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Contents

General……………………………………………………………………………

Brief Introduction………………………………………………………………

Software Specification………………………………………………………….

Circuit Description……………………………………………………………

CPU Pins…………………………………………………………………………

Part List 1………………………………………………………………………

Adjustment Description……………………………………………………….

Trouble-shooting Chart……………………………………………………….

Disassembly and Assembly for Repair……………………………………

Exploded View…………………………………………………………………..

Part List 2………………………………………………………………………...

Packing…………………………………………………………………………..

PC Board View…………………………………………………………………

Level Diagram…………………………………………………………………

Schematic Diagram…………………………………………………………….

Description of TC-700 Desktop Charger……………………………………

Specifications…………………………………………………………………...

Содержание TC-700

Страница 1: ...n Circuit Description CPU Pins Part List 1 Adjustment Description Trouble shooting Chart Disassembly and Assembly for Repair Exploded View Part List 2 Packing PC Board View Level Diagram Schematic Dia...

Страница 2: ...ure and any open connectors are properly terminated z SHUT OFF and do not operate this equipment near electrical blasting caps or in an explosive atmosphere z When in vehicles with an airbag do not pl...

Страница 3: ...nsmit receive mode Press and hold PTT radio operates in transmit mode Release PTT radio returns to receive mode 2 SK1 Key Side Key1 programmable key 3 SK2 Key Side Key2 programmable key 4 Antenna 5 Mi...

Страница 4: ...the radio off Increase or decrease volume by adjusting the volume control accordingly 10 LED Indicator Red LED glows while transmitting green LED glows while receiving red LED flashes when the battery...

Страница 5: ...DC2400TM Encode Decode 10 HDC1200 Encode Decode 11 Squelch Mode 1 Carrier 2 CDCSS CTCSS 3 Optional Signalling 4 CTCSS CDCSS AND 2 Tone 5 Tone HDC2400TM HDC1200 5 CTCSS CDCSS OR 2 Tone 5 Tone HDC2400TM...

Страница 6: ...ency MHZ TX Frequency MHZ Signaling Power Channel Spacing 1 RX1 TX1 None H 25KHZ 2 RX3 TX3 None H 25KHZ 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...

Страница 7: ...down PTT on the source radio to begin cloning During cloning the LED of the source radio glows red and that of the target radio glows green The LED of the source radio goes out in case of successful...

Страница 8: ...usly 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 items is selected when the radio enters the manual adjus...

Страница 9: ...n CENTER 136 5Hz 3 point tuning wideband 1 point tuning 1 point tuning narrowband 6 CTCSS deviation HIGH 254 1Hz 3 point tuning wideband 1 point tuning 1 point tuning narrowband 7 AK2346 audio deviati...

Страница 10: ...6 volume RX 1 point tuning wideband 1 point tuning 1 point tuning narrowband 3 Squelch level 3 OPEN 5 point tuning wideband 1 point tuning 1 point tuning narrowband 4 Squelch level 3 SQUELCH 5 point t...

Страница 11: ...3 supplies 5V C5V voltage for the shared circuit IC502 supplies voltage for the transmit receive circuit In transmit mode T5C becomes low voltage and Q502 is turned on to supply 5V T5v voltage for the...

Страница 12: ...equency D301 D302 D303 and D304 in transmit mode and D307 D308 D309 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 a...

Страница 13: ...or and to choose ceramic filter CF201 wideband or CF202 narrowband to filter useless spurious signal 5 AF Amplifier The resulting AF signal from IC204 enters base band processing chip IC408 The proces...

Страница 14: ...1 1 2 The output voltage controls FET power 5 Base Band and Signaling System The block diagram of signaling section is shown as figure 5 Fig 5 AF and Signaling Circuit 1 CTC CDC Transmit CTC CDC signa...

Страница 15: ...s for processing signal 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 i...

Страница 16: ...illator output pin 12 VSS GND I GND 13 XIN XIN I Crystal oscillator output pin 14 VCC VCC I VCC 15 P85 NMI NMI I 16 P84 INT2 AFCK I 2346 TCLK 17 P83 INT1 AUX1 O Indication for external scrambler 18 P8...

Страница 17: ...ontrol 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 57 P33 A11...

Страница 18: ...02 D2 PTT I PTT 85 P01 D1 SK1 I Side Key1 86 P00 D0 SK2 I Side Key2 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...

Страница 19: ...TC 700 Part List 1 18 TC 700 Part List 1...

Страница 20: ...des will be automatically activated when reset is completed Refer to All Reset Mode in Software Specification for more details VCO Measurement Adjustment Item Condition Test Instrument Terminal Parts...

Страница 21: ...st 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...

Страница 22: ...de Turn to CH3 Adjust at 3 point wideband 1 point medium band and 1 point narrowband respectively PTT key increase SK1 key decrease No adjustment 3 CDCSS deviation Enter the adjust mode Turn to CH3 Ad...

Страница 23: ...n to CH8 Adjust at 1 point wideband 1 point medium band 1 point narrow band PTT key increase SK1 key decrease Adjust deviation to 3 2KHz wideband 2 5KHz medium band and 1 8KHz narrowband respectively...

Страница 24: ...CH13 Adjust at 5 point wideband PTT key increase SK1 key decrease Adjust power to 5W 4W 0 1W VHF 5W UHF 4W Group 1 12 TX voltage Low Enter the adjust mode Turn to CH14 Adjust at 1 point wideband Radi...

Страница 25: ...Level 3 SQUELCH Enter the adjust mode Turn to CH4 Adjust at 5 point wideband 1 point medium band and 1 point narrowband respectively Save Adjust level to 125dBm press PTT to save 5 Squelch Level 9 OPE...

Страница 26: ...eck The RF circuit 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 o...

Страница 27: ...ge Q306 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 po...

Страница 28: ...offset 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...

Страница 29: ...IC is 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 output...

Страница 30: ...Fig 2 1 Remove the three screws on the fixing ring of the speaker and take out the fixing ring Note be careful not to snap the speaker s lead wire 2 Take out the speaker and water proof gasket Fig 2...

Страница 31: ...2 Attach speaker and its water proof ring to the corresponding place on the chassis Note ensure the speaker and the ring is securely inserted Fig 4 3 Press the stainless fixing ring on the water proof...

Страница 32: ...TC 700 Disassembly and Assembly for Repair 31 Fig 5 Fig 6...

Страница 33: ......

Страница 34: ...700 Exploded View 44 Exploded View 16 9 10 15 19 20 21 22 28 29 30 41 A 42 42 43 2 B A 1 C 14 35 34 33 32 31 11 A 23 24 1 2 3 4 5 7 6 12 13 17 18 B 40 39 38 26 E D A A A F C E 6 TX RX Unit 27 37 36 25...

Страница 35: ......

Страница 36: ...2 00 20 6100065000000 TC 700S Water proof gasket main unit 1 00 21 6100070000000 TC 700S Water proof gasket battery connector 1 00 22 5202003100010 TC 700S 3P battery connector socket 1 00 23 60001370...

Страница 37: ...front case Black 1 00 A 7101904020020 Self tapping ST1 9 4 0mm 13 00 B 7102504000300 Machine screw M2 5 4 0mm Ultra thin cross head 2 00 C 7102004520000 Self tapping ST2 0 4 5mm pan head 2 00 D 710300...

Страница 38: ...TC 700 Packing 47 Packing...

Страница 39: ......

Страница 40: ...requency switching controller for efficient and simple charge design provides over 90 efficiency rating General description of bq2000T functions The bq2000T detects the battery chemistry and proceeds...

Страница 41: ......

Страница 42: ...ve divider across the battery terminals generates this input TS Temperature sense input Input for an external battery temperature monitoring circuit An external resistive divider network with a negati...

Страница 43: ......

Страница 44: ...to an internal high temperature cutoff threshold VTCO As shown in Figure high temperature termination occurs when voltage at pin TS is less than this threshold Figure Temperature Monitoring Configurat...

Страница 45: ......

Страница 46: ...i Ion pack Otherwise different scaling is required 4 Charge Current Control The bq2000T controls the charge current through the MOD output pin The current control circuit supports a switching current...

Страница 47: ......

Страница 48: ...A and the indicator turns red The battery switches to constant voltage charging when the voltage rises to 8 4 0 1V 2 Constant voltage charging with 8 4 0 1V voltage and indicator turns red 3 Completed...

Страница 49: ......

Страница 50: ...d Weight 119 mm 54mm 46mm 400 g Receiver Reference Sensitivity 0 25 0 35 V Adjacent Channel Selectivity 70 60dB Intermodulation Rejection 65dB Spurious Response 70dB Audio Power Output 1W Frequency St...

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