M-110 Plus Service Manual
Contents
1. Fae Created by Approved by Rev No For Stage Release Date Page 15 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date PLL CIRCUIT BLOCK DIAGRAM 1 INTRODUCTION The frequencies for transmitter and receiver first local frequencies are all derived from a single 10 240 MHz crystal by means of a phase locked loop The first local oscillator frequencies are 16 270 MHz CH 1 to 16 710 MHz CH 40 for EU and 16 90625 MHz CH 1 to 17 29625 MHz CH 40 for UK The second local frequency is fixed at 10 240 MHz to generate second IF 455 KHz During transmit The VCO of the PLL operates 13 4825 MHz CH 1 to 13 7025 MHz CH 40 for EU 13 800625 MHz CH 1 to 13 995625 MHz CH 40 for the VCO frequency gose to the double circuit Q301 L301 L302 which doubles the frequency to generate 26 965 MHz CH 1 to 27 405 MHz CH 40 for EU and 27 60125 MHz CH 1 to 27 99125 MHz CH 40 for UK To Transmitter Q 408 Q 301 VCO Doubler 13 4825 MHz CH 1 EU 26 965 MHz CH 1 13 7025 MHz CH 40 EU 27 405 MHz CH 40 13 800625 MHz CH 1 UK 27 60125 MHz CH 1 13 995625 MHz CH 40 UK 27 99125 MHz CH 40 The VCO operating frequency for the receiver2. BAND 02 ITALY 36CH AM FM 4W CH Frequency MHz Modulation CH Frequency MHz Modulation 1 26 965 AM FM 19 27 185 AM FM 2 26 975 AM FM 20 27 205 AM FM 3 26 985 AM FM 21 27 215 AM FM 4 27 005 AM FM 22 27 225 AM FM 5 27 015 AM FM 23 27 255 AM FM 6 27 025 AM FM 24 27 245 AM FM 7 27 035 AM FM 25 27 265 AM FM 8 27 055 AM FM 26 26 875 AM FM 9 27 065 AM FM 27 26 885 AM FM 10 27 075 28 26 895 11 27 085 29 26 905 AM FM 12 27 105 AM FM 30 26 915 AM FM 13 27 115 AM FM 31 26 925 AM FM 14 27 125 AM FM 32 26 935 AM FM 15 27 135 33 26 945 AM FM 16 27 155 AM FM 34 26 955 AM FM 17 27 165 AM FM 35 26 855 AM FM 18 27 175 AM FM 36 26 865 AM FM Created by Approved by Rev No For Stage Release Date Page 27 1 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date BAND 03 GERMANY 80CH FM 12CH AM 1W CH Frequency MHz Modulation CH Frequency MHz Modulation 1 26 965 FM 41 26 565 FM 2 26 975 FM 42 26 575 3 26 985 FM 43 26 585 FM 4 27 005 AM FM 44 26 595 FM 5 27 015 AM FM 45 26 605 FM 6 27 025 46 26 615 7 27 035 AM FM 47 26 625 FM 8
3. ALIGNMENT PROCEDURE Step Setting Connection Adjuster Adjust for Frequency adjustment MIC Receive Volume optional Frequency counter 1 Squelch optional to dummy load CT201 27 185MHz 300Hz CH selector 19 EU Figure 1 CHO off VCO Voltage adjustment Connect DC voltmeter between 2 R406 418 1501 1 5V at RX Squelch optional GND CH selector 00 BAND SN 00 Figure 2 CH9 OFF R406 C418 ond GND 25 tr Power Supply DC Yo meter Figure 1 Figure 2 Created by Approved by Rev No For Stage Release Date Page 8 53 NTEK Model No 3394 Customer Drawring No Rev Date M 110 Plus TRANSMITTER SECTION Test Equipment Required e RF power meter RF SSVM e DC power supply 13 2 volt 3 amp e 50 ohms dummy load non inductive e RF attenuator 50 ohms non inductive e Spectrum analyzer e Frequency counter e Oscilloscope e Coupler e Audio generator ALIGNMENT PROCEDURE Step Setting Connection Adjuster Adjust for power stage Connect dummy load L301 Maximum indication MIC Transmit and power meter to L302 on the power meter 4 Volume optional the EXT ANT jack on the L303 watts If indication is Squelch optional set Figure 3 not in 4 watts range 1 CH selector 19 adjust L301 L302 CH9 OFF Second harm
4. CH Frequency MHz Modulation CH Frequency MHz Modulation 1 27 60125 FM 1 26 965 FM 2 27 61125 FM 2 26 975 FM 3 2 62125 FM 3 26 985 FM 4 27 63125 FM 4 27 005 FM 5 2 64125 FM 5 27 015 FM 6 27 65125 6 27 025 7 27 66125 FM 7 27 035 FM 8 27 67125 8 27 055 9 27 68125 9 27 065 10 27 69125 10 27 075 FM 11 27 70125 11 27 085 12 27 71125 12 27 105 FM 13 27 72125 13 27 115 14 27 73125 14 27 125 15 27 74125 15 27 135 FM 16 27 75125 16 27 155 17 27 76125 17 27 165 18 27 77125 18 27 175 19 27 78125 19 27 185 20 27 79125 20 27 205 FM 21 2 80125 FM 21 2 215 FM 22 2 81125 FM 22 2 225 FM 23 2 82125 FM 23 27 255 24 27 83125 24 27 235 25 27 84125 25 27 245 26 27 85125 26 27 265 27 27 86125 27 21 215 FM 28 27 87125 FM 28 27 285 FM 29 27 88125 FM 29 27 295 30 27 89125 30 27 305 31 27 90125 31 27 315 FM 32 2 91125 FM 32 27 325 33 27 92125 33 27 335 FM 34 27 93125 FM 34 27 345 35 2 94125 FM 35 2 355 FM 36 27 95125 FM 36 27 365 37 2 96125 FM 37 2 375 FM 38 27 97125 38 27 385 39 27 98125 FM 39 2 395 FM 40 27 99125 40 27 405 Created by Approved by Rev No For Stage Release Date Page 32 33 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Dat
5. 1 IF 10 695 MHz 2 IF 455 MHZ Sensitivitly 0 5 uV for 20 db SINAD in FM mode Audio Distortion Less Than 8 1 KHz MAGS SC SCHON M 65 dB Adjacent ChanneIRejection 65 dB Signal Noise Fatt Mec rc E 45 dB Current Drain at SlANODY sosta 325 mA 3 TRANSMITTER E AW 13 2 V DC 2 FM 1 8 KHz 0 2 KHz Frequency response From 400 Hz to 2 5 KHz Output impedance RF 50 ohm Unbalance Signal 40 Dral I i aE 1300 mA Created by Approved by Rev No For Stage Release Date Page 3 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date OPERATION INSTRUCTIONS Having properly installed your batteries and hooked up the antenna you are now ready to operate your radio for optimum reception and voice transmission Turn the power ON with ON OFF switch Set the desired channel Adjust the squelch control knob to reduce any undesirable background noise when no signal is being received To do this select a c
6. Figure 4 RECEIVER SECTION Test Equipment Required e RF Signal generator RFSG e SSVM e Distortion meter e DC power supply ALIGNMENT PROCEDURE Step Setting Connection Adjuster Adjust for Audio output adjustment Connect RF signal L3 Maximum indication MIC Receive generator to EXT ANT L4 on SSVM Reduce Volume Fully clockwise jack Connect SSVM 1102 output from RFSG Squelch Turn to and distortion meter L103 until the audio output Counter clockwise with 8 ohm dummy L104 becomes about CH selector 19 load 500mW 2V 1 RF gain Fully clockwise Figure 7 CH9 OFF RFSG 27 185 MHz 1kHZ 1uV 1 2 Dev Created by Approved by Rev No For Stage Release Date Page 11 53 NTEK Model No 3394 Customer Drawring No Rev Date M 110 Plus Squelch adjustment MIC Receive Volume 50mW 2V Squelch Clockwise CH selector 19 Connect RF signal generator to EXT ANT Jack Connect SSVM and distortion meter to EXT speaker jack with RV2 Adjust until the audio output appears RFSG 27 185MHz 1kHZ 8 ohm dummy load 1mV 1 2K DEV Figure 7 UJ Figure 5 Created by Approved by Rev No For Stage Release Date Page 12 53 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date Figure 6 e Figure 7 Created by Approved b
7. NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date SEMICONDUCTOR LEAD IDENTIFICATION AND IC INTERNAL CONNECTIONS INTERATED CIRCUITS IC9 24LLCO2 IC3 EFHP5830AD BU2630F MC 3361 8 PIN IC104 UTC TDA2003 DIODES KDV251 1N4004 1N4148 1N5232 1N5404 1N5237 _ K es ui TRANSISTORS 211 KRC101S KRC110 25 2314 25 2078 1367 3876 3880 3875 3880 KRC101 104 STG2412G s Created by Approved by Rev No For Stage Release Date Page 49 53 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date KDS184 KIA324 8 ya E K 5 i hy IN oC gt REUS Ao WS Created by Approved by Rev No For Stage Release Date Page 50 23 Model No 3394 Customer M 110 Plus Drawring No Rev Date Model M 110 plus Explode view part list No Part No Part name amp Description Q ty Ref Remark 1 633 082 SCREW 6 BLK 7 SPEAKER 3 UP BO COVER 2 633 152 SCREW BH3X4 3S BLK 2 REAR COVER 2 3 719 062 A COVER BOTTOM SECC PVC 0 75 1 4 719 063 UPPER COVER SECC PVC 75 1 5 730 015 A HOLDER SPK EGI T1
8. 16 27 155 36 2 365 AM FM 17 27 165 37 27 375 AM FM 18 27 175 AM FM 38 27 385 AM FM 19 27 185 AM FM 39 27 395 AM FM 20 27 205 40 27 405 Created by Approved by Rev No For Stage Release Date Page 30 53 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date BAND 06 40CH FM 4W CH Frequency MHz Modulation Frequency MHz Modulation 1 26 965 FM 21 27 215 FM 2 26 975 FM 22 27 225 FM 3 26 985 FM 23 2 255 FM 4 27 005 FM 24 27 235 FM 5 27 015 FM 25 27 245 FM 6 27 025 FM 26 27 265 FM 7 27 035 FM 27 27 275 FM 8 27 055 FM 28 27 285 FM 9 27 065 FM 29 27 295 FM 10 27 075 FM 30 27 305 FM 11 27 085 FM 31 27 315 FM 12 27 105 FM 32 27 325 FM 13 27 115 FM 33 27 335 FM 14 27 125 FM 34 27 345 FM 15 27 135 FM 35 27 355 FM 16 27 155 FM 36 27 365 FM 17 27 165 FM 37 27 375 FM 18 27 175 FM 38 27 385 19 27 185 39 27 395 20 27 205 40 27 405 Created by Approved by Rev No For Stage Release Date Page 3l 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date BAND 07 ENGLAND 40CH FM 4W UK FREQUENCIES EC 40CH FM 4W
9. Created by Approved by Rev No For Stage Release Date Page 5 53 NTEK Model No Customer 3394 Drawring No Rev Date M 110 Plus E Receiver CB receiver is dual conversion supper heterodyne type with the first IF 10 695 MHz and second IF 455 KHz Receiver is separated two blocks 1 IF section and 2 IF section The PLL synthesizer supplies first local frequency 16 270 16 710 MHz for EU and 16 90625 MHz 17 29625 MHz for UK With the provided first local frequencies Q105 Q106 mixes the incoming RF signal to generate first IF signal Mixed signals were filtered with the XF101 10 695 MHz crystal filter and other tuning circuits Output signal of mixer is filtered with CF101 455 KHz ceramic filter The 455 KHz signal from the 2 IF filter was amplified and limits internaly After amplification the signals fed the quadrature detector loop L104 Then we can see the recovered audio signals on Pin 9 for FM of IC1 With the amplitude of recovered signals Q108 serves as an audio amplifier For AM signal Will be pass filter CF1 and induced to Q110 Q111 respective and detected to voice signal by D111 TROUBLESHOOTING HINTS Symptom Probable Cause Remedy e Defective power switch VR102 e Replace Unit does not e Blown fuse e Replace work at all e Broken DC power cord e Replace e Defective IC3 e Replace No output from Defective external speaker jack e P
10. 2 SW1 2 36 202 066 2 TRANSI STOR KTB1367 1 214 37 204 010 1 TRANSI STOR 2SC2078 E 1 Q304 38 221 889 8 AUDIO POWER AMPLIFIEUTC TDA2003 V TO 1 1C104 39 421 046 7 CONNECTOR CH 239 A SW 1229 1 J 103 Created by Approved by Rev No For Stage Release Date Page 51 53 Model No 3394 Customer M 110 Plus Drawring No Rev Date No Part No Part name amp Description Q ty Ref Remark 40 421 559 4 CONNECTOR 5 16 4 PCB R 1 1 41 440 020 4 0 1 15 13 1 42 504 734 2 POWER CORD ASS Y 1 43 411 391 B P C B MAIN 166 X 128 X 1 6 XPC 94HB 1 44 411 839 P C B LCD 130X30X L6T XPC 94HB 1 45 420 705 17 JACK DC 8 078 01 1 1101 46 431 249 7 SW SLIDE SKS 2301U 1 SWA 47 431 253 0 SLI DE SWITCH SKS 2201U 1 SW3 48 450 417 3Y VR 10KC 15SK 1615 1 VR108 49 450 604 57 VR RS1610N 15KQB1 15A50K 1 VR102 Created by Approved by Rev No For Stage Release Date Page 52 53 NTEK Model No 3394 Customer lt a ako R PA N M 110 Plus Drawring No Rev Date Sy Created by Approved by Rev No For Stage Release Date Page 53 53
11. MC3361 S 1 0 0 2 0 0 3 0 0 4 0 0 5 0 0 6 0 0 7 0 0 8 0 0 Created by Approved by Rev No For Stage Release Date Page 46 53 Model No 3394 Customer IC3 EFHP5830AD M 110 Plus Drawring No Rev Date O O A a O Wr Ar Huy My MS S a GO 2 SION NOD DIN NA Ole ni Created by Approved by Rev No For Stage Release Date Page 47 33 Model No 3394 Drawring No Customer M 110 Plus Rev Date DIODE REF TX D2 3 2 D103 1N4148 5 1N4148 D3 0 D104 1N4148 0 7 1N4148 1 1 D203 1N4148 D402 KDV251 D403 KDV251 D407 1N4148 2 3 4 2 gt gt gt gt p S BOR P m 5 ON oo D4 1N4148 gt gt 8 m uo D5 1N4148 mI oo mI oo ee D6 1N4148 m ojo ojo m ole ojo D8 1N4148 D101 D413 1N4148 1N4148 Z1 I lt m oo oe D DZ201 gt mW DZAOI m o 5 6 5 6 Created by Approved by Rev No For Stage Release Date Page 48 33
12. 0 0010 GRM40 X7R102K 50V PT 0 1UF 40 Y5V104Z 25V PT 0 01UF GRM40 X7R103K 50V PT 0 022UF CM21 X7R223K 50V AT 0 0330 GRM40 X7R333K 50V PT Drawring No Rev Date Ref 4 R39 407 437 442 2 R27 306 4 R36 109 213 311 7 R40 42 144 236 303 304 315 21 R2 11 19 21 22 23 25 31 32 33 101 146 271 272 273 274 435 443 461 13 45 1 8138 1 R434 1 R148 1 R413 1 R136 2 R137 405 1 R441 2 820 439 1 C316 6 C54 115 144 221 226 446 16 C8 17 29 36 53 122 127 128 136 142 208 215 451 453 458 500A 38 C10 22 25 26 38 39 40 43 47 49 50 102 112 120 129 137 138 139 147 149 217 227 231 234 236 241 256 302 304 308 409 424 427 434 438 443 531 532 4 27 37 152 306 1 59 Created by Approved by Rev No For Stage Release Date Page 38 53 INTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date No Part No Part name amp Description Ref 72 130 424 0Y CHIP CERAMIC 0 047UF GRM40 X7RAT3K 50V PT 11 C19 35 135 141 143 145 222 248 314 322 323 73 130 602 4 CHIP CERAMIC 0 0068UF GRM40 X7R682K 50V PT 1 C454 74 130 606 8Y CHIP CERAMIC 0 068UF GRM40 X7R683K 50V PT 3 C42 411 455 75 131 027 0OY CHIP CERAMIC 100PF 40 COG101J 50V 7 250 251 252 253 414 418 423 76 131 039 10PF GRM40 COG100C 50V PT 8 C4 5 6 28 31 114 417 425 77 1
13. 3 26 985 AM FM 53 27 565 AM FM 4 2 005 AM FM 54 2 575 AM FM 5 27 015 55 2 585 AM FM 6 2 025 AM FM 56 27 605 7 27 035 57 27 615 8 27 055 58 27 625 9 27 065 59 27 635 AM FM 10 27 075 AM FM 60 27 655 11 27 085 61 27 665 12 27 105 AM FM 62 27 675 13 27 115 AM FM 63 27 705 14 27 125 AM FM 64 2 685 AM FM 15 27 135 65 27 695 16 27 155 AM FM 66 27 715 17 27 165 AM FM 67 27 725 AM FM 18 27 175 68 27 735 AM FM 19 2 185 AM FM 69 27 745 20 27 205 70 27 795 FM 21 27 215 71 27 765 AM FM 22 2 225 AM FM 72 27 775 AM FM 23 2 255 AM FM 73 27 785 AM FM 24 2 235 AM FM 74 27 795 25 27 245 75 27 805 AM FM 26 2 265 AM FM 76 2 815 AM FM 27 27 275 77 27 825 28 27 285 78 2 835 AM FM 29 2 295 AM FM 79 2 845 AM FM 30 27 305 80 27 855 FM 31 27 315 81 27 865 AM FM 32 2 325 AM FM 82 2 875 AM FM 33 2 335 AM FM 83 2 885 AM FM 34 2 345 AM FM 84 2 905 AM FM 35 27 355 85 27 915 36 2 365 AM FM 86 2 925 AM FM 37 27 375 AM FM 87 2 935 AM FM 38 2 385 AM FM 88 2 955 AM FM 39 2 395 AM FM 89 2 965 AM FM 40 27 405 90 27 975
14. 41 27 415 91 27 985 42 27 425 92 28 005 43 27 435 AM FM 93 28 015 AM FM 44 2 455 AM FM 94 28 025 AM FM 45 27 465 95 28 035 46 27 475 AM FM 96 28 055 AM FM 47 2 485 AM FM 97 28 065 48 27 505 AM FM 98 28 075 AM FM 49 27 915 99 28 085 AM FM 50 27 525 AM FM 00 28 105 AM FM Created by Approved by Rev No For Stage Release Date Page 34 53 BAND OO SPECIAL BAND B 100CH AM FM 4W CH Frequency MHz Modulation CH Frequency MHz Modulation 1 26 965 AM FM 51 26 855 AM FM 2 26 975 AM FM 52 26 845 AM FM 3 26 985 AM FM 53 26 835 AM FM 4 2 005 AM FM 54 26 825 5 27 015 55 26 815 AM FM 6 2 025 AM FM 56 26 795 7 27 035 57 26 785 8 27 055 58 26 805 9 27 065 59 26 775 10 27 075 60 26 765 11 27 085 61 26 755 12 27 105 AM FM 62 26 735 AM FM 13 2 115 AM FM 63 26 725 AM FM 14 2 125 AM FM 64 26 715 AM FM 15 27 135 65 26 705 AM FM 16 2 155 AM FM 66 26 685 AM FM 17 2 165 AM FM 67 26 675 AM FM 18 27 175 68 26 665 AM FM 19 2 185 AM FM 69 26 65
15. For Stage Release Date Page 17 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date The VCO frequency goes to the double circuit which doubles the incoming signals Double output Frequency Transmit CH 1 13 4825 MHz 26 965 MHz CH 1 13 800625 MHz 27 60125 MHz Transmit CH 40 13 7025 MHz 27 405 MHz CH 40 13 995625 MHz 27 99125 MHz Since all frequencies are obtained from the crystal controlled PLL oscillator all outputs are coherent with the crystal oscillator frequency and maintaining the same percentage accuracy INTERNAL BLOCK DIAGRAM XTIN TAOUT TAPWMIP3 1 8 Bit RESET Xourxrour BUZ P14 TACLK P3 2 X Timer 3 gt Counter A Voltage 4 WLDREF Detector 8 Bit TBPWM P3 0 4 Timer Voltage 4 CB Counter B Booster 3 lt gt CA 16 Bit Timer Counter 0 lt VLCO VLC2 COMO COM3 T1CAP P1 0 16 Bit TICLK P1 1 gt Timer Port and Interrupt Control T1OUT T1PWM P1 2 gt Counter 1 LCD Driver SEGO SEG15 SEG16 SEG31 0 0 0 7 VO Port 0 P10 P174 VO Port 1 SAM88 RC CPU 0 SUP17 Pon SO P1 5 AVREF lt gt SCK P1 6 AVss gt Converter 2 0 2 7 lOPort4 4 P4 0 P4 7 ADCO ADC
16. PLL IC 6 X TAL X901 VCO VARICAP DOIDE D402 IC3 is a cmos LSI that includes most of PLL block and driver the Q408 C51 C414 C417 C423 and 501 Varicap diode D402 clapp oscillator circuit to operate as VCO of the 6 0408 is switching transistor to connect or disconnect the tuning capacitor in the VCO oscillator tank circuit for transmitter or receiver Q406 works as a buffer AMP for RX local frequencies 16 MHz and TX generating frequencies 13 MHz B Reference frequency The crystal X901 10 240 MHz and other components of IC6 can make a reference frequency oscillator with internal amplifier C VCO Q408 and surrounding parts are consisting a clapp oscillator works as a VCO of IC6 the VCO can be oscillate over the required of 13 4825 MHz to 17 29625 MHz Created by Approved by Rev No For Stage Release Date Page 21 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date D Phase detector and VCO control The detector is a digital phase comparator which compares the phase of the reference signal with programmable divider output square waves and develops a series of pulses whose DC level depends on the phase error of each signal E Transmitter Receiver buffer AMP Output signal of Q408 is fed into buffer AMP Q411 F Transmitter doubler The output signals of Q411 goes to an amplifier with tuning circuit Q301 L301 L302 which doubles in
17. C325 C327 L311 C337 C333 L312 C328 C334 C338 L313 serves as a spurious radiation suppressor This network also serves to match the impedance between TX power AMP Q304 and the antenna C Circuit for Limiting Power After finished all alignment the constant voltage supply circuit limits the available power 4 W or slightly less RV1 and corresponding three transistors control supply voltage of RF amplifier and other circuits Tune all the trimmer parts for maximum indication of RF power meter and adjust RV1 to make 4 w indication of RF power meter The tuning is adjusted so that the actual power is from 3 8 to 4 0 W There are no other additional controls for adjusting the TX output power D Modulation Control a FM The mic input is fed to mic audio amplifier IC KIA324 which drives modulation varicap diode D403 in the VCO circuit RV401 limits the incoming modulation audio levels to inhibit over modulation While reading the modulation factor on the modulation analyzing equipment adjust RV401 shall not exceed 1 8 KHz Dev After 20 dB up from 1 25 KHz 1 2 KHz Dev Audio level b AM Modulation signals are filtered with RC network and goes to the audio power AMP IC IC2 to make nominal signal level to achieve wanted modulation To control incoming audio signal diode D203 and corresponding ALC circuit limits the modulation shall not exceed 80 adjust RV201 80 modulation under 1 0 KHz AF 60 mod plus 20 dB of audio signal
18. Description Q ty Ref 28 533 94 MAIN BODY ASS Y 1 29 533 94 PCB AUTO ASS Y 1 30 060 101 67 CHIP RESISTOR 100 1 10W 596 T 2012 4 R127 139 152 447 31 060 102 77 CHIP RESISTOR 1K 1 10W 5 T 2012 15 R5 16 18 34 37 102 105 106 112 125 226 412 416 425 719 32 060 103 87 RESISTOR 10K 1 10W 5 T 2012 8 R7A 44 134 221 276 305 444 446 33 060 104 9Z CHIP RESISTOR 100K 1 10W 5 T 2012 8 R8 29 157 406 409 411 415 438 34 060 105 0Z CHIP RESISTOR 1M 1 10W 5 T 2012 1 R135 35 060 123 67 CHIP RESISTOR 12K 1 10W 596 T 2012 3 R3 30 445 36 060 151 17 CHIP RESISTOR 150 1 10W 5 T 2012 2 R229 313 37 060 152 2Z2 CHIP RESISTOR 1 5K 1 10W 5 T 2012 3 R211 218 421 38 060 153 37 CHIP RESISTOR 15K 1 10W 5 T 2012 4 R35 55 212 223 39 060 154 47 CHIP RESISTOR 150K 1 10W 596 T 2012 2 R26 301 40 060 181 8Z CHIP RESISTOR 180 1 10W 5 T 2012 1 R12 41 060 182 997 CHIP RESISTOR 1 8K 1 10W 596 T 2012 1 R38 42 060 183 0Z RESISTOR 18K 1 10W 596 T 2012 1 R47 43 060 221 1Z RESISTOR 220 1 10W 596 T 2012 10 R103 153 302 711 712 713 714 115 716 717 44 060 222 2Z CHIP RESISTOR 2 2K 1 10W 5 T 2012 n R28 113 201 219 408 720 721 45 060 223 3Z CHIP RESISTOR 22K 1 10W 5 T 2012 7 9 10 41 126 145 162 277 46 060 224 4Z CHIP RESISTOR 220 1 10W 5 T 2012 1 R156 47 060 229 997 CHIP RESISTOR 2 2 1 10W 596 T 2012 1 R15 48 060 272 7Z CHIP RESISTOR 2 7K 1 10W 5 T 2012 2 R17 151 49 060 273 87 CHIP RESISTOR 27K 1 10W 5
19. NTEK Model No 3394 Model No Drawring No Customer M 110 Plus Rev Date M 110 Plus Service Manual Created by Approved by Rev No For Stage Release Date Page I 53 INTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date Table of Contents Page Specifications 3 Test and Alignment Procedure 4 Block Diagram 14 Schematic Diagram 15 Printed Circuit Board 23 Channel Frequency Charts 25 Parts List 36 Semiconductor Voltage Chart 44 Semiconductor Lead Assignment and Block Diagram 49 Exploded View Parts List 5 Exploded View 53 Created by Approved by Rev No For Stage Release Date Page 2 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date SPECIFICATIONS GENERAL Surg cd 400 Ch AM FM 4W Frequency Range 26 315 to 28 105 MHz ET MH PLL Operating Temperature 109 55 susce tubo 13 2 V DC 15 nl 180 L X 35 H X 140 D mm MV QIN 0 850 2 RECEIVER Receiving System Dual Conversion Super Heterodyne Intermediate Frequency
20. R4251 AHK 7 854462 1 L104 164 320 318 7Z COIL IFT 273 359 2 301 302 165 320 380 2Y COIL IFT 27MHZ LKSZ73DO X000205 0 1 L4 166 320 576 3U IFT 10 7MHZ MAX RX 1 L103 167 320 580 6X COIL IFT 16 5MHZ 82PF COIL VCO 1 L501 168 320 584 0 COIL IFT 455KHZ B 1 L106 169 320 585 1Z COIL IFT 2 MHZ 20731 1 1 L3 170 321 0952 COIL IFT 27MHZ RX TRC 1 L102 171 420 705 1Z JACK DC TC38 078 01 1 J101 172 431 249 7 SW SLIDE SKS 2301U 1 SWA 173 431 253 0 SLIDE SWITCH SKS 2201U 1 SW3 174 450 417 3Y VR 10KC 15SK 161S 1 VR108 175 450 604 527 VR 50KA RS1610N 15KQB1 15A50K 1 VR102 Created by Approved by Rev No For Stage Release Date Page 42 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date 176 533 94P A PACKING ASS Y 1 177 533 9AW MA WIRE MIC ASS Y 1 178 427 045 6 WIRE 1007 AWG 26 7 0 16 YEL 0 06 MIC SW 0 5 0 5 179 427 046 7 WIRE 1007 AWG 26 7 0 16 GRN 0 06 MIC SW 0 5 0 5 130 533 94W MP WIRE MAIN PCB ASS Y 1 131 427 001 6 WIRE 1007 AWG 24 1 0 51 BLK 0 2 SW RX SW RX 1 5 1 5 132 427 003 8 WIRE 1007 AWG 24 1 0 51 RED 0 22 MAIN ON OFF1 VR102 1 5 0 5 133 427 004 9 WIRE 1007 AWG 24 1 0 51 ORG 0 11 MAIN GND VR108 1 5 0 5 134 427 005 0 WIRE 1007 AWG 24 1 0 51 YEL 0 11 MAIN VOL 1 VR102 1 5 0 5 135 427 006 1 WIRE 1007 AWG 24 1 0 51 GRN 0 11 MAIN GND VR108 1 5 0 5 136 427 007 2 WIRE 1007 AWG 24 1 0 51 BLU 0 11 MAIN GND VR102 1 5 0 5 137 427 008
21. USCOATI NG 3 SPK MTG 6 891 590 CUSHION 25X25XT5 RUBB SPO BLK STI 1 UP COVER amp PCB 7 901 226 FELT amp 65XTO 3 FELT BLK 1 8 905 505 FELT 10X130XT0 5 FELT STIC 4 9 611 095 MACHINE SCREW FH 2 6X5 ZN PLAT 4 ESC MAI N BODY MTG 10 621 131 TAPPI NG SCREW BH 2 6X6 2S ZN PLAT 2 ESC SUB 11 801 820 E S C ABS 94HB BLACK COLOR 1 12 814 552 WINDOW ACRYL CLEAR 1 13 826 143 KNOB VOL ABS 94HB BLK 2 14 826 459 KNOB ABS 94HB BLK 2 15 896 482 KEY PAD SILICONE RUBBER GRAY CO 1 16 907 562 TAPE WINDOW 3M 9448HK 0 16 1 17 613 332 SCREW BH 3X10 ZN PLAT 3 IC LTR 2 18 623 265 TAPPI NG SCREW BH 3X6 2S ZN PLAT 4 MAIN PCB 4 19 651 024 NUT SS41 M3 1S ZN PLAT 3 IC LTR 2 20 662 305 WASHER SPRING M3 ZN PLAT 3 IC LTR 2 21 702 425 C MAIN BODY EGI US COATING T1 0 1 22 732 560 HOLDER ANT SPTE TO 3 1 23 750 039 A CORD STOPPER P P BLK 1 24 771 530 SHIELD PLATE SPTE TO 3 1 25 771 710 A SHIELD PLATE SPTE TO 3 1 26 772 594 SHIELD PLATE TIN PLATE TO 4 1 27 853 105 BUSHING NYLON66 GLASS 1 FOR TR 28 901 794 A FELT 8X45XT0 3 FELT STI CCALANA 1 29 905 685 A INSULATION PLATE INSULATION PAPER 0 25 1 30 95B 009 E NAME LABEL POLYESTER 40 X 27 1 31 420 128 47 SPEAKER NP 250 2 8 OHM 2W 66MM 1 SPK 32 251 027 7X LED LAMP LTL 1CHG GREEN 1 LED1 33 251 052 9Z LED LAMP LTL 16KE RED 5V 100MW 1 LED2 34 252 016 2 LED DISPLAY LTD 482LLC GRN 1 LCD1 35 436 059 7Z SW TACT 11
22. is 16 270 16 90625 MHz CH 1 to 16 710 17 29625 MHz CH 40 as the first local oscillator injected through the buffer AMP Q411 into the first fed balanced mixer Q105 Q106 Created by Approved by Rev No For Stage Release Date Page 16 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date 2 BASIC SYNTHESIZER SCHEME The crystal frequency 10 240 2 is divided by 1800 times to make 2 5 KHz which is fed to one side of the phase detector The VCO output is divided by a programmable divider and fed to other side of the phase detector Pin 11 of IC6 The feedback loop is closed by passing the phase detector output through an active low pass filter and using the output to control the VCO frequency through varicap diode D402 Under locked conditions both of phase detector input signal must be indential at 2 5 KHz The VCO frequency is then given by FVCO N 0 0025 MHz or FVCO 0 0025xN MHz Since is an integer the VCO frequency can be stepped up with 2 5 KHz increments By suitable choice of N the desired output frequency can be obtained Channel 1 Channel 40 Function N FVCO N FVCO Transmit 5393 13 4825 5481 13 7025 EU Receive 6508 16 2700 6684 16 7100 Transmit 5520 25 13 800625 5598 25 13 995625 UK Receive 6762 50 16 90625 6918 5 17 29625 SEE TABLE FOR OTHER CHANNELS Created by Approved by Rev No
23. 128 4Z SPEAKER NP 250 2 8 2W 66MM 1 SPK 3 533 94 ESCUTCHEON ASS Y 1 4 251 027 7X LED LAMP LTL 1CHG GREEN 1 LED1 5 251 052 9Z LED LAMP LTL 16KE RED 5V 100MW 1 LED2 6 252 016 2 LED DISPLAY LTD 482LLC GRN 1 LCD1 7 436 059 7Z SWTACT TM115AP 2 SW1 2 8 533 94 FRONT BODY ASS Y 1 9 131 510 9X DISK CERAMIC 150PF NPO K96 50V 1 C335 10 133 311 0 DISK CERAMIC 330PF NPO331K 50V 1 C339 11 202 066 2 TRANSISTOR KTB1367 1 Q214 12 204 010 1 TRANSISTOR 25 2078 1 Q304 13 221 889 8 AUDIO POWER AMPLIFIEUTC TDA2003 V TO 220 5 1 104 14 421 046 7 CONNECTOR CH 239 A SW 1229 1 J103 15 421 559 CONNECTOR SCN 16 4 PCB R 1 CON1 16 440 020 4 0 1T 15X13 MICA FOR TR 1 MICA 17 504 734 2 POWER ASS Y UL 1015 20 150MM FUSE HOLDER 1 18 509 110 6 5T SPRING COIL ASS6 5T3 4X 55 M9D3 7X6 1 L314 19 310 809 1 COIL SPRING 3 4X0 55X6 5T R 1 20 321 0532 CORE 1108 KA 058 M9DTH3 7X6 1 21 533 94L PA LCD PCB ASS Y 1 22 533 94M A MIC ASS Y 1 23 130 A17 6Y CHIP CERAMIC 0 001UF GRM40 X7R102K 50V PT 1 C44 24 420 205 9Y CONDENSER KUCA023 010010 1 C MIC 25 420 349 6 CORD CURLED 3CON 1SH 300MM BLK 1 MIC CORD 26 421 038 0 CONNECTOR PLUG SW 1461 1 CON2 27 432 058 3Y PUSH SWITCH SKPS 2210C 1 SW102 Created by Approved by Rev No For Stage Release Date Page 36 53 NTEK Model No 3394 Customer Drawring No Rev Date M 110 Plus No Part No Part name amp
24. 2 055 AM FM 48 26 635 FM 9 27 065 AM FM 49 26 645 FM 10 27 075 50 26 655 11 27 085 51 26 665 FM 12 27 105 AM FM 52 26 675 13 27 115 AM FM 53 26 685 14 27 125 54 26 695 15 27 135 AM FM 55 26 705 FM 16 27 155 FM 56 26 715 FM 17 27 165 FM 57 26 725 FM 18 27 175 FM 58 26 735 FM 19 27 185 FM 59 26 745 FM 20 27 205 FM 60 26 755 FM 21 27 215 61 26 765 22 27 225 62 26 775 23 27 255 63 26 785 24 27 235 64 26 795 25 27 245 65 26 805 FM 26 27 265 FM 66 26 815 FM 27 27 275 67 26 825 28 27 285 68 26 835 FM 29 27 295 69 26 845 30 27 305 70 26 855 FM 31 27 315 71 26 865 FM 32 2 325 FM 72 26 875 33 27 335 73 26 885 34 27 345 74 26 895 35 27 955 FM 75 26 905 FM 36 27 365 FM 76 26 915 FM 37 2 375 FM 77 26 925 38 2 385 FM 78 26 935 FM 39 27 395 FM 79 26 945 40 27 405 80 26 955 Created by Approved by Rev No For Stage Release Date Page 28 33 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date BAND 04 GERMANY 40CH FM 4W 12CH AM 1W CH Frequency MHz Modulation Frequency MHz Modulation 1 26 965 FM 21 27 215 FM 2 26 975 FM 22 27 225 FM 3 26 985 FM 23 27 255 FM 4 27 005 AM FM 24 27 235
25. 3 WIRE 1007 AWG 24 1 0 51 VIO 0 11 MAIN SQ VR108 1 5 0 5 138 427 009 4 WIRE 1007 AWG 24 1 0 51 GRY 0 13 MAIN VOL2 VR102 1 5 0 5 139 427 010 4 WIRE 1007 AWG 24 1 0 51 WHT 0 15 MAIN ON OFF2 VR102 1 5 0 5 140 427 045 6 WIRE 1007 AWG 26 7 0 16 YEL 0 15 MAIN PCB SPK 1 5 0 5 141 427 046 7 WIRE 1007 AWG 26 7 0 16 GRN 0 15 MAIN PCB SPK 1 5 0 5 Created by Approved by Rev No For Stage Release Date Page 43 39 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date VOLTAGE CHART TRANSISTOR KTA1504 4 3 4 3 Q2 4 5 4 5 KTA1504 2 5 2 5 4 3 4 3 4 5 Q3 4 5 STC2412 9 9 KTC3880 1 5 1 5 1 0 8 Q4 5 5 108 0 STC2412 11 11 2412 6 2 5 6 5 6 0 7 05 0 0 0109 0 KRC104 0 0 KRC104 0 5 5 5 4 5 0110 0 4 KTC3880 3 3 0 9 Q111 0 KTC3880 7 0 7 Q9 Q112 0 KRC104 STC2412 0 5 5 6 0 4 0 0 0 0 0 0 0 0 4 0 0 0 0 2 0 0 0 0 1 6 0 0 0 O m ne Go D m O mi oO ti S e m wa w S o Io Boo Q6 5 2412 Q8 STC2412 c O m 4 0 0 0 0 0 0 0 0 4 O m O m 0114 STC2412 0115 0 2412 0 0 0102 0 0117 6 KTK211 0 SRA2205 0 0 9 Q104 0 Q202 0 STC2412 0 KRC104 0 0 5 Created by Approved by Rev No For Stage Release Date
26. 31 089 7Y CHIP CERAMIC 1UF GRMAO Y5V105Z 16V 1 C57 78 131 107 9Y CHIP CERAMIC 120PF GRM40 COG121J 50V 1 C325 79 131 529 7 CHIP CERAMIC 150PF GRM40 151 50V PT 1 C317 80 131 816 6Y CHIP CERAMIC 18PF GRM40 COG180J 50V PT 1 C51 81 132 012 1Y CHIP CERAMIC 20PF GRM40 COG200J 50V PT 2 C16 118 82 132 216 9Y CHIP CERAMIC 22PF GRM40 COG220J 50V PT 1 C413 83 132 220 2Y CHIP CERAMIC 220PF GRM40 COG221J 50V PT 3 C313 324 338 84 132 710 8Y CHIP CERAMIC 270PF 40 COG271J 50V PT 1 C412 85 132 714 2 CHIP CERAMIC 2 GRM40 COG270J 50V PT 2 C117 254 86 133 339 2Y CHIP CERAMIC 330PF GRM40 COG331J 50V PT 2 C327 334 87 133 611 7Y CHIP CERAMIC 36PF 40 COG360J 50V 1 C421 88 133 925 1Y CHIP CERAMIC 390PF GRM40 COG391J 50V PT 1 C315 89 133 932 7Y CHIP CERAMIC GRM40 COG390J 50V PT 3 C301 303A 428 90 134 719 7Y CHIP CERAMIC 0 0047UF GRM40 X7R472K 50V PT 1 C146 91 134 722 1Y CHIP CERAMIC 4TPF GRM40 COGA470J 50V PT 3 C52 326 328 92 134 761 4 CHIP CERAMIC 470PF GRM40 COGA471J 50V PT 1 C333 93 135 613 9Y CHIP CERAMIC 56PF GRM40 COG560J 50V 4 C41 101 255 337 94 136 005 5Y CHIP CERAMIC GRM40 COGO060D 50V PT 2 422 426 95 136 811 6Y CHIP CERAMIC 680PF GRM40 COG681J 50V PT 2 C3 457 96 136 816 5Y CHIP CERAMIC 68PF 40 COG680J 50V PT 2 C21 318 97 138 210 3Y CHIP CERAMIC 82PF GRM40 COG820J 50V PT 3 C307 331 447 Created by Approved by Rev No For St
27. 3M50V 794 1 C201 140 131 510 9X DISK CERAMIC 150PF NPO K 50V 1 C321 141 172 015 6W TRIMMER 20PF CVN620 1 CT201 142 204 016 7 TRANSISTOR 25 2314 1 Q303 143 241 004 3X DIODE ZENER 1N5237BST 1 DZ201 144 241 046 17 DIODE ZENER 1N5231B 5 1V1 2W 1 DZ1 145 241 263 0 DIODE ZENER 1N5232BST 1 DZ401 146 245 015 3X DIODE RECTIFIER 1N4004 2 D202 531 147 260 485 5V CRYSTAL HC49U 10 240M 30 32P FUND 1 X901 148 263 485 5 CRYSTAL OSCILLATOR 32 768K 10 20PPM 12 5PF 1 X101 Created by Approved by Rev No For Stage Release Date Page 41 53 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date No Part No Part name amp Description Q ty Ref 149 270 007 OW FILTER CERAMIC LTW455HT 1 CF1 150 271 030 52 FILTER CRYSTAL 49 10 695M 1 XF101 151 300 136 3W TRANSFORMER LE119 H019 1 CH501 152 300 159 47 TRANSFORMER MOD 24 1 T201 153 310 022 6 COIL RF CHOKE 10UH CORE 1 L601 154 310 291 227 COIL AXIAL 6 8UH TCEC 6R8K 2 L1 306 155 310 296 7 COIL SPRING 6X0 8X5 5T R 0 225UH 1 L308 156 310 297 8 COIL SPRING 2 5X0 8X7T R 0 11UH 1 L304 157 310 301 8 COIL CHOKE 6UH BOBBIN CORE 1 L201 158 310 316 6 COIL AXIAL 0 47 UH LALOSTBRA7K 1 L2 159 310 347 0Z SPRING 5 2X0 7X7T R 1 L313 160 310 407 1 COIL SPRING 5X0 6X13 5T R 1 L307 161 310 751 1 COIL SPRING 4X0 5X7T R 1 L311 162 310 811 2 COIL SPRING 3 4X0 55X8 5T R 1 L312 163 320 276 2 IFT DET
28. 5 AM FM 20 27 205 70 26 635 AM FM 21 27 215 71 26 625 AM FM 22 2 225 AM FM 72 26 615 23 27 255 73 26 605 AM FM 24 2 235 AM FM 74 26 585 AM FM 25 27 245 75 26 575 AM FM 26 2 265 AM FM 76 26 565 AM FM 27 27 275 77 26 555 AM FM 28 2 285 AM FM 78 26 535 AM FM 29 2 295 AM FM 79 26 525 AM FM 30 27 305 80 26 515 FM 31 27 315 81 26 505 32 2 325 AM FM 82 26 495 AM FM 33 2 335 AM FM 83 26 485 AM FM 34 2 345 AM FM 84 26 475 AM FM 35 27 355 85 26 465 AM FM 36 2 365 AM FM 86 26 455 AM FM 37 27 375 AM FM 87 26 445 AM FM 38 2 385 AM FM 88 26 435 AM FM 39 2 395 AM FM 89 26 425 AM FM 40 27 405 90 26 415 41 26 955 91 26 405 42 26 945 92 26 395 43 26 935 93 26 385 AM FM 44 26 925 AM FM 94 26 375 AM FM 45 26 915 AM FM 95 26 365 AM FM 46 26 905 AM FM 96 26 345 AM FM 47 26 895 AM FM 97 26 335 AM FM 48 26 885 AM FM 98 26 355 AM FM 49 26 875 AM FM 99 26 325 AM FM 50 26 865 AM FM 00 26 315 AM FM Created by Approved by Rev No For Stage Release Date Page 35 ah 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date PARTS LIST No Part No Part name amp Description Q ty Ref 1 533 94 COVER ASS Y 1 2 420
29. 6 60 5459 13 6475 30 27 305 6644 16 61 5461 13 6525 31 27 315 6648 16 62 5463 13 6575 32 27 325 6652 16 63 5465 13 6625 33 27 335 6656 16 64 5467 13 6675 34 27 345 6660 16 65 5469 13 6725 35 27 355 6664 16 66 5471 13 6775 36 27 365 6668 16 67 5473 13 6825 Created by Approved by Rev No For Stage Release Date Page 19 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date 37 27 375 6672 16 68 5475 13 6875 38 27 385 6676 16 69 5477 13 6925 39 27 395 6680 16 70 5479 13 6975 40 27 405 6684 16 71 5481 13 7025 DIVIDE RATIO VCO RX TX FREQUENCIES FOR EACH CHANNEL OF UK Frequencies RX TX MHz Frequencies _ Frequencies 1 27 60125 6546 5 16 90625 5412 25 13 800625 2 27 61125 6766 5 16 91625 5522 25 13 805625 3 27 62125 6770 5 16 92625 5524 25 13 810625 4 27 63125 6774 5 16 93625 5526 25 13 815625 5 27 64125 6778 5 16 94625 5528 25 13 820625 6 27 65125 6782 5 16 95625 5530 25 13 825625 7 27 66125 6786 5 16 96625 5532 25 13 830625 8 27 67125 6790 5 16 67625 5534 25 13 835625 9 27 68125 6794 5 16 98625 5536 25 13 840625 10 27 69125 6798 5 16 99625 5538 25 13 845625 11 27 70125 6802 5 17 00625 5540 25 13 850625 12 27 71125 6806 5 17 01625 5542 25 13 855625 13 27 72125 6810 5 17 02625 5544 25 13 860625 14 27 73125 6814 5 17 03625 5546 25 13 865625 15 27 74125 6818 5 17 04625 5548 25 13 870625 16 2
30. 7 Port 2 544 1056 Byte 16 32 Kbyte Register File ROM P30 P34 4 1 0 Port3 PortS 4 P50 P5 7 Created by Approved by Rev No For Stage Release Date Page 18 53 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date DIVIDE RATIO VCO RX TX FREQUENCIES FOR EACH CHANNEL OF EU Channels Frequencies RX TX MHz Frequencies Frequencies 1 26 965 6508 16 27 5393 13 4825 2 26 975 6512 16 28 5395 13 4875 3 26 985 6516 16 29 5397 13 4925 4 27 005 6524 16 31 5401 13 5025 5 27 015 6528 16 32 5403 13 5075 6 27 025 6532 16 33 5405 13 5125 7 27 035 6536 16 34 5407 13 5175 8 27 055 6544 16 36 5411 13 5275 9 27 065 6548 16 37 5413 13 5325 10 27 075 6552 16 38 5415 13 5375 11 27 085 6505 16 39 5417 13 5425 12 27 105 6512 16 41 5421 13 5525 13 27 115 6516 16 42 5423 13 5575 14 27 125 6524 16 43 5425 13 5626 15 27 135 6528 16 44 5427 13 5675 16 27 155 6532 16 46 5431 13 5775 17 27 165 6536 16 47 5433 13 5825 18 27 175 6544 16 48 5435 13 5875 19 27 185 6548 16 49 5437 13 5925 20 27 205 6552 16 51 5441 13 6025 21 27 215 6608 16 52 5443 13 6075 22 27 225 6612 16 53 5445 13 6125 23 27 255 6624 16 56 5451 13 6275 24 27 235 6616 16 54 5447 13 6175 25 27 245 6620 16 55 5449 13 6225 26 27 265 6628 16 57 5453 13 6325 27 27 275 6632 16 58 5455 13 6375 28 27 285 6636 16 59 5457 14 6425 29 27 295 6640 1
31. 7 75125 6822 5 17 05625 5550 25 13 875625 17 27 76125 6826 5 17 06625 5552 25 13 880625 18 27 77125 6830 5 17 07625 5554 25 13 885625 19 27 78125 6834 5 17 08625 5556 25 13 890625 20 27 79125 6838 5 17 09625 5558 25 13 895625 21 27 80125 6842 5 17 10625 5560 25 13 900625 22 27 81125 6846 5 17 11625 5562 25 13 905625 23 27 82125 6850 5 17 12625 5564 25 13 910625 24 27 83125 6854 5 17 13625 5566 25 13 915625 25 27 84125 6858 5 17 14625 5568 25 13 920625 26 27 85125 6861 5 17 15625 5570 25 13 925625 27 27 86125 6866 5 17 16625 5572 25 13 930625 28 27 87125 6870 5 17 17625 5574 25 13 935625 29 27 88125 6874 5 17 18625 5576 25 13 940625 30 27 89125 6878 5 17 19625 5578 25 13 945625 Created by Approved by Rev No For Stage Release Date Page 20 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date 31 27 90125 6882 5 17 20625 5580 25 13 950625 32 27 91125 6886 5 17 21625 5582 25 13 955625 33 27 92125 6890 5 17 22625 5584 25 13 960625 34 27 93125 6844 5 17 23625 5586 25 13 965625 35 27 94125 6898 5 17 24625 5588 25 13 970625 36 27 95125 6902 5 17 25625 5590 25 13 975625 37 27 96125 6906 5 17 26625 5592 25 13 980625 38 27 97125 6910 5 17 27625 5594 25 13 985625 39 27 98125 6914 5 17 28625 5596 25 13 990625 40 27 99125 6918 5 17 29625 5598 25 13 995625 3 DESCRIPTIONS OF EACH BLOCK A Introduction The synthesizer is implemented with the following Components
32. FILM RESISTOR 47 1 2W 5 ST MINI 1 R312 Created by Approved by Rev No For Stage Release Date Page 40 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date No Part No Part name amp Description Q ty Ref 122 061 205 2 RESISTOR SEMIFIXED 2KB 805 8DIA 2 RV201 401 123 061 206 3 RESISTOR SEMIFIXED 20KB PC805M 8DIA 1 RV1 124 061 508 8 RESISTOR SEMIFIXED 50KB PC805M 8DIA 1 RV2 125 098 201 2 THERMISTOR DISK 200 OHM 15 KC5B120L 1 TH102 126 098 501 3 THERMISTOR DISK 500 KC5C150L 2 TH1 2 127 100 101 9 ELECT CAPACITOR 0 1UF 50V 20 5X11 2 5 2 C13 433 128 100 405 4 ELECT CAPACITOR 0 47UF 50V 20 5X11 2 5 1 C2 129 101 007 3T ELECT CAPACITOR 1UF 50 20 4 7 2 5PT 3 C12 448 452 130 101 012 7 ELECT CAPACITOR 10UF 16V 20 5X11 2 5 14 C9 23 32 33 55 134 206 232 235 238 239 431 436 461 131 101 117 9 ELECT CAPACITOR 10000 16V 20 10X16 3 C11 15 213 132 101 119 1 ELECT CAPACITOR 100UF 16V 20 6 3X7 2 C228 237 133 102 207 2 ELECT CAPACITOR 2 2UF 50V2096 5X11 2 5 1 C24 134 102 210 4 ELECT CAPACITOR 22UF 16 20 5X11 2 5 1 C429 135 102 299 5 ELECT CAPACITOR 220UF 16V 20 6 3X11 4 C14 212 216 233 136 103 313 9T ELECT CAPACITOR 33UF 16V2096 5X11 2 5PT 1 C48 137 103 339 3 ELECT CAPACITOR 3 3UF 50V 20 4X7 2 5PT 2 C107 108 138 104 771 4T ELECT CAPACITOR 47UF 16 20 5X11 2 5 6 C1 18 56 58 211 437 139 130 227 9R DISK CERAMIC 0 022UF DD350257Y5V22
33. FM 5 27 015 AM FM 25 27 245 6 27 025 26 27 265 7 27 035 27 27 275 8 27 055 28 27 285 FM 9 27 065 AM FM 29 27 295 FM 10 27 075 AM FM 30 27 305 FM 11 27 085 AM FM 31 27 315 FM 12 27 105 AM FM 32 27 325 FM 13 27 115 AM FM 33 27 335 14 27 125 34 27 345 15 27 135 AM FM 35 27 355 16 27 155 36 27 365 17 27 165 37 27 375 18 27 175 FM 38 27 385 19 27 185 39 27 395 20 27 205 40 27 405 Created by Approved by Rev No For Stage Release Date Page 29 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date BAND 05 EUROPE 40CH FM 4W 40CH AM 1W CH Frequency MHz Modulation CH Frequency MHz Modulation 1 26 965 AM FM 21 27 215 2 26 975 22 27 225 3 26 985 AM FM 23 2 255 AM FM 4 27 005 24 27 235 5 27 015 AM FM 25 27 245 6 27 025 26 27 265 7 27 035 27 27 215 AM FM 8 27 055 AM FM 28 27 285 AM FM 9 27 065 29 27 295 10 27 075 30 27 305 11 27 085 31 27 315 12 27 105 32 27 325 13 27 115 33 2 335 AM FM 14 2 125 AM FM 34 2 345 AM FM 15 27 135 35 27 355
34. Page 44 53 8 m O mi O m O m cgJooo NO NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date TRANSISTOR Q205 KTA1504 Q304 0 25 2078 0 t N e o Q207 STC2412 Q406 101 8 0 0 7 3 1 00 41 0208 51504 Q407 0 101 0 0 m 00 oo ON oo wa 408 KTC3880 7 uoce M M Q211 STC2412 KTC3880 4 4 0411 0 0 NES Q212 KRC104 0 Q412 KTC3880 3 3 3 3 0 7 0 7 Q213 KTA1504 walm Q214 KTB1367 0215 5 2412 nN 4 4 0301 KTC3880 M oo Q302 KTC3880 oO a oo 0303 25 2314 6 Created by Approved by Rev No For Stage Release Date Page 45 53 Model No 3394 Customer 6 BU2630 M 110 Plus Drawring No Rev Date 4 24LLCO2A
35. T 2012 3 R4 154 208 50 060 332 8Z CHIP RESISTOR 3 3K 1 10W 596 T 2012 2 R202 232 51 060 333 9Z CHIP RESISTOR 33K 1 10W 5 T 2012 6 R43 147 149 181 414 436 52 060 392 2Z CHIP RESISTOR 3 9K 1 10W 5 T 2012 1 R278 Created by Approved by Rev No For Stage Release Date Page 37 53 NTEK Model No 3394 Customer No 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 060 393 3Z 060 470 9Z 060 471 024 060 472 142 060 473 224 060 474 324 060 475 442 060 561 824 060 563 024 060 681 324 060 682 472 060 683 524 060 822 472 130 A13 2Y 130 A17 6Y 130 170 0Y 130 172 2Y 130 263 12 130 314 5Y CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC M 110 Plus Part name amp Description 39K 1 10W 596 T 2012 47 1 10W 5 T 2012 470 1 10W 5 T 2012 4 1 10W 5 T 2012 1 10W 5 T 2012 470 1 10W 5 T 2012 1 10W 5 T 2012 560 1 10W 5 T 2012 56K 1 10W 5 T 2012 680 1 10W 5 T 2012 6 8K 1 10W 5 T 2012 68K 1 10W 5 T 2012 8 2K 1 10W 5 T 2012 0 0012UF GRM40 X7R122K 50V
36. age Release Date Page 39 53 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date No Part No Part name amp Description Q ty Ref 98 202 085 9 TRANSISTOR KRC101S 3 Q10 406 407 99 202 095 8Z TRANSISTOR KRC104SND 7 Q5 9 11 109 202 209 212 100 202 106 5 TRANSISTOR KTA1504SY 5 Q1 2 205 208 213 101 202 112 0Y TRANSISTOR STC2412G 12 Q3 4 6 8 104 108 112 114 115 207 211 215 102 202 153 7 TRANSISTOR KTC3880SY 8 Q107 111 110 301 302 408 411 412 103 202 155 9Y TRANSISTOR BRT SRA2205S 1 Q117 104 202 183 4 FET KTK211GR 3 Q102 105 106 105 221 460 5 I C PLL DUAL BU2630F 1 IC6 106 221 854 8 I C EEPROM 24LLC02 A 1 IC4 107 221 885 4 IC MCU OTP EFHP5830AD 1 IC3 108 222 018 5 1 KIA324F EL 1 2 109 223 116 5 L C FM IF MC3361DR2 1 IC1 110 242 024 6 DIODE VARIVAP CHIP KDV251S 2 D402 403 111 243 019 7Z DIODE 1N4148 14 D2 3 4 5 6 8 101 102 103 104 203 407 413 414 112 243 049 4 DIODE SI CHIP KDS226 1 D111 113 4 1 200 P C B ASS Y 197 X 156 X 1 6T XPC 94HB 1 0 1 114 411 391 B P C B MAIN 166 X 128 X 1 6T XPC 94HB 1 0 1 115 411 839 B P C B LCD 130 X 30 1 6 XPC 94HB 1 0 1 533 94M 116 MP MANUAL ASS Y 1 117 019 479 8727 METAL OXIDE RESISTOR4 7 2W 596 ST 1 R207 118 030 100 6Z FILM RESISTOR 10 1 2W 5 ST MINI 1 R225 119 030 101 77 FILM RESISTOR 100 1 2W 596 ST MINI 2 24 178 120 030 229 0Z FILM RESISTOR 2 2 1 2W5 ST MINI 1 R314 121 030 479 3Z
37. button POLAND 40CH AM FM 4W POLISH FREQUENCIES 08 PL 5KHz SPECIAL BAND A 100CH AM FM 4W 09 A SPECIAL BAND B 100CH AM FM 4W 00 B Created by Approved by Rev No For Stage Release Date Page 25 23 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date BAND 01 ITALY 40CH AM FM 4W CH Frequency MHz Modulation Frequency MHz Modulation 1 26 965 AM FM 21 27 215 AM FM 2 26 975 AM FM 22 27 225 AM FM 3 26 985 AM FM 23 27 255 AM FM 4 27 005 AM FM 24 27 235 AM FM 5 27 015 AM FM 25 27 245 6 27 025 26 27 265 7 27 035 27 27 275 8 27 055 28 27 285 9 27 065 29 27 295 10 27 075 30 27 305 AM FM 11 27 085 AM FM 31 27 315 AM FM 12 27 105 AM FM 32 27 325 AM FM 13 27 115 AM FM 33 27 335 AM FM 14 27 125 AM FM 34 27 345 AM FM 15 27 135 35 27 355 AM FM 16 27 155 AM FM 36 27 365 AM FM 17 27 165 AM FM 37 27 375 AM FM 18 27 175 AM FM 38 27 385 AM FM 19 27 185 AM FM 39 27 395 AM FM 20 27 205 AM FM 40 27 405 AM FM Created by Approved by Rev No For Stage Release Date Page 26 53 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date
38. coming 13 MHz signals G Switching of tuning capacitor in VCO The VCO circuit must tune with a wide rang of frequencies 13 4825 13 7025 MHz EU 13 800625 13 995625 MHz UK for transmitter and 16 270 16 710 MHz EU 16 90625 17 29625 MHz UK for receiver To comply above rang of VCO the tuning capacitance should switched for transmission or reception H Receiver local oscillator outputs First Mixer The secondary output signals is injected to the sources of 1 mixer Q105 Q106 in the 1 IF mixer section Second Mixer The output of 10 24 MHz oscillator circuit with X 1 is injected into the IF IC internally Incoming IF signal and 10 24 MHz are mixed inside the IF IC to extract 2 IF signal 455 KHz FM AM audio signals recovered with the way of quadrature detector AM signals are recovered with envelope detector 4 FREQUENCY STABILITY LET Fo Crystal oscillator frequency Fr Phase detector reference frequency Fvco VCO frequency Ft Transmit frequency Then Fr Fo 1800 And under locked conditions Fr 2 Fvco N WHERE is the programmable divider divide ratio THEN Fr From which it can be seen the percentage error in Ft is the same as the percentage error in Fo The stability of the crystal oscillator is determined primarily by the crystal itself and having lesser deviation by the active and passive components of the oscillator The choice of crystal and component is such that the
39. e BAND 08 POLAND 40CH FM 4W POLISH FREQUENCIES 5KHz CH Frequency MHz Modulation CH Frequency MHz Modulation 1 26 960 AM FM 21 27 210 AM FM 2 26 970 AM FM 22 27 220 3 26 980 AM FM 23 27 250 4 27 000 24 27 230 5 27 010 AM FM 25 27 240 6 27 020 26 27 260 7 27 030 27 27 270 8 27 050 28 27 280 9 27 060 29 27 290 10 27 070 30 27 300 11 27 080 31 27 310 12 27 100 32 27 320 AM FM 13 2 110 AM FM 33 2 330 AM FM 14 27 120 AM FM 34 2 340 AM FM 15 27 130 35 27 350 16 27 150 AM FM 36 2 360 AM FM 17 27 160 37 27 370 FM 18 27 170 38 27 380 AM FM 19 2 180 AM FM 39 27 390 20 27 200 40 27 400 Created by Approved by Rev No For Stage Release Date Page 33 4 53 BAND 09 SPECIAL BAND A 100CH AM FM 4W CH Frequency MHz Modulation CH Frequency MHz Modulation 1 26 965 AM FM 51 2 535 AM FM 2 26 975 AM FM 52 2 555 AM FM
40. hannel where no signal are present or wait until signals cease on your channel Then rotate the squelch control knob clockwise to a point where the background noise disappears Note When the squelch is set properly the speaker will remain quiet until a signal is received In order to receive weak signals do not set the squelch too high Adjust the volume to the desired listening level To Transmit Press and hold the push to talk button Speak slowly and clearly in a normal voice two to three inches from the microphone A buit in modulation control circuit will automatically adjust the microphone input level There is no need to speak loudly To Receive Release the push to talk button Created by Approved by Rev No For Stage Release Date Page 4 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date THEORY OF OPERATIONS TRANSMITTER A RF Amplification The output of double AMP Q301 is fed through tuning IFT L301 and L302 to the base of pre driver AMP Q302 The output is then supplied to RF driver AMP Q303 The output of Q303 is supplied with tuning circuit L304 and C317 C315 C21 and goes to the base of final RF AMP Q304 The output of Q304 is supplied to the antenna through L C tuning circuit B Circuit for Suppression of Spurious Radiation The tuning circuit between the output of final 0304 and antenna 4 stage PHI network 1308 C324
41. onic Connect RF power meter At no modulation check With dummy load to compare the level o MIC Transmit spectrum analyzer fundamental Volume optional through coupler 40 dB frequency to the level Squelch optional Attenuator to EXT ANT of harmonic CH selector 19 jack on the set frequency 2 CH9 OFF Figure 4 Suppression of the 2 harmonic frequency level must be lower than 60 dB Check for the other channels Frequency check Connect dummy load CT201 Be sure that the MIC Transmit and frequency counter indication of the Volume optional though coupler to RF transmitter frequency 3 Squelch optional powermeter Connect RF is 27 185MHz 300Hz CH selector 19 powermeter to EXT ANT on the frequency CH9 OFF jack on the set counter Figure 5 Created by Approved by Rev No For Stage Release Date Page 9 33 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date TX power level Connect dummy load RV202 Adjust until the 5 bar adjustment and oscilloscope through appears on the Volume optional Coupler to RF channel display LCD 4 Squelch optional powermeter connect CH selector 1 audio generator to CH9 OFF microphone jack Figure 6 Figure 3 Created by Approved by Rev No For Stage Release Date Page 10 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date
42. oor connection on microphone connector e Defective push switch on microphone e Repair or replace e Repair or replace e Repair or replace speaker at all Defective internal speaker e Replace e Defective VR102 IC103 other components e Replace the defective components Measure all the voltage of IC102 with voltage Replace No noise on enan E speaker e Defective squelch circuit components RV102 VR101 16102 e Replace Squelch does not e Defective VR1 RV2 IC2 Replace the defective components work e Re adjust Created by Approved by Rev No For Stage Release Date Page 6 53 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date e Defective microphone e Replace e Poor audio output and defective modulation 2 dulati microphone amplifier components IC103 P e Defective microphone connector components Replace e Defective ALC circuit D413 D414 p e Replace the defective components nm does Defective RED wire fuse e Replace not won e Defective IC3 Q4 e Replace Channel selector does network e Defective IC3 SW1 2 e Replace EMG CH9 19 e Defective EMG SW e Replace does not work e Defective IC3 e Replace Created by Approved by Rev No For Stage Release Date Page 7 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date
43. required frequency stability is maintained over the required voltage and temperature rang Created by Approved by Rev No For Stage Release Date Page 22 33 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date Printed Circuit Board C233 445 Q214 RV1 3 4 m alz PLUS 1 51 MP EP AMI 5 00B 4A12 021 Sw 411391B pO dus Abe Created by Approved by Rev No For Stage Release Date Page 23 53 NTEK Model No 3394 Customer M 110 Plus Drawring No Rev Date C256 R276 C42 R27 Created by Approved by Rev No For Stage Release Date Page 24 53 NTEK Model No 3394 Drawring No Customer M 110 Plus Rev Date IW Qm 604360 3 PLUS rst MP asam Var i t LS Kx BANDS FREQUENCY TABLE Total no 10 bands are available as follows BAND BAND SPECIFICATION CODE ITALY 40CH AM FM 4W 01 ITALY 36CH AM FM 4W 02 12 GERMANY 80CH 4W 12CH 1W 03 D GERMANY 40CH FM 4W 12CH AM 1W 04 D2 EUROPE 40CH FM 4W 40CH AM 1W 05 EU CEPT 40CH FM 4W 06 EC ENGLAND 40CH FM 4W UK FREQUENCIES EC 40CH UK FM 4W CEPT 07 gt display UK amp CE using AM FM
44. y Rev No For Stage Release Date Page 13 53 EMG19 AMP RX BPF T t MIXER z 0105 0106 i z 2nd MIXER p F QUAD DET CF1 e 4 455KHz gt REG REG E REG REG B lt N x1 0 240MHz E TX CTLR IC3 B 0212 1 PLL 166 TX INH DOUBLER PRE DRIVE DRIVER _ 502 0303 CLOCK FM gt LPF Created by Approved by Rev No For Stage Release Date Page 14
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