Kenwood TK-7150 Service Manual
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Kenwood TK-7150 Service Manual

Kenwood TK-7150 Service Manual

Vhf fm transceiver
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VHF FM TRANSCEIVER
TK-7150
SERVICE MANUAL
GENERAL .................................................. 2
SYSTEM SET-UP ...................................... 3
OPERATING FEATURES .......................... 4
REALIGNMENT ......................................... 5
INSTALLATION ......................................... 7
CIRCUIT DESCRIPTION .......................... 12
SEMICONDUCTOR DATA ...................... 16
COMPONENTS DESCRIPTION .............. 20
PARTS LIST ............................................. 22
EXPLODED VIEW .................................... 32
PACKING ................................................. 33
Microphone
(T91-0621-15)
Knob
Key top
(K29-9221-03) x 2
(K29-9222-02)
CONTENTS
© 2002-10 PRINTED IN JAPAN
B51-8633-00 ( N ) 843
Panel assy
(A62-1037-03)
ADJUSTMENT ........................................ 34
TX-RX UNIT (X57-6570-10) ................ 49
SCHEMATIC DIAGRAM .......................... 55
BLOCK DIAGRAM ................................... 63
WIRING .................................................... 65
TERMINAL FUNCTION ........................... 66
OPTIONS ................................................. 68
SPECIFICATIONS .................................... 69
Cabinet
(A01-2185-12)

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  • Page 1: Table Of Contents

    VHF FM TRANSCEIVER TK-7150 SERVICE MANUAL © 2002-10 PRINTED IN JAPAN B51-8633-00 ( N ) 843 Microphone (T91-0621-15) Cabinet (A01-2185-12) Knob Key top Panel assy (K29-9221-03) x 2 (K29-9222-02) (A62-1037-03) CONTENTS GENERAL ..........2 ADJUSTMENT ........34 SYSTEM SET-UP ........3 PC BOARD OPERATING FEATURES ......

  • Page 2: General

    Control station. The antenna system selection depends tion be checked for proper operation before installation. on many factors and is beyond the scope of this manual. Your KENWOOD dealer can help you select an antenna sys- tem that will best serve your particular needs.

  • Page 3: System Set-Up

    Merchandise received License and frequency allocated by FCC Frequency range RF power Type Choose the type of transceiver 136~174MHz TK-7150 K See page 8. Are you using KRK-9 the remote kit? Control cable KCT-22 M : 8 feet M2 : 17 feet M3 : 25 feet See page 7.

  • Page 4: Operating Features

    TK-7150 OPERATING FEATURES !3 PTT switch 1. Controls and Functions To transmit, press and hold this switch, then speak into 1-1. Front Panel the microphone. Release to receive. 1-3. Display CALL SCN SP OP Indicator Description Displays the zone, group ID, and channel 1-2.

  • Page 5: Realignment

    TK-7150 REALIGNMENT 1. Modes 3. Panel Test Mode Setting method refer to “ADJUSTMENT”. User mode [PF3] Panel tuning mode Panel test mode 4. Panel Tuning Mode [PF1]+Power on Setting method refer to “ADJUSTMENT”. FPU data programming mode PC mode 5. PC Mode...
  • Page 6 6-1. Preface jacks. The operation is as follows (the transmit radio is the The TK-7150 uses flash memory to allow it to be easily master and the receive radio is a slave). upgraded when new features are released in the future.

  • Page 7: Installation

    (6 pin) on the rear of the transceiver is 13W/4Ω. Use the KES-5. You can reconfigure the name plates at any time. 3-1. Connection for the KES-5 with the TK-7150 Punch out the ■ When taking the AF output from the accessory...
  • Page 8 TK-7150 INSTALLATION 4. Use as Public Address Speaker 1. Remove the short plug from the 6-pin accessory connec- tor on the rear of the radio. (Remove the jumpers as de- scribed in Section 3-1.) 2. Cut off the end of the protective cover, insert the speaker cable into the protective cover, and insert it into pins 2 and 3.
  • Page 9 TK-7150 INSTALLATION 6-2. ANI Board Connection 6. Optional Board ■ Modification 6-1. Voice Scrambler Board Connection 1. Remove the cabinet and shielding cover from the trans- ■ Modification ceiver. 1. Remove the cabinet and shielding cover from the trans- 2. Remove the panel.
  • Page 10 TK-7150 INSTALLATION 7. Wiring of the Cable for Installing the 8. Horn Alert Function The HR1 and HR2 pin of the accessory connector (25-pin) Built-in Type GPS Unit or Other PC Board on the rear of the transceiver is a relay and maximum current 1.
  • Page 11 TK-7150 INSTALLATION 9. Special Instructions for Replacing the The C89 and C90 must contact securely the Final Amplifier Q5 Top view Q5 package To replace the Final Amp Q5, ensure to follow the instruc- tions given below: 9-1. C89 and C90 Positions 1.

  • Page 12: Circuit Description

    1. Outline The signal from the BPF is heterodyned with the first local The TK-7150 is a VHF/FM transceiver designed to operate oscillator signal from the PLL frequency synthesizer circuit at in the frequency range of 136 to 174MHz. Transmission out- the first mixer DBM (Q209, Q210, Q211 and Q212) to be- put power is 50 watts.
  • Page 13 TK-7150 CIRCUIT DESCRIPTION 2-4. Audio Amplifier 3-1. Microphone Circuit The recovered audio signal obtained from IC201 is ampli- The signal from the microphone passes through the mute fied and anti-aliasing filtered by IC712 (A/2), inputted to the switch (Q901) and is then routed to the Display unit (X54-340) AINR terminal of CODEC IC (IC713), and audio processed by and TX-RX unit (X57-657).
  • Page 14 TK-7150 CIRCUIT DESCRIPTION 3-4. Automatic Power Control, Circuit and Transmitter 1/3360 or a 1/2688, 1/2240 fixed counter in IC501, at the phase comparator in IC501. The VCXO operates at 16.8MHz The automatic power control (APC) circuit stabilizes the and its frequency stability is maintained within 2.5ppm (tem- transmitter output power at a predetermined level, and con- perature range of –30 to +60 degrees).
  • Page 15 TK-7150 CIRCUIT DESCRIPTION 5-3. DSP Circuit dio : turn on). When IGN falls, the CPU (IC701) output the pulse to IC102 set line to reverse the output Low → High The DSP circuit filters transmit/receive audio signal and after the programmed time expire (Timed power off func- encode/decode signalling (QT, DQT, MSK, DTMF, 2-Tone, tion).

  • Page 16: Semiconductor Data

    TK-7150 SEMICONDUCTOR DATA 1. CPU : 30620M8A-5H1GP (TX-RX Unit IC701) 1-1. Pin Function Pin No. Name Function Pin No. Name Function Go to port check mode HOLD Cannot Use (BUS Hold) HLDA Cannot Use (BUS Hold Status) L : Port check mode, H : User mode...
  • Page 17 TK-7150 SEMICONDUCTOR DATA 2. Shift Register 1 : BU4094BCFV (TX-RX Unit IC702) Pin No. Port Name Name I/O Function 2-1. Pin Function No Connect Pin No. Port Name Name I/O Function Qs’ Qs’ No Connect STROBE STB1 From CPU STB1 (Pin No.25)
  • Page 18 TK-7150 SEMICONDUCTOR DATA 5. Display CPU : 30622M4A-443GP (Display Unit IC904) 5-1. Pin Function Pin No. Name I/O Function Pin No. Name I/O Function DISP LCD Display ON/OFF L : On, H : Off PF3 Key Input PF4 Key Input...
  • Page 19 TK-7150 SEMICONDUCTOR DATA 6. DSP : 320VC5402PGE (TX-RX Unit IC710) 6-1. Pin Function Pin No. Name Function Pin No. Name Function 1,2,12,15, NC1~NC18 Not used (No connect) BFSX0 Frame sync.for transmitter input 35~38, (LRCK : 19.2kHz) 71~74,80, BFSX1 Not used (No connect)

  • Page 20: Components Description

    TK-7150 COMPONENTS DESCRIPTION 1. Display Unit (X54-3400-10) Ref. No. Part Name Description IC711 Inverter Ref. No. Part Name Description IC901 Voltage regulator IC712 AF amplifier IC902 Voltage detector IC713 CODEC IC714 MIC amplifier/AGC IC904 Q901 MIC switch IC715 Buffer amplifier...
  • Page 21 TK-7150 COMPONENTS DESCRIPTION Ref. No. Part Name Description Ref. No. Part Name Description Q513 Transistor Buffer amplifier D104~106 Diode DC switch Q514 Transistor Inverter D108 Diode Surge protector Q515 Transistor Buffer amplifier D109 Zener diode Voltage reference Q516 Transistor Amplifier...

  • Page 22: Parts List

    TK-7150 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 : Other Areas Teile ohne Parts No. werden nicht geliefert. TK-7150 (Y51-4910-10) DISPLAY UNIT (X54-3400-10) Desti- Desti- Ref. No. Address Parts No.
  • Page 24 TK-7150 PARTS LIST DISPLAY UNIT (X54-3400-10) TX-RX UNIT (X57-6570-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R922 RK73GB1J333J CHIP R 1/16W CM73F2H241J CHIP C 240PF ✽ R923-925 RK73GB1J102J CHIP R 1.0K...
  • Page 25 TK-7150 PARTS LIST TX-RX UNIT (X57-6570-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C211 CK73GB1C104K CHIP C 0.10UF C286 CC73GCH1H120J CHIP C 12PF C212 CK73GB1H103K CHIP C 0.010UF C287...
  • Page 26 TK-7150 PARTS LIST TX-RX UNIT (X57-6570-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C562 CK73GB1H102K CHIP C 1000PF C766 CC73GCH1H151J CHIP C 150PF C563 CK73GB1H103K CHIP C 0.010UF C767...
  • Page 27 TK-7150 PARTS LIST TX-RX UNIT (X57-6570-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation CN731-756 E23-1081-05 TERMINAL L703 L92-0138-05 FERRITE CHIP ✽ J700 E58-0494-05 SUB SOCKET (D) L704-713 L92-0140-05 FERRITE CHIP...
  • Page 28 TK-7150 PARTS LIST TX-RX UNIT (X57-6570-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R114 RK73GB1J473J CHIP R 1/16W R256 RK73GB1J103J CHIP R 1/16W R115 RK73GB1J104J CHIP R 100K 1/16W...
  • Page 29 TK-7150 PARTS LIST TX-RX UNIT (X57-6570-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R546 RK73GB1J330J CHIP R 1/16W R774 RK73GB1J472J CHIP R 4.7K 1/16W R547 RK73GB1J472J CHIP R 4.7K...
  • Page 30 TK-7150 PARTS LIST TX-RX UNIT (X57-6570-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R854 RK73GB1J474J CHIP R 470K 1/16W IC700 BU4094BCFV MOS IC ✽ R857 RK73GB1J103J CHIP R 1/16W...
  • Page 31 TK-7150 PARTS LIST TX-RX UNIT (X57-6570-10) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation Q520 2SC4116(GR) TRANSISTOR Q521 DTC144EE DIGITAL TRANSISTOR Q700 2SK1824 Q701 DTC114EE DIGITAL TRANSISTOR Q702 DTC144EE DIGITAL TRANSISTOR...

  • Page 32: Exploded View

    TK-7150 EXPLODED VIEW : N09-2409-05 : N10-2070-46 M3 x 8 : N67-3008-46 M2.6 x 6 : N80-2606-46 M2.6 x 6 (Br-Tap) : N87-2606-46 M2.6 x 20 (Br-Tap) : N87-2620-46 M3 x 8 (Br-Tap) BLK : N87-3008-45 48 (A/2) TX-RX unit...

  • Page 33: Packing

    TK-7150 PACKING 46 Microphone (T91-0621-15) 4 Name plate (B11-1297-04) 5 Instruction manual (B62-1619-00) 9 DC cord assy Protection bag (E30-3478-05) 37 Bracket (J29-0697-03) Pamphlet x 2 43 Screw set (N99-2033-05) 20 Protective cover Packing fixture (F29-0478-05) 38 Band (J61-0307-05) 35 Holder...

  • Page 34: Adjustment

    TK-7150 ADJUSTMENT 1. Key Functions 2. Panel Test Mode 1-1. Front Panel The transceiver’s transmission output, receiver sensitiv- ity, and other items are measured and QT, DQT, 2-Tone and Volume Display Selector Power switch DTMF signalling is decoded in this mode.
  • Page 35 TK-7150 ADJUSTMENT 3-2. Tuning Item and Display (✽✽✽ : 1~256) Tuning item LCD display S-LCD Signalling F r e q _ _ _ _ _ ✽ ✽ ✽ Frequency – No signalling F r e q _ L O _ _ ✽ ✽ ✽...
  • Page 36 TK-7150 ADJUSTMENT 3-3. Flow Chart : Use the [PF1] and [PF2] keys. : Use the [PF6] key. 3. Use the [SELECTOR] knob to set an adjustment value (1 to 256) for each adjustment item. 4. Use the [PF6] key to move to the next item.
  • Page 37 TK-7150 ADJUSTMENT 4. Test Equipment Required for Alignment Test Equipment Major Specifications 1. Standard Signal Generator Frequency Range 136 to 174MHz (SSG) Modulation Frequency modulation and external modulation Output 0.1µV to greater than 1mV 2. Power Meter Input Impedance 50Ω...
  • Page 38 TK-7150 ADJUSTMENT 5. Warnings When Removing or Installing Packing the Shielding Cover 1. When handling with the shielding cover, do not damage the components on the TX-RX unit. 2. When installing the shielding cover, insert the cover from the rear side.
  • Page 39 TK-7150 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 3. PLL lock 1) CH-SIG : 3-1 DC VM TX-RX CV TX-RX TC502 8.2V ± 0.1V voltage Power meter 2) CH-SIG : 3-1 TC501 PTT : ON...
  • Page 40 TK-7150 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 8. TX high 1) CH-SIG : 3-1 Power meter Rear TX-RX VR1 53.0W± 0.5W power Select _ _H Ammeter panel Hi_Power_✽✽✽ in tuning mode PTT : ON...
  • Page 41 TK-7150 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment • Narrow 4) CH-SIG : 2-1 Power meter Rear Front Selector ± 1.75kHz ± 0.05kHz [PF5] key : Set the narrow Deviation panel panel knob meter Max_Dev_ _✽✽✽...
  • Page 42 TK-7150 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 14. DQT 1) CH-SIG : 1-7 Power meter Rear Front Selector ± 0.75kHz ± 0.05kHz deviation Select DQT_Dev_ _✽✽✽ Deviation panel panel knob • Wide in tuning mode...
  • Page 43 TK-7150 ADJUSTMENT Measurement Adjustment Item Condition Specifications/Remarks Test- Unit Terminal Unit Parts Method equipment 18. Single tone 1) CH-SIG : 1-11 Power meter Rear Front Selector ± 3.0kHz ± 0.1kHz deviation Select Tone_Dev_✽✽✽ Deviation panel panel knob • Wide in tuning mode...
  • Page 44 TK-7150 ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Test- Unit Terminal Unit Parts Method Remarks equipment 21. Squelch 1) CH-SIG : 1-1 Rear Front Selector Adjust to point of Set the value to 255. open Select Sql_O_ _ _ _✽✽✽ panel...

  • Page 45: Pc Board

    TK-7150 PC BOARD DISPLAY UNIT (X54-3400-10) Component side view (J72-0840-19) Component side Layer 1 Q905 Layer 2 POWER C931 Layer 3 Layer 4 Foil side VR901 Q902 R909 C923 R910 C922 IC904 X901 Q906 Q907 D912 D915 DM 1 J901...
  • Page 46 TK-7150 PC BOARD DISPLAY UNIT (X54-3400-10) Component side view + Foil side (J72-0840-19) Q905 CN905 POWER C931 C906 R922 VR901 Q902 R909 C923 R910 R919 CN902 C922 C928 IC904 C942 R949 R913 C941 D917 CN906 C905 C909 C914 X901 C925...

  • Page 47: Tx-Rx Unit (X57-6570-10)

    TK-7150 PC BOARD TX-RX UNIT (X57-6570-10) Component side view (J72-0839-19) Component side Layer 1 Layer 2 C735 Layer 3 Layer 4 CN102 Layer 5 Q716 D101 Layer 6 Foil side R122 C110 F100 Ref. No. Address Ref. No. Address K700...
  • Page 48 TK-7150 PC BOARD Component side TX-RX UNIT (X57-6570-10) Foil side view (J72-0839-19) Layer 1 J700 Layer 2 Layer 3 NC RXD2 TXD2 AO3 AO2 TXD3 RXD3 Layer 4 Layer 5 Layer 6 Foil side D103 R112 Ref. No. Address Ref. No. Address...
  • Page 49 TK-7150 PC BOARD TX-RX UNIT (X57-6570-10) Component side view + Foil side (J72-0839-19) Component side J700 Layer 1 Layer 2 HR2 AO4 AO1 DEO HR1 TXS Layer 3 C735 RXD3 TXD3 TXD2 RXD2 Layer 4 CN102 Layer 5 Q716 D101...

  • Page 50: Schematic Diagram

    TK-7150 SCHEMATIC DIAGRAM Note : Components marked with a dot (•) are parts of layer 1. TX-RX UNIT (X57-6570-10) LCD ASSY CN102 RSSI RSSI CALL SP OP PDET PDET BCLKR1 BCLKR1 TEMP1 TEMP1 TEMP2 TEMP2 4.98V L704 1 VCCA 3.3D 3.3D...
  • Page 51 TK-7150 SCHEMATIC DIAGRAM Note : Components marked with a dot (•) are parts of layer 1. TX-RX UNIT (X57-6570-10) D101 PROTECTION OF REVERSE CONNECTION TEMP1 :ZSA5A27 +3dBm TEMP2 :02DZ6.2(Y) RSSI Q502 1000p Q506 2SA1832(GR) RIPPLE FILTER :MA4PH633 PDET C508 2SK1215(E) 6.08V...

  • Page 52: Block Diagram

    TK-7150 TK-7150 BLOCK DIAGRAM BATT Q507,D501,503,505,506,D511 D101 Q103 2SK508NV(K52), 1SV282x4, 1SV278 12.0dB 3mΩ/1W 136~174MHz 50Ω DSA3A1-FK 2SJ506(S) 19.0dB Pout= Q512 D3,D4 –117.0~ Idø=150mA 48.5dBm 10.0dB 7.0dB 2SC4116(GR) MA4PH633 –118.5dBm PROTECT 36dBm Idø=1.5A Idø=10mA Idø=15mA XB15A709 Q517 10dBm±2dB 17dBm 2SC4116(GR) IC104 50Ω...

  • Page 54: Terminal Function

    TK-7150 TERMINAL FUNCTION 1. Display Unit (X54-3400-10) (A/2) Pin No. Name Description Pin No. Name Description Hook signal input. “L” : On hook, “H” : Off hook CN901 (To remote speaker) Serial data input. BTL output for remote speaker output.
  • Page 55 TK-7150 TERMINAL FUNCTION Pin No. Name Description Pin No. Name Description PTOA PTT signal output. “L” : PTT on, “H” : PTT off Serial data input. L ≤ 0.05V, H ≥ 4.6V/30kΩ load Ground. DETO Detected signal output. DC coupled. Zo ≤ 100Ω...

  • Page 56: Options

    TK-7150 TERMINAL FUNCTION / OPTIONS 1. KES-5 (External Speaker) Pin No. Name Description 1-1. External View Power output after power switch. 13.6V± 15%, 1.1A max. at 25°C, 0.8A max. at 60°C TX sense signal output. Active high with 10kΩ pull-up to 5V. L ≤ 0.3V, H ≥ 4.8V Horn alert signal output 1.

  • Page 57: Specifications

    Narrow : 42dB Microphone Impedance ........600Ω Audio Distortion ..........Less than 1% at 1000Hz Kenwood follows a policy of continuous advancement in development. For this reason specifications may be changed without notice. FleetSync™ is a trademark of Kenwood Corporation.
  • Page 58 Leuvensesteenweg 248 J, 1800 Vilvoorde, Belgium KENWOOD ELECTRONICS FRANCE S.A. 13, Boulevard Ney, 75018 Paris, France KENWOOD ELECTRONICS U.K. LIMITED KENWOOD House, Dwight Road, Watford, Herts., WD18 9EB United Kingdom KENWOOD ELECTRONICS EUROPE B.V. Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands KENWOOD ELECTRONICS ITALIA S.p.A.

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