Kenwood_TM-D710_serv.pdf

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1、SERVICE MAN UAL Microhone (T91-0657-25) Metallic cabinet (A01-2206-22) Panel (Main unit) (A62-1157-01) Front glass (Display) (B10-2782-12) Panel (Display) (A62-1159-01) Knob (ENC) (K29-9409-03) Knob (VOL) (K29-9377-03) x 2 Knob (SQL) (K29-9380-03) x 2 Button knob (3KEYS-L) (K29-9410-02) Button knob

2、(3KEYS-R) (K29-9411-02) Button knob (7KEYS) (K29-9412-02) Modular cable (4m) (E30-7639-05) 144/430 (440) MHz FM DUAL BANDER TM-D710A/D710E 2007-8 PRINTED IN JA PAN B51-8801-00 (N) 281 This product uses Lead Free solder.This product complies with the RoHS directive for the European market. Photo is T

3、M-D710A. CONTENTS CIRCUIT DESCRIPTION . 2 SEMICONDUCTOR DATA . 6 COMPONENTS DESCRIPTION . 9 TERMINAL FUNCTION . 10 PARTS LIST . 12 EXPLODED VIEW . 29 PACKING . 30 ADJUSTMENT . 31 PC BOARD DISPLAY UNIT (X54-3620-00) . 52 TX-RX UNIT (X57-731X-XX) . 56 INTERCONNECTION DIAGRAM . 64 SCHEMATIC DIAGRAM . 6

4、6 BLOCK DIAGRAM . 80 LEVEL DIAGRAM . 82 OPTIONAL ACCESSORIES . 84 SPECIFICATIONS . 85 This service manual details the panel section. Refer to the TM-V71A/V71E service manual (B51-8791-00) for any information which has not been covered in this TM-D710A/D710E service manual. TM-D710A/D710E 2 Document

5、Copyrights Copyright 2007 by Kenwood Corporation. All rights reserved. No part of this manual may be reproduced, translated, distributed, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, for any purpose without the prior written permission of

6、 Kenwood. Disclaimer While every precaution has been taken in the preparation of this manual, Kenwood assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. Kenwood reserves the right to make changes

7、 to any products herein at any time for improvement purposes. 1. Outline TM-D710A/D710E and TM-V71A/V71E have a common main unit. Thus, the main unit fi rmware is also common to both. The command formats of the panel connected to the main unit are different for TM-V71A/V71E and TM-D710A/ D710E. So,

8、the main unit section MPU (IC918) judges the type of the panel connected, when power is turned on and communication starts. 2. Frequency Confi guration The TM-D710A/D710E has an individual VCO and PLL unit for both band A and band B. Using these separate VCO and PLL circuits, it can receive 2 separa

9、te bands at the same time. You can also perform full-duplex operation. The band A VCO is used for the following functions: (i) VHF/UHF transmission (ii) The first local oscillator for the band A (VHF) reception. (iii) The first local oscillator for the band A (UHF) reception. The band B VCO is used

10、for the following functions: (i) VHF/UHF transmission (ii) The first local oscillator for the band B (VHF) reception. (iii) The first local oscillator for the band B (UHF) reception. The PLL reference frequency is generated by a 12.8MHz (band A) and a 16.8MHz (band B) crystal oscillator connected to

11、 the band A and band B PLL ICs. This reference frequency is used for both PLL circuits. The 45.505MHz second local oscillator for band A is generated by the FM IC crystal oscillator circuit. The second local oscillator for the band B uses the tripled 16.8MHz reference oscillator frequency. Note: The

12、 PCB layout and the mounting parts are the same for the band A VCO (X57-731 B/6) and band B VCO (X57-731 C/6), although the PCB silk print is different. CIRCUIT DESCRIPTION TM-D710A/D710E 3 AF AMP TCXO 16.8MHz PLL B MIC AMP VCO B MCF 49.95MHz 2dn IF 450kHz DET x3 FM IC 50.4MHz TCXO 12.8MHz Band A VH

13、F RX VHF TX PLL AVCO A MCF 45.05MHz 2dn IF 455kHz DET FM IC 45.505MHz 1st IF 45.05MHz 1st IF 49.95MHz CA A Band A UHF RX DB B Band B VHF RX UHF TX EA Band B UHF RX FB MIC SP ANT Fig. 1 Frequency confi guration K typeE typeM4 type A144.000 147.995MHz144.000145.995MHz144.000145.995MHz B438.000449.995M

14、Hz430.000439.995MHz430.000439.995MHz C189.050193.045MHz189.050191.045MHz189.050191.045MHz D392.950404.945MHz384.950394.945MHz384.950394.945MHz E193.950197.945MHz193.950195.945MHz193.950195.945MHz F388.050400.045MHz380.050390.045MHz380.050390.045MHz CIRCUIT DESCRIPTION Band A 1st IF: 45.05MHz, 2nd IF

15、: 455kHz (Upper) RX frequency range MHz VCO oscillation frequency range MHz Multiply VCO V/U IC576 pin 7 VCO shift IC576 pin 12 1st Mix. Local frequency range MHz 118.000129.995163.050175.0451HLUpper163.050175.045 130.000185.995175.050231.0451HHUpper175.050231.045 186.000224.995140.950179.9451HLLowe

16、r140.950179.945 225.000279.995179.950234.9451HHLower179.950234.945 280.000359.995325.050405.0451LLUpper325.050405.045 360.000399.995405.050445.0451LHUpper405.050445.045 400.000429.995354.950384.9451LLLower354.950384.945 430.000523.995384.950478.9451LHLower384.950478.945 TM-D710A/D710E 4 CIRCUIT DESC

17、RIPTION 3. Panel Section The panel section consists of the control section, the TNC section and the full-dot LCD (23565 dots) display section. The flash-type panel MPU (IC1) is used in the panel section and the fi rmware can be rewritten. Also, the panel MPU has no program for controlling frequency,

18、 so it is common for all types. 3-1. Power Supply Circuit 10V is always supplied to the panel section even if the power of the main unit is turned off, as long as the main unit is connected to a power supply such as battery. Power is applied to the panel MPU through the 5V AVR (IC6) and the panel se

19、ction is operating in standby mode. When in standby state, the LCD power, the RS-232C circuit power and the TNC power are turned off with switches Q1, Q2, and Q3 respectively, in order to reduce power consumption. The reset signal of the panel MPU (IC1) detects the rising edge of the voltage of the

20、5V line with the voltage detection IC (IC3). The voltage detection IC (IC24) detects the reduced voltage of the 10V power line and backs up the state immediately before the voltage becomes approximately 8V or less, to the EEPROM (IC2). The voltage detection IC (IC14) monitors the TNC-5V line and the

21、 reset signal of the TNC MPU (IC11) performs reset operations. The backup battery circuit divides the 5V voltage always applied with R115 and R116 and floating-charges the internal rechargeable lithium battery through the reverse current prevention diode (D3). The voltage of the battery is approxima

22、tely 3.1V when fully charged. The internal rechargeable lithium battery backs up the data of the S-RAM (IC13), RTC (IC25) and logic IC (IC15). The backup current of approximately 5A is consumed. So, the data can be saved for approximately four weeks on a full charge. The S-RAM is used for maintainin

23、g the status of the packet mode. The call sign of the APRS and reception list are stored in the EEPROM. Band B 1st IF: 49.95MHz, 2nd IF: 450kHz (Upper) RX frequency range MHz VCO oscillation frequency range MHz Multiply VCO V/U IC577 pin 7 VCO shift IC577 pin 12 1st Mix. Local frequency range MHz 13

24、6.000185.995185.950235.9451HHUpper185.950235.945 186.000224.995136.050175.0451HLLower136.050175.045 225.000279.995175.050230.0451HHLower175.050230.045 280.000359.995329.950409.9451LLUpper329.950409.945 360.000399.995409.950449.9451LHUpper409.950449.945 400.000429.995350.050380.0451LLLower350.050380.

25、045 430.000523.995380.050474.0451LHLower380.050474.045 800.000823.990375.0250387.02002LLLower750.050774.040 824.000909.990436.9750479.97002LHUpper873.950959.940 910.0001109.990319.9833386.64673LLUpper959.9501159.940 1100.0001209.990350.0167386.68003LLLower1050.0501160.040 1210.0001299.990314.9875337

26、.48504LLUpper1259.9501349.940 RX BPF switching frequency VHF BPFUHF BPF Band A118279.995MHz (5RVA : ON)280523.995MHz (5RUA : ON) Band B136279.995MHz (5RVB : ON)280523.995MHz (5RUB : ON) VHF BPF shift frequency BPF shift switch RX frequency 199.995MHz200MHz IC576 pin 16LH IC577 pin 17LH TM-D710A/D710

27、E 5 3-5. TNC Section The reception data signal from the main unit is input to the panel section through the PRI terminal (pin 8 of the modular jack of the panel section). This signal is the same as the PR9 signal of the DATA terminal. So, the data signal enters the panel section through the same rou

28、te for both 1200bps and 9600bps. The reception data signal from the PRI terminal passes the LPF (gain: 0, cutoff frequency: 4.8kHz) of IC22, adjusts the output with the electric volume (IC20) and the data signal enters the operational amplifier (IC10). The output adjustment value of the electric vol

29、ume is fi xed. The data signal of 1200bps and 9600bps is divided with the op- amp (IC10). Each data signal passes the buffer amp and is converted to a logic signal by the comparator (IC17). The logic signal converted with the comparator enters to the TNC ASIC (IC12). The signal is demodulated with t

30、he TNC ASIC and is then processed with the TNC MPU (IC11). For packet mode, signals processed with the TNC MPU enter to the panel MPU. The digital signals are not changed in the panel MPU. The level of the signal is changed with the RS-232C driver IC (IC7) and the signals are then output from the CO

31、M terminal (J2). In APRS mode, the signal entering the panel MPU is processed and the status is displayed on the LCD. The TNC section uses the same 3-chip TNC as the TM-D700. The flash-type TNC MPU is used and the firmware can be rewritten. The MPU clock operates at double frequency. TNC ASIC is an

32、existing product. So, the frequency of the clock signal is divided by half with the fl ip- fl op (IC16). The S-RAM (IC13) has a capacity of 4M bits in order to operate smoothly in the KISS mode of packet communication. CIRCUIT DESCRIPTION 3-2. Key, Encoder, Volume Input Circuit The panel section key

33、 corresponds to the panel MPU port, one-to-one. The POWER key is pulled up and connected to the interrupt port of the panel MPU. Other keys are also pulled up outside because the panel MPU is an 8 bit data bus mode. The scanning process reads out the status of the keys. So, if a key is in the ”L” le

34、vel, no other keys are accepted. The encoder is connected to the panel MPU and the port is pulled up. The volume (VOL/SQL) divides the 5V voltage, reads with the A/D port of the panel MPU and transfers the data to the main unit section MPU (IC918). 3-3. Display Circuit The LCD is a COF (Chip On Flex

35、ible printed circuit board) type with the driver IC mounted on the FPC and controlled by the 8 bit data bus mode. The voltage ”V3” is approximately 12V for the LCD, but due to the voltage booster function of this driver IC, it can operate with a single power of 5V. The contrast can change this ”V3”

36、voltage by 16 steps, using the internal memory of the driver IC. 3-4. Brightness Circuit The illumination color can be set to either amber or green. The PWM signal output from the panel MPU passes through the LPF, is converted into DC voltage, and controls the current that fl ows to the LED with the

37、 transistor. The duty of the PWM changes the LED brightness to one of eight levels or OFF. AMBER GREEN Current control IC1 Panel MPU Q5 Q4 SW LPF PWM 10V Current control Q7 Q6 SW LPF PWM 10V Fig. 2 Brightness circuit TM-D710A/D710E 6 SEMICONDUCTOR DATA Panel MPU: 30626FHPGKBXC (Display unit IC1) Pin

38、 No.Port NameI/OFunction 12099ENO Chip enable output for serial-parallel conversion IC (BU2099FV) 2RTC_SCLO RTC (RV5C386A) serial clock output (I2C bus) 3LCD_RESOLCD driver reset terminal 4CLOCKO Common serial clock output (EEPROM, DAC, serial-parallel) 5DATAO Common serial data output (EEPROM, DAC,

39、 serial-parallel) 6BYTEINot used (5V) 7NC-Not used (GND) 8ENC_1IEncoder, B 9SQCINI Squelch state input from transceiver main unit 10RESETISystem reset 11XOUTOSystem clock output (11.0592MHz) 12VSSIGND 13XINISystem clock input (11.0592MHz) 14VCCI5V power supply 15NMIINot used (5V) 16ENC_2IEncoder, A

40、(INT) 17RXD_INTI RXD detection interrupt from main unit UART terminal 18INTI Power supply voltage fall detection interrupt 19PKSOUTO PKS request output to transceiver main unit 20AMBEROBrightness output PWM (Amber) 21EEPCSO EEPROM (AT25256A) chip select output 22EEPSIIEEPROM (AT25256A) serial data i

41、nput 23DA_ENODAC (M62364) chip select output 24BEEPOBEEP sound output 25INTRAI RTC fi xed-cycle interrupt terminal 26GREENOBrightness output PWM (Green) 27RXD(TNC)IUART input from internal TNC terminal 28TXD(TNC)OUART output to internal TNC terminal 29TXDOUART output to main unit MPU 30RXD IUART inp

42、ut from main unit MPU 31CLKFLSINot used (GND) 32FLS_SWINot used (5V) 33TXD(PC)OUART data output to PC terminal 34RXD(PC)IUART data input from PC terminal Pin No.Port NameI/OFunction 35S9600IBaud rate state input of TNC 36PKSINIPacket standby (PKS) state input of TNC 37RDYINot used (5V) 38ALE-Not use

43、d 39HOLD/EPMINot used (5V) 40HLDA-Not used 41BCLK-Not used 42RDOLCD driver RD terminal 43BHE-Not used 44WROLCD driver WR terminal 45MALEDIMessage state input to my station 46TNCCTSOUART inhibiting signal output to TNC 47TNCRTSIUART inhibiting signal input from TNC 48LCD_CS0OLCD driver chip select 49

44、KEY_4IMHz key input 50KEY_3IMR key input 51KEY_2IVFO key input 52KEY_1ICALL key input 53KEY_8IREV key input 54KEY_7ITONE key input 55KEY_6IF key input 56KEY_5IKEY key input 5759NC-Not used 60VCCI5V power supply 61NC-Not used 62VSSIGND 6369NC-Not used 70LCD_A0OLCD driver (Address bus) 71PSWIPower swi

45、tch detection interrupt 72KEY_15IPM key input 73KEY_14ITNC key input 74KEY_13IBAND SEL B key input 75KEY_12IBAND SEL A key input 76KEY_11IPF2 key input 77KEY_10IPF1 key input 78KEY_9ILOW key input 7986 LCD_D7 LCD_D0 OLCD driver (Data bus) 87CONLEDIConnection state input 88STALEDI The transmission re

46、maining packet state input 89GPSLEDIGPS measurement state input TM-D710A/D710E 7 SEMICONDUCTOR DATA Pin No.Port NameI/OFunction 90RTC_SDAI/ORTC (RV5C386A) serial data I/O (I2C bus) 91VOL_BIAF VOL (Band B) A/D input 92VOL_AIAF VOL (Band A) A/D input 93SQL_BISQL (Band B) A/D input 94AVSSIGND 95SQL_AIS

47、QL (Band A) A/D input 96VREFIReference voltage 97AVCCIAnalog power supply 98PCCTSIUART inhibiting signal input from PC 99PCRTSOUART inhibiting signal output to PC 100MBLEDIMessage board connection state input TNC MPU: 3048BTE25KBYB (Display unit IC11) Pin No.Port NameI/OFunction 1VCC-5V power supply 2HOSTCTSI CTS signal of asynchronous serial communication with host 3SQI Squelch input. H: With receive signal, L: No receive signal 4PTT(PKSIN)OPTT output. H: Transmit, L: Receive 5NC-Not used 6NC-Not used 7CONLEDO CON LED Drive. H: Light off, L: Light on, During connection Light on 8STALEDO