Remarks Test Unit Terminal equipment Unit Parts Method 4 FREQ 146 350MHz SSG 0 20 V 121dBm SSG MOD 60 1kHz 5 FREQ 127 100MHz SSG 0
82. S7 key Display S meter Check 6 S meter write 7 S meter check Measurement Receiver section Adjustment Specifications Remarks Test Unit Terminal equipment Unit Parts Method TM V708A 44 ADJUSTMENT Not Warm up the set 100Hz 5 0W 0 5W 12W 1W 48W or more 1 If MAX Power is 52W or more adjust TX power within 50W 1W 2 If MAX Power is between from 48W to 52W adjust TX power within MAX Power 2W 1W 44 60W 10 14W 3 10W 5 0W 0 5W 12W 1W 33W or more 1 If MAX Power is 37W or more adjust TX power within 35W 1W 2 If MAX Power is between from 33W to 37W adjust TX power within MAX Power 2W 1W 1 Transmission frequency adjust 2 1 POWER write or check Band A 2 2 POWER write or check Band B 1 Band A FREQ 146 000MHz Transmission 2 Band B FREQ 444 000MHz Transmission For 1 2 and 4 switch to adjustment mode and carry out the operations for Item C 1 POWER LOW FREQ 146 000MHz Transmission 2 POWER MID Transmission 3 POWER MAX Transmission 4 POWER HI Transmission 5 FREQ 144 000MHz FREQ 147 975MHz POWER HI Transmission 6 POWER MID Transmission 7 POWER LOW Transmission For 1 2 and 4 switch to adjustment mode and carry out the operations for Item C 1 POWER LOW FREQ 444 000MHz Transmission 2 POWER MID Transmission 3 POWER MAX Transmission 4 POWER HI FREQ 444
83. SCREW PANEL E 1B N80 2610 45 PAN HEAD TAPTITE SCREW FAN F 1B N83 2608 46 PAN HEAD TAPTITE SCREW ANT G 2B N87 2606 46 BRAZIER HEAD TAPTITE SCREW 76 1D N99 0382 05 SCREW SET MAIN UNIT ACCESSORY 77 2D N99 2014 05 SCREW SET DISPLAY ACCESSORY 78 1B T07 0368 05 SPEAKER 79 1B T42 0311 25 MOTOR 80 2C T91 0636 05 MICROPHONE ACCESSORY 81 2B 212 1021 05 INSULATING TUBE 7mm D24 30 B30 2215 05 LED C1 CK73GB1C104K CHIP C 0 10UF K C2 3 CC73GCH1H101J CHIP C 100PF J C4 C92 0512 05 CHIP TAN 1 0UF 16WV C5 CK73GB1C104K CHIP C 0 10UF K C6 C92 0698 05 CHIP ELE 47UF 16WV C7 8 CK73GB1H102K CHIP C 1000PF K C9 10 CC73GCH1H220J CHIP C 22PF J C11 CK73GB1H103K CHIP C 0 010UF K C12 CK73GB1H102K CHIP C 1000PF K C13 14 CK73GB1H472K CHIP C 4700PF K C15 CK73GB1H103K CHIP C 0 010UF K C16 CK73GB1H102K CHIP C 1000PF K C17 23 CK73GB1H103K CHIP C 0 010UF K C24 CK73FB1C105K CHIP C 1 0UF K C25 CK73GB1H472K CHIP C 4700PF K CN1 E40 5852 05 FLAT CABLE CONNECTOR CN2 3 E40 5392 05 PIN ASSY CN4 5 E40 5409 05 PIN ASSY J1 E58 0457 05 MODULAR JACK L1 7 L92 0140 05 CHIP FERRITE L9 L92 0140 05 CHIP FERRITE X1 L77 1814 05 CRYSTAL RESONATOR 11 0592MHZ CP1 15 R90 0741 05 MULTIPLE RESISTOR R2 RK73GB1J473J CHIP R 47K J 1 16W R3 RK73GB1J103J CHIP R 10K J 1 16W R4 RK73GB1J331J CHIP R 330 J 1 16W R5 6 RK73GB1J473J CHIP R 47K J 1 16W R8 R92 0670 05
84. TMFDT I DTMF DATA 75 DTMFDET I Data detection 76 VS3NAR O VS 3 NAR 77 VS3RST O VS 3 RESET 78 VS3CS O VS 3 Chip Select 79 VS3DT O VS 3 DATA 80 VS3CK O VS 3 CLK 81 VDD Positive power supply 82 83 NC O Not used 84 DA_EN O DAC Enable output M62364FP 85 NC 86 NC O Not used 87 BEEP O Beep sound output 88 NC 89 NC O Not used 90 E12 O 91 E96 O 92 I12 O 93 I96 O 94 VPP I Flash writing 10V application pin Normal L pulse 95 NC 96 E2SO I Data input line for EEPROM EEPROM SO pin 97 E2CS O EEPROM Chip Select L Enable 98 SU43 O UHF PLL speedup control output H ON 99 VPLLUL I V UNLOCK detection H Lock H 100 VPLLUL I U UNLOCK detection H Lock H Pin No Port Name I O Function Active Level TM V708A 17 COMPONENTS DESCRIPTION TX RX UNIT X57 5860 12 Ref No Application Function Operation Condition Compatibility IC1 PLL IC VHF PLL IC2 VCO VHF IC3 Power Module VHF IC4 Power Module UHF IC100 IF LC A band IC101 AF select VHF IC200 APC voltage comparison VHF IC300 Modulation signal amplification VHF IC301 PLL IC UHF PLL IC302 VCO UHF IC303 Prescaler UHF IC304 Speed up switch IC400 IF IC B band IC501 AF PA IC601 Reset IC602 EEPROM Setting memory IC603 AVR IC604 Control microcomputer IC700 DTMF decoder IC701 CT
85. W R829 RK73GB1J152J CHIP R 1 5K J 1 16W R830 RK73GB1J274J CHIP R 270K J 1 16W R831 RK73GB1J391J CHIP R 390 J 1 16W R832 RK73GB1J473J CHIP R 47K J 1 16W R834 RK73GB1J473J CHIP R 47K J 1 16W R835 RK73GB1J185J CHIP R 1 8M J 1 16W R836 RK73GB1J103J CHIP R 10K J 1 16W R837 RK73GB1J473J CHIP R 47K J 1 16W R839 RK73GB1J473J CHIP R 47K J 1 16W R840 RK73GB1J185J CHIP R 1 8M J 1 16W R841 RK73GB1J103J CHIP R 10K J 1 16W R842 R92 1252 05 CHIP R 0 OHM J 1 16W R843 RK73GB1J102J CHIP R 1 0K J 1 16W R846 RK73GB1J224J CHIP R 220K J 1 16W R849 850 RK73GB1J224J CHIP R 220K J 1 16W R851 853 RK73GB1J102J CHIP R 1 0K J 1 16W R854 RK73GB1J122J CHIP R 1 2K J 1 16W R855 RK73GB1J821J CHIP R 820 J 1 16W R856 RK73GB1J683J CHIP R 68K J 1 16W R857 858 RK73GB1J223J CHIP R 22K J 1 16W R859 RK73GB1J103J CHIP R 10K J 1 16W R860 RK73GB1J223J CHIP R 22K J 1 16W R861 RK73GB1J473J CHIP R 47K J 1 16W R862 863 RK73GB1J103J CHIP R 10K J 1 16W R864 865 RK73GB1J473J CHIP R 47K J 1 16W R866 R92 1252 05 CHIP R 0 OHM J 1 16W R867 868 RK73GB1J4R7J CHIP R 4 7 J 1 16W R869 R92 1252 05 CHIP R 0 OHM J 1 16W R870 RK73GB1J474J CHIP R 470K J 1 16W R871 RK73GB1J473J CHIP R 47K J 1 16W R872 RK73GB1J471J CHIP R 470 J 1 16W R873 RK73GB1J473J CHIP R 47K J 1 16W R874 R92 1252 05 CHIP R 0 OHM J 1 16W R875 RK73GB1J682J CHIP R 6 8K J 1 16W R876 877 RK73GB
86. X57 5860 12 C142 CK73FB1C105K CHIP C 1 0UF K C144 145 CK73GB1C104K CHIP C 0 10UF K C146 CK73GB1C393K CHIP C 0 039UF K C147 CK73GB1H103K CHIP C 0 010UF K C153 CC73GCH1H100D CHIP C 10PF D C154 CK73FB1C105K CHIP C 1 0UF K C164 C92 0606 05 CHIP TAN 4 7UF 10WV C169 CC73GCH1H180J CHIP C 18PF J C170 172 CK73GB1H102K CHIP C 1000PF K C174 CK73GB1C104K CHIP C 0 10UF K C175 CC73GCH1H030B CHIP C 3 0PF B C200 CK73GB1H103K CHIP C 0 010UF K C201 202 CC73GCH1H680J CHIP C 68PF J C203 204 CK73GB1H103K CHIP C 0 010UF K C206 209 CK73GB1H102K CHIP C 1000PF K C210 CK73GB1H471K CHIP C 470PF K C211 CK73GB1H102K CHIP C 1000PF K C212 213 CK73GB1H471K CHIP C 470PF K C216 CC73GCH1H2R5B CHIP C 2 5PF B C217 CK73GB1H471K CHIP C 470PF K C218 CK73GB1H102K CHIP C 1000PF K C219 CC73GCH1H040C CHIP C 4 0PF C C220 CC73GCH1H020B CHIP C 2 0PF B C221 CC73GCH1H030B CHIP C 3 0PF B C222 CC73GCH1H330J CHIP C 33PF J C223 CK73GB1H471K CHIP C 470PF K C225 CC73GCH1H070D CHIP C 7 0PF D C226 CK73GB1H471K CHIP C 470PF K C227 CC73GCH1H220J CHIP C 22PF J C228 CC73GCH1H030B CHIP C 3 0PF B C229 CC73GCH1H330J CHIP C 33PF J C230 CK73GB1H471K CHIP C 470PF K C231 CK73GB1H103K CHIP C 0 010UF K C232 CK73GB1H102K CHIP C 1000PF K C233 CC73GCH1H050C CHIP C 5 0PF C C234 235 CK73GB1H102K CHIP C 1000PF K C236 CK73GB1H471K CHIP C 470PF K C239 CC73G
87. al does not go above 4 Vp p and the frequency shift does not fluctuate extremely Pin Pin Specification No name 1 PKD bps switching 1200bps 9600bps Modulation input 40mVp p 2Vp p Frequency shift 3 0 5kHz 2 2 0 5kHz 4 PR9 Out level 500mVp p 10k Always output during reception 5 PR1 Output level 500mVp p 10k Not output when squelch off Table6 DATA terminal input output level Q802 2SC4617 S PRE EMPHASIS Q801 2SC4617 S ELECTRONIC VOLUME Q701 2SC4617 R Q700 2SC4617 R BUFFER BUFFER MICRO COMPUTER ANALOG SW IC803 AMP IC801 IC802 TA75SOIF RA RD VCO VCO PKD SQC PR1 PR9 PKS IC804 IC703 BUFFER MICRO COMPUTER TM V708A 13 CIRCUIT DESCRIPTION Dimmer level DIM 0 DIM 1 DIM 2 DIM 3 1 H L L L 2 L H L L 3 L L H L 4 L L L H OFF L L L L 7 2 Reception signals PR9 is the 9600bps data communications reception output It outputs the FM detection circuit output RD signals through a buffer amp Q700 These signals are always output whether the squelch is open or closed PR1 is the 1200bps data communications reception output It outputs the FM detection circuit output RA signals through a buffer amp Q701 Output is controlled with the cross point switch IC702 according to whether squelch is open or closed 7 3 Squelch signal output circuit The squelch circuits is input to the TNC to preven
88. amp UHF Q404 Power switch R5U Q405 AF amp Q406 IF amp Q500 IF amp Q501 1st Mixer UHF Q502 1st Mixer UHF Q503 Mixer Q505 RF amp UHF Q506 RF amp UHF Q507 RF amp UHF Q508 RF amp UHF Q509 RF amp UHF Q601 Reset switch Q603 Power switch SM5C Q604 System down detection Q700 AF amp PR9 Q701 AF amp PR1 Q702 Reset switch Q800 Microphone mute Q801 Pre emphasis Q802 Pre emphasis Q803 Microphone mute Q804 Mute Q805 Mute Q807 Mute Q900 Fan switch Q903 Power switch T8V Q904 Power switch T8U Ref No Application Function Operation Condition Compatibility TM V708A 18 Q905 Power switch R8V R8U Q906 Power switch RM43 RM80 Q907 Power switch RS14 RM30 Q908 Power switch R8UA RM22 Q909 Power switch RS43 RM14 Q910 AVR PB Q911 AVR PB Q912 Power switch SB Q913 Power switch PB Q914 Power switch SB D1 Reference oscillation A band circuit modulation D2 Reference oscillation A band circuit modulation D3 LD waveform rectification A band D4 Step down Charge pump D5 Quick charge A band VCO ripple filter D6 OR circuit RM14 RM22 D7 LO switch LO Doubling circuit switch D9 LO switch LO Doubling circuit switch D11 Signal switch VHF TX D12 Drive circuit bias D13 Drive circuit bias D14 ANT switch VHF TX D15 ANT switch VHF TX D16 ANT switch VHF TX D17
89. and J802 The AF signals can be output in various combinations matching the internal speakers When no external speaker is connected to J801 Pins 5 of the multiplexer IC807 IC808 go low the AF signals AO 0 and AO 1 are added and input to the power amp IC806 When an external speaker is connected to J801 Pins 5 of the multiplexer IC18 go high and AO 0 and AO 1 are input separately to the power amp 6 3 Microphone Key Input The microphone UP DOWN and function keys are connected to the microprocessor analog input The voltage when a key is ON operates the corresponding function Also the key input interrupt circuit is for switching the power ON OFF with the microphone When the DOWN MR and PF keys are pressed an interrupt is generated and the microprocessor is awoken from stop mode However with the TM V708A the power ON OFF switch function can be registered to the PF key on the microphone AO 1 AO 0 Internal speakers only Internal speaker 1 external speaker J802 external speaker 1 external speaker J801 Internal speaker external speaker 2 external speaker external speaker external speaker Table5 Speaker combination table TM V708A 12 CIRCUIT DESCRIPTION 7 Data Terminal and Peripheral Circuits J700 data terminal is the data communications terminal on the front It handles transmission control data input output and squelch signals There are two data communications modes 9600bps mode and 12
90. cts unwanted calls from other stations 6 The separate front panel can be mounted in a convenient different place from the main unit 7 Equipped with an easy to read large LCD with alphanumeric display capability List of Destination Accessories Unit for Model and Destination TM V708A 3 CIRCUIT DESCRIPTION 1 Frequency configuration The TM V708A has an individual VCO and PLL unit for both VHF and UHF bands Using these separate VCO and PLL circuit it can receive 2 separate bands at the same time Also you can perform the full duplex operation The VHF VCO is used for the following functions i VHF transmission ii The first local oscillator for the main band VHF reception iii The first local oscillator for the sub band UHF reception doubled The UHF VCO is used for the following functions i UHF transmission ii The first local oscillator for the main band UHF reception iii The first local oscillator for the sub band VHF reception halved The PLL reference frequency is generated by a 12 8MHz crystal oscillator connected to the VHF and UHF PLL ICs This reference frequency is used for both PLL circuits The second local oscillator for the VHF band uses the tripled 12 8MHz reference oscillator frequency The 45 05MHz second local oscillator for the UHF band is generated by the IF IC crystal oscillator circuit MIC AMP MIC SP OSC OSC AF AMP PLL 1 PLL 2 VCO 1 VCO 2 DET
91. e PR1 terminal of the DATA connector and the signal buffered by Q700 is output to the PR9 terminal Fig 6 Audio Circuit IF IC IC100 IF IC IC400 AF AMP Q108 2SC5108 Y DE EMPHASIS CROSS POINT SW VR AF AMP IC806 IC804 IC702 Q110 2SC4617 R Q402 2SC4617 R Q405 2SC4617 R BUFFER PR1 PR9 Q701 2SC4617 R BUFFER Q700 2SC4617 R SP TM V708A 7 CIRCUIT DESCRIPTION Fig 7 Cross point switch Audio switching circuit A1 IC702 RAV from IF RAV and RAU is de emphasized audio signal RDV and RDU is not de emphasized A0 RDV from IF RAU from IF RDU from IF BEEP sound from CPU VS 3 vocal sound of option DTMF 1750 signal from CPU DTMF sound from MIC To DTMF decoder To CPU for DCS CT CSS decode To PR9 DATA terminal To PR1 DATA terminal To modulation line to transmit DTMF 1750 To SP1 INT SP side AMP To SP2 side AMP TM V708A 8 CIRCUIT DESCRIPTION Fig 8 Modulation circuit Fig 9 Transmitter circuit 3 Transmitter system 3 1 Modulation Circuit The audio modulation input from the microphone is amplified by IC801 The DTMF signal and 1750Hz tone signal generated by the CPU are also mixed by IC801 The modulation signal from the DATA terminal is switched by IC803 It is directed to IC801 in 1200bps mode and to IC802 in 9600bps mode The signal amplified by IC801 is pre emphasized by Q801 and Q802 and its level is adju
92. es square waveform release the microphone PTT button and press the SET key to set the adjustment value F Tone deviation values set independently for 144MHz and 430MHz 1 Press the and keys to display TONE DEV The current Tone deviation setting is display on the screen See the figure below 2 Connect the linear detector and oscilloscope to the antenna connector Connect a microphone to the microphone connector 3 When the T SEL key is pressed the tone frequency setting mode is entered so set a tone frequency to be adjusted by turning the encoder 4 The microphone PTT button is pressed to enter transmit mode 5 Connect the direct wave detector and power meter to the ANT terminal apply the prescribed A G input from the MIC input terminal and transmit Turn the ENCODER knob to adjust the direct wave detector reading to the prescribed value 6 When the prescried value is reached stop transmission and press the SET key to set the adjustment value G DCS deviation values set independently for 144MHz and 430MHz 1 Press the and keys to display DCS DEV The current DCS deviation setting is display on the screen See the figure below 2 Connect the linear detector and oscilloscope to the antenna connector Connect a microphone to the microphone connector 3 When the T SEL key is pressed the tone frequency setting mode is entered so set a tone frequency to be adjusted by turn
93. ey A D input UP CALL VFO 31 P_UPAN I Remote control key A D input DOWN MR PF 32 TOIN I CTCSS DCS input 33 AVSS Connect to VSS 34 DTMF 1750 O BEEP DTMF sound 1750Hz tone D A output 35 TONE O D A output for SUB TONE 36 AVREF Connect to VDD 37 RxD2 I UART data input from PC L 38 TxD2 O UART data output to PC L 39 RTS2 O UART control signal output to PC 40 RxD1 I Panel UART data input L 41 TxD1 O UART data output to panel L 42 NC O Not used 43 NC O Not used 44 STS O Not used 45 NOT USED I Not used 46 NC O Not used 47 NC O Not used 48 NC O Not used 49 NC O Not used 50 PKSD I Transmission request DATA PKS L Send from DATA L 51 SQC1 O DATA SQC squelch signal output H Open H 52 NC O Not used 53 NC O Not used TM V708A 16 SEMICONDUCTOR DATA 54 58 NC O Not used 59 NC O Not used 60 63 SIM0 3 I Destination judgment bit 0 3 64 CH I Destination channel display mode L 65 PTT I PTT key input L Push down L 66 PEPTR I L 67 CLK O Common clock XSW 2099 E2P DAC VPLL UPLL 68 DATA O Common data XSW 2099 E2PSI DAC VPLL UPLL 69 XSW_LD O Cross Point SW LOAD 70 2099LCK1 O 2099LCK 71 2099LCK2 O 2099LCK 72 VSS GND 73 DTMFCK O DTMF CLOCK LC73881M 74 D
94. he IF amplifier Q112 and enters the IF IC IC100 Then the signal is converted to the 450kHz second IF signal by the second local oscillator which is tripled 12 8MHz Lower heterodyne Then it is detected to generate an audio signal 2 2 Main UHF Receiver The incoming signal from the antenna passes through a filter circuit and enters the RF amplifier Q508 The amplified signal passes through the SAW filter L517 is amplified by another RF amplifier Q505 Then it passes through the LC filter L508 and enters the single balanced mixer Q501 Q502 The frequency of the signal is converted by the first local oscillator Lower heterodyne to generate a 45 05MHz first IF signal The signal passes through the MCF XF400 is amplified by the IF amplifier Q406 and enters the IF IC IC400 The signal is converted to the 455kHz second IF signal by the second local oscillator Upper heterodyne Then it is detected to generate an audio signal IF IC IC100 IF AMP X3 LO AF MCF XF100 CF 12 8MHz SINGLE BALANCED MIXER RF AMP BPF RF AMP CPU LPF L209 L207 L204 TUNE BY VOLTAGE ANT Q112 2SC5108 Y Q102 2SC4649 N P Q200 201 2SK302 GR Q202 3SK239A Q205 3SK239A D206 D205 D202 38 4MHz IF AMP LO MCF XF400 LC BPF L508 AF 45 505MHz IF IC IC400 CF SINGLE BALANCED MIXER RF AMP SAW FILTER RF AMP LPF L517 HPF ANT Q406 2SC5108 Y
95. heral circuits Reset and backup circuits The CPU reset signal is generated by detecting a rising edge of the M5C line voltage with the reset IC IC601 When the voltage supplied to the transceiver decreases and the B line voltage falls below the detection voltage of the voltage detection circuit Q604 D604 the CPU IC604 detects it through the interrupt pin stores data in the EEPROM IC602 and shuts the power off CPU IC604 DISPLAY X54 329 Fig 12 Structure of non synchronized serial communication 5 2 Voltage detection processing The CPU IC604 monitors and process various voltage status at IC604 A D ports The squelch voltage is input from the IF IC and a change in the noise voltage is detected to control squelch The S meter voltage is input from the IF IC to control the S meter display The thermistor voltage temperature and the remote control microphone key operation are also detected through the A D port 5 3 Serial control The CPU IC604 controls the panel unit X54 329 unit through a synchronous serial communication 6 AF Signal System 6 1 Beep circuit and mute circuit A beep sound is generated by the CPU IC604 and goes to cross point switch IC702 This signal is switched by the cross point switch IC702 and are input to the electronic volume IC804 While the beep signal is output from the microprocessor audio signals for each band are muted by the cross point switch IC702 with the serial data from
96. hts All segments in S meter light Display S1 key Write S7 key S1 key S7 key S1 key S7 key S1 key S7 key S1 key S7 key S1 key S7 key S1 key S7 key TM V708A 43 ADJUSTMENT Band B 11 FREQ 444 350MHz SSG DEV 3kHz MOD 1kHz 1S1 SSG 0 28 V 118dBm 2S7 SSG 3 54 V 96dBm 12 FREQ 437 100MHz SSG DEV 3kHz MOD 1kHz 1S1 SSG 0 28 V 118dBm 2S7 SSG 3 54 V 96dBm 13 FREQ 868 900MHz SSG DEV 3kHz MOD 1kHz 1S1 SSG 1 30 V 105dBm 2S7 SSG 12 8 V 85dBm Band B Sub band 14 FREQ 146 350MHz SSG DEV 3kHz MOD 1kHz 1S1 SSG 0 28 V 118dBm 2S7 SSG 3 54 V 96dBm 1 Band A FREQ 146 050MHz 2 Band A Sub band FREQ 444 150MHz 3 Band B FREQ 444 150MHz 4 Band B Sub band FREQ 146 050MHz SSG 0 501 V 113dBm 5 SSG 1 99 V 101dBm 6 SSG 6 3 V 91dBm Item Condition One Segment in S meter lights All segments in S meter light One Segment in S meter lights All segments in S meter light One Segment in S meter lights All segments in S meter light One Segment in S meter lights All segments in S meter light More than one segment in S meter lights Six or smaller segments in S meter light All segments in S meter light SSG Rear ANT panel SSG Rear ANT panel Display S1 key Write S7 key S1 key S7 key S1 key S7 key S1 key
97. ing the encoder 4 The microphone PTT button is pressed to enter transmit mode 5 Connect the direct wave detector and power meter to the ANT terminal apply the prescribed A G input from the MIC input terminal and transmit Turn the ENCODER knob to adjust the direct wave detector reading to the prescribed value 6 When the prescried value is reached stop transmission and press the SET key to set the adjustment value Note To end adjustment mode switch off the power TM V708A 38 ADJUSTMENT Item Condition Measurement Common section Adjustment Specifications Remarks PARTIAL OR FULL RESET If your transceiver seems to be malfunctioning initializing the transceiver may resolve the problem Use Full Reset to initialize all settings that you have customized Partial VFO Reset does not initialize the following settings Some of the VFO factory defaults are listed below 1 2 3 4 1 Setting 1 Power voltage 13 8V 2 Band A Band B VOL SQL knob MIN SSG Rear panel ANT D V M TX RX SMV Test Unit Terminal equipment Unit Parts Method 3 BPF adjust 1 Band A FREQ 146 050MHz SSG 5 01 V 93Bm Memory channels Memory channel names Memory channel lockout Call channels Program scan channels PM channels DTMF memory channels DTMF memory channel names Parameter Band A Band B VFO freq 144 000MHz 440 000MHz Freq step 5kHz 25kHz Tone freq 88 5Hz 88 5Hz 4 Press
98. ircuit The dimmer circuit switches the lamp brightness to one of four levels or OFF See table7 The current flowing to the LEDs is varied by selecting resistors from R8 to R14 LCD 188 54 dot Microprocessor IC4 33 COM 22 COM 88 SEG 100 SEG LCD Driver IC2 LCD Driver IC1 X54 329 Fig 17 Display circuit Table7 Port logic 9V D30 R42 D24 D25 R39 D26 D27 R40 D28 D29 R41 IC4 Microprocessor DIM3 Q8 DIM2 Q7 DIM1 DIM0 Q6 Q5 Q3 R8 R10 R9 R12 R11 R14 R13 LCD ASSY Q2 Q4 Fig 18 Dimmer circuit TM V708A 14 SEMICONDUCTOR DATA 30622M8759GP PANEL UNIT CPU IC4 Pin Port Name I O Function Active No Level 1 KYCALL I CALL key input L 2 KYVFO I VFO key input L 3 KYMR I MR key input L 4 KYPM I PM key input L 5 KYMNU I MENU key input L 6 BYTE I Select 8 bit data bus 5C 7 CNVSS I Select memory expansion mode GND 8 FUNC I F1 key input L 9 KYF1 I F2 key input L 10 RESET I Reset 11 XOUT O Clock output 12 VSS GND 13 XIN I Clock input 14 VCC Power supply input 15 NMI I Not used 16 INT2 I Interrupt from serial input port 17 INT1 I Encoder pulse 1 input 18 INT0 I Encoder pulse 2 input 19 KYF2 I F3 key input L 20 KYF3 I F4 key input L 21 NC I Not used VCC 22 NC I Not used VCC 23 26 DIM
99. na connector and the S7 key is pressed a value is set so that the all segment of the S meter turns on C Transmission output power values set independently for 144MHz and 430MHz 1 Press the and keys to display APC The current transmission output power setting is displayed on the screen See the figure below 2 Select a desired transmission output range HI MID or LOW with the LOW key 3 Connect the power meter to the antenna connector Connect a microphone to the microphone connector 4 Lower limit frequency transmission output setting 1 Set the lower limit frequency and press the microphone PTT button to enter transmit mode 2 Adjust the power meter to the prescribed transmis sion power by turning the encoder 3 When the specified transmission power value is reached release the microphone PTT button and press the FREQ1 key to set the adjustment value 5 Center frequency transmission output setting 1 Set the center limit frequency and press the microphone PTT button to enter transmit mode 2 Adjustment the power meter to the prescribed transmission power by turning the encoder 3 When the specified transmission power value is reached release the microphone PTT button and press the FREQ2 key to set the adjustment value TM V708A 37 ADJUSTMENT 6 Upper limit frequency transmission output setting 1 Set the upper limit frequency and press the microphone PTT button to enter transmit m
100. nsmission 2 FREQ 146 200MHz Transmission 3 FREQ 445 200MHz Transmission 4 FREQ 445 200MHz Transmission 1 Band A FREQ 146 000MHz POWER HI ANT short circuit and open 2 Band B FREQ 444 000MHz POWER HI ANT short circuit and open Transmission Power meter Rear ANT Linear panel detector Oscilloscope Power meter Rear ANT Linear panel detector Oscilloscope Ammeter Check Display Encoder Write SET key Check Display Encoder Write SET key Check Check 0 5 1 3kHz 0 8kHz 0 15kHz 0 5 1 3kHz 0 8kHz 0 15kHz 0 5 1 3kHz 12 0A or less 12 0A or less At the end of adjustments reconfirm 3 DEV A B C D E F G H I J K L M N O P Q R S 1 3 4 5 6 7 8 9 10 11 12 13 14 2 TX RX UNIT X57 5860 12 Component side view J72 0653 11 48 47 Component side Foil side Layer 1 Layer 2 Layer 3 Layer 4 Ref NO Address IC1 H11 IC2 H11 IC3 L11 IC4 L8 IC101 I6 IC301 H8 IC302 H8 IC701 E7 IC703 F5 IC802 F10 IC803 F10 IC804 F9 IC805 H6 IC806 2N IC900 H4 IC901 J3 IC903 L2 IC904 K3 Q4 H10 Q10 K10 Q11 K9 Q103 J5 Q104 H5 Q105 I6 Q106 I6 Q107 I6 Q108 I5 Q110 I5 Q111 H6 Q112 J6 Q208 O6 Q303 H8 Q402 K6 Q404 L5 Q405 K7 Q406 L6 Q700 E7 Q701 E8 Q801 F11 Q802 F11
101. ode 2 Adjustment the power meter to the prescribed transmission power by turning the encoder 3 When the specified transmission power value is reached release the microphone PTT button and press the FREQ3 key to set the adjustment value D Transmission deviation values set independently for 144MHz and 430MHz 1 Press the and keys to display MAX DEV The current transmission deviation setting is display on the screen See the figure below 2 Connect the direct wave detector and power meter to the ANT terminal apply the prescribed A G input from the MIC input terminal and transmit Turn the ENCODER knob to adjust the direct wave detector reading to the prescribed value 3 When the prescribed value is reached stop transmission and press the SET key to set the adjustment value E DCS modulation balance values set independently for 144MHz and 430MHz 1 Press the and keys to display DCS BALANCE The current DCS modulation balance setting is display on the screen See the figure below 2 Connect the linear detector and oscilloscope to the antenna connector Connect a microphone to the microphone connector 3 When the microphone PTT button is pressed to enter transmit mode 50Hz square waves are internally generated and modulated 4 While observing the oscilloscope turn the encoder to adjust the DCS modulation waveform to square waveform 5 When the DCS modulation waveform becom
102. sted by IC804 and the resulting signal goes to each of the VHF and UHF VCOs as a modulation signal The TONE CTCSS DCS signal generated by the CPU is fed to IC802 in the same way as the 9600bps mode signal from the DATA terminal The signal amplified by IC802 is distributed and the level is adjusted The modulating signal goes to each of the VHF and UHF VCOs The signal is amplified by IC300 and modulates the reference oscillation circuit 3 2 Transmitter circuit The VHF VCO output is amplified by 3 stage amplifier RF amplifier Q6 and driver amplifier Q8 Q9 It is amplified to the final output by the power module The signal passes through antenna switch D14 D15 and low pass lifter and is fed to the antenna The UHF VCO output is amplified by 4 stage amplifier RF amplifier Q304 and driver amplifier Q307 Q309 and Q310 It is further amplified to the final output by the power module The signal passes through antenna switch D314 low pass filter and high pass filter Then it is fed to the antenna VHF VCO UHF VCO AF AMP Q802 2SC4617 S PRE EMPHASIS MIC AMP DTMF1750 IC801 IC804 M62364FP Q801 2SC4617 S NJM2100V TONE CTCSS DCS 1200bps SW PKD CPU IC803 BU4066 BCFV IC803 BU4066 BCFV AMP IC300 NJM2904V IC2 KCH38 IC302 KCH28 IC802 TA75S01F SW TONE AMP MIC POWER AMP LPF HPF Q310 2SC2954 Q309 2SC3357 Q307 2SC4093 R27 UHF VCO Q304 2SC51
103. t 1kHz modulation The data communication connector input level is 3kHz deviation at 1kHz modulation for 1200bps and 2kHz deviation at 1kHz modulation for 9600bps Note2 The transmit frequency is 145 0 or 435 0MHz Note3 The HI MID LOW switch is set to HI Note4 The measurements with the power meter except for the ANT connector are the values with the APC off Receiver Section 360mV 360mV VHF IF IC UHF IF IC IC100 IC400 101dBm 109dBm 106dBm 108dBm 105dBm 106dBm 98dBm Q406 Q502 Q501 103dBm Q508 Q505 Q203 100dBm Q202 Q507 Q205 Q200 Q201 Q112 38 85MHz 45 05MHz MAIN VHF MAIN UHF SUB VHF SUB UHF AF AF 105dBm Note1 The 12dB SINAD levels were plotted using a standard signal generator through a 0 01 F ceramic capacitor at each point from the RF to the first IF Note2 The AF levels were measured with an AF voltmeter when the 73dBm 50 V standard signal generator signal modulated by a 1kHz modulation frequency and a 3kHz deviation was received and the AF output was adjusted to 0 63V 8 by the AF VR 71 TM V708A Ref New No Parts Parts No Q ty Parts Name 1 E30 3199 15 1 DC CORD 6m 2 E30 7521 05 1 MODULAR CABLE 4m MIC 3 E30 3395 05 1 MODULAR CABLE 4m PANEL 4 E30 3399 05 1 TRUNK CABLE 4m SP 5 E58 0472 05 1 MODULAR JACK 6 PIN 6 E58 0473 05 1 MODULAR JACK 8 PIN 7 G13
104. t frequency of the band D Transmission deviation E DCS modulation balance F Tone deviation G DCS deviation Adjustment mode startup method 1 Turn PWR OFF and insert the adjustment plug into the data terminal of the transceiver 2 Hold down the F and TONE keys and turn PWR ON 3 The transceiver will enter the adjustment mode and display the following 4 In adjustment mode the desired band and frequency can be selected with VFO MR ENCODER MHZ and BAND SEL 5 Pressing the or key switches the adjustment item to the previous item or the next item among the seven adjustment items A G A Squelch open sensitivity value set for each band 1 Press the and keys to display SQUELCH The current squelch level input value is displayed on the screen and adjustment can be performed See the figure below 2 When specified SSG input is applied to the antenna connector and the SET key is pressed an adjustment value is set B S meter value set for each band 1 Press the and keys to display S METER The current S meter input value is displayed on the screen and adjustment can be performed See the figure below 2 S meter the first segment ON When specified SSG input applied to the antenna connector and the S1 key is pressed a value is set so that the first segment of the S meter turns on 3 S meter all segments ON When specified SSG input applied to the anten
105. the DCS and 9600bps packet signal when it is transmitted Fig 11 PLL circuit VHF VCO HT CV Q3 2SC5108 Y PLL LD Q102 2SC4649 N P 38 4MHz 12 8MHz X3 IC1 MB1511PFV GBND CHARGE PUMP Q1 2SA1774 S Q2 2SC4617 R IC2 KCH38 UHF VCO HT CV Q304 2SC5108 Y PLL 12 8MHz LD IC301 MB1511PFV GBND CHARGE PUMP Q300 2SA1774 S IC302 KCH28 Q301 2SC4617 R TM V708A 10 CIRCUIT DESCRIPTION 4 2 Phase comparator Part of the VHF VCO output is amplified by Q3 and goes to VHF PLL IC Also a part of the UHF VCO output is amplified by Q302 and goes to the UHF PLL IC The pulse swallow type PLL IC divides the input VCO oscillator frequency using the data from the CPU IC604 It compares its phase with that of the reference frequency to make the PLL synthesizer to generate the desired step 4 3 Lock voltage VCO control voltage The phase differential comparator output from the PLL IC results in a phase difference pulse This pulse is amplified by a charge pump Q1 Q2 or Q300 Q301 the ripples are removed by a low pass filter Then the signal is supplied as the oscillator frequency control voltage for each VCO 4 4 Unlock detection circuit When the PLL is unlocked a low state voltage is outputted from pin 8 of the PLL IC This signal is monitored by the CPU IC604 to control transmission reception switching timing 5 Power supply circuit 5 1 Microcomputers and perip
106. the microprocessor IC604 The signals output from the electronic volume IC804 are input to the speaker switching circuit and go through the audio mute circuit Q804 and Q805 Then it is input to the power amp IC806 Fig 13 Beep circuit and mute circuit CROSS POINT SW AO 1 AO 0 CPU R857 R874 R870 R873 R872 R875 R858 IC 808 IC807 Q804 Q805 MUTE MUTE D803 J801 J802 CN800 IC806 POWER AMP BEEP DTMF RAV RAU IC702 IC804 IC604 ELECTRONIC VOLUME 13 8 1 6 1 1 7 7 5 5 6 TM V708A 11 CIRCUIT DESCRIPTION The AF signal output combinations are as in the speaker combination table on the below Fig 15 Microphone key input circuit Fig 14 Speaker switching circuit CROSS POINT SW AO 1 AO 0 CPU R857 R874 R870 R873 R872 R875 R858 IC 808 IC807 Q804 Q805 MUTE MUTE D803 J801 J802 CN800 IC806 POWER AMP BEEP DTMF RAV RAU IC702 IC804 IC604 ELECTRONIC VOLUME 13 8 1 6 1 1 7 7 5 5 6 MIC PTT MIC UP MIC DW INT3 MICRO PROCESSOR M 5C 5C R806 R804 R803 R805 MIC 100K 100K 22K 22K IC604 R683 R684 R685 IC800 R812 R808 C801 C800 C802 PTT UP DOWN CALL VFO MR PF KEY INPUT INTERRUPT CIRCUIT 6 2 Speaker Switching Circuit There are two speaker jacks J801
107. ts conflicts from occurring between simultaneous receive mode and transmit mode traffic during packet communications only during 1200bps The signal is output from Pin 15 of IC703 to the data terminal The logic is as shown in the Table below 8 Panel Section LCD ASSY B38 0829 05 The panel section controls serial communications with the main unit control section the key input circuit the display circuit and the dimmer circuit through the microprocessor IC4 8 1 Serial communications circuit A buffer amp is inserted in order to protect the microprocessor ports 8 2 Key Volume Input circuit Circuits to operate the panel section keys are connected to each microprocessor port The PSW key is pulled up and the other keys are pulled up with software within the microprocessor Rotary encoder operating circuits are connected directly to the microprocessor The control divides the power supply voltage reads the A D port of the microprocessor and transfers that data to the main unit SQC terminal output L SQ CLOSE J700 Pin 6 H SQ BUSY 8 3 Display circuit The TM V708A display section is a 188x54 dot full dot matrix LCD controlled by two LCD As shown is Figure 17 the master IC IC2 side is connected to 22 common dots and 88 segment dots and the stave IC IC1 side is connected to 33 common dots and 100 segment dots The LCD drive voltage is obtained by raising the power supply voltage 5V within the IC 8 4 Dimmer c
108. weep the 144 and 430MHz bands 16 Tracking generator 17 Adjustment jig Preparation Set the controls and switches to the positions listed below unless otherwise specified Microphone socket as viewed from the front of the set Use an insulated rod such as a plastic rod for adjustment especially for trimmers coils etc To protect the signal generator never connect the microphone to the microphone socket when the receiver section is adjusted Before the power cord is connected make sure the power switch is off Without specification of SSG standard modulation is applied MOD 1kHz DEV 3kHz AF output 0 63V 8 See the instruction manual for transmit and receive operations UP C8 DC8V 100mA max NC MIC ME E PTT DWN TM V708A 34 ADJUSTMENT DIN pin No Color 1 Brown 2 Red 3 Orange 4 Yellow 5 Green 6 Blue Bracket Shield Adjustment Service Jig Service jigs usage Pin assignment seen from direction B Service jigs specification Plug cable with 6P mini DIN Model PG 5A cable parts No E30 3202 05 processed like under fig Data terminal short plug W05 0611 00 1 PKD 3 PKS E GND 5 PR1 6 SQC 4 PR9 2 DE B Short plug Terminals 3 and 6 are short circuited Reference 3 PKS SEND switch for DATA terminal Connect PTT output If PKS is set to L data are sent and the microphone will
109. write or check Band B 3 DEV write or check 4 DCS balance adjustment 5 TONE DEV write or check Band A Band B Power Rear ANT meter panel Ammeter Power meter Rear ANT Linear panel detector Oscilloscope AG AF V M Power meter Rear ANT Linear panel detector Oscilloscope Power meter Rear ANT Linear panel detector Oscilloscope 28 42W 10 14W 3 10W 4 2kHz 0 15kHz 2 38 4 05kHz 4 2kHz 0 15kHz 2 38 4 05kHz 0 8kHz 0 15kHz 0 5 1 3kHz 0 8kHz 0 15kHz Check Display Encoder Write SET key Check Display Encoder Write SET key Check Display Encoder SET key Display Encoder Write SET key Check Display Encoder Write SET key Item Condition Measurement Transmission section Adjustment Specifications Remarks Test Unit Terminal equipment Unit Parts Method By turning an encoder adjust the modulation wave until it becomes the square wave TM V708A 46 ADJUSTMENT Item Condition Measurement Transmission section Adjustment Specifications Remarks Test Unit Terminal equipment Unit Parts Method 5 TONE DEV write or check Band B 6 DCS DEV write or check Band A Band B 7 Protection check 4 FREQ 445 100MHz TONE 88 5Hz Transmission For 1 and 3 Switch to adjustment mode and carry out the operations for Item G 1 FREQ 146 200MHz Tra

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