TC-700Ex PLUS Service Manual 00
Contents
1. ae m 55 um 035 qu cus Y S ous ae it A fes i HE i Li 4 cef tsm p iwo 0 g oos gt S f K 2 5 cise Tose Tage f 253 Tas hee Bay iue b 5 v 19000 1058 gg 3 ze 20 wo d 88 lu ESOL lips i 1 nlcs mus 08 d Y Toone 041 4 n 2 3 on DE 88 211028 92 28 16 z TEMY 987 EE Faz y 2 Sts L E 2 n2. 71 700 PLUS UHF Schematic Diagram
3. 73 Specifications TC 700 Ex PLUS Service Manual General VHF 136 174 MHz Frequency Range UHF 420 470 MHz Channel Capacity 16 Channel Spacing 25 20 12 5 KHz Frequency Stability 2 5ppm Operating Voltage 7 4V Battery 1700 Li ion Battery Life 5 5 90 duty cycle About 14 Hours Operating Temperature 20 C 50 C Dimensions HxWxD with battery without antenna Weight with antenna 8 battery 426g Receiver Sensitivity 0 25 0 35uV Selectivity 70 60dB Intermodulation 65dB Spurious Response Rejection 70dB S N 45 40dB Rated Audio Power Output 0 5W Rated Audio Distortion lt 5 Transmitter RF Power Output 3W 0 5W Spurious and Harmonics 30dBm gt 1GHz Modulation Limiting 5 4 2 5 kHz FM Noise 45 40dB Modulation Dis
4. 70 700 PLUS VHF Schematic Diagram Baseband amp Amplifier SH HH
5. 66 700 PLUS UHF Board View Bottom Layer K J H G F E D C B A m 5 2 8 DEHE pA CE 208 p d i i t 1 a 3 1 8 5 T URS 20 2 2 02 7 1212 2 0103 67 700 PLUS Level Diagram Rx Section 120dBm 40948 113dBm 120dBm 101dBm 103dBm 05dBm 130mVmms 250mVmw 300mVans 100 IW ANT C251 C236 0228 BPF BPF 1020 203 IC204 1 408 IC202 IC404 sP 15 Css Q207 C230 Qui C487 1 1 6243 m B K501 Em 2nd Local 5 OdBm dBm RF center IF 49 95MHz AF k k of Each of the levels plotted from RF to the first IF is the level that can provide a 12dB SINAD for an SSG signal through a 470pFb coupling capacitor When AF ouput is adjusted to 1W adjust the frequency deviation of 1KHz AF level to 3KHz Wide 1 5KHz Narrow Transmit 12mVrms 60mVrms 150mVims 0 15 0 44 Vrms 0 8Vms 0 62 4w ANT 1C408 C312 C312 C
6. e en nn e emen nennen n nennen 60 62 Exploded View ATEX approved 63 Parts List ATEX approved Battery 63 700 Ex PLUS VHF PC Board View Layer 64 700 PLUS VHF PC Board View Bottom Layer 465 TC 700 PLUS UHF Board View Layer 66 700 Ex PLUS UHF PC Board View Bottom Layer 67 TC 700 Ex PLUS Level Diagram 68 TC 700 Ex PLUS Block Diagram 69 TC 700 PLUS VHF Schematic Diagram RF 70 TC 700 Ex PLUS VHF Schematic Diagram Baseband amp AF Amplifier 71 TC 700 Ex PLUS UHF Schematic Diagram RF 72 TC 700 Ex PLUS UHF Schematic Diagram Baseband amp AF Amplifier 73 Specifications
7. 74 700 PLUS Service Manual Manual Scope This manual is intended for use by experienced technicians familiar with similar types of communication equipment It contains all service information required for the equipment and is current as of the publication date HYT endeavors to achieve the accuracy and completeness of this manual but no warranty of accuracy or reliability is given All the specifications and design are subject to change without prior notice due to continuous technology development Changes which may occur after publication are highlighted by Revision History contained in Service Manual No part of this manual may be copied reproduced translated stored in a retrieval system distributed or transmitted in any form or by any means electronic or mechanical for any purpose without the express written permission of HYT Safety and General Information Any person using the radio must observe the standard safety regulations and read the certificate to prevent incorrect operation or abuse of the radio The following additional safety regulations must also be observed Unauthorized modification of the radio may result in termination of Ex protection Unauthorized service or repairs are inhibited Do not disassemble the ATEX approved intrinsically safe products The radio must not be opened in a hazardous area The battery must only be changed in a non hazardous area Additional or spare bat
8. 700 PLUS Service Manual _ apaykuq Gty Ref No Print No 673 3101051050000 Chip capacitor 0402 1UF K6 3SV 1 C491 674 3101051050000 capacitor 0402 1UFK6 3V_ 1 C495 690 3104074750030 Tantalum capacitor 0805 47UF M 10V 1 C150 696 3104074750030 Tantalum capacitor 0805 4 7UF 1 C487 699 3104071050010 Tantalum capacitor 0805 1UF M16v_ 1 C354 31 700 PLUS Service Manual Material Description Qty Ref No Print No 725 3001061020010 Chip resistor 0603 1KO 110 1 726 3001061020010 Chip resistor 0603 1 J 1 10 1 Chip resistor1206 2700 5 0 2 Chip resistor1206 2700 5 0 2 32 700 PLUS Service Manual TC 700 Ex PLUS UHF Parts List 1 MaterialNo Description Qty Ref Print No 6 3001050000000 Chip 40200 J1 16W 1 R233 3001050000000 Chipresistor0402 00 J1 16W 1 R254 9 3001050000000 Chip resistor 040209 J1 160W 1 R315 83 700 PLUS Service Manual No Material Description Qty Ref Print No 60 3001051030000 Chipresistor0402 10KO 7114 1 R336
9. PLL MAN 4 16 N RX AUDIO PROCESSOR TEV 1 ADR lt q VOX IER gt 40 AO346 v N NS V x RW 1 2080 L 3 6861ME A gt SE 1 Sw E cour v ANP MF Ist V MX ge AN 10104 SYSTEM qos 1002 f N Am 4 4 REOGF 40 xm FV lens 4 25 4 4 S V 41511 B IP umm 2 5 GAS C58 0570 059 MXj C peu CICSS 0355 d FV BV HCSB2 RV 10105 V4 NIN d C201 450K Zaw F aeo E 515 TIS P aw Aw 5 1007 4 d py 22 69 700 PLUS Schematic Diagram
10. 666 3101051040060 capacitor 040201UFK16 1 C609 669 3101051000020 Chip capacitor 0402 J 50 1 C335 45 700 PLUS Service Manual L Ho Material Ret No Print No 675 3101051050000 capacitor 0402 TUF K 63V 1 C496 T 690 3101060900010 Chip capacitor 0603 9PF B 50V 1 164 696 3001061020010 Chip resistor 0603 J1 10 1 699 3001061020010 Chipresistor0603 1 J1 10 1 4 46 700 PLUS Service Manual No Description Qty Ref Print No Chip fuse 0603 0 5 32 Chip resistor 1206 2700 5 0 2 Chip resistor 2512 0 33 0 1 2 47 700 PLUS Service Manual Ndiustment Description Adjust the radio by PC programming software or by manual adjustment In manual adjustment mode the adjustment method is shown as follows Refer to Software Specification for the manual adjustment mode Required Test Instrument Radio Communication Test Set 1 set Scanner 1 set 3A 10V Power Supply 1 set Digital Voltmeter 1 set Ammeter 1 set Adjustment Adjustment in user mode Firstly ground the SELF point turn on the radio by holding down TK for 2 seconds and then the radio enters reset mode with green LED flashing twice Turn the channel selector knob to th
11. is the registered trademark of Shenzhen HYT Science amp Technology Co Ltd 2007 HYT Co Ltd All Rights Reserved Free hotline 800 830 7020 www hyt com cn 813700EX00100 2007 01 20 SERVICE MANUAL INTRINSICALLY SAFE TWO WAY RADIO 700 700 PLUS Service Manual Contents 2 ATEX Approved Intrinsically Safe Radio Information 3 Radio 4 Software Specifications 6 Circuit 10 CPU 15 Parts List 1 T T 18 Adjustment Description 48 Troubleshooting ff A 53 Disassembly and Assembly 57 Exploded View Y 59 Parts List 2
12. 700 PLUS Service Manual Material Qty Ref Print No 38 700 PLUS Service Manual No Material Description Qty Ref Print No 62 3101054710010 capacitor 0402 470PF K 50 145 3101054710010 capacitor 0402 470PF K 50 133 i C148 3101054710010 Chip capacitor 0402 470PF K 50 39 700 PLUS Service Manual No MaterialNo Descrptin Qty 410 411 3101058200000 Chip capacitor 0402 82 J 50V 410 3101060300010 Chip capacitor 0603 50 411 3101060300010 Chip capacitor 0603 50 3101064590010 Chip capacitor 0603 4 5PF C 50 40 700 PLUS Service Manual Material Description Qty Ref Print No 448 3104071040010 Tantalum capacitor 0805 0 1UF M20V 1 C328 449 3104071050010 Tantalum capacitor 0805 1UF M 16V T 1 C327 450 3104071050010 Tantalum capacitor 0805 1UF M 16V T 1 C354 451 3104071050010 Tantalum capacitor 0805 1UF 16 1 C478 452 3104071050010 Tantalum capacitor 0805 1UF M 16V T 1 C479 453 3104071050010 Tantalum capacitor 0805 1UF 16 1 C630 746 454 3104071050010 Tantalum capacitor 0805 1UF M 16V T 1 C
13. 526 258 3101050400010 Chip capacitor 0402 4PF B50OV 1 C202 B2 23 700 PLUS Service Manual No Material Qty Ref No Print No 309 3101051020010 Chip capacitor 0402 1000PFK5 1 C546 T3K 310 3101051020010 Chip capacitor 0402 1000PFK5 1 C558 4 24 700 PLUS Service Manual No Material Description Qty Ref No Print No 361 3101052200010 Chip capacitor 0402 22 J 50 1 0471 362 3101052200010 Chip capacitor 0402 22PF 1 C472 25 700 PLUS Service Manual No Material Qty No Print No 413 3101054710010 Chip capacitor 0402 470PFK 50 1 C610 414 3101054720000 Chip capacitor 0402 4700PFK5 1 C485 26 700 PLUS Service Manual Material Description Qty Ref No Print No Trimmer capacitor 3 2 2 5 1 25mm Air core inductor E2 0 3 1 0 3TL Air core inductor E2 0 30 1 2 5TL Air core inductor E2 0 30 1 2 5TL Air core inductor E2 0 30 1 2 5TL Air core inductor E2 0 32 1 0 5TR Air core inductor E2 0 35 1 6 3TR 27 700 PLUS Service Manual No Material No Descripion Qty Ref No Print No Air core inductor
14. Amplifier The resulting AF signal from 1 204 enters baseband processing 1 408 The processed signal is then amplified by an AF power amplifier IC401 to drive the speaker Transmitter 1 and Signalling AF signal from the microphone is amplified and low pass filtered in IC402 before it enters baseband processing chip IC408 which also enters CTCSS CDCSS DTMF 2 Tone 5 Tone signalling generated by CPU The 1 408 processed mixing signal enters VCO for direct FM modulation see fig 5 2 Power Amplifier The transmit signal from VCO buffer amplifier Q111 is amplified by 0101 0102 The amplified signal is then amplified by the power amplifier Q103 and Q104 including a two stage FET amplifier to create 4 0W UHF 5 0W RF power see Fig 6 ANT AMP DRIVE AMP FINAL AMP ANT SW E 0101 102 _ 9103 _ 9104 D102 gt gt gt 0110 DET SW IC101 SWB C10 0107 0110 SW SW X p103 D104 S B i RX APC SW Fig 4 System 3 Antenna Switch and LPF Output signal from RF amplifier passes through low pass filter network a transmit receive switch circuit comprised of D102 D103 and D104 before it reaches the antenna terminal D103 and D104 is turned on conductive in transmit mode and off isolated in receive mode 700
15. other environments chemical industries refineries etc ATEX Dust Protection 120 IP64 T160 C T160 C Maximum temperature of device surface gt IP64 Protection against dust deposits gt 2D For use in Dust Zone 21 22 environments 700 PLUS Service Manual Oy 09 10 11 12 13 14 15 16 17 PTT Push to Talk Key Press and hold down the PTT key to transmit release it to receive SK1 Side Key 1 programmable SK2 Side Key 2 programmable Antenna Microphone Speaker TK Top Key programmable Channel Selector Knob Rotate the knob to select from channel 1 to 16 Radio On Off Volume Control Knob Rotate the knob clockwise to turn the radio on rotate the knob fully counter clockwise until a click is heard to turn the radio off Turn the knob clockwise to increase the volume or counter clockwise to decrease the volume LED Indicator Table below explains the functions of the LEDs and beeps Accessory Jack Battery Latch Belt Clip Accessory cover Battery Screw Electrode Piece 700 PLUS Service Manual Wired Cloning Source radio Turn the source radio on while The orange LED flashes twice holding do
16. 241 1 it pedum Pee 08 1 BE gons x X 1 4 E B 3195 Wo 8 gt ix 33K p3 pe mm 100 dewe 0100 pa 2 TJ a ER m m pu anam 2 1 x NEM gs ase T me D jus ES E 1 n LL 17 T ss is 1 Tes 2 lu 17 9 2 ge 2B 543 4 5 En Log BED bou Ps Ten ges w Sip 1212 Sar Sar 72 700 Ex PLUS UHF Schematic Diagram Baseband 8 AF Amplifier
17. PLUS Service Manual 4 The automatic power control APC circuit stabilizes the transmit power by detecting the drain current of final stage amplifier FET 101 2 2 compares the preset reference voltage with the voltage obtained from final current APC voltage is in proportion to the difference between auto detect voltage and reference voltage output from 1 101 1 2 The output voltage controls FET power Baseband and Signalling System The block diagram of signalling section is shown as figure 5 AFSK Scrambler MSK AFDIR DeScrambler Demodulator 1 208D TONEO 1C402 c Pre RX LPF vo dmm CTCSS CDCSS 4 1 d I4 4 AF DET m LPF AMP LPF w E A PTT MIC MUTE MIC AUDIO PROCESSOR 1 408 2346 SP lt wo T SMF 44 VR2 KY Expand HF vra pes T AU Limiter De 4 APR Modulat 5 2 Emphasis i AFC0 2402 10407 10 RB706F 40 BPF Fo SW Fig 5 AF and Signalling Circuit 1 CTCSS CDCSS Transmit CTCSS CDCSS signalling produced by CTCSS PLL pass a low pass filter and then enters VC
18. 5 1 PTT SK1 is pressed to increase decrease value of the adjusting item Red LED glows indicating the maximum value and green LED indicating the minimum value Hold down the key to increase or decrease the value continuously Press PTT key to save the BATT LOW VOX and SQL settings then green LED glows once 6 Select adjustment group The first group of adjustment items is selected once the radio enters the manual adjust mode Select the 16 channel and press PTT key to enter the next group Press it again to return to the first group Orange LED flashes once when the first group is selected and flashes twice when the second group is selected 700 PLUS Service Manual 7 Frequency Setting 5 point tuning MHz TX TX1 TX2 TX3 TX4 TX5 RX RX1 RX2 RX3 RX4 RX5 3 point tuning MHz TX TX1 TX5 RX1 RX3 RX5 1 point tuning MHz TX RX3 First Group of Adjustment Items Channel No Adjustment Item Remarks 25KHz 20KHz 12 5KHz 1 Tx power LOW 5 point tuning 2 CDCSS PLL balance 3 point tuning wide 3 CDCSS deviation 3 point tuning wide 1 point tuning 1 point tuning narrow 4 CTCSS deviation LOW 67Hz 3 point tuning wide 1 point tuning 1 point tuning narrow 2 CTCSS deviation CENTER a Barba wide os ipa 1 point tuning narrow 136 5Hz 6
19. 700 PLUS Service Manual 5 PTT SK1 PTT gt Increase SK1 gt Decrease PTT SK1 is pressed to adjust upward downward Red LED glows indicating the maximum adjust value and green LED indicating the minimum value Hold down the key to increase decrease the adjust value continuously Press PTT key to save the BATT LOW and SQL settings then green LED glows once 6 Select adjustment item group The first group of adjustment item is selected when the radio enters the manual adjust mode Turn to CH16 and press PTT key to enter the next group Press again to return to the first group Orange LED flashes once when the first group is selected Orange LED flashes twice when the second group is selected 7 Frequency Setting can be set via programming software 5 point tuning MHz TX TX1 TX2 TX3 TX4 TX5 RX RX1 RX2 RX3 RX4 RX5 TX TX1 TX3 TX5 RX RX1 RX3 RX5 TX TX3 RX RX3 3 point tuning 1 point tuning MHz Adjustment Method Turn the radio on by holding down TK and SK2 key simultaneously for 2 seconds the radio enters manual adjust mode with red LED flashes twice Refer to Manual Adjust Mode in TC 700 Software Specification for more details Transmitter Enter the adjust mode Turn to 1 point narrow respectively Communication Condition Test Method Purpose Instrument Enter the adjust mode Turn to Radio Adjust VR1 Frequency CH1 Communication Erro
20. WARNING Failure to use ATEX approved Product unit with ATEX approved battery or ATEX approved accessories specifically approved for that product may result in the dangerously unsafe condition of radio combination being used hazardous location Safe Radio Information ATEX Approved intrinsically Safe Radio Certification ATEX approved Intrinsically Safe ZELM 06 ATEX 0321 II2G EEx ib IIB T3 Ex 120 Ex tD A21 IP64 T160 C ATEX Atmospheres Explosibles Directive 94 9 EC Introduced in 2003 this is the European Union directive to which all two way radios must conform if used in potentially explosive environments It replaces the Cenelec classification all European Union member states and EFTA countries All HYT professional series ATEX portable radios are approved to ATEX Protection Classes 2 G EEx ib IIB and II 2D IP64 T160 C as interpreted in the following tables ATEX Gas Protection 2 ib T3 3 Device surface temperature will exceed 200 IIB Protection in gas groups up to IIB ib Type of intrinsic safety protection Ex Explosion proof equipment E Certified to European ATEX Standard G Gas 2 High protection equipment of category 2 for use in i e Zone 1 Group
21. 50 P42 A18 51 41 17 52 P40 A16 53 P37 A15 54 P36 A14 55 P35 A13 56 P34 A12 57 P33 A11 58 P32 A10 59 P31 A9 60 61 P30 A8 Narrow control 62 Vss GND GND 63 P27 A7 AFCO 64 P26 A6 WCON Wide control 65 P25 A5 LEDR Red LED control lit L goes out 66 P24 A4 LEDG O Green LED control H lit L goes out 67 P23 A3 EN2 2 68 P22 A2 4 EN4 69 P21 A1 70 P20 A0 EN1 1 71 P17 INT5 72 P16 INTA AFMUTE 16 700 PLUS Service Manual No MCU Port Port Name Input Output Features 73 PH55 H8NT3 74 P14 TK ALARM 75 P13 DC Switch 76 12 PLL UL PLL unlock detect 77 PLL_STB O PLL strobe output 78 P10 MICMUTE O MICMUTE 79 07 07 Option 1 Programming cable detect 80 P06 D6 PLL_DATA PLL date input 81 P05 D5 PLL_CLK PLL clock output 82 4 4 Receive transmit control 83 03 03 APC Switch 84 2 02 85 01 01 SK1 86 00 00 5 2 87 107 7 signal input 88 106 6 BATT battery detect 89 P105 AN5 BATTSEL Battery detect 90 P104 AN4 NC 91 P103 AN3 SELF Reset mode control ground this pin to enter reset mode 92 P102 AN2 RSSI RSSI detect pin 93 101 1 SQL S
22. A in a hazardous area Remove the case assembly from the chassis shown as Fig 1 1 Remove the volume knob and channel selector knob 2 Remove the two screws 0 3 Lift the both sides of chassis from the case assembly 3 Figure 1 Remove the speaker shown as Fig 2 1 Remove the three screws 4 on the fixing ring of the speaker and take out the fixing 0 2 Take out the speaker and waterproof gasket 9 A Note be careful not to snap the speaker wire Figure 2 Cautions for Assembly Attaching radio case to the bracket 1 Make sure the waterproof cushion is firmly attached into the slot 0 of the bracket 57 700 PLUS Service Manual 2 Attach speaker and its waterproof ring to the corresponding place on the case 2 Note ensure the speaker and its waterproof ring are securely inserted Figure 4 Press the stainless fixing ring on the waterproof ring of the speaker and attach the screw Insert the top side of the bracket into the case 4 Caution Do not place the speaker wire on the magnetic core of speaker 5 Press the bracket downwards and attach the screw to make the bracket is assembled into the case Note Manually place the waterproof ring for main unit at the proper position if it is mal positioned Figure 5 Figure 6 58 700 PLUS Service Manual D gt o 9 59 Parts List
23. voltage for the control circuit And IC503 supplies 5V C5V voltage for the shared circuit IC502 supplies voltage for the transmit receive circuit While transmitting 5 becomes low level and Q502 is turned on to supply 5V T5V voltage for the transmit circuit While receiving R5C becomes low level and Q504 is turned on to supply 5V R5V voltage for the receive circuit Power supply for 16 from B and works after passing through fuse FE4 2A Power supply for audio PA is from B and works after passing through fuse FE5 0 5A AVR SW gt T5V BATT FUSE SW 75 4 AVR p SW pb R5V Lp AVR Ep 5 5 m Fig 1 Power Supply Block Diagram PLL Frequency Synthesizer PLL circuit generates the first local oscillator signal for receive and RF signal for transmit T R BUFF SW To Drive Amp s 0111 101 SW e Q301 D201 15 Local OSC To Mixer UL PLL VCXO CTC lt IK DAT STB X301 Fig 2 PLL Block Diagram 700 PLUS Service Manual 1 PLL Circuit Step frequency of PLL can be 2 5 KHz 5 0 KHz or 6 25 KHz 16 8MHz reference oscillator signal is divided at IC301 by a counter to generate a 2 5 KHz 5 0 KHz or 6 25 KHz reference frequency Output signa
24. 2 TC 700 Ex PLUS Service Manual No Material No Description Qty 1 6000135000000 PTT key cover 1 2 6100068000000 Silica rubber PTT key 1 3 8600700500000 Model label 1 4 8600700500100 logo metal label 1 5 6201006000000 Inner liner knob 2 6 6000076000020 Channel selector knob 1 7 6000136000000 Light guide 1 8 7507008000000 9448 adhesive tape for light guide 1 9 6000077000030 Volume control knob 1 10 6000134000000 Rear cover of radio unit 1 11 6000138000000 Dust cover 1 12 7400051000000 MIC cover 1 13 7400054000000 Grill cloth 1 14 5001190000090 Speaker 1 15 6100066000000 Waterproof ring for speaker 1 16 6201079000000 Stainless steel fixing ring for speaker 1 17 6100067000000 Waterproof ring for antenna 1 18 6100069000000 Waterproof ring for volume control knob 2 19 7207005400000 Nut M7 0 5 4mm 1 20 7206004200000 Nut M6 0 4 2 1 21 6100065000000 Waterproof ring for radio unit 1 22 6000137000000 Bracket for MIC holder 1 23 5202003100120 Battery connector 1 24 6100070000000 Waterproof ring for battery connector 1 25 86700EX400000 Warning label 1 26 8600700000100 Model label 1 27 6300016001000 Aluminum chassis 1 28 7300001000000 Metal dome of PTT 1 29 5202004200010 connector 1 30 41700EX100400 PTT PCB 1 31 7500114000000 Heat sinking pad 1 32 3801045030090
25. B5J 66 3001051030000 resistor 0402 10 14 1 6442 68 3001051030000 resistor 0402 1 R463 T 69 3001051030000 Chip resistor 0402 10 J1 1 1 R467 80 3001051030000 Chipresistor0402 10 J1 1 1 R632 130 R235 R240 86 3001051040010 Chip resistor 0402 100 0 1 89 3001051040010 Chip resistor 0402 100KO 1 90 3001051040010 Chip resistor 0402 100KO 31 7 1 96 3001051040010 Chip resistor 0402 100K2J1 1 R516 98 3001051050020 Chipresistor0402 1MO J1 16 1 R142 TE 99 3001051050020 Chipresistor0402 1MO 116 1 R408 34 700 PLUS Service Manual No Material Description Qty Ref Print No B3J B2J Bal 21 T3B B1E B3G 35 700 PLUS Service Manual Material Description Qty Ref Print No 2G 188 189 190 192 193 194 195 196 3001054720000 resistor 0402 47 0 197 198 199 200 201 202 203 204 205 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 06 36 700 PLUS Service Manual No Material Description Qty Ref Print No Resistor array 0402 1K 4 J 1 16 37
26. CTCSS deviation HIGH 254 1Hz 3 point tuning wide 1 point tuning 1 point tuning narrow 7 AK2346 audio deviation TX 3 point tuning wide 1 point tuning 3 point tuning narrow 8 2 TONE deviation 1 point tuning wide 1 point tuning 1 point tuning narrow 9 DTMF deviation 1 point tuning wide 1 point tuning 1 point tuning narrow 10 MSK deviation 3 point tuning wide 1 point tuning 1 point tuning narrow 11 TX power HIGH 5 point tuning 12 TX voltage LOW 1 point tuning Second Group of Adjustment Items Channel No Adjustment Item Remarks 25KHz 20KHz 12 5KHz 1 RX sensitivity 5 point tuning 2 AK2346 volume RX 1 point tuning wide 1 point tuning 1 point tuning narrow 3 Squelch level 3 OPEN 5 point tuning wide 1 point tuning 3 point tuning narrow 4 Squelch level 3 SQUELCH 5 point tuning wide 1 point tuning 3 point tuning narrow 5 Squelch level 9 OPEN 5 point tuning wide 1 point tuning 3 point tuning narrow 6 Squelch level 9 SQUELCH 5 point tuning wide 1 point tuning 3 point tuning narrow 7 RX voltage LOW 1 point tuning 6 PC Tuning Mode Select tuning mode of programming items in the programming software and then tuning as the setting 700 PLUS Service Manual ircuit Description Power Supply The radio power is supplied by the battery The power supply is from B and supplies power SWB for the three AVRs after passing through fuse FE250mA and switch IC504 supplies 5V M5V
27. ID 2 Tone 5 Tone HDC1200 HDC2400TM 1 LED glows red while transmitting 2 LED glows orange when transmission ends 700 PLUS Service Manual Decoding 2 5 Tone HDC1200 HDC2400TM Orange LED flashes after the signalling is successfully decoded Select Power Level 0 5W One is heard 1 5W Two beeps are heard 3W Three beeps are heard Function Key Press One beep to enable two beeps to disable Software Specifications Specifications Conventional Mode 1 Se 7499 12 13 14 15 16 17 18 Mechanical Selector 16 channels VHF 136 174 MHz UHF 420 470 MHz Channel Spacing 25 20 12 5KHz programmable Step 2 5 5 6 25KHz LED Indicator Red Green Orange 3 Programmable Function Keys CTCSS CDCSS Encode amp Decode DTMF Encode 2 Tone 5 Tone Encode amp Decode HDC2400 Encode amp Decode HDC1200 Encode amp Decode Squelch Mode 1 Carrier 2 CTCSS CDCSS 3 Optional Signalling 4 CTCSS CDCSS AND 2 Tone 5 HDC2400 HDC1200 5 CTCSS CDCSS OR 2 Tone HDC2400 HDC1200 Scan Time Out Timer TOT Rental Battery Save Emergency PTT ID Busy Channel Lockout Tx Admit Criteria Description 1 User Mode This mode is for normal operation 2 Reset Mode Firstly ground the SELF point and then turn the radio on while holding down TK key for 2 se
28. 1 RX4 502 6 RX5 519 9 TX1 400 TX2 417 5 TX3 435 TX4 452 5 TX5 470 9 400 470 U7 RX1 400 1 RX2 417 6 RX3 435 1 RX4 452 6 RX5 469 9 Channel data is shown as follows Channel Rx Frequency MHZ Tx Frequency MHZ Signalling Power Channel Spacing 1 RX1 TX1 None H 25KHZ 2 RX3 TX3 None 25KHZ 3 RX5 TX5 None 25KHZ 4 RX1 RX1 None LO 20KHZ 5 RX3 RX3 None LO 20KHZ 6 RX5 RX5 None LO 20KHZ 7 RX1 RX1 None LO 12 5KHZ 8 RX3 RX3 None LO 12 5KHZ 9 RX5 RX5 None LO 12 5KHZ 10 RX3 RX3 67HZ LO 25KHZ 11 RX3 RX3 254 1HZ LO 25KHZ 12 RX3 RX3 023 LO 25KHZ 13 RX3 RX3 754 LO 25KHZ 14 RX3 RX3 2 TONE LO 25KHZ 15 RX3 RX3 5 TONE LO 25KHZ 16 RX3 RX3 None LO 25KHZ 700 PLUS Service Manual 3 Wireless Cloning Mode Select wireless cloning from optional functions in programming software turn the radio on while holding down PTT and SK1 key simultaneously for 2 seconds then the source and slave radios enter wireless cloning mode with orange LED flashing once when both radios are turned on and stay in the same channel hold down PTT on the source radio to begin cloning During cloning progress the source radio emits red LED and the slave radio emits green LED When cloning is finished the slave radio flashes green LED and emits Beep tone and the source radio shuts off LED If cloning failed the slave radio flashes red 4 Wired Cloning Mode Select Wired Cloning from optional functions in programming software turn th
29. 101 C105 C117 D102 LPF 1 307 J MIC 0302 0304 Qiu Q101 0102 0103 0104 L b 41 mos p AF VIVM RF VIVM k levels are measured high 68 700 PLUS Block Diagram TOOL MV 1503 SVB 201 4 lt 188373 P ico 12430 2 5 SHFT AX MCU lt ANT SW 10506 RPRE HLIER MD Lo sw 5062244 p Dm K 06 DM vco mor 281617 09077 TR BUE qoi HLIER 2055108 v 2 1201 1202 PLL 10101 N BISIB Y TV 1C301 NMV auns gt aux Se gt Z aN Qu NEN SP AIMEP lt 25824 AN SW 3 T 1001 am Mee 7103 lt Xon UM p __
30. 402 100 17 1 R234 89 3001051040010 Chip resistor 0402 100 1 R241 90 3001051040010 Chip resistor 0402 100KQJ1 1 R242 B3B 96 3001051040010 Chip resistor 0402 100 1 7 1 R429 98 3001051040010 Chipresistor0402 100KQ J 1 R448 99 3001051040010 Chipresistor0402 100 1 R475 700 PLUS Service Manual No Material No Descripion Qty Ref No Print No 101 3001051040010 Chipresistor0402 100 9 1 R493 102 3001051040010 Chip resistor 0402 100KQJ4 1 R516 20 700 PLUS Service Manual No Material Descripion Qty Ref No Print No 153 3001052230010 Chip resistor 0402 22KQ J 11 1 8494 2 154 3001052240000 Chip resistor 0402 220KQJ1 1 R302 21 700 PLUS Service Manual No Material Descripion Ref No Print No 205 3001054730000 Chip resistor 0402 47KQ J 11 1 R506 15 206 3001054730000 Chip resistor 04022470777 1 R507 22 700 PLUS Service Manual No Material Ref No Print No 257 3005051020010 array 0402 1 4 J 1 16 1
31. 500 CPU operates at 9 8304 MHz The block diagram of MCU control system is shown as the following figure EEPROM CTCSS CDCSS Audio Processor Code MCU 506 PTT RXD RSSI SQL FK ALRM 9 6 MCU Block Diagram Circuit in this section is mainly comprised of MCU EEPROM etc MCU control circuit accomplishes the following functions accomplish the reset initialization according to the programmed feature of the radio when power on detect keying signal and monitor battery voltage send necessary frequency data to PLL according to encode of the channel switch and control transmit receive according to the signal input from PTT turn on off the mute circuit according to the input signalling decode signal and squelch level signal output control signal to control the light off of LED control signalling process IC to perform tasks 700 PLUS Service Manual No MCU Port Port Name Input Output Features 1 94 APC TV Automatic Power Control 2 P93 DA0 TONEO O DTMF 2 Tone 5 Tone Beep tone output ALARM tone output 3 P92 TB2IN NC NC 4 P91 9 5 P90 SHIFT O Clock beat frequency 6 BYTE BYTE 7 CNVSS CNVSS 8 P87 XCIN 9 P86 XCOUT 10 RESET Input low level to enter a
32. 631 746 455 3104071060010 Tantalum capacitor 0805 10UF M6 3V 1 C220 20 456 3104071060010 Tantalum capacitor 0805 10UF M6 3V 1 C342 457 3104071060010 Tantalum capacitor 0805 10UF M6 3V 1 C412 12 448 449 450 451 452 453 454 455 456 457 41 700 PLUS Service Manual MaterialNo Description Qty Print No 488 3213306332000 Multidayerinductor 06033 3uH 1 1313 Air core inductor E2 0 30 1 2 5TL 98 3608015000000 3608015000000 Momentary contact switch Trimmer capacitor 3 2 2 5 1 25mm Trimmer capacitor 3 2 2 5 1 25mm CP506 14 1 42 700 PLUS Service Manual No Material Qty Ref Print No Air core inductor E2 0 35 1 6 4TL Air core inductor E2 0 35 1 6 4TL Air core inductor E2 0 35 1 6 4TL Air core inductor E2 0 35 1 6 4TL 43 700 PLUS Service Manual No Description Qty Ref Print No 600 3304060300050 VaractorHVC350BTRF E 1 D210 3304060300010 1 Crystal filter 49 95MHz 7 5k 606 609 1 44 700 PLUS Service Manual Material Description Qty Ref Print No 660 3101051040060 capacitor 0402 16 1 C463
33. Battery s discharging piece 3 5 7400161000000 Holder for battery s charging piece 1 6 6000131000010 Battery cover 1 7 6000484000000 Battery case 1 8 1300700EX0090 FPCB 1 9 5521700010020 Li lon battery core 2 10 3229999670000 Bead Inductor 3 11 7400165000000 Ex Li lon Battery s insulation sheet 1 12 1300700EX0080 Battery protecting plate 1 63 700 PLUS Board View VER D F G H J K sl m 53525 TSC 2552 2 17 2 T 4 Es N 5 T R TC 700EX P VHF VER B 41700EX1 1 23 OMEPTTCO A B C D H J K 64 700 PLUS VHF PC Board View Bottom Layer H G F E D VER A 2 8 0 ANT100 65 700 PLUS UHF Board View Top Layer A B C D G H J K UER B S f 0123 219 Es 10407 z 0202 RES E gt 5CNS 156 lt C531 20505 D ara 17 2 8523 5 SL ALE ege E o 5 Gay Epa Gan Red nsi iis pea
34. Ceramic filter 1 33 3920450300000 Modulator plug in 1 34 5205000000190 Earpiece jack 1 35 4400000000000 connector 2 36 5205000000280 Speaker jack 1 37 4302020000040 Volume switch 1 60 700 PLUS Service Manual No Material No Description Qty 38 7500044000000 Volume switch pad 1 39 4304030000010 Gray code channel switch 1 40 7400023000010 PVC sheet 1 41 5002110000020 1 42 6000519000000 holder 3 43 41700EX100310 Cool PCB 1 44 6000128000000 Battery latch 1 45 6201078000000 Battery latch baffle 1 46 7000036000000 Spring 2 47 6000133100030 Front case of radio unit 1 48 7104502500000 Machine screw M5 3 mm 2 49 7203004000000 Nut M3 0 4 0 2 A 7101904020020 Self tapping screw ST1 9 4mm 10 B 7102504000300 Machine screw M2 5 4 0mm 2 C 7402004520000 Self tapping screw ST2 0 4 5mm 2 D 7102508000000 Machine screw M2 5 8 0mm 2 E 7102004020050 Self tapping screw ST2 0 4 0mm 1 F 7102007020010 Self tapping screw ST1 9 7 0mm 1 61 700 PLUS Service Manual Owner s Manual Main Unit Gift Box 62 700 PLUS Service Manual Material Description Qty 1 7103009000000 Machine screw M3 0 9mm 2 2 7000019000000 Battery spring 2 3 7400172000000 Battery s electrode piece PC 1 4 6201444000000
35. E 3 A S Law 3 3u 28113 8 1000p d Be ms wos oy R304 M29077 I M 1000 470P m ne C106 T 7 7125 C124 C357 0 017 Mot 22 410 BLMI8AG6O1SNID atoe m ins 1 1 BE M 21 op T w 4 4 BLMLIA601S1U L Hi cor un IM vs fao ges 100K cum 1 3 3K 010 0 AT 150K 18 m EHE as m EIE Wl Tes n na Oa 7 LM E 1 10K Hin ano p E 2 284617 iss cis E 7 cus pus mn EIE ne 3 20 8 D mele E24 88 wx me Bes am 2 T m gs gs os 10 55 0 010 470p X m iH JP ms x m Bin Bs Ps divise lem wi Ts 198 E E cu E 22 1 cT am GR a _ 8 nein Wios HUST psy RB a me p i ET um i 83 2 gt eli 5 5 SKS 20 i z m m Dom n m Le TOM du 4514 es as Wee gee ale 4 Ji J qm Cur we
36. E2 0 35 1 6 4TL Air core inductor E2 0 35 1 6 6TR Air core inductor E2 0 35 1 6 6TR Air core inductor E2 0 35 1 6 7TR Air core inductor E2 0 35 1 6 8TR Air core inductor E2 0 35 1 6 8TR 28 700 PLUS Service Manual Material l Gy Ret No Print No 569 3403003000060 Transistor 2846716 1 0306 570 3403007000000 114 11 1 0205 600 3605002057290 Operational amplifier TC75W51FU_ 1 10404 2 603 3605008005070 Operationa amplifier NJM2004V 1 1 101 T4E 604 3605017005540 Operational amplifier 1 7 TDA2822D 1 10401 ds 1 1692 728 606 3608015000000 1 10504 607 3608020005750 management 11250 8 1 10503 608 3610045000010 SCM M30624FGPGP USC 1 10506 T3J 509 361305400100 Baseband processing IC 246 29 700 PLUS Service Manual No Material No Gly Ret Print No 621 3104071060010 Tantalum capacitor 0805 6 1 C316 622 3104071060010 Tantalum capacitor 0805 6 1 C342 83 660 3101051040060 Chip capacitor 04020 16 1 C458 666 3101051040060 Chip capacitor 04020 16 1 609 669 3101051050000 Chipcapacitor0402 1UF K6 3V 1 C403 30
37. F 20Hz LPF 15KHz Enter the adjust mode Turn to No modulation 9 DTMF CH9 Adjust at 1 point wide signal deviation 1 point medium and 1 point narrow PTT key increase SK1 key decrease Adjust deviation to 750Hz wide 600Hz medium and 400Hz narrow respectively Adjust deviation to 4KHz wide 3 2KHz medium and 2KHz narrow respectively Adjust deviation to 3 2KHz wide 2 5KHz medium and 1 8KHz narrow respectively Adjust deviation to 3 2KHz wide 2 5KHz medium and 1 8KHz narrow respectively 50 700 PLUS Service Manual Group 1 Enter the adjust mode Turn to Adjust deviation to 3 2KHz 10 MSK CH10 Adjust at 3 point wide 2 5KHz deviation wide 1 point medium 1 medium and point narrow 1 8KHz narrow respectively Modulation signal 1KHz 45mv 11 VOX Enter the adjust mode Turn to Press PTT to GAIN1 CH11 Adjust at 1 point wide Radio save Communication unavailable Test Set now Save Tx TEST Modulation HPF 20HZ signal 1KHz Enter the adjust mode Turn to LPF 15KHZ 15mv 12 VOX CH12 Adjust at 1 point Press PTT to GAIN5 wide save unavailable now Radio PTT key Enter the adjust mode Turn to 13 Tx power Communication increase Adjust power to CH13 Adjust at 5 point HIGH wide Test Set SK1 key 3W 0 1W wide Tx TEST decrease Ente
38. XO CTCSS CDCSS signalling produced by CTCSS OUT pass a low pass filter and then mixed with AF before enters VCO Receive Demodulated signal enters MCU after pass IC404 1 405 MCU then judges whether CTCSS CDCSS matches the preset values or not According the result the out tone will be controlled by AFMUTE 2 2 5 Tone and Transmit The signal produced MCU provides Tx and SP output tone and is then applied to baseband processing IC The signal in mixed with the audio signal and goes to the VCO Receive Demodulated signal is filtered after passing baseband processing IC and then enters MCU for decoding 3 MSK Transmit MSK signal produced by baseband processing IC enters VCO together with AF signal for modulation Receive MSK input of demodulating IC is sent to AK2346 for demodulation after being amplified The demodulated signal is then sent to MCU for decoding 4 AF Transmit AF signal from MIC enters baseband processed IC for amplification pre emphasis etc after being amplified And then it enters VCO for modulation Receive Demodulated AF signal enters the baseband processing IC for amplification de emphasis 13 700 PLUS Service Manual etc after being amplified And then it enters AF PA driven speaker Baseband processed chip provides functions for processing signal as amplifying filtering emphasizing scrambling companding and amplitude limiting Control System The IC
39. cal OSC 4 VCXO LL multiply 16 8MHz Fig Receiver Section Configuration 1 Front end RF Amplifier The signal from antenna is amplified at RF amplifier Q207 after passing through a transmit receive circuit and a band pass filter Before passing the first mixer the amplified signal is filtered through another band pass filter to remove unwanted signals 2 First Mixer The signal from RF amplifier is mixed with the first local from PLL frequency synthesizer circuit at the fix mixer 1C202 to create a 49 95MHz first IF signal The first IF signal is then fed through a crystal filter XF203 to further remove unwanted signals 3 IF Amplifier The first IF signal is amplified by Q206 before passing through crystal filter and by Q204 after crystal filter and then enters IF processing chip IC204 The signal from IC204 is mixed with the second oscillator signal again 1 204 to create a 450 KHz second IF signal The second IF signal then passes through a 11 700 PLUS Service Manual 450KHz ceramic filter wide CF201 narrow CF202 to eliminate unwanted signals before it is amplified and detected in IC204 4 Narrow Wide Switch Circuit Pin WCON and pin NCON of IC500 outputs wide high level and narrow low level channel spacing signal respectively to turn on corresponding diode connector and to choose ceramic filter CF201 wide or CF202 narrow to filter useless spurious signal 5
40. conds The radio enters all reset mode with green LED flashing twice Turn the channel selector knob to the selected channel and press PTT the radio data is all reset All clone modes will be automatically activated when 6 700 PLUS Service Manual All Reset is completed Frequency settings are shown as follows Selected Channel Frequency Band MHz F1 MHz F2 MHz MHz F4 MHz F5 MHz 1 136 2 145 5 155 TX4 164 5 TX5 174 1 136 174 V RX1 136 1 RX2 145 6 RX3 155 1 RX4 164 6 RX5 173 9 TX1 400 TX2 412 5 TX3 425 TX4 437 5 TX5 450 2 400 450 U1 RX1 400 1 RX2 412 6 RX3 425 1 RX4 437 6 RX5 449 9 TX1 440 TX2 452 5 TX3 465 TX4 477 5 TX5 490 3 440 490 U2 RX1 440 1 RX2 452 6 RX3 465 1 RX4 477 6 RX5 489 9 TX1 420 TX2 432 5 TX3 445 TX4 457 5 TX5 470 4 420 470 U3 RX1 420 1 RX2 432 6 RX3 445 1 RX4 457 6 RX5 469 9 TX1 470 TX2 482 5 TX3 495 TX4 507 5 TX5 520 5 470 520 U4 RX1 470 1 RX2 482 6 RX3 495 1 RX4 507 6 RX5 519 9 TX1 300 TX2 312 5 TX3 325 TX4 337 5 TX5 350 6 300 350 U6 RX1 300 1 2 312 6 RX3325 1 RX4 337 6 RX5 349 9 TX1 350 TX2 360 TX3 370 TX4 380 TX5 390 7 350 390 U5 RX1 350 1 RX2 360 1 RX3 370 1 RX4 380 1 RX5 389 9 TX1 450 TX2 467 5 TX3 485 TX4 502 5 TX5 520 8 450 520 U8 RX1 450 1 RX2 467 6 RX3 485
41. e radio on while holding down PTT and SK2 key simultaneously for 2 seconds then the source radio enters Wired Cloning mode with orange LED flashing twice Then simply turn the slave radio on Hold down PTT on the source radio to begin cloning During cloning progress the source radio emits red LED and the slave radio emits green LED When cloning is finished both radios shut off LED If cloning failed the source radio flashes red 5 Manual Adjust Mode Manual adjustment is performed to adjust frequency deviation power sensitivity squelch etc Note Prior to entering this mode select the Manual Adjust Mode from optional functions in programming software The manual adjustment operations are detailed as follows 1 Enter the manual adjust mode Turn the radio on by holding down TK and SK2 key simultaneously for 2 seconds then the radio enters manual adjust mode with red LED flashing twice 2 Channel number on the channel selector knob Adjust the settings on the selected channel Each changing of channel selects 25KHz channel spacing and low frequency F1 3 SK2 key Sets the frequency 1 point tuning adjusts center frequency 3 point tuning adjusts F1 F3 F5 5 point tuning adjusts F1 F5 The frequency toggles at a low to high cycle Green LED flashes once when adjusting F1 4 TK key Use to toggle the channel spacing among 25 KHz 20 KHz and 12 5 KHz Red LED flashes once when the 25 KHz is selected 5 PTT SK1 gt
42. e selected channel and press PTT the radio data is all reset All clone modes will be automatically activated when reset is completed Refer to All Reset Mode in Software Specification for more details vco c Measurement Adjustment Specification Test Instrument Terminal Parts Method Remarks 1 Setting Power supply voltage 2 Transmit 1 CH TX high Digital Voltmeter CV TC301 3 9V 0 1V VCO lock 2 TX Low TC302 Check gt 0 5V voltage 3 Receive VCO 1 CH RX high 3 9V 0 1V lock voltage 2 RX low Check gt 0 5V Manual Adjust Mode Description 1 Enter manual adjust mode Turn the radio on by holding down TK and SK2 key simultaneously for 2 seconds the radio enters manual adjust mode with red LED flashes twice TK Top key SK1 Side key1 SK2 Side key2 2 Channel number on the channel selector knob Each channel number on the channel selector knob is defined a setting item The bandwidth is 25 KHz and low frequency F1 each time the channel selector knob is rotated 3 SK2 key Used to set the frequency 1 point tuning is used to adjust center frequency 3 point tuning adjusts F1 F3 F5 and 5 point tuning adjusts F1 F5 The frequency toggles from low frequency to high frequency Green LED flashes once when F1 is selected 4 TK key Use to toggle the channel bandwidth among 25 KHz 20 KHz and 12 5 KHz Red LED flashes once when the bandwidth is 25 KHz 48
43. int medium and 3 point SQUELCH PTT to save narrow respectively 7 RX voltage Enter the adjust mode Turn to 5 adjustment ave Low Adjust at 1 point wide 6 6 0 2 Note AF deviation of the receiver is 3KHz wide 2 5KHz medium 1 5KHz narrow 52 roubleshootino MCU Check Normal power on alert tone Speaker works well 9 8304MHz works normally Q501 NO The RF circuit can t be driven Replace the speaker Read available TC 700 Ex PLUS Service Manual Check the control circuit Exchange works well Pin10 is of high level MCU works well Q501 gt Check M5V 53 Check the circuit of read frequency gt Reset 700 PLUS Service Manual VCO Check ower supply is normal Exchange Q306 Exchange Q305 Oscillator CV voltage i Rx is normal Check if Q304 NO Check output normally gt 0304 Check if feedback NO Check is normal Q301 Check power supply circuit Check if 16 8MHz oscillates Check CPU data circuit 54 700 PLUS Service Manual No output power Check power supply circui
44. l from VCO is buffer amplified by 0301 and divided at 301 by a frequency divider The divided signal is compared with 2 5 KHz 5 0 KHz 6 25 KHz reference signal in the phase comparator of IC301 The output signal from phase comparator is filtered through a low pass filter to generate a level D C and the level D C controls oscillator frequency by controlling VCO 2 VCO The operating frequency is generated by Q302 in transmit mode and by Q307 in receive mode Operating frequency generate a control voltage by phase comparator to control varactor so that the oscillator frequency is consistent with the MCU preset frequency 0301 0302 0303 and 0304 in transmit mode and 0307 0308 0309 and D310 in receive mode T R pin is set high level in receive mode and low level in transmit mode The output from Q302 and Q307 is amplified by Q304 and sent to buffer amplifier 3 Unlock Detector An unlock condition appears if low level occurs at MUXOUT pin of IC301 Transmission is inhibited if this condition is detected by microprocessor Receiver The receiver utilizes double conversion superheterodyne UHF VHF 201 202 RF AMP IF AMP MCF IF AMP AF AP BPF Q207 BPF Q206 203 0204 10408 C401 BN K 773 N vx MIX DET Au di 0 NINE CN 4 d gt gt d 4 gt 1 204 T An 0SC X3 lst Lo
45. ll reset mode 11 XOUT O Crystal oscillator output pin 12 VSS GND GND 13 XIN Crystal oscillator output pin 14 VCC 15 P85 NMI 16 P84 INT2 2346 17 P83 INT1 AUX1 Indication for external scrambler 18 P82 INTO AFRDF 2346 RDF 19 P81 20 P80 21 P77 NC O 22 6 CTCOUT _OUT PWM 23 P75 NC 24 4 2 PLL PWM 25 P73 COM5 Indication for receive transmit status 26 P72 TA1O 1 20 27 P71 RxD2 TB5INITONEI 28 P70 TxD2 29 P67 TxD1 TXD O Serial date output 30 P66 RxD1 RXD Serial date input 31 P65 32 P64 33 P63 TxD0 4 34 P62 RxD0 35 P61 COM1 15 700 PLUS Service Manual No MCU Port Port Name Input Output Features 36 P60 COM2 37 P57 RDY EEDAT EEPROM DATA date input output 38 P56 ALE EECLK 39 P55 HOLD 40 P54 HLDA AFDIR AK2346 41 P53 BLCK 2346 SCLK 42 P52 RD NC 43 P51 BHE 2346 44 P50 WR WE 45 P47 CS3 CODIO Common date control 2346 DATA 46 P46 CS2 47 45 81 SAVE O SAVE power save control 48 P44 CS0 R5C O R5C Rx circuit power supply control 49 P43 A19 O IT5C Tx circuit power supply control
46. quelch level input 94 AVSS GND conversion power supply input 95 P100 AN0 CTCSS input 96 conversion reference voltage 97 A D conversion power supply input 98 P97 99 P96 100 P95 17 700 PLUS Service Manual Parts List 1 TC 700 Ex PLUS VHF Parts List 1 No Material Description Qty Ref No Print No 1 3001050000000 resistor 0402 0Q J ew 1 R147 T5F 2 3001050000000 Chip resistor 0402 00 J 116W 1 R254 6 3001050000000 Chip resistor 0402 00 J ew 1 R319 8 3001050000000 Chip resistor 0402 00 J ew 1 R404 9 3001050000000 Chipresistor0402 00 J new R406 2 700 PLUS Service Manual No Material No Descripion Ref No Print No 49 3001051020010 Chipresistor0402 1KQ 116 1 R551 50 3001051020010 Chip resistor 0402 1KQ 116 1 R553 60 3001051030000 Chipresistor0402 10KO 1 R336 B5J 66 3001051030000 Chip resistor 040221050777 1 6440 68 3001051030000 Chip resistor 0402 10KO J 11 R461 69 3001051030000 Chip resistor 0402 10KQ J 4 1 80 3001051030000 Chip resistor 0402 10KQ J 1 4 1 8630 120 86 3001051040010 resistor 0
47. r Adjust a channel TX mode Test Set lt 100Hz TX Test Enter the adjust mode Turn to PTT key Adjust power 1 TX power Low CH1 increase to 0 5W 0 1W Adjust at 5 point wide SK1 key Radio decrease Group 1 CH3 Adjust at point wide 1 point TEST No adjustment HPF 20HZ 2 CDCSS balance Medium and LPF 300HZ 49 700 PLUS Service Manual Enter the adjust mode Turn to CH3 Adjust at Radio Communication 3 CDCSS 3 point wide 1 point Test Set deviation medium and TX TEST 1 point narrow respectively HPF 20HZ Enter the adjust mode Turn to LPF 300HZ CH4 Adjust at 4 CTCSS 67 0Hz 3 point wide 1 point deviation Low medium and 1 point narrow respectively Enter the adjust mode Turn to 5 CTCSS CH5 Adjust at 3 point wide 136 5Hz deviation Point medium and 1 point narrow respectively Center Enter the adjust mode Turn to CH6 Adjust at point wide 25 5 1 point medium and 1 point 254 1Hz narrow respectively deviation High Radio Enter the adjust mode Turn to Communication 7 AK2346 Test Set Adjust at 3 point wide Transmit Audio HPF 20Hz 1 point medium 3 point Deviation LPF 15KHz narrow 1KHz 120Mv Enter the adjust mode Turn to 8 2 Tone CH8 Adjust at 1 point wide deviation 1 point medium 1 point Radio narrow Communication Test Set TX Test HP
48. r the adjust mode Turn to Adjust voltage to 14 Tx voltage CH14 Adjust at 1 point Save 5 8V press PTT Low wide to save 51 700 PLUS Service Manual Receiver Condition Test Method Purpose Instrument Enter the adjust mode Turn to Adjust level to 1 Rx PTT key CH1 119dBm sensitivity SK1 key Adjust at 5 point wide SINAD gt 12dB Enter the adjust mode Turn to When Max CH2 Adjust 1 point at wide PTT key volume is set 2 AK2346 RX medium and narrow Increase adjust AC level to volume respectively SK1 key 1W 16Q single Decrease input 2V dual input 4V Enter the adjust mode Turn to 3 Squelch Adjust level to CH3 Adjust at 5 point wide 1 Level 3 Radio Save 123dBm press point medium and 3 point OPEN Communication PTT to save narrow respectively Test Set Group 2 Enter the adjust mode Turn to 4 Squelch Rx TEST Adjust level to CH4 Adjust at 5 point wide 1 Level 3 HPF 300HZ Save 125dBm press point medium and 3 point SQUELCH LPF 3KHZ PTT to save narrow respectively Enter the adjust mode Turn to 5 Squelch Adjust level to CH5 Adjust at 5 point wide 1 Level 9 Save 117dBm press point medium and 3 point OPEN PTT to save narrow respectively Enter the adjust mode Turn to 6 Squelch Adjust level to CH6 Adjust at 5 point wide 1 Level 9 Save 119dBm press po
49. t Check Q502 Check transistor offset Check drive voltage and low pass gt stage network Repair the transmissio 22 Check flow n network chart NO Check the suited network Yes Finished Finished Exchange 0102 Yes 0101 55 recieve if the power TC 700 Ex PLUS Service Manual NO Check if control voltage AFCO is norma supply of AF is rmal Yes Exchange IC eck if the outp heck if the input o of base band 1 i band is normal eck the output o IC204 is normal Check volume knob amp AFMUTE heck the second loca oscillator is normal heck the voltage o CD201 is normal eck if T1 outputs i Yes gt Exchange 717 Yes gt Exchange AK2346 Yes Check C404 NO Check Q308 NO Exchange CD201 NO Check the status of 204 NO Check VCO RF input Yes Check Q207 passage 56 Y 700 PLUS Service Manual Disassembly and Assembl WARNING Never assemble disassemble the ATEX approved intrinsically safe radio
50. teries must not be carried into a hazardous area Use only the Ex battery BL1703 Ex specified by HYT The use of other batteries is strictly 00000 prohibited and will result in termination of Ex protection The battery must only be charged in a non hazardous area with the designated charger CH10L11 Ex Use only HYT approved accessories Ensure that the radio is not taken into Zone 0 areas To avoid electromagnetic interference and or compatibility conflicts turn off your radio in any facility where posted notices instruct you to do so Hospital or health facilities may be using equipment that is sensitive to external RF energy When instructed to so turn off your radio when on board an aircraft Any use of a radio must be in accordance with airline regulations or crew instructions avoid possible interference with blasting operations turn off your radio when you are near electrical blasting caps in a blasting area or in areas posted Turn off two way radio Obey all signs and instructions For vehicles with an air bag do not place a radio the area over air bag or in the air bag deployment area Do not use any portable radio that has a damaged antenna If a damaged antenna comes into contact with your skin a minor burn can result Do not expose the radio to direct sunlight over a long time nor place it close to heating source 700 PLUS Service Manual
51. tortion lt 5 All Specifications are tested according to TIA EIA 603 and subject to change without notice due to continuous development 64 to achieve the accuracy and completeness of this manual but warranty of accuracy or reliability is given All the specifications and design are subject to change without prior notice due to continuous technology development Changes which may occur after publication are highlighted by Revision History contained in Service Manual No part of this manual may be copied reproduced translated stored in a retrieval system distributed or transmitted in any form or by any means electronic or mechanical for any purpose without express written permission
52. wn the PTT and SK2 Slave radio Rotate the On Off Volume Control knob clockwise to turn the slave radio on Source radio power on the slave radio and 1 LED solidly glows red when connect the cloning cable then press the PTT cloning progress of source radio to initiate cloning 2 LED goes out when cloning is finished 3 LED flashes red when cloning fails Slave radio 1 LED solidly glows green when cloning progress 2 LED goes out when cloning is finished Wireless Turn on both the source radio and slave radio The orange LED flashes once cloning while holding down the PTT and SK1 Both radios are required to be on the same channel for cloning Source radio turn on both the source radio and LED solidly glows red when slave radio while holding down the PTT and cloning progress SK1 then press the PTT of source radio while both radios are on the same channel to initiate cloning Slave radio 1 LED solidly glows green when cloning progress 2 LED flashes green and radio sounds beep tone when cloning is finished 3 LED flashes red when cloning fails Power On The green LED flashes once Low Battery Alert LED flashes red and radio sounds three beeps every 30 seconds Transmitting LED glows red Receiving LED glows green when carrier presents Scanning Green LED flashes once every 1 second Programming Reading LED glows red Writing LED glows green Encoding DTMF PTT
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