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HYT TC-500, Service Manual, Page: 2 / 77

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TC-500 Service Manual

1

Content

Revision History-----------------------------------------------------------------------------------------------2

General-----------------------------------------------------------------------------------------------------------2
Radio Overview------------------------------------------------------------------------------------------------3

Software Specification--------------------------------------------------------------------------------------5

Circuit Description------------------------------------------------------------------------------------------9
CPU Pins-------------------------------------------------------------------------------------------------------13

Parts List 1-----------------------------------------------------------------------------------------------------15

Adjustment Description-----------------------------------------------------------------------------------59

Disassembly and Assembly for Repair--------------------------------------------------------------63
Exploded View------------------------------------------------------------------------------------------------66

Part List 2------------------------------------------------------------------------------------------------------67

Packing---------------------------------------------------------------------------------------------------------68
PCB View-------------------------------------------------------------------------------------------------------69

Block Diagram------------------------------------------------------------------------------------------------73

Schematic Diagram-----------------------------------------------------------------------------------------74
Specifications------------------------------------------------------------------------------------------------76

Summary of Contents for TC-500

Page 1: ...8130050000120 2007 12 25 ...

Page 2: ...dio Overview 3 Software Specification 5 Circuit Description 9 CPU Pins 13 Parts List 1 15 Adjustment Description 59 Disassembly and Assembly for Repair 63 Exploded View 66 Part List 2 67 Packing 68 PCB View 69 Block Diagram 73 Schematic Diagram 74 Specifications 76 ...

Page 3: ...ny open connectors are properly terminated Shut off and do not operate this equipment near electrical blasting caps or in an explosive atmosphere When in vehicles with an airbag do not place a portable radio in the area over an airbag or in the airbag deployment area Do not expose the radio to direct sunlight for a long time nor place it close to a heating source Do not use any portable radio with...

Page 4: ...ector Knob to select from channels 1 16 Channel 16 can be programmed by your dealer as scan function 4 Power Volume Control Knob Rotate the Power Volume Control Knob clockwise to turn the radio on and fully counter clockwise to turn the radio off When the radio is on turn the knob to adjust volume 5 PTT Key Press and hold down PTT key to talk release it to receive 6 Monitor Key In receive mode lon...

Page 5: ... insert programming cable into the jack to program the radio via programming software 10 Battery 11 Belt Clip Used to clip radio on your belt 12 Battery Latch Used to fasten and remove the battery 13 Charging Contact Connect the charging contacts with that on the charger to begin charging ...

Page 6: ...ing the two SELF points the radio enters user mode Refer to TC 500 Owner s Manual for details about operation in this mode Model Set Mode 1 If the radio is in standard model short out the two MS2 points on PCB and then operate following the steps 3 5 and 6 If the radio is in non standard model please disconnect the two MS2 points on PCB and then operate the following steps 2 To select MS1 See the ...

Page 7: ...y CTCSS CDCSS channel function settings will be changed once the model is set and part of functions will also be changed Therefore do not make this operation unless it s very necessary such as changing the EEPROM etc PC Programming Mode The following parameters can be set through programming software 1 Receive frequency and transmit frequency 2 Receive signaling and transmit signaling 3 Busy chann...

Page 8: ... between transmit and receive frequency is 0 1MHz CH15 Highest frequency difference between transmit and receive frequency is 0 075MHz CH16 Center frequency transmit with 250 3Hz CTCSS signalling difference between transmit and receive frequency is 0 1MHz Note To enable or disable manual adjust mode short out the two SELF points turn on the radio to enter model set mode And then the manual adjust ...

Page 9: ... 600 501 550 501 650 0 11 220 000 239 995 21 4 230 000 230 100 220 000 220 100 239 975 239 900 230 500 230 550 230 600 230 550 230 650 1 1 240 000 259 995 21 4 250 000 250 100 240 000 240 100 259 975 259 900 250 500 250 550 250 600 250 550 250 650 1 2 336 000 367 995 21 4 352 000 352 100 336 000 336 100 367 975 367 900 352 500 352 550 352 600 352 550 352 650 1 3 368 000 395 995 21 4 382 000 382 10...

Page 10: ...z 400 420MHz 450 470MHz Figure 1 frequency configuration Receiver The receiver utilizes double conversion superheterodyne 1 Front end RF Amplifier The input signal from antenna is amplified in RF amplifier Q27 after passing through the receive transmit switch circuit and a 3 stage LC band pass filter The amplified signals are filtered by a band pass filter a 3 stage LC BPF to eliminate unwanted si...

Page 11: ...trol circuit and then is amplified to a sufficient level to drive the speaker by audio power amplifier IC8 5 Squelch Part of the audio signal from IC1 enters IC1 again and the noise component is amplified and rectified by a filter and an amplifier to produce a DC voltage corresponding to the noise level The DC signal from IC1 goes to the analog port of the microprocessor IC11 IC11 determines wheth...

Page 12: ... counter The divided signal is compared in the phase comparator IC2 with the 2 5 KHz or 6 25 KHz reference signal The output signal from phase comparator is filtered through a low pass filter and passed to the VCO to control the oscillator frequency See figure 4 Figure 4 PLL circuit 2 VCO The operating frequency is generated by Q16 in transmit mode and by Q8 in receive mode The operation frequency...

Page 13: ...mplifier The transmit signal obtained from VCO buffer amplifier Q14 is amplified by Q15 and Q17 This amplified signal is passed to power amplifier Q32 and Q31 and is capable of producing a 4 0W RF power 4 Antenna Switch and LPF The RF amplifier output signal is passed through a low pass filter network and a transmit receive switch circuit before it is passed to the antenna terminal The transmit re...

Page 14: ...E2 PROM data cable 15 MUTE O Microphone mute control H Microphone mute L Microphone enable 16 MS1 I Model set 17 GREEN O Green light control H light 18 RED O Red light control H light 19 TXD O RS 232C output 20 RXD I RS 233C input 21 PTTK I PTT key input 22 MS2 I Standard model select H Non standard L Standard 23 RXC O Receiver power control L power on 24 NC 25 RESET I Reset input 26 SELF I Self p...

Page 15: ...trol 40 AFP O Audio power control 41 TONE5 O CTCSS code output 42 TONE4 O CTCSS code output 43 TONE3 O CTCSS code output 44 TONE2 O CTCSS code output 45 TONE1 O CTCSS code output 46 TONE0 O CTCSS code output 47 WNTC O W N L Wide H Narrow 47 70 NC 71 Vcc I Power input 5V 72 VREF I A D converse reference voltage 73 Avss I A D GND 74 77 NC 78 NC 79 NC 80 NC ...

Page 16: ...10Ω 1 R82 B2E 23 3001061010000 Chip resistor 0603 100Ω 1 R127 B1E 24 3001061010000 Chip resistor 0603 100Ω 1 R147 B2F 25 3001061010000 Chip resistor 0603 100Ω 1 R74 B4G 26 3001061010000 Chip resistor 0603 100Ω 1 R75 B2A 27 3001061010000 Chip resistor 0603 100Ω 1 R76 B1F 28 3001061010000 Chip resistor 0603 100Ω 1 R90 T5H 29 3001061020010 Chip resistor 0603 1KΩ 1 R203 T2E 30 3001061020010 Chip resis...

Page 17: ...4 3001061240010 Chip resistor 0603 120KΩ 1 R154 T4F 75 3001061240010 Chip resistor 0603 120KΩ 1 R72 B4G 76 3001061510000 Chip resistor 0603 150Ω 1 R5 B2F 77 3001061510000 Chip resistor 0603 150Ω 1 R68 B4F 78 3001061510000 Chip resistor 0603 150Ω 1 R92 T3E 79 3001061520000 Chip resistor 0603 1 5KΩ 1 R146 B2G 80 3001061520000 Chip resistor 0603 1 5KΩ 1 R48 B3F 81 3001061520000 Chip resistor 0603 1 5...

Page 18: ...5J 127 3001063310010 Chip resistor 0603 330Ω 1 R118 B4B 128 3001063310010 Chip resistor 0603 330Ω 1 R122 B3D 129 3001063310010 Chip resistor 0603 330Ω 1 R62 B4B 130 3001063320000 Chip resistor 0603 3 3KΩ 1 R130 B2I 131 3001063320000 Chip resistor 0603 3 3KΩ 1 R25 B2I 132 3001063320000 Chip resistor 0603 3 3KΩ 1 R26 B2G 133 3001063320000 Chip resistor 0603 3 3KΩ 1 R27 B4E 134 3001063320000 Chip res...

Page 19: ...620010 Chip resistor 0603 5 6KΩ 1 R79 B4G 181 3001065630000 Chip resistor 0603 56KΩ 1 R101 B2C 182 3001065630000 Chip resistor 0603 56KΩ 1 R149 B3F 183 3001065640000 Chip resistor 0603 560KΩ 1 R148 B2G 184 3001066810010 Chip resistor 0603 680Ω 1 R126 B2G 185 3001066810010 Chip resistor 0603 680Ω 1 R47 B2G 186 3001066820000 Chip resistor 0603 6 8KΩ 1 R117 B5I 187 3001066820000 Chip resistor 0603 6 ...

Page 20: ...ip capacitor 0402 100PF 1 C213 T3E 234 3101051010030 Chip capacitor 0402 100PF 1 C237 T1H 235 3101051020010 Chip capacitor 0402 1000PF 1 C109 B4H 236 3101051020010 Chip capacitor 0402 1000PF 1 C110 B4H 237 3101051020010 Chip capacitor 0402 1000PF 1 C111 B2D 238 3101051020010 Chip capacitor 0402 1000PF 1 C113 B4I 239 3101051020010 Chip capacitor 0402 1000PF 1 C114 B3D 240 3101051020010 Chip capacit...

Page 21: ...1 C209 T2E 286 3101051040060 Chip capacitor 0402 0 1UF 1 C210 T2E 287 3101051040060 Chip capacitor 0402 0 1UF 1 C233 B2F 288 3101051040060 Chip capacitor 0402 0 1UF 1 C245 B2I 289 3101051040060 Chip capacitor 0402 0 1UF 1 C37 B2I 290 3101051040060 Chip capacitor 0402 0 1UF 1 C38 B2H 291 3101051040060 Chip capacitor 0402 0 1UF 1 C39 B2G 292 3101051040060 Chip capacitor 0402 0 1UF 1 C40 T2F 293 3101...

Page 22: ...3101053330000 Chip capacitor 0402 0 033UF 1 C152 B2I 340 3101053330000 Chip capacitor 0402 0 033UF 1 C153 B2I 341 3101053330000 Chip capacitor 0402 0 033UF 1 C156 B1I 342 3101053330000 Chip capacitor 0402 0 033UF 1 C160 B3G 343 3101053330000 Chip capacitor 0402 0 033UF 1 C161 T2C 344 3101053340000 Chip capacitor 0402 0 33UF 1 C126 B5J 345 3101053900000 Chip capacitor 0402 39PF 1 C56 B3F 346 310105...

Page 23: ...000PF 1 R111 B2F 393 3101061030010 Chip capacitor 0603 0 01UF 1 C123 B5I 394 3101061030010 Chip capacitor 0603 0 01UF 1 C90 B5G 395 3101061040010 Chip capacitor 0603 0 1UF 1 C48 T4G 396 3101061040010 Chip capacitor 0603 0 1UF 1 C49 T4G 397 3101061500010 Chip capacitor 0603 15PF 1 C145 B1A 398 3101063330030 Chip capacitor 0603 0 033UF 1 R112 B3I 399 3101071020010 Chip capacitor 0805 1000PF 1 L36 B1...

Page 24: ...306682000 Multi layer chip inductor 0603 6 8uH 1 L6 B4G 445 3215007820000 Multi layer chip inductor 0805 82nH 1 L32 B2F 446 3215007820000 Multi layer chip inductor 0805 82nH 1 L39 B1F 447 3215107180000 Bobbin inductor 0805 18nH 1 L3 B3C 448 3215107390000 Bobbin inductor 0805 39nH 1 L33 B2D 449 3215107680000 Bobbin inductor 0805 68nH 1 L31 B2D 450 3215107680000 Bobbin inductor 0805 68nH 1 L34 B1F 4...

Page 25: ...N N TR 1 Q1 B5E 497 3403009000010 Transistor UMG3N N TR 1 Q2 B4E 498 3406001000090 Transistor 2SC4988FRTR 1 Q17 B3D 499 3408002000030 Transistor 2SC4226 R24 1 Q15 B4G 500 3411002000020 Transistor 2SC5343EG 1 Q18 B4G 501 3411002000020 Transistor 2SC5343EG 1 Q19 B2J 502 3411002000020 Transistor 2SC5343EG 1 Q20 B2J 503 3411002000020 Transistor 2SC5343EG 1 Q24 T5F 504 3411002000020 Transistor 2SC5343E...

Page 26: ...ty Ref No Address 527 3609004005280 Reset IC PST9140NR 1 IC9 T2A 528 3610004000340 SCM M38223M4A 1 IC11 T3C 529 3612031004400 Memory AT24C08AN 1 IC5 T5B 530 3701737230040 Crystal oscillator 7 3728MHz 1 X3 T3B 531 4100500101930 TC 500V PCB FR4 1 0T 4L 4P 1 ...

Page 27: ...127 B1E 24 3001061010000 Chip resistor 0603 100Ω 1 R147 B2F 25 3001061010000 Chip resistor 0603 100Ω 1 R74 B4G 26 3001061010000 Chip resistor 0603 100Ω 1 R75 B2A 27 3001061010000 Chip resistor 0603 100Ω 1 R76 B1F 28 3001061010000 Chip resistor 0603 100Ω 1 R90 T5H 29 3001061020010 Chip resistor 0603 1KΩ 1 R146 B2G 30 3001061020010 Chip resistor 0603 1KΩ 1 R203 T2E 31 3001061020010 Chip resistor 060...

Page 28: ...B 76 3001061050010 Chip resistor 0603 1MΩ 1 R116 T3B 77 3001061050010 Chip resistor 0603 1MΩ 1 R197 T2G 78 3001061240010 Chip resistor 0603 120KΩ 1 R11 B4I 79 3001061240010 Chip resistor 0603 120KΩ 1 R150 B2F 80 3001061240010 Chip resistor 0603 120KΩ 1 R72 B4G 81 3001061510000 Chip resistor 0603 150Ω 1 R115 B5J 82 3001061510000 Chip resistor 0603 150Ω 1 R5 B2F 83 3001061510000 Chip resistor 0603 1...

Page 29: ...3H 129 3001063310010 Chip resistor 0603 330Ω 1 R118 B4B 130 3001063310010 Chip resistor 0603 330Ω 1 R122 B3D 131 3001063310010 Chip resistor 0603 330Ω 1 R62 B4B 132 3001063320000 Chip resistor 0603 3 3KΩ 1 R130 B2I 133 3001063320000 Chip resistor 0603 3 3KΩ 1 R25 B2I 134 3001063320000 Chip resistor 0603 3 3KΩ 1 R26 B2G 135 3001063320000 Chip resistor 0603 3 3KΩ 1 R27 B4E 136 3001063320000 Chip res...

Page 30: ...00 Chip resistor 0603 56KΩ 1 R149 B3F 183 3001065640000 Chip resistor 0603 560KΩ 1 R148 B2G 184 3001066810010 Chip resistor 0603 680Ω 1 R126 B2G 185 3001066810010 Chip resistor 0603 680Ω 1 R47 B2G 186 3001066820000 Chip resistor 0603 6 8KΩ 1 R85 T4F 187 3001066830000 Chip resistor 0603 68KΩ 1 R101 B2C 188 3001066830000 Chip resistor 0603 68KΩ 1 R157 T4F 189 3001066830000 Chip resistor 0603 68KΩ 1 ...

Page 31: ...p capacitor 0402 100PF 1 C180 B4J 236 3101051010030 Chip capacitor 0402 100PF 1 C213 T3E 237 3101051010030 Chip capacitor 0402 100PF 1 C237 T1H 238 3101051020010 Chip capacitor 0402 1000PF 1 C109 B4H 239 3101051020010 Chip capacitor 0402 1000PF 1 C110 B4H 240 3101051020010 Chip capacitor 0402 1000PF 1 C111 B2D 241 3101051020010 Chip capacitor 0402 1000PF 1 C113 B4I 242 3101051020010 Chip capacitor...

Page 32: ...F 1 C8 B2J 288 3101051030020 Chip capacitor 0402 0 01UF 1 C9 T5F 289 3101051040060 Chip capacitor 0402 0 1UF 1 C178 T2B 290 3101051040060 Chip capacitor 0402 0 1UF 1 C209 T2E 291 3101051040060 Chip capacitor 0402 0 1UF 1 C210 T2E 292 3101051040060 Chip capacitor 0402 0 1UF 1 C233 B2F 293 3101051040060 Chip capacitor 0402 0 1UF 1 C245 B2I 294 3101051040060 Chip capacitor 0402 0 1UF 1 C37 B2I 295 31...

Page 33: ...41 3101053330000 Chip capacitor 0402 0 033UF 1 C153 B2I 342 3101053330000 Chip capacitor 0402 0 033UF 1 C156 B1I 343 3101053330000 Chip capacitor 0402 0 033UF 1 C160 B3G 344 3101053330000 Chip capacitor 0402 0 033UF 1 C161 T2C 345 3101053340000 Chip capacitor 0402 0 33UF 1 C126 B5J 346 3101053900000 Chip capacitor 0402 39PF 1 C136 B2C 347 3101053900000 Chip capacitor 0402 39PF 1 C138 B3C 348 31010...

Page 34: ...1 C145 B1A 395 3101062210000 Chip capacitor 0603 220PF 1 C19 B5H 396 3101063930000 Chip capacitor 0603 0 039UF 1 R112 B3I 397 3101065620010 Chip capacitor 0603 5600PF 1 R198 T4E 398 3101071020010 Chip capacitor 0805 1000PF 1 L36 B1E 399 3101071040000 Chip capacitor 0805 0 1UF 1 C194 T4H 400 3102992000000 Trimmer capacitor 3 2 2 5 1 25mm 1 TC2 B5H 401 3102992000040 Trimmer capacitor 3 2 2 5 1 25mm ...

Page 35: ... L32 B2F 446 3215007820000 Multi layer chip inductor 0805 82nH 1 L39 B1F 447 3215107180000 Bobbin inductor 0805 18nH 1 L3 B3C 448 3215107390000 Bobbin inductor 0805 39nH 1 L33 B2D 449 3215107680000 Bobbin inductor 0805 68nH 1 L34 B1F 450 3215107680000 Bobbin inductor 0805 68nH 1 L35 B2F 451 3215107680000 Bobbin inductor 0805 68nH 1 L38 B2E 452 3215107680000 Bobbin inductor 0805 68nH 1 L31 B2D 453 ...

Page 36: ...1000090 Transistor 2SC4988FRTR E 1 Q17 B3D 499 3408002000030 Transistor 2SC4226 R24 A 1 Q15 B4G 500 3411002000020 Transistor 2SC5343EG 1 Q18 B4G 501 3411002000020 Transistor 2SC5343EG 1 Q19 B2J 502 3411002000020 Transistor 2SC5343EG 1 Q20 B2J 503 3411002000020 Transistor 2SC5343EG 1 Q24 T5F 504 3411002000020 Transistor 2SC5343EG 1 Q25 T5F 505 3411002000020 Transistor 2SC5343EG 1 Q26 T4G 506 349900...

Page 37: ...ion Qty Ref No Address 527 3609004005280 Reset IC PST9140NR 1 IC9 T2A 528 3610004000340 SCM 1 IC11 T3C 529 3612031004400 Memory AT24C08AN 1 IC5 T5B 530 3701737230040 Crystal oscillator 7 3728MHz 1 X3 T3B 531 4100500101930 TC 500V PCB FR4 1 0T 4L 4P 1 ...

Page 38: ...96 B4G 24 3001061000000 Chip resistor 0603 10Ω 1 R80 B2D 25 3001061000000 Chip resistor 0603 10Ω 1 R82 B4G 26 3001061010000 Chip resistor 0603 100Ω 1 R127 B5F 27 3001061010000 Chip resistor 0603 100Ω 1 R147 B4E 28 3001061010000 Chip resistor 0603 100Ω 1 R74 B2C 29 3001061010000 Chip resistor 0603 100Ω 1 R75 B4J 30 3001061010000 Chip resistor 0603 100Ω 1 R76 B5E 31 3001061010000 Chip resistor 0603 ...

Page 39: ... 3001061240010 Chip resistor 0603 120KΩ 1 R72 B2D 77 3001061510000 Chip resistor 0603 150Ω 1 R68 B2E 78 3001061510000 Chip resistor 0603 150Ω 1 R69 B2C 79 3001061510000 Chip resistor 0603 150Ω 1 R92 T3E 80 3001061520000 Chip resistor 0603 1 5KΩ 1 R48 B3E 81 3001061520000 Chip resistor 0603 1 5KΩ 1 R50 T5F 82 3001061520000 Chip resistor 0603 1 5KΩ 1 R55 T2E 83 3001061530010 Chip resistor 0603 15KΩ ...

Page 40: ...6 B4D 129 3001063320000 Chip resistor 0603 3 3KΩ 1 R27 B2F 130 3001063320000 Chip resistor 0603 3 3KΩ 1 R28 B1F 131 3001063320000 Chip resistor 0603 3 3KΩ 1 R29 B2D 132 3001063320000 Chip resistor 0603 3 3KΩ 1 R30 B2E 133 3001063320000 Chip resistor 0603 3 3KΩ 1 R31 B3G 134 3001063320000 Chip resistor 0603 3 3KΩ 1 R32 B5E 135 3001063320000 Chip resistor 0603 3 3KΩ 1 R33 T5F 136 3001063320000 Chip ...

Page 41: ...000 Chip resistor 0603 68KΩ 1 R128 B3B 183 3001066830000 Chip resistor 0603 68KΩ 1 R198 T4E 184 3001066840000 Chip resistor 0603 680KΩ 1 R1 B4B 185 3001066840000 Chip resistor 0603 680KΩ 1 R134 B3C 186 3001067540000 Chip resistor 0603 750KΩ 1 R160 T4G 187 3001068200000 Chip resistor 0603 82Ω 1 R171 B1D 188 3001068210010 Chip resistor 0603 820Ω 1 R47 B4D 189 3001068210010 Chip resistor 0603 820Ω 1 ...

Page 42: ...capacitor 0402 10PF 1 C130 B3B 236 3101051000020 Chip capacitor 0402 10PF 1 C135 B3E 237 3101051000020 Chip capacitor 0402 10PF 1 C144 T4F 238 3101051000020 Chip capacitor 0402 10PF 1 C187 B2C 239 3101051000020 Chip capacitor 0402 10PF 1 C189 B2C 240 3101051000020 Chip capacitor 0402 10PF 1 C253 B3A 241 3101051000020 Chip capacitor 0402 10PF 1 C255 B3B 242 3101051010030 Chip capacitor 0402 100PF 1...

Page 43: ...F 1 C243 T3J 288 3101051030020 Chip capacitor 0402 0 01UF 1 C3 B4B 289 3101051030020 Chip capacitor 0402 0 01UF 1 C4 B4C 290 3101051030020 Chip capacitor 0402 0 01UF 1 C5 B1F 291 3101051030020 Chip capacitor 0402 0 01UF 1 C7 B2C 292 3101051030020 Chip capacitor 0402 0 01UF 1 C8 B4A 293 3101051030020 Chip capacitor 0402 0 01UF 1 C9 T5F 294 3101051040060 Chip capacitor 0402 0 1UF 1 C178 T2B 295 3101...

Page 44: ...C126 B1B 341 3101053340000 Chip capacitor 0402 0 33UF 1 C133 B4G 342 3101053900000 Chip capacitor 0402 39PF 1 C138 B3H 343 3101053920000 Chip capacitor 0402 3900PF 1 C181 T2C 344 3101053930000 Chip capacitor 0402 0 039UF 1 C122 T2E 345 3101054700010 Chip capacitor 0402 47PF 1 C55 B3I 346 3101054710010 Chip capacitor 0402 470PF 1 C116 T2H 347 3101054710010 Chip capacitor 0402 470PF 1 C149 B2G 348 3...

Page 45: ...3 22PF 1 C506 B3I 395 3101063690000 Chip capacitor 0603 3 6PF 1 C93 B4E 396 3101064700000 Chip capacitor 0603 47PF 1 C19 B1C 397 3101064710000 Chip capacitor 0603 470PF 1 R111 B4E 398 3101064710000 Chip capacitor 0603 470PF 1 R150 B5F 399 3102992000040 Trimmer capacitor 3 2 2 5 1 25mm 1 TC1 B1D 400 3102992000040 Trimmer capacitor 3 2 2 5 1 25mm 1 TC2 B1C 401 3102992000040 Trimmer capacitor 3 2 2 5...

Page 46: ...46 B2C 447 3213306332000 Multi layer chip inductor 0603 3 3uH 1 L5 B2E 448 3221506601000 Chip ferrite bead 0603 600Ω 25 1 L12 B3G 449 3221506601000 Chip ferrite bead 0603 600Ω 25 1 L13 B2B 450 3221506601000 Chip ferrite bead 0603 600Ω 25 1 L6 B2D 451 3221506601000 Chip ferrite bead 0603 600Ω 25 1 L7 B2D 452 3221506601000 Chip ferrite bead 0603 600Ω 25 1 L8 B1A 453 3221507221000 Chip ferrite bead 0...

Page 47: ... 499 3404002000000 Transistor PRF957 1 Q16 B1D 500 3406001000090 Transistor 2SC4988FRTR 1 Q17 B3G 501 3408002000030 Transistor 2SC4226 R24 1 Q15 B2D 502 3411002000020 Transistor 2SC5343EG 1 Q18 B2D 503 3411002000020 Transistor 2SC5343EG 1 Q19 B4A 504 3411002000020 Transistor 2SC5343EG 1 Q20 B4A 505 3411002000020 Transistor 2SC5343EG 1 Q24 T5F 506 3411002000020 Transistor 2SC5343EG 1 Q25 T5F 507 34...

Page 48: ... 500 Service Manual 47 No Material No Description Qty Ref No Address 529 3701012850010 TCXO 12 8MHz 1 X4 B3A 530 3701737230040 Crystal oscillator 7 3728MHz 1 X3 T3B 531 4100500101650 TC 500US U PCB FR4 1 ...

Page 49: ...82 B4G 24 3001061010000 Chip resistor 0603 100Ω 1 R127 B5F 25 3001061010000 Chip resistor 0603 100Ω 1 R147 B4E 26 3001061010000 Chip resistor 0603 100Ω 1 R74 B2C 27 3001061010000 Chip resistor 0603 100Ω 1 R75 B4J 28 3001061010000 Chip resistor 0603 100Ω 1 R76 B5E 29 3001061010000 Chip resistor 0603 100Ω 1 R90 T5H 30 3001061020010 Chip resistor 0603 1KΩ 1 R203 T2E 31 3001061020010 Chip resistor 060...

Page 50: ...3001061520000 Chip resistor 0603 1 5KΩ 1 R187 T2G 77 3001061520000 Chip resistor 0603 1 5KΩ 1 R31 B3G 78 3001061520000 Chip resistor 0603 1 5KΩ 1 R48 B3E 79 3001061520000 Chip resistor 0603 1 5KΩ 1 R50 T5F 80 3001061520000 Chip resistor 0603 1 5KΩ 1 R55 T2E 81 3001061520000 Chip resistor 0603 1 5KΩ 1 R81 B3F 82 3001061530010 Chip resistor 0603 15KΩ 1 R161 T4F 83 3001061530010 Chip resistor 0603 15...

Page 51: ...26 B4D 129 3001063320000 Chip resistor 0603 3 3KΩ 1 R27 B2F 130 3001063320000 Chip resistor 0603 3 3KΩ 1 R28 B1F 131 3001063320000 Chip resistor 0603 3 3KΩ 1 R29 B2D 132 3001063320000 Chip resistor 0603 3 3KΩ 1 R30 B2E 133 3001063320000 Chip resistor 0603 3 3KΩ 1 R32 B5E 134 3001063320000 Chip resistor 0603 3 3KΩ 1 R33 T5F 135 3001063320000 Chip resistor 0603 3 3KΩ 1 R34 B2D 136 3001063320000 Chip...

Page 52: ...0000 Chip resistor 0603 6 8KΩ 1 R117 B1B 183 3001066820000 Chip resistor 0603 6 8KΩ 1 R186 T2G 184 3001066820000 Chip resistor 0603 6 8KΩ 1 R85 T4F 185 3001066830000 Chip resistor 0603 68KΩ 1 R157 T4F 186 3001066830000 Chip resistor 0603 68KΩ 1 R198 T4E 187 3001066830000 Chip resistor 0603 68KΩ 1 R618 B5F 188 3001066840000 Chip resistor 0603 680KΩ 1 R1 B4B 189 3001066840000 Chip resistor 0603 680K...

Page 53: ...00010 Chip capacitor 0402 6PF 1 C97 B2E 236 3101050600010 Chip capacitor 0402 6PF 1 C98 B3G 237 3101050700010 Chip capacitor 0402 7PF 1 C102 B4I 238 3101050800000 Chip capacitor 0402 8PF 1 C139 B4I 239 3101050800000 Chip capacitor 0402 8PF 1 C141 B4I 240 3101050800000 Chip capacitor 0402 8PF 1 C142 B4I 241 3101050800000 Chip capacitor 0402 8PF 1 C193 B1D 242 3101050800000 Chip capacitor 0402 8PF 1...

Page 54: ...1 T1B 288 3101051030020 Chip capacitor 0402 0 01UF 1 C12 B3I 289 3101051030020 Chip capacitor 0402 0 01UF 1 C137 T2I 290 3101051030020 Chip capacitor 0402 0 01UF 1 C2 B4B 291 3101051030020 Chip capacitor 0402 0 01UF 1 C240 T3J 292 3101051030020 Chip capacitor 0402 0 01UF 1 C241 T3J 293 3101051030020 Chip capacitor 0402 0 01UF 1 C242 T3J 294 3101051030020 Chip capacitor 0402 0 01UF 1 C243 T3J 295 3...

Page 55: ...1 3101053330000 Chip capacitor 0402 0 033UF 1 C152 B4B 342 3101053330000 Chip capacitor 0402 0 033UF 1 C153 B4B 343 3101053330000 Chip capacitor 0402 0 033UF 1 C160 B3D 344 3101053330000 Chip capacitor 0402 0 033UF 1 C44 B4B 345 3101053340000 Chip capacitor 0402 0 33UF 1 C126 B1B 346 3101053340000 Chip capacitor 0402 0 33UF 1 C133 B4G 347 3101053920000 Chip capacitor 0402 3900PF 1 C181 T2C 348 310...

Page 56: ...03 1000PF 1 C72 B3D 395 3101061040010 Chip capacitor 0603 0 1UF 1 C48 T4G 396 3101061040010 Chip capacitor 0603 0 1UF 1 C49 T4G 397 3101061040010 Chip capacitor 0603 0 1UF 1 R200 B2B 398 3101061300000 Chip capacitor 0603 13PF 1 C506 B3I 399 3101061800000 Chip capacitor 0603 18PF 1 C19 B1C 400 3101064710000 Chip capacitor 0603 470PF 1 R111 B4E 401 3101064710000 Chip capacitor 0603 470PF 1 R150 B5F ...

Page 57: ... 3213306102000 Multi layer chip inductor 0603 1uH 1 R96 B2B 448 3213306221010 Multi layer chip inductor 0603 0 22uH 1 L41 T2E 449 3213306332000 Multi layer chip inductor 0603 3 3uH 1 L46 B2C 450 3213306332000 Multi layer chip inductor 0603 3 3uH 1 L5 B2E 451 3221506601000 Chip ferrite bead 0603 600Ω 25 1 L12 B3G 452 3221506601000 Chip ferrite bead 0603 600Ω 25 1 L13 B2B 453 3221506601000 Chip ferr...

Page 58: ...L 1 Q30 B2J 499 3403008000010 Transistor DTC114EE TL 1 Q35 T2B 500 3403008000010 Transistor DTC114EE TL 1 Q36 T2G 501 3403008000070 Transistor DTC144EE TL 1 Q12 T2F 502 3403009000010 Transistor UMG3N N TR 1 Q1 B1F 503 3403009000010 Transistor UMG3N N TR 1 Q2 B2F 504 3404002000000 Transistor PRF957 1 Q16 B1D 505 3406001000090 Transistor 2SC4988FRTR E 1 Q17 B3G 506 3408002000030 Transistor 2SC4226 R...

Page 59: ...0 Operational amplifier NJM2904V 1 IC6 T2H 532 3608015000000 Power management IC voltage regulator 1 IC4 T1D 533 3609004005280 Reset IC PST9140NR 1 IC9 T2A 534 3610004000340 SCM M38223M4A 1 IC11 T3C 535 3612031004400 Memory AT24C08AN 1 IC5 T5B 536 3701012850010 TCXO 12 8MHz 1 X4 B3A 537 3701737230020 Crystal 7 3728MHz DSX530GA 1 X3 T3B 538 4100500101650 TC 500US U PCB FR4 1 0 4L 4P 1 ...

Page 60: ...for details 2 Adjustment Some items can be adjusted in conventional communication mode and the others in manual adjust mode Turn on the radio the radio enters conventional communication mode If manual adjust mode is enabled turn on the radio while holding down PTT and MONI keys simultaneously the radio enters manual adjust mode after 2 seconds Refer to the section Software Specification VCO Item C...

Page 61: ... Radio Communication Test Set 118dBm MOD 1KHz DEV 3kHz Wide 1 5kHz Narrow FILER 0 3 3 4kHz ANT Speaker Jack Check SINAD 12dB or higher 2 RX Low Turn to CH14 in manual adjust mode long press MONI key to switch N W 3 RX High Turn to CH15 in manual adjust mode long press MONI key to switch N W 6 Squelch 1 RX Center Turn to CH2 in manual adjust mode Adjust by pressing PTT or MONI Radio Communic ation ...

Page 62: ... to switch N W Radio Communication Test Set FILTER FILER 0 3 3 4kHz Audio 1kHz 12 2mV ANT MIC Jack Check deviation 3 0kHz Wide 1 5 kHz narrow 10 CTCSS Balance 1 TX Center CTCSS 67 0Hz Turn to CH4 in manual adjust mode Radio Communication Test Set LPF 300Hz ANT VR3 Adjust VR3 deviation tested on condition 1 and condition 2 are consistent the difference 200Hz 67 0Hz CTCSS 2 TX Center CTCSS 250 3Hz T...

Page 63: ...in manual adjust mode Adjust the power supply voltage at 5 3V Adjust by pressing PTT or MONI Digital Voltmeter Adjust the level to make LED just flash Note In manual adjust mode when Channel Selector Knob is positioned at channel 1 channel16 Microphone jack can t connect with external cables After adjustment is completed short out the two SELF points and then turns the radio on the radio will ente...

Page 64: ... from the radio in the direction of arrow As shown in figure 1 Figure 1 Disassemble main unit aluminum chassis and PCB 1 Remove the two screws at the base of the chassis 2 Pull the Channel Selector Knob and the Volume Control Knob off 3 Remove the antenna at top of the radio 4 Remove the screws of the microphone jack cover and pull the jack cover off As shown in figure 2 Figure 2 Volume Control Kn...

Page 65: ...Figure 3 The disassembly is shown as the figure 4 Figure 4 Disassemble PTT Key Push the PTT key in the direction of arrow until it is out of the cover Shown in figure 5 Figure 5 Assemble PTT Key Paste dual adhesive tape to the cover And then press the PTT key into the corresponding opening in the cover As shown in figure 6 ...

Page 66: ...65 Figure 6 Attach the battery 1 Fit the extensions at the bottom of the battery into the slots on the radio chassis 2 Press the top part of the battery towards the radio until a click is heard As shown in figure 7 Figure 7 ...

Page 67: ...TC 500 Service Manual 66 Exploded View 36 37 38 39 40 22 27 26 29 28 32 41 42 35 1 34 44 45 43 ...

Page 68: ... positive electrode piece 1 17 6100034000000 Waterproof ring 1 18 7500114000000 Heat sinking pad 1 19 6300052000000 Aluminum chassis 1 20 4400100008000 Antenna pedestal 1 21 6000051000030 Rear cover 1 22 7000139000000 Latch spring 1 23 6000039000000 Battery latch 1 24 7400014010020 Water proof PVC sheet battery 1 25 6201022000000 Negative electrode piece battery 1 26 5205000000280 Speaker jack 1 2...

Page 69: ...TC 500 Service Manual 68 Packing O wn er sM an u al Antenna Strap Belt Clip Adapter Gift Box Owner s Manual Main Unit Charger Battery Pack ...

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Page 74: ...31 PLL DATA Q32 Q17 DRIVE AMP Q14 ANT SW Q16 D5 D6 TX VCO PLL CLK PLL EN BPF IF AMP AMP A BPF CPU TI AMP Q26 D3 D2 DEV Q21 POWER SW 21 4MHz Q25 Q24 X2 TC 500 Block Diagram Q15 AMP BUFF AMP DEV KB8825 RED Q28 IC5 SW EEPROM 7 3728MHz Q30 GREEN BUSY LAMP RESET IC9 PTT 9140MR MONI SW VR2 D18 5V CPU TIBI 5V REG POWER IC4 D19 DEV CPU MUTE AGC IC3 CPU MUTE POWER IF IC BATT CDI CFI AMP ANT SW LPF D12 LPF ...

Page 75: ... 5K R147 100Ω R148 560K R49 2 7K R149 56k C6 NC R5 150Ω Q29 2SK1824 Q23 3SK318 L37 1uH C73 1000P C56 39P C74 1000P C108 NC C135 33P L25 100nH R610 47K R40 10K TP2 21 4MHz MIXER VR1 C163 2P C104 15P C105 20P C164 4P R145 47K C165 2 2uF R609 47K R33 3 3K R608 47K R607 47K R606 47K Q24 2SC5343EG C243 0 01uF C242 0 01uF C241 0 01uF R152 39K C240 0 01uF R41 10K R155 1 8M R42 10K R156 1 8M R157 68K R158...

Page 76: ...Mic MIC1 TC3 10P TC4 10P L38 3T J3 SPK 4Ω VR2 47K R58 1K R18 100K L41 0 22u R19 NC R20 NC R21 NC L42 NC X3 C175 33p C176 33P C78 1000p R59 1K C79 1000P OUT IN GND IC4 XC6201P502PR D20 0 C80 1000P C177 15u 6 3V R167 220K R22 470K C81 1000P R43 330K R 6 0 1 K R61 1K R99 4 7K R121 4 7K R87 4 7K C170 NC C11 0 01u Q28 DTC114EE C82 1000P R44 10K R62 470 Q30 DTC114EE R118 470 R45 10K C83 1000P 1 2 3 4 5 ...

Page 77: ...e 20 50 Dimensions H W D with battery without antenna 109 54 34mm Weight with antenna battery 270g Receiver Sensitivity 0 25uV 25kHz 0 28uV 12 5kHz Selectivity 55 dB W 50dB N Intermodulation 50dB Rated Audio Power Output 400mW 4Ω Rated Audio Distortion 5 Transmitter RF Power Output H 3 3W L 2W 0 9W Spurious and Harmonics 21dBm Modulation Limiting 5 2 5KHz FM Noise 40dB Modulation Distortion 5 All ...

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