Kenwood TM-V71A Service Manual
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Kenwood TM-V71A Service Manual

144/430 (440) mhz fm dual bander
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144/430 (440) MHz FM DUAL BANDER
TM-V71A/V71E
SERVICE MAN UAL
Microhone
(T91-0657-15)
Knob (ENC)
(K29-9376-03)
Button knob (VFO,MR)
(K29-9378-03)
Photo is TM-V71A.
Disassembly For Repair ......................2
Circuit Description ..............................3
Semiconductor Data .........................11
COMPONENTS DESCRIPTION .................14
Terminal Function .............................19
Parts List ...............................................22
Exploded View ......................................38
Packing ....................................................39
Adjustment ..........................................40
RoHS
This product complies with the
Button knob (7KEYS)
(K29-9381-02)
Front glass (Display)
(B10-2775-12)
CONTENTS
directive for the European market.
© 2007-5 PRINTED IN JA PAN
B51-8791-00 ( N ) 289
Metallic cabinet
(A01-2206-02)
Knob (SQL)
(K29-9380-03) x 2
Display Unit (X54-3590-00) ...............60
Tx-Rx Unit (X57-731X-Xx) .................64
INTERCONNECTION DIAGRAM ..............72
Schematic Diagram ............................74
Block Diagram .....................................86
Level Diagram ......................................88
Optional Accessories .......................90
Specifications ......................................91
Panel (Display)
(A62-1135-03)
Knob (VOL)
(K29-9377-03) x 2
Button knob (POWER,PM)
(K29-9379-03)
This product uses Lead Free solder.

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  • Page 1 Button knob (VFO,MR) Front glass (Display) Knob (SQL) Button knob (POWER,PM) (K29-9378-03) (B10-2775-12) (K29-9380-03) x 2 (K29-9379-03) Photo is TM-V71A. CONTENTS DISASSEMBLY FOR REPAIR ......2 PC BOARD CIRCUIT DESCRIPTION ......3 DISPLAY UNIT (X54-3590-00) ....60 SEMICONDUCTOR DATA ......11 TX-RX UNIT (X57-731X-XX) ....64 COMPONENTS DESCRIPTION ....14...

  • Page 2: Disassembly For Repair

    Kenwood reserves the right to make changes to any otherwise, for any purpose without the prior written products herein at any time for improvement purposes.

  • Page 3: Circuit Description

    (iii) The first local oscillator for the band B (UHF) 1. Frequency Confi guration reception. The TM-V71A/V71E has an individual VCO and PLL unit The PLL reference frequency is generated by a 12.8MHz for both band A and band B. Using these separate VCO and (band A) and a 16.8MHz (band B) crystal oscillator connected...

  • Page 4: Receiver System

    TM-V71A/V71E CIRCUIT DESCRIPTION 2-2. Band B VHF Receiver Circuit 2. Receiver System The incoming signal from the antenna passes through 2-1. Band A VHF Receiver Circuit a filter circuit and goes to the RF amplifier (Q293). The The incoming signal from the antenna passes through amplifi...
  • Page 5 TM-V71A/V71E CIRCUIT DESCRIPTION X486 45.505MHz D164,165 RF AMP D378,379 D375,376 RF AMP D370,371 D367,368 D364,365 MIXER IF AMP L377 L375 L370 L368 L366 2nd Local OSC D187,189 Q363 Q362 Q361 XF486 Q495 FM IC Band A IC486 45.05MHz IC667 Wide...
  • Page 6 TM-V71A/V71E CIRCUIT DESCRIPTION IC804 IC807 MIC AMP ALC AMP PRE-EMPHASIS MOD AMP E VR TCXO (A) IC802 IC802 IC803 IC803 IC806 Q805 Q808 Cross TCXO (B) Point Q801 VCO (A) MUTE DTMF TONE/DCS 1750Hz VCO (B) Fig. 5 Modulation circuit 3-2.
  • Page 7 TM-V71A/V71E CIRCUIT DESCRIPTION 3-4. Overheating Protection Circuit is amplified by Q70 and goes to the PLL IC (IC66). The pulse-swallow type PLL IC divides the input VCO oscillator To protect thermal destruction of the power modules frequency using the data from the MPU (IC918). It compares...
  • Page 8 TM-V71A/V71E CIRCUIT DESCRIPTION 5-3. Serial Control 6. AF Signal System The MPU (IC918) controls the panel section (Display unit 6-1. Beep Circuit and Mute Circuit X54-359) through synchronous serial communications. A beep sound is generated by the MPU (IC918) and goes to cross point switch (IC806).
  • Page 9 TM-V71A/V71E CIRCUIT DESCRIPTION 6-3. Microphone Key Input limiting filter. For 9600bps GMSK for example, compared ■ When the MC-59 (Supplied microphone) is used to 4800Hz signals (nearly sine wave signals passed through a fi lter), the signals have a hissing sound like digital The pulse is output from the CM terminal of the MPU to modulation when listened to by ear.
  • Page 10 TM-V71A/V71E CIRCUIT DESCRIPTION 7-2. Reception Signals 8-2. Key, Encoder, Volume Input Circuit PR9 is the 9600bps data communications reception Circuits to operate the panel section keys are connected output. It sends the FM detection circuit output (RD signals) to each microprocessor port. The POWER key is pulled up through a buffer amplifi...

  • Page 11: Semiconductor Data

    TM-V71A/V71E SEMICONDUCTOR DATA Main MPU: 3062LFGPUKBVB: K Pin No. Port Name Function 3062LFGPUKBWB: E,M4 SQC (PNL) O Internal TNC SQC output (TX-RX (Control) unit (D/6) IC918) Serial data for DAC (M62364) and CNT_DT cross point switch Pin No. Port Name...
  • Page 12 TM-V71A/V71E SEMICONDUCTOR DATA Shift Register: BU2099FV (TX-RX unit (A/6) IC576) Pin No. Port Name Function PKD input switching (PKD (PNL) or Port Active PKD_SEL Pin name I/O Function PKD (EXT)) name level Wide/Narrow switching H (Narrow) L:VHF TX, H:UHF TX (V/U switching)
  • Page 13 TM-V71A/V71E SEMICONDUCTOR DATA Electorical Volume IC: M62364FP-F Panel MPU: 3062LFGPUKBZA (TX-RX (Control) unit (D/6) IC804) (Display unit IC903) Pin No. Pin name Function Pin No. Port Name I/O Function VIN1 B band balance adjustment input KEY4 [CALL] key input VOUT1 B band balance adjustment output...

  • Page 14: Components Description

    TM-V71A/V71E SEMICONDUCTOR DATA Pin No. Port Name I/O Function Pin No. Port Name I/O Function 63~67 NC Not used (GND) 79~90 NC Not used (GND) LCD_DT_2 O LCD driver 2 data VOL_B AF VOL (Band B) A/D input LCD_CLK_2 O LCD driver 2 CLK...
  • Page 15 TM-V71A/V71E COMPONENTS DESCRIPTION Ref. No. Use / Function Operation / Condition / Compatibility Ref. No. Use / Function Operation / Condition / Compatibility Q0: Wide/Narrow select for B band Amplifi er Local amplifi er for A band Q1: VU_Select for B band A band PLL f-in fi...
  • Page 16 TM-V71A/V71E COMPONENTS DESCRIPTION Ref. No. Use / Function Operation / Condition / Compatibility Ref. No. Use / Function Operation / Condition / Compatibility Ceramic fi lter select (On when FM- Q588 Switching 8TUA switch (On when A band UHF TX)
  • Page 17 TM-V71A/V71E COMPONENTS DESCRIPTION Ref. No. Use / Function Operation / Condition / Compatibility Ref. No. Use / Function Operation / Condition / Compatibility Reverse current D186 Switching RF switch A band PLL unlock signal prevention D187 Switching RF switch Voltage shift...
  • Page 18 TM-V71A/V71E COMPONENTS DESCRIPTION Ref. No. Use / Function Operation / Condition / Compatibility Ref. No. Use / Function Operation / Condition / Compatibility Local signal switch D609 Limiter Prevention from over level input D407,408 Switching (on when B band UHF RX)

  • Page 19: Terminal Function

    TM-V71A/V71E TERMINAL FUNCTION DISPLAY UNIT (X54-3590-00) Pin No. Name Function Pin No. Name Function No connection CN902 DATA O Data signal output for VGS-1 O CLK for VGS-1 SW5V Switched 5V O Enable signal for VGS-1 KEY11 O Volume key signal (A band)
  • Page 20 TM-V71A/V71E TERMINAL FUNCTION Pin No. Name Function Pin No. Name Function O Squelch control output DET_A O A band detect signal output TX-RX UNIT (X57-731X-XX) (B,E/6): VCO A Section PR (PNL) O PR detect signal output for panel DET_B O B band detect signal output Pin No.
  • Page 21 TM-V71A/V71E TERMINAL FUNCTION Pin No. Name Function Pin No. Name Function B_PLLEN O Enable signal for B band PLL (IC66) No connection TR_DT O Data Switched 8V TR_CLK O Clock No connection 2099_EN O Enable signal for shift register (IC576)

  • Page 22: Parts List

    TM-V71A/V71E PARTS LIST CAPACITORS 2 2 0 • Capacitor value CC45 Color* 010 = 1pF 0 = 22pF 1 = Type ... ceramic, electrolytic, etc. 4 = Voltage rating 100 = 10pF 2 = Shape ... round, square, etc. 5 = Value...
  • Page 23 Les articles non mentionnes dans le Parts No. ne sont pas fournis. Y : AAFES (Europe) X : Australia M : Oth er Areas Teile ohne Parts No. werden nicht geliefert. TM-V71A/V71E (Y51-513X-XX) DISPLAY UNIT (X54-3590-00) Desti- Desti- Ref. No.
  • Page 24 TM-V71A/V71E PARTS LIST DISPLAY UNIT (X54-3590-00) TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation CP905 RK75HA1J473J CHIP-COM 47K 1/16W TX-RX UNIT (X57-731X-XX) 0-11: K 0-21: M4 2-71: E...
  • Page 25 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation CK73GB1H104K CHIP C 0.10UF C164 CK73HB1H471K CHIP C 470PF C76,77 CK73HB1H102K CHIP C 1000PF...
  • Page 26 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C236 CK73HB1H102K CHIP C 1000PF C383 CC73HCH1H1R5B CHIP C 1.5PF C237 CK73HB1A104K CHIP C 0.10UF...
  • Page 27 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C486 CK73HB1A104K CHIP C 0.10UF C602,603 CK73GB1H104K CHIP C 0.10UF C487 CK73HB1H391K CHIP C...
  • Page 28 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C716 CK73HB1E103K CHIP C 0.010UF C826 CK73HB1A104K CHIP C 0.10UF C717 CC73HCH1H390J CHIP C...
  • Page 29 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation ✽ C916 CK73HB1A104K CHIP C 0.10UF CN702 E40-6770-05 PIN ASSY C917,918 CK73HB1H102K CHIP C...
  • Page 30 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation ✽ L234 L41-3385-14 SMALL FIXED INDUCTOR (330NH) L417 L41-2288-03 SMALL FIXED INDUCTOR (220NH) L236,237...
  • Page 31 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation CP576 RK74HB1J102J CHIP-COM 1.0K 1/16W R54,55 RK73HB1J222J CHIP R 2.2K 1/16W CP577-579 RK74HB1J472J CHIP-COM 4.7K...
  • Page 32 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R161 RK73HB1J222J CHIP R 2.2K 1/16W R264 RK73HB1J000J CHIP R 1/16W R162 RK73HB1J122J CHIP R 1.2K...
  • Page 33 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R380 RK73HB1J391J CHIP R 1/16W R470 RK73HB1J333J CHIP R 1/16W R381 RK73HB1J330J CHIP R...
  • Page 34 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R558 RK73HB1J220J CHIP R 1/16W R696 RK73HB1J000J CHIP R 1/16W R559,560 RK73HB1J124J CHIP R...
  • Page 35 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R825 RK73HB1J822J CHIP R 8.2K 1/16W R927 RK73HB1J473J CHIP R 1/16W R826 RK73HB1J473J CHIP R...
  • Page 36 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation D163 EDZ5.1B ZENER DIODE D701 HSC277 DIODE D164,165 L407CDB DIODE (50V/1W) D703-705 1SV325F VARIABLE CAPACITANCE DIODE...
  • Page 37 TM-V71A/V71E PARTS LIST TX-RX UNIT (X57-731X-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation Q68,69 2SC4617(R) TRANSISTOR Q751,752 DTC114YE DIGITAL TRANSISTOR 2SC5636 TRANSISTOR Q753 ✽ SSM6L05FU-F DTC144EE DIGITAL TRANSISTOR...

  • Page 38: Exploded View

    TM-V71A/V71E EXPLODED VIEW : N09-6548-05 : N14-0830-04 M2.6 x 6 (OC) : N33-2606-43 M3 x 8 : N67-3008-48 M2 x 12 : N80-2012-43 M2.6 x 6 : N80-2606-48 G M2.6 x 6 (Br-Tap) : N87-2606-48 M2.6 x 6 (Bi-Tap) : N89-2606-43...

  • Page 39: Packing

    TM-V71A/V71E PACKING 9 K,E 708 Pamphlet Protection bag Warranty card 9 M4 710 Pamphlet E 41 Bracket (J29-0628-33) 706 Protection bag 37 Holder (MIC hook) (J19-1584-15) K 30 Fuse (15A) (F51-0079-05) K,M4 53 Screw set (N99-0331-15) 31 Fuse (Blade, 15A)

  • Page 40: Adjustment

    TM-V71A/V71E ADJUSTMENT Measuring Equipment for Alignment Preparation 1. Digital voltmeter (D.V.M) • Set the controls and switches to the positions listed below unless otherwise specifi ed. Input impedance: High 2. RF valve voltmeter (RF V.M) BAND SEL/ VOL (Band A) control Fully counterclockwise Input impedance: 1MΩ...
  • Page 41 TM-V71A/V71E ADJUSTMENT ■ Rear panel ■ DATA connector pin assignment E (GND) q ANT e PC Terminals e and y are short circuited. w DATA r SP (SP1/SP2) e PKS (SEND switch for DATA terminal) Connect PTT output. If PKS is set to ”GND”, data are sent and the microphone will be mute.
  • Page 42 TM-V71A/V71E ADJUSTMENT 4) Check the PTT signal operation. 16. BPF RSSI (Band B) (144MHz band, 200MHz band, q Input 5 to 10 V to pin 2 of the transceiver PC terminal 430MHz band)*1 or pin 7 of the PG-5H D-SUB terminal (CTS).
  • Page 43 TM-V71A/V71E ADJUSTMENT ■ Panel key operation in the adjustment mode ■ Example of the adjustment mode operation procedure The operating procedure when the BPF RSSI of band A Key name Function (430MHz band, low frequency) is adjusted is described as Changes the adjustment item or adjustment follows.
  • Page 44 TM-V71A/V71E ADJUSTMENT ■ Adjustment item, adjustment band item, display and the frequency that is set to the transceiver The frequency that is set to Display the transceiver Adjustment item Adjustment band item Signaling Adjustment Adjustment K type E, M4 types...
  • Page 45 TM-V71A/V71E ADJUSTMENT The frequency that is set to Display the transceiver Adjustment item Adjustment band item Signaling Adjustment Adjustment K type E, M4 types item band item 144MHz band, Low frequency BPF A 118.050MHz 118.050MHz 144MHz band, Center frequency BPF A 145.050MHz...
  • Page 46 TM-V71A/V71E ADJUSTMENT The frequency that is set to Display the transceiver Adjustment item Adjustment band item Signaling Adjustment Adjustment K type E, M4 types item band item 144MHz band SQT B 145.050MHz 145.050MHz 200MHz band SQT B 220.050MHz 220.050MHz Squelch tight...
  • Page 47 TM-V71A/V71E ADJUSTMENT Common Section Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 1.Setting 1) Power supply voltage DC power supply terminal : 13.8V 2. All LCD 1) All LCD segments light check Confi rm that all LCD segments light.
  • Page 48 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 6. SWR 1) Adj item: [SWR V] Power meter Rear Front Tuning Set the following protection Adjust: [ panel panel control adjustment values...
  • Page 49 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 11. CTCSS 1) Adj item: [CT A V] Linear Rear Front Tuning Write 0.75kHz±0.05kHz deviation Adjust: [ detector panel panel control (Band A)
  • Page 50 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment • Band B 8) Frequency: 144.000MHz Power meter Rear Check 47~53W 9) Frequency: 145.000MHz E,M4 Ammeter panel 12A or less Frequency: 146.000MHz K 10) Frequency: 145.990MHz E,M4...
  • Page 51 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 18. MIC 1) Frequency: 145.000MHz E,M4 Linear Rear Check ±2.34~4.17kHz K,M4 sensitivity Frequency: 146.000MHz K detector panel ±2.38~4.05kHz E Check AG: 1kHz/5mV K,M4 Oscilloscope •...
  • Page 52 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment • Band B 5) Frequency: 145.000MHz E,M4 Linear Rear Check 0.65~0.85kHz Frequency: 146.000MHz K detector panel Detector: +P HOLD Oscilloscope LPF: 3kHz HPF: OFF...
  • Page 53 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 2. BPF RSSI 1) Adj item: [BPF B VL] → Rear Front Tuning Turn the Tuning (Band B) [BPF B VC] → [BPF B VH]...
  • Page 54 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 5. Squelch 1) Adj item: [SQT A V] Rear Front Tuning Write tight Adjust: [ panel panel control (Band A) SSG output: –119dBm (0.25µV)
  • Page 55 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 8 .S-meter S1 1) Adj item: [SM1 B V] Rear Front Tuning Write (Band B) Adjust: [ panel panel control Writing SSG output: –118dBm (0.28µV) •...
  • Page 56 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 11. AF distortion 1) Frequency: 145.250MHz E,M4 Rear Check 4% or less Check Frequency: 146.250MHz K Oscilloscope panel EXT.SP • Band A SSG output: –53dBm (501µV)
  • Page 57 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment • Band B 16) Frequency: 145.250MHz E,M4 Rear Check 12dB SINAD or more (Wide) Frequency: 146.250MHz K panel EXT.SP SSG output: –122dBm (0.178µV)
  • Page 58 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 3) Frequency: 435.000MHz E,M4 Frequency: 444.000MHz K Oscilloscope SSG output: –53dBm (501µV) Distortion AF V.M: 0dB meter AF V.M 4) SSG DEV: OFF Check –43dB or less...
  • Page 59 TM-V71A/V71E ADJUSTMENT Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment • 430MHz band 7) Frequency: 435.250MHz E,M4 Rear Check SQL knob (Band B) position: Frequency: 444.250MHz K Oscilloscope panel EXT.SP 8:00~11:00 SSG output: OFF BUSY icon disappear.
  • Page 60 TM-V71A/V71E PC BOARD DISPLAY UNIT (X54-3590-00) (A/3, B/3, C/3) Component side view (J79-0140-09) J79-0140-09 A/3 ED903 S902 D960 D959 D958 D957 D956 D955 R940 D933 D923 D944 D934 D924 D943 R941 S903 R934 D969 D968 D967 D963 D962 D961 R935...
  • Page 61 TM-V71A/V71E PC BOARD DISPLAY UNIT (X54-3590-00) (A/3, B/3, C/3) Component side view (J79-0140-09) ED903 S911 POWER D965 D964 D975 D974 D973 D966 D946 D936 D926 D949 D939 D929 S912 D972 D971 D970 D954 D953 D952 D948 D938 D928 D942 D932...
  • Page 62 TM-V71A/V71E PC BOARD DISPLAY UNIT (X54-3590-00) (A/3, B/3, C/3) Foil side view (J79-0140-09) J79-0140-09 A/3 D989 IC902 D921 R955 Q905 IC904 Q903 IC907 D920 Q904 IC901 R954 CP913 C907 C915 CN905 CN903 C916 SQL_B SQL_A R950 Q901 VOL_B VOL_A KEY12...
  • Page 63 TM-V71A/V71E PC BOARD DISPLAY UNIT (X54-3590-00) (A/3, B/3, C/3) Foil side view (J79-0140-09) IC905 CP908 R905 R904 C966 IC906 C962 L906 C930 C929 R907 CP910 IC903 C925 C922 CP909 R901 R902 C927 D908 C950 C904 D906 D907 C903 L901 D909 Component side Ref.
  • Page 64 TM-V71A/V71E PC BOARD TX-RX UNIT (X57-731X-XX)(A/6): R647 TX-RX SECTION C660 VGS-1 0-11 : K 0-21 : M4 2-71 : E CN677 Component side view CN642 (J79-0142-19 A/6) R665 CF487 CF547 Ref. No. Address Ref. No. Address R514 Q585 C502 R510...
  • Page 65 TM-V71A/V71E PC BOARD J79-0142-19 A/6 TX-RX UNIT (X57-731X-XX)(A/6): TX-RX SECTION 0-11 : K 0-21 : M4 2-71 : E Component side view D612 – (J79-0142-19 A/6) D489 C625 Q494 C511 Q492 Ref. No. Address Ref. No. Address R514 D610 D188...
  • Page 66 TM-V71A/V71E PC BOARD J79-0142-19 A/6 TX-RX UNIT (X57-731X-XX)(A/6): C633 C634 R635 R636 TX-RX SECTION C608 C611 C609 0-11 : K 0-21 : M4 2-71 : E Foil side view IC606 (J79-0142-19 A/6) – D488 C631 C630 Q496 R626 C628 R534...
  • Page 67 TM-V71A/V71E PC BOARD TX-RX UNIT (X57-731X-XX)(A/6): TX-RX SECTION 0-11 : K 0-21 : M4 2-71 : E Foil side view CP667 (J79-0142-19 A/6) C669 + R672 R663 R492 R685 R490 R488 R555 C671 R553 R551 Q487 D487 Q548 CP666 D486...
  • Page 68 TM-V71A/V71E PC BOARD TX-RX UNIT (X57-731X-XX) (D/6) : CONTROL SECTION 0-11 : K 0-21 : M4 2-71 : E Component side view (J79-0142-19 D/6) J79-0142-19 D/6 J952 PANEL I/F Q917 C947 C918 R919 C948 X916 C950 C922 C919 C949 R916...
  • Page 69 TM-V71A/V71E PC BOARD TX-RX UNIT (X57-731X-XX) (D/6) : CONTROL SECTION 0-11 : K 0-21 : M4 2-71 : E Component side view (J79-0142-19 D/6) Component side Layer 1 Layer 2 Layer 3 Layer 4 Foil side J802 Q802 C807 C804...
  • Page 70 TM-V71A/V71E PC BOARD TX-RX UNIT (X57-731X-XX) (D/6) : CONTROL SECTION 0-11 : K 0-21 : M4 2-71 : E Foil side view (J79-0142-19 D/6) Component side Layer 1 Layer 2 Layer 3 IC801 Layer 4 Foil side Q806 Q804 R845...
  • Page 71 TM-V71A/V71E PC BOARD TX-RX UNIT (X57-731X-XX) (D/6) : CONTROL SECTION 0-11 : K 0-21 : M4 2-71 : E Foil side view (J79-0142-19 D/6) J79-0142-19 D/6 R952 R953 C952 R954 R955 R956 R987 C958 C957 IC952 C838 R838 R825 C980...

  • Page 72: Interconnection Diagram

    TM-V71A/V71E INTERCONNECTION DIAGRAM J607 E56-0405-05 TX-RX UNIT DATA X57-731 (A/6) (TX-RX SECTION) J606 E56-0411-05 PC I/F CN702 CN701 CN752 CN751 E40-6770-05 E40-6771-05 E40-6770-05 E40-6771-05 SHIFT SHIFT VCO A VCO B CN641 E40-6525-05 X57-731 (B,E/6) X57-731 (C,F/6) FAN_C DC IN 13.8V...

  • Page 73: Display Unit

    TM-V71A/V71E INTERCONNECTION DIAGRAM CN902 CN903 E40-6710-05 E40-6708-05 OPTION SW5V SW5V VOL_A KEY11 KEY11 VOL_A VOL_A Voice Guide & SQL_A SQL_A Storage UNIT CN642 E40-6389-05 X54-359 (B/3) BUSY VBSY PLAY VPLY DATA VGS-1 USEL USEL VRST DGND DGND CN905 CN904 AGND...

  • Page 74: Schematic Diagram

    TM-V71A/V71E SCHEMATIC DIAGRAM DISPLAY UNIT (X54-3590-00) (A/3) ED903 (B38-0921-05) SEG32 SEG71 SEG54 SEG15 SEG72 SEG53 SEG14 SEG33 SEG73 SEG52 SEG13 SEG34 SEG12 SEG74 SEG51 SEG35 SEG11 SEG75 SEG50 SEG36 SEG10 SEG76 SEG49 SEG37 LCD2 LCD1 SEG9 SEG48 LCD DRIVER SEG38...
  • Page 75 TM-V71A/V71E SCHEMATIC DIAGRAM DISPLAY UNIT (X54-3590-00) (A/3) X54-3590-00 (B/3) C952 0.01u SW5V SW5V D914 CN903 CN902 DA221 C953 0.01u C917 0.01u SW5V SW5V D915 D902 D903 D904 D906 D908 D911 D913 D920 KEY11 KEY11 DA221 DA221 DA221 DA221 DA221 DA221...
  • Page 76 TM-V71A/V71E SCHEMATIC DIAGRAM TX-RX UNIT (X57-731X-XX) (A/6): TX-RX SECTION CN642 VGS-1 VGS-1 I/F AGND C660 R649 VGSREC DGND AGND 150k USEL VRST VRST DATA DATA A BAND TR_DT VBSY VPLY PLAY VPLY BUSY VBSY 12.8MHz TR_CLK R651 C665 L77-3018-05 VGSPLAY C531 4.7u...
  • Page 77 TM-V71A/V71E SCHEMATIC DIAGRAM TX-RX UNIT (X57-731X-XX) (A/6): TX-RX SECTION HSC277 HSC277 1000p 1000p HSC277 HSC277 7.5V RIPPLER DTC144EE FILTER 2SC4617(R) HSC277 HSC277 8.2n R113 PLL IC 2.2k C674 4.8V MB15A02PFV2E1 L608 oSCIN DTC144EE 390n oSCoUT MA2S077-F FoUT VOLTAGE 3.3k MA2S077-F...
  • Page 78 TM-V71A/V71E SCHEMATIC DIAGRAM TX-RX UNIT (X57-731X-XX) (A/6): TX-RX SECTION X57-731X-XX (B/6,E/6): VCO A R703 Q704 2SJ347F Q703 SSM6L05FU-F RIPPLER R721 CN702 FILTER C725 C733 2SC4617(R) CN701 OSCILLATOR R714 C736 C721 Q706 D705 C713 R704 L701 1.0u 0.5p 0.5p L708 2SK508NV(K52)
  • Page 79 TM-V71A/V71E SCHEMATIC DIAGRAM TX-RX UNIT (X57-731X-XX) (A/6): TX-RX SECTION 6.9V 0.85V 470p T:7V 2SC5636 R:0V 1000p 0.35V T:4.2V T:1.2V Q131 T:0.3V R:0V R:0V 2SC3357-A(RF) Q644 R:0V 2SC3356-A(R24) C605 D130 C131 R587 T:0.6V HVC131 HVC131 HVC131 1000p R:0V 6.5V HVC131 D131...
  • Page 80 TM-V71A/V71E SCHEMATIC DIAGRAM TX-RX UNIT (X57-731X-XX) (A/6): TX-RX SECTION D136 TEMPERATURE COMPENSATION VHF TX POWER MODULE IC131 RA60H13171123 H:4.6V M:4.1V L:4V APCV L135 D134 C226 L407CDB C138 R139 R147 C149 D135 C191 L192 L195 470p H:12.4V L407CDB 1000p 2.5T 2.5T M:13.2V...
  • Page 81 TM-V71A/V71E SCHEMATIC DIAGRAM TX-RX UNIT (X57-731X-XX) (A/6): TX-RX SECTION R:4.7V T:0V R229 A BAND VHF V_A_BPF R:2.4V T:0V L230 D226 560n L260 C240 R235 R238 L234 R242 C256 HSC277 R:0.27V 1000p 330n 1000p L227 L228 L259 C242 C248 Q226 T:0V...
  • Page 82 TM-V71A/V71E SCHEMATIC DIAGRAM TX-RX UNIT (X57-731X-XX) (A/6): TX-RX SECTION VHF RX R:4V R:4V R:1.9V R:1.9V T:0V T:0V L357 L359 T:0V T:0V A BAND 390n 330n L257 L256 C264 R257 R260 L246 R264 C280 C288 R:4.7V R:0.3V 1000p C266 390n 1000p...
  • Page 83 TM-V71A/V71E SCHEMATIC DIAGRAM TX-RX UNIT (X57-731X-XX) (A/6): TX-RX SECTION RECTIFICATION D192 8V DC C221 R199 C222 470p 470p MA3J742 T:7.9V Q585 12A02CH R211 R578 1.8k H:5.6V 8TV_I M:2.5V RECTIFICATION L:1.5V T:7.9V D191 Q586 8.0V MA3J742 12A02CH R208 470k REVERSE CURRENT...
  • Page 84 TM-V71A/V71E SCHEMATIC DIAGRAM TX-RX UNIT (X57-731X-XX) (D/6): CONTROL SECTION FLS_SW C954 FLS_SW 1000p R950 SIM3 SIM4 EEPROM EEPCS IC916 PKS(PNL) AT25256A10TU27 EEPSO CNT_CLK BUFFER CNT_DT HoLD IC951 TC74HC4050AFT PANEL I/F R952 C916 0.1u R953 J952 C917 1000p R954 8 SQC(PNL)
  • Page 85 TM-V71A/V71E SCHEMATIC DIAGRAM TX-RX UNIT (X57-731X-XX) (D/6): CONTROL SECTION CN960 L917 L951 L952 DTMF SB_C SB_C TOIN_A ILLM ILLM TOIN_B TXD(PC) TXD(PC) RXD(PC) RXD(PC) RTS(PC) RTS(PC) CTS(PC) CTS(PC) SQC(EXT) SQC(EXT) PKS(EXT) SB_C PKS(EXT) R938 PKD(EXT) PKD(EXT) R939 PR1(EXT) DTMF/1750 PR1(EXT)

  • Page 86: Block Diagram

    TM-V71A/V71E BLOCK DI A GRAM DISPLAY UNIT TX-RX UNIT (X54-359) (X57-731) (A/6) TX-RX SECTION IC906 IC907 PT6554LQ PT6554LQ PLL A LCD DRIVER Q705,706: 2S TCXO IC1: MB15A02PFV2E1 TCXO A Q704: 2SJ347 12.8MHz CHARGE PUMP Q703: SSM6L X901 Q2: 2SA1774(R) Q701,702: DT 11.0592MHz...
  • Page 87 TM-V71A/V71E BLOCK DIAGRAM IC131 VHF POWER MODULE ANT SW RA60H13171123 VCO A RF AMP RF AMP D134,135 L407CDB Q705,706: 2SK508NV(K52) D14~19 Q131 D130,131 Q644 D186 2SC5108 Q704: 2SJ347F 2SC3357-A(RF) HVC131 2SC3356(R24) HVC131 MA4PH633 (Y)F Q703: SSM6L05FU-F D132 D188 Q701,702: DTC114YE...

  • Page 88: Level Diagram

    TM-V71A/V71E LEVEL DIAGRAM Receiver Section Center Frequency 45.05MHz 455kHz AF (1kHz) –123dBm –121dBm –109.5dBm –105dBm –110dBm 155mVrms D134,135 D186,188 XF486 A Band IC486 FM IC Q228 Q227 Q226 A Band VHF Receiver circuit 1st Local Wide Narrow 49.95MHz 450kHz AF (1kHz) –121dBm...
  • Page 89 TM-V71A/V71E LEVEL DIAGRAM Transmitter Section AF (1kHz) 250mVrms : K,M4 670mVrms : VHF 100mVrms : E 550mVrms : UHF 5mVrms : K,M4 330mVrms : VHF 2mVrms : E 67mVrms 320mVrms 320mVrms 950mVrms 950mVrms 950mVrms 220mVrms : UHF VCO A IC806...

  • Page 90: Optional Accessories

    TM-V71A/V71E OPTIONAL ACCESSORIES DFK-3D (Detachable Front Panel Kit (3 m)) PG-5F (Extension Cable Kit (4 m)) ■ External View ■ External View MC-59 (Keypad Microphone) PG-5G (Programming Interface Cable (2 m)) ■ External View ■ External View ■ Cord Assembly...

  • Page 91: Specifications

    TM-V71A/V71E SPECIFICATIONS TM-V71A TM-V71E TM-V71A General K Type E Type M4 Type 144~148MHz 144~146MHz Guaranteed range Band A & B TX & RX 438~450MHz 430~440MHz Band A 118 ~ 524MHz – Frequency range 136~524MHz – Band B 800~1300MHz (excluding cellular band) –...
  • Page 92 Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road, Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex Kwai Fong, N.T., Hong Kong KENWOOD House, Dwight Road, Watford, Herts., 1 Ang Mo Kio Street 63, Singapore 569110 WD18 9EB United Kingdom...
  • Page 93 TM-V71A/V71E TM-V71A/V71E PC BOARD PC BOARD DISPLAY UNIT (X54-3590-00) (A/3, B/3, C/3) Component side view (J79-0140-09) DISPLAY UNIT (X54-3590-00) (A/3, B/3, C/3) Component side view (J79-0140-09) J79-0140-09 A/3 ED903 S902 S911 POWER D960 D959 D958 D957 D956 D955 D966 D965...
  • Page 94 TM-V71A/V71E TM-V71A/V71E PC BOARD PC BOARD DISPLAY UNIT (X54-3590-00) (A/3, B/3, C/3) Foil side view (J79-0140-09) DISPLAY UNIT (X54-3590-00) (A/3, B/3, C/3) Foil side view (J79-0140-09) J79-0140-09 A/3 D989 D921 IC902 R955 Q905 IC904 IC905 CP908 Q903 R905 D920 IC907...
  • Page 95 TM-V71A/V71E TM-V71A/V71E PC BOARD PC BOARD J79-0142-19 A/6 TX-RX UNIT TX-RX UNIT (X57-731X-XX)(A/6): (X57-731X-XX)(A/6): R647 TX-RX SECTION TX-RX SECTION C660 VGS-1 0-11 : K 0-21 : M4 2-71 : E 0-11 : K 0-21 : M4 2-71 : E CN677...
  • Page 96 TM-V71A/V71E TM-V71A/V71E PC BOARD PC BOARD J79-0142-19 A/6 TX-RX UNIT TX-RX UNIT (X57-731X-XX)(A/6): (X57-731X-XX)(A/6): C633 C634 R635 R636 TX-RX SECTION TX-RX SECTION C608 C611 C609 0-11 : K 0-21 : M4 2-71 : E 0-11 : K 0-21 : M4 2-71 : E...
  • Page 97 TM-V71A/V71E TM-V71A/V71E PC BOARD PC BOARD TX-RX UNIT (X57-731X-XX) (D/6) : CONTROL SECTION TX-RX UNIT (X57-731X-XX) (D/6) : CONTROL SECTION 0-11 : K 0-21 : M4 2-71 : E Component side view (J79-0142-19 D/6) 0-11 : K 0-21 : M4 2-71 : E Component side view (J79-0142-19 D/6)
  • Page 98 TM-V71A/V71E TM-V71A/V71E PC BOARD PC BOARD TX-RX UNIT (X57-731X-XX) (D/6) : CONTROL SECTION TX-RX UNIT (X57-731X-XX) (D/6) : CONTROL SECTION 0-11 : K 0-21 : M4 2-71 : E Foil side view (J79-0142-19 D/6) 0-11 : K 0-21 : M4 2-71 : E Foil side view (J79-0142-19 D/6)
  • Page 99 DISPLAY UNIT (X54-3590-00) (A/3) X54-3590-00 (B/3) C952 0.01u SW5V SW5V ED903 (B38-0921-05) D914 CN903 CN902 DA221 C953 0.01u C917 0.01u SW5V SW5V D915 D902 D903 D904 D906 D908 D911 D913 D920 KEY11 KEY11 DA221 DA221 DA221 DA221 DA221 DA221 DA221 DA221 DA221 C954...
  • Page 100 TX-RX UNIT (X57-731X-XX) (A/6): TX-RX SECTION CN642 RECTIFICATION VGS-1 X57-731X-XX (B/6,E/6): VCO A 8V DC D192 D136 C221 R199 C222 TEMPERATURE 470p 470p VGS-1 I/F R703 Q704 VHF TX COMPENSATION MA3J742 Q703 2SJ347F T:7.9V Q585 SSM6L05FU-F R721 CN702 RIPPLER POWER MODULE 12A02CH R211 FILTER...
  • Page 101 TX-RX UNIT (X57-731X-XX) (D/6): CONTROL SECTION FLS_SW C954 CN960 FLS_SW 1000p L917 R950 SIM3 L951 SIM4 L952 EEPROM EEPCS DTMF IC916 PKS(PNL) SB_C AT25256A10TU27 EEPSO SB_C TOIN_A ILLM CNT_CLK ILLM BUFFER CNT_DT HoLD TOIN_B TXD(PC) TXD(PC) IC951 TC74HC4050AFT RXD(PC) RXD(PC) RTS(PC) PANEL I/F RTS(PC)
  • Page 102 CN902 CN903 E40-6710-05 E40-6708-05 J607 E56-0405-05 OPTION SW5V SW5V VOL_A KEY11 KEY11 TX-RX UNIT VOL_A VOL_A Voice Guide & SQL_A SQL_A DATA Storage UNIT CN642 X57-731 (A/6) E40-6389-05 X54-359 (B/3) BUSY VBSY (TX-RX SECTION) PLAY VPLY DATA J606 VGS-1 E56-0411-05 USEL USEL VRST...
  • Page 103 DISPLAY UNIT TX-RX UNIT (X54-359) (X57-731) (A/6) TX-RX SECTION IC906 IC907 IC131 PT6554LQ PT6554LQ VHF POWER MODULE ANT SW RA60H13171123 PLL A VCO A RF AMP RF AMP D134,135 LCD DRIVER L407CDB Q705,706: 2SK508NV(K52) D14~19 Q131 TCXO IC1: MB15A02PFV2E1 D130,131 Q644 D186 TCXO A...

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