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HYT TC-700 Ex PLUS, Service Manual

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HYT TC-700 Ex PLUS Service Manual Download Page 14

                                                                                                         

TC-700 EX PLUS Service Manual

 

13 

First Group of Adjusting Items 

Channel No. 

Adjusting 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) 

5 

CTCSS deviation CENTER 

(136.5Hz) 

 

3 point tuning (wide) 

1 point tuning 

1 point tuning 

(narrow) 

6 

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 

 

 

Summary of Contents for TC-700 Ex PLUS

Page 1: ...cription 61 Troubleshooting Flow Chart 69 Disassembly and Assembly for Repair 73 Exploded View 76 TC 700 EX PLUS Parts List 2 77 Packing 79 Exploded View FM approved Battery 80 Parts List FM approved...

Page 2: ...or spare batteries must not be carried into a hazardous area Use only the Ex battery BL1703 Ex FM specified by HYT The use of other batteries is strictly prohibited and will result in termination of...

Page 3: ...na 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 WARNING Failure to use an FM approved prod...

Page 4: ...ly Safe Radio Certification FM approved Intrinsically Safe TC 700EX PLUS a Portable Radios I S Class I II III Division 1 Groups CDEFG T3C a Radio Band Model Frequency Band V 136 174MHz U 1 400 450MHz...

Page 5: ...rammable 8 Channel Selector Knob Rotate the knob to select from channel 1 to 16 9 Radio On Off Volume Control Knob Rotate the knob clockwise to turn the radio on rotate the knob fully counter clockwis...

Page 6: ...ing is in progress 2 LED goes out when cloning is completed 3 LED flashes red when cloning fails Wired Cloning Target radio 1 LED solidly glows green when cloning is in progress 2 LED goes out when cl...

Page 7: ...seconds Transmitting LED glows red Receiving LED glows green when carrier is present Scanning Green LED flashes once every 1 second Programming Reading LED glows red Writing LED glows green Encoding D...

Page 8: ...TC 700 EX PLUS Service Manual 7 Function Key Press One beep to enable two beeps to disable...

Page 9: ...Step 2 5 5 6 25KHz 4 LED Indicator Red Green Orange 5 3 Programmable Function Keys 6 CTCSS CDCSS Encode Decode 7 DTMF Encode 8 2 Tone 5 Tone Encode Decode 9 HDC2400TM Encode Decode 10 HDC1200 Encode...

Page 10: ...X1 400 RX1 400 1 TX2 412 5 RX2 412 6 TX3 425 RX3 425 1 TX4 437 5 RX4 437 6 TX5 450 RX5 449 9 3 440 490 U2 TX1 440 RX1 440 1 TX2 452 5 RX2 452 6 TX3 465 RX3 465 1 TX4 477 5 RX4 477 6 TX5 490 RX5 489 9...

Page 11: ...3 RX5 TX5 None H 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 1...

Page 12: ...Cloning Mode with orange LED flashing twice Then simply turn the target radio on Hold down PTT on the source radio to begin cloning During cloning the source radio emits red LED and the target radio e...

Page 13: ...Hold down the key to increase or decrease the value continuously Press the PTT key to save the BATT LOW VOX and SQL settings with green LED flashing once 6 Select Adjustment Group The first group of a...

Page 14: ...CTCSS deviation CENTER 136 5Hz 3 point tuning wide 1 point tuning 1 point tuning narrow 6 CTCSS deviation HIGH 254 1Hz 3 point tuning wide 1 point tuning 1 point tuning narrow 7 AK2346 audio deviation...

Page 15: ...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...

Page 16: ...transmitting T5C 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...

Page 17: ...e 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 fr...

Page 18: ...IF processing chip IC204 The signal from IC204 is mixed with the second oscillator signal again in IC204 to create a 450 KHz second IF signal The second IF signal then passes through a 450KHz ceramic...

Page 19: ...age FET amplifier to create 4 0W UHF 5 0W VHF RF power see Fig 6 Fig 4 APC System 3 Antenna Switch and LPF Output signal from RF amplifier passes through a low pass filter network and a transmit recei...

Page 20: ...ot According the result the out tone will be controlled by AFMUTE 2 2 Tone 5 Tone and DTMF Transmit The signal produced by MCU provides a Tx and SP output tone and is then applied to the baseband proc...

Page 21: ...ignal as amplifying filtering emphasizing scrambling companding and amplitude limiting 6 Control System The IC500 CPU operates at 9 8304 MHz The block diagram of MCU control system is shown as the fol...

Page 22: ...atic power control 2 P93 DA0 TONEO O DTMF 2 Tone 5 Tone Beep tone output ALARM tone output 3 P92 TB2IN NC O NC 4 P91 O 5 P90 SHIFT O Clock beat frequency 6 BYTE BYTE I 7 CNVSS CNVSS I 8 P87 XCIN O 9 P...

Page 23: ...NC O 24 P74 TA2O CTC_PLL O CTC_PLL PWM 25 P73 COM5 O Indication for receive transmit status 26 P72 TA1O 1 2OSC O 27 P71 RxD2 TB5IN TONEI O 28 P70 TxD2 29 P67 TxD1 TXD O Serial date output 30 P66 RxD1...

Page 24: ...er save control 48 P44 CS0 R5C O R5C Rx circuit power supply control 49 P43 A19 T5C O T5C Tx circuit power supply control 50 P42 A18 51 P41 A17 52 P40 A16 53 P37 A15 54 P36 A14 55 P35 A13 56 P34 A12 5...

Page 25: ...witch O 84 P02 D2 PTT I PTT 85 P01 D1 SK1 I MONI 86 P00 D0 SK2 I FK 87 P107 AN7 I MIC signal input 88 P106 AN6 BATT I BATT battery voltage detect 89 P105 AN5 BATTSEL I Battery detect 90 P104 AN4 NC I...

Page 26: ...2 0 J 1 16W 1 R590 B3K 20 3001050000000 Chip resistor 0402 0 J 1 16W 1 R608 T1G 21 3001050000000 Chip resistor 0402 0 J 1 16W 1 R609 T1G 22 3001051000000 Chip resistor 0402 10 J 1 16W 1 R152 B3G 23 30...

Page 27: ...1 R336 B5J 63 3001051030000 Chip resistor 0402 10K J 1 16W 1 R347 B4I 64 3001051030000 Chip resistor 0402 10K J 1 16W 1 R407 B3K 65 3001051030000 Chip resistor 0402 10K J 1 16W 1 R418 T3F 66 30010510...

Page 28: ...16W 1 R474 B2J 107 3001051230000 Chip resistor 0402 12K J 1 16W 1 R238 B3B 108 3001051230000 Chip resistor 0402 12K J 1 16W 1 R483 B3J 109 3001051240000 Chip resistor 0402 120K J 1 16W 1 R339 B3I 110...

Page 29: ...1 16W 1 R460 B3K 151 3001052230010 Chip resistor 0402 22K J 1 16W 1 R484 B3I 152 3001052230010 Chip resistor 0402 22K J 1 16W 1 R494 B2J 153 3001052240000 Chip resistor 0402 220K J 1 16W 1 R302 B3I 15...

Page 30: ...2 4 7K J 1 16W 1 R496 T1H 195 3001054720000 Chip resistor 0402 4 7K J 1 16W 1 R520 T2G 196 3001054730000 Chip resistor 0402 47K J 1 16W 1 R102 B4F 197 3001054730000 Chip resistor 0402 47K J 1 16W 1 R1...

Page 31: ...resistor 0603 1K J 1 10W 1 R533 T3I 239 3001061020010 Chip resistor 0603 1K J 1 10W 1 RE1 T3B 240 3001061020010 Chip resistor 0603 1K J 1 10W 1 RE10 T1D 241 3001061020010 Chip resistor 0603 1K J 1 10W...

Page 32: ...000 Resistor array 0402 1K 2 J 1 16W 2 1 CP511 T2J 284 3005051020000 Resistor array 0402 1K 2 J 1 16W 2 1 CP512 T2J 285 3005051020000 Resistor array 0402 1K 2 J 1 16W 2 1 CP514 T4J 286 3005051020000 R...

Page 33: ...7 B4E 327 3101051020010 Chip capacitor 0402 1000PF K 50V 1 C108 B4F 328 3101051020010 Chip capacitor 0402 1000PF K 50V 1 C110 B4F 329 3101051020010 Chip capacitor 0402 1000PF K 50V 1 C114 B4E 330 3101...

Page 34: ...K 25V 1 C239 B1E 371 3101051030020 Chip capacitor 0402 0 01UF K 25V 1 C241 B2E 372 3101051030020 Chip capacitor 0402 0 01UF K 25V 1 C243 B2D 373 3101051030020 Chip capacitor 0402 0 01UF K 25V 1 C250...

Page 35: ...0 1UF K 16V 1 C417 T2E 415 3101051040060 Chip capacitor 0402 0 1UF K 16V 1 C432 B3J 416 3101051040060 Chip capacitor 0402 0 1UF K 16V 1 C457 B1K 417 3101051040060 Chip capacitor 0402 0 1UF K 16V 1 C4...

Page 36: ...F J 50V 1 C360 B4I 459 3101052200010 Chip capacitor 0402 22PF J 50V 1 C361 B4I 460 3101052200010 Chip capacitor 0402 22PF J 50V 1 C471 B1J 461 3101052200010 Chip capacitor 0402 22PF J 50V 1 C472 B1K 4...

Page 37: ...50V 1 C499 T1C 503 3101054710010 Chip capacitor 0402 470PF K 50V 1 C518 T2A 504 3101054710010 Chip capacitor 0402 470PF K 50V 1 C521 T1I 505 3101054710010 Chip capacitor 0402 470PF K 50V 1 C522 T1J 5...

Page 38: ...3 1UF K 10V 1 C221 T1G 547 3101061050060 Chip capacitor 0603 1UF K 10V 1 C445 B2I 548 3101061050060 Chip capacitor 0603 1UF K 10V 1 C489 B3J 549 3101061050060 Chip capacitor 0603 1UF K 10V 1 C520 T1I...

Page 39: ...1 C150 T4F 591 3104074750030 Tantalum capacitor 0805 4 7UF M 10V 1 C316 B5G 592 3104074750030 Tantalum capacitor 0805 4 7UF M 10V 1 C336 B5J 593 3104074750030 Tantalum capacitor 0805 4 7UF M 10V 1 C34...

Page 40: ...21506601000 Chip ferrite bead 0603 600 25 1 L401 T1D 636 3221507221000 Chip ferrite bead 0805 220 25 1 L106 B3D 637 3221507221000 Chip ferrite bead 0805 220 25 1 L501 T2A 638 3221507600000 Chip ferrit...

Page 41: ...10 Varactor HVC376BTRF E 1 D301 B3H 678 3304060300010 Varactor HVC376BTRF E 1 D302 B3H 679 3304060300010 Varactor HVC376BTRF E 1 D303 B3H 680 3304060300010 Varactor HVC376BTRF E 1 D304 B3H 681 3304060...

Page 42: ...channel 1 Q104 B4D 725 3503010000010 FET 2SJ243 T1 A P channel 1 Q303 B4G 726 3503010000010 FET 2SJ243 T1 A P channel 1 Q503 T1I 727 3503010000010 FET 2SJ243 T1 A P channel 1 Q504 T1I 728 350302000003...

Page 43: ...B1F 751 4002000000180 Chip fuse 0603 FF 0 25A 32V 0467 250NR 1 FE1 T2A 752 4016000000000 Chip fuse 0603 FF 0 5A 32V RoHS 1 FE3 T2C 753 4016000000010 Chip fuse 0603 FF 2 0A 32V RoHS 1 FE4 T3C 754 4016...

Page 44: ...2 0 J 1 16W 1 R504 T5J 20 3001050000000 Chip resistor 0402 0 J 1 16W 1 R510 T3K 21 3001050000000 Chip resistor 0402 0 J 1 16W 1 R519 T1I 22 3001051000000 Chip resistor 0402 10 J 1 16W 1 R152 B3G 23 30...

Page 45: ...1 R347 B4I 63 3001051030000 Chip resistor 0402 10K J 1 16W 1 R407 B3K 64 3001051030000 Chip resistor 0402 10K J 1 16W 1 R418 T3F 65 3001051030000 Chip resistor 0402 10K J 1 16W 1 R426 B3K 66 300105103...

Page 46: ...W 1 R317 B4I 107 3001051530000 Chip resistor 0402 15K J 1 16W 1 R409 B3J 108 3001051530000 Chip resistor 0402 15K J 1 16W 1 R440 T1E 109 3001051530000 Chip resistor 0402 15K J 1 16W 1 R460 B3K 110 300...

Page 47: ...1 16W 1 R226 B1E 151 3001052710010 Chip resistor 0402 270 J 1 16W 1 R150 B3G 152 3001052710010 Chip resistor 0402 270 J 1 16W 1 R230 B2E 153 3001052710010 Chip resistor 0402 270 J 1 16W 1 R232 B2E 154...

Page 48: ...02 47K J 1 16W 1 R113 B4E 195 3001054730000 Chip resistor 0402 47K J 1 16W 1 R215 T1H 196 3001054730000 Chip resistor 0402 47K J 1 16W 1 R313 B3G 197 3001054730000 Chip resistor 0402 47K J 1 16W 1 R41...

Page 49: ...sistor 0603 10 J 1 10W 1 R109 B3F 239 3001061020010 Chip resistor 0603 1K J 1 10W 1 R532 T3I 240 3001061020010 Chip resistor 0603 1K J 1 10W 1 R533 T3I 241 3001061020010 Chip resistor 0603 1K J 1 10W...

Page 50: ...00 Resistor array 0402 1K 2 J 1 16W 2 1 CP509 T2I 284 3005051020000 Resistor array 0402 1K 2 J 1 16W 2 1 CP511 T2J 285 3005051020000 Resistor array 0402 1K 2 J 1 16W 2 1 CP512 T2J 286 3005051020000 Re...

Page 51: ...3101051010030 Chip capacitor 0402 100PF J 50V 1 C341 B5J 328 3101051010030 Chip capacitor 0402 100PF J 50V 1 C605 T2C 329 3101051010030 Chip capacitor 0402 100PF J 50V 1 C607 T2D 330 3101051020010 Chi...

Page 52: ...2 0 01UF K 25V 1 C545 T3I 371 3101051030020 Chip capacitor 0402 0 01UF K 25V 1 C560 T3H 372 3101051030020 Chip capacitor 0402 0 01UF K 25V 1 C561 T4H 373 3101051030020 Chip capacitor 0402 0 01UF K 25V...

Page 53: ...3V 1 C491 B3J 415 3101051050000 Chip capacitor 0402 1UF K 6 3V 1 C496 T2C 416 3101051050000 Chip capacitor 0402 1UF K 6 3V 1 C525 T4K 417 3101051050000 Chip capacitor 0402 1UF K 6 3V 1 C531 T2G 418 3...

Page 54: ...50V 1 C113 B4E 459 3101054710010 Chip capacitor 0402 470PF K 50V 1 C115 B3D 460 3101054710010 Chip capacitor 0402 470PF K 50V 1 C120 B4C 461 3101054710010 Chip capacitor 0402 470PF K 50V 1 C124 B4D 4...

Page 55: ...402 0 47UF Z 6 3V 1 C410 B3K 503 3101054740000 Chip capacitor 0402 0 47UF Z 6 3V 1 C475 B2K 504 3101055610000 Chip capacitor 0402 560PF K 50V 1 C252 B3C 505 3101055610000 Chip capacitor 0402 560PF K 5...

Page 56: ...10 Chip capacitor 0603 27PF J 50V 1 C125 B5D 548 3101063000010 Chip capacitor 0603 30PF J 50V 1 C352 B2H 549 3101063900000 Chip capacitor 0603 39PF J 50V 1 C126 B5C 550 3101063900000 Chip capacitor 06...

Page 57: ...3210305150010 Multi layer chip inductor 0402 15nH 1 L103 B4F 592 3210305180000 Multi layer chip inductor 0402 18nH 1 L102 B4F 593 3210305330000 Multi layer chip inductor 0402 33nH 1 L117 B3G 594 32103...

Page 58: ...6 3301250300000 Exclusive IC HSMS 2827 TR1G 1 IC202 B3E 637 3302040300040 Zener diode BZX84 C2V4 SOT 23 1 DE1 B5E 638 3302040300040 Zener diode BZX84 C2V4 SOT 23 1 DE2 B5E 639 3302040300040 Zener diod...

Page 59: ...diode EDZTE616 8B SOD 523 1 ZD407 T2D 679 3399990000260 Diode HSM88ASTL E 1 D208 B3B 680 3401002000290 Transistor 2SC4116 GR T5L F H 1 Q401 B3K 681 3401002000990 Transistor 2SC5108 Y TE85L F 1 Q101 B4...

Page 60: ...erational amplifier NJM2904V 1 IC101 T4E 724 3605017005540 Operational amplifier 1 7V TDA2822D 1 IC401 T2E 725 3608015000000 Power management IC voltage regulator XC6201P502PR 5V 1 IC502 T3B 726 36080...

Page 61: ...TC 700 EX PLUS Service Manual 60 No Material No Description Qty Ref No Print No 748 3001110190000 Chip resistor 2512 0 1 F 1W 1 RE27 T4C...

Page 62: ...wn TK for 2 seconds and then the radio enters 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...

Page 63: ...l bandwidth among 25 KHz 20 KHz and 12 5 KHz Red LED flashes once when the bandwidth is 25 KHz 5 PTT SK1 PTT Increase SK1 Decrease PTT SK1 is pressed to adjust upward downward Red LED glows indicating...

Page 64: ...mitter Item Condition Test Instrument Method Purpose Adjust a channel Enter the adjust mode Turn to CH1 TX mode Radio Communication Test Set TX Test Adjust VR1 Frequency Error 100Hz 1 TX power Low Ent...

Page 65: ...Low Enter the adjust mode Turn to CH4 Adjust at 3 point wide 1 point medium and 1 point narrow respectively PTT key increase SK1 key decrease 5 CTCSS 136 5Hz deviation Center Enter the adjust mode Tur...

Page 66: ...the adjust mode Turn to CH8 Adjust at 1 point wide 1 point medium 1 point narrow PTT key increase SK1 key decrease Adjust deviation to 3 2KHz wide 2 5KHz medium and 1 8KHz narrow respectively 9 DTMF...

Page 67: ...oint wide Radio Communication Test Set Tx TEST HPF 20HZ LPF 15KHZ Save Modulation signal 1KHz 15mv Press PTT to save unavailable now 13 Tx power HIGH Enter the adjust mode Turn to CH13 Adjust at 5 poi...

Page 68: ...t 5 point wide 1 point medium and 3 point narrow respectively Save Adjust level to 123dBm press PTT to save 4 Squelch Level 3 SQUELCH Enter the adjust mode Turn to CH4 Adjust at 5 point wide 1 point m...

Page 69: ...Manual 68 7 RX voltage Low Enter the adjust mode Turn to CH7 Adjust at 1 point wide Save No adjustment 6 6V 0 2V Note Audio deviation of the receiver is 3KHz wide 2 5KHz medium and 1 5KHz narrow Trou...

Page 70: ...can t be driven Yes Speaker works well NO Replace the speaker NO 9 8304MHz works normally Yes Read available Yes Q501 works well Exchange Q501 NO Check M5V MCU works well Pin10 is of high level Yes Y...

Page 71: ...6 NO Oscillator CV voltage in Rx is normal Yes Check if Q305 works well NO NO Check if Q304 output normally Yes Exchange Q305 Check Q304 NO Yes Check if feedback is normal Check Q301 NO Check power su...

Page 72: ...TC 700 EX PLUS Service Manual 71...

Page 73: ...voltage and low pass network Repair the transmissio n network Check the suited network VCO Check flow chart Exchange Q102 Exchange Q101 Finished Finished Finished Control voltage is normal The curren...

Page 74: ...normal Exchange AK2346 Check the output of IC204 is normal Check the second local oscillator is normal Check the voltage of CD201 is normal Check if PIN 16 outputs in IF input Check if T1 outputs in R...

Page 75: ...bly from the chassis shown as Fig 1 1 Remove the volume knob and channel selector knob 2 Remove the two screws 3 Lift the both sides of chassis from the case assembly Figure 1 Remove the speaker shown...

Page 76: ...e speaker and its waterproof ring are securely inserted Figure 4 3 Press the stainless fixing ring on the waterproof ring of the speaker and attach the screw 4 Insert the top side of the bracket into...

Page 77: ...TC 700 EX PLUS Service Manual 76 Figure 5 Figure 6...

Page 78: ...TC 700 EX PLUS Service Manual 77 Exploded View E D D B B C A A A A A 42 36 35 34 32 31 29 45 44 43 41 40 39 38 37 33 30 28 27 26 25 24 23 22 21 20 19 17 18 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1...

Page 79: ...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...

Page 80: ...0000 Battery latch baffle 1 44 7000036000000 Spring 2 45 6000133100030 Front case of radio unit 1 A 7101904020020 Self tapping screw ST1 9 4mm 13 B 7102504000300 Machine screw M2 5 4 0mm 2 C 740200452...

Page 81: ...TC 700 EX PLUS Service Manual 80 Packing...

Page 82: ...TC 700 EX PLUS Service Manual 81 Exploded View FM approved Battery 3 4 5 6 10 9 8 7 11 12 1 2...

Page 83: ...Battery s electrode piece PC 1 4 6201444000000 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 1300...

Page 84: ...50 Dimensions H W D with battery without antenna 122 55 38mm Weight with antenna battery 426g Receiver Sensitivity 0 25 0 35 V Selectivity 70 60dB Intermodulation 65dB Spurious Response Rejection 70d...

Page 85: ...ct 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 man...

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