Kenwood TK-2310R Service Manual
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Kenwood TK-2310R Service Manual

Kenwood TK-2310R Service Manual

Vhf fm transceiver
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VHF FM TRANSCEIVER
TK-2310R
SERVICE MANUAL
Helical antenna
(T90-1099-15)
Button knob (PTT)
(K29-9425-03)
Button knob
(SIDE1/SIDE2)
(K29-9426-03)
Key top (16key)
(K29-9492-12)
Plastic cabinet assy
(A02-4142-03)
This product complies with the RoHS directive for the European market.
Knob (Selector)
(K29-9427-03)
Knob (Volume)
(K29-9309-13)
© 2011-1 PRINTED IN JAPAN
B51-8949-00 ( Y ) PDF
CONTENTS
GENERAL ....................................................2
SYSTEM SET-UP .........................................3
REALIGNMENT ...........................................3
DISASSEMBLY FOR REPAIR .....................9
CIRCUIT DESCRIPTION ...........................12
SEMICONDUCTOR DATA .........................17
COMPONENTS DESCRIPTION ................18
PARTS LIST ...............................................19
EXPLODED VIEW ......................................27
PACKING ...................................................28
ADJUSTMENT ...........................................29
TX-RX UNIT (X57-7880-31) ....................34
SCHEMATIC DIAGRAM ............................38
BLOCK DIAGRAM .....................................44
LEVEL DIAGRAM ......................................46
SPECIFICATIONS .................. BACK COVER
This product uses Lead Free solder.

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Summary of Contents for Kenwood TK-2310R

  • Page 1: Table Of Contents

    VHF FM TRANSCEIVER TK-2310R SERVICE MANUAL © 2011-1 PRINTED IN JAPAN B51-8949-00 ( Y ) PDF CONTENTS GENERAL ............2 SYSTEM SET-UP .........3 REALIGNMENT ...........3 DISASSEMBLY FOR REPAIR .....9 Helical antenna Knob (Selector) CIRCUIT DESCRIPTION ......12 (T90-1099-15) (K29-9427-03) SEMICONDUCTOR DATA ......17...

  • Page 2: General

    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 to any products herein at any time for improvement purposes. GENERAL...

  • Page 3: System Set-Up

    TK-2310R SYSTEM SET-UP Merchandise received Frequency range (MHz) RF power Type Choose the type of transceiver TX/RX 245~245.9875 5.0W TK-2310R A personal computer, programming interface (KPG-22/22A), Transceiver programming and FPU (programming software) are required for programming. (The frequency, TX power HI/LOW, and signaling data are programmed for the transceiver.)
  • Page 4 TK-2310R REALIGNMENT 3-6. Programming with PC 3. PC Mode If data is transferred to the transceiver from a PC with the 3-1. Preface FPU, the data for each set can be modified. The transceiver is programmed by using a personal com-...
  • Page 5 TK-2310R REALIGNMENT during Wireless Clone, such as when waveforms or elec- 4. Wireless Clone Mode tromagnetics are being performed at the workbench. 4-1. Outline • Wireless clone mode can be used ONLY by the autho- “Wireless Clone Mode” copies the transceiver data to an- rized service personnel.

  • Page 6: Self Programming Mode

    TK-2310R REALIGNMENT Key operation 5. Self Programming Mode Key Function Write mode for frequency data and signaling, etc. To be used ONLY by the authorized service person maintaining the Toggle between Zone selection and Channel selec- [Selector] tion user's equipment.
  • Page 7 TK-2310R REALIGNMENT 5-5. Item Setting Mode 5-6. Self Programming Mode flow chart ■ Channel selection mode flow chart In this mode, the selected item in the Item Selection mode can be programmed. When the [S] key is pressed in the Item Selection mode,...
  • Page 8 TK-2310R REALIGNMENT ■ Item setting mode flow chart 6. Firmware Version Information Mode Display Turn the transceiver ON with the [Side1] and [Side2] keys Current 245. 00000 held down. Then, the version is displayed during holding the setting value [1. RX frequency] [Side1] and [Side2] keys.

  • Page 9: Disassembly For Repair

    TK-2310R DISASSEMBLY FOR REPAIR 1. Removing the Case Assembly from the 3. Removing the TX-RX unit from the Chassis Chassis 1. Remove the selector knob a and volume knob b . 1. Remove the eleven screws f fixing the TX-RX unit.
  • Page 10 TK-2310R DISASSEMBLY FOR REPAIR 5. Attaching the Battery Release Lever to 6. Assembling the Battery Release Lever 1. Place the lever b onto the stopper a . the Case Assembly 2. Place the thick spring c onto the lever. 1. Insert one side of the shaft into the hole at the lever fitting 3.
  • Page 11 TK-2310R DISASSEMBLY FOR REPAIR 8. Mounting the Chassis to the Case 10. The Nuts of the Volume Knob and Assembly Channel Knob 1. Confirm that the waterproof packing attached to the Note that the shapes, colors and heights of nuts of the...

  • Page 12: Circuit Description

    TK-2310R CIRCUIT DESCRIPTION 1. Frequency Configuration The receiver utilizes double conversion. The first IF is 49.95MHz and the second IF is 450kHz. The first Local os- cillator is supplied from the PLL circuit. The PLL circuit in the transmitter generates the neces- sary frequencies.
  • Page 13 TK-2310R CIRCUIT DESCRIPTION 2-3. IF Amplifier Circuit 2-4. Audio Amplifier Circuit The first IF signal is passed through a four-pole mono- The demodulated signal from IC401 is sent to an audio lithic crystal filter (XF401) to remove the adjacent channel power amplifier (IC815) through baseband IC (IC812), where signal.
  • Page 14 TK-2310R CIRCUIT DESCRIPTION 3-2. Driver and Final Amplifier Circuit 3-3. APC Circuit The signal from the T/R switch (D18 is on) is amplified by The APC circuit always monitors the current flowing the RF AMP (Q201) and pre-drive amplifier (Q203) to 50mW.
  • Page 15 TK-2310R CIRCUIT DESCRIPTION 5-2. Memory Circuit The Memory circuit consists of the MCU (IC820) and EEPROM (IC810). The EEPROM has a capacity of 512k bits TX/RX BUFF BUFF (TX: High) RF AMP and stores the channel information, the last channel data, the scan on status, and other parameters.
  • Page 16 TK-2310R CIRCUIT DESCRIPTION ■ High-speed data (2-tone) 5-4. Key Input Keys and channel selector circuit. High-speed data (HSD) is output from pin 3 of the MCU. The signal from the keys and channel selector are direct- HSD deviation made by an adjustment in the MCU is passed ly input to the MCU, as shown in Figure 10.

  • Page 17: Semiconductor Data

    TK-2310R SEMICONDUCTOR DATA MCU: F363BEDFEKDLC (TX-RX unit: IC820) Pin No. Signal Name Function CM_DTI Baseband IC data input Pin No. Signal Name Function CM_CNS Baseband IC chip select output BSHIFT CPU clock frequency shift LSDO DC_SW APC voltage discharge switch...

  • Page 18: Components Description

    TK-2310R COMPONENTS DESCRIPTION TX-RX unit (X57-7880-31) Ref. No. Use / Function Operation / Condition Q804 DC switching 33MS from 33M Ref. No. Use / Function Operation / Condition Q805 DC switching Green/Red LED PLL IC TX/RX 1st local OP amplifier...

  • Page 19: Parts List

    TK-2310R 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 20 TK-2310R PARTS LIST ✽ New Parts. indicates safety critical components. L : Scandinavia K : USA P : Canada Parts without Parts No. are not supplied. Y : PX (Far East, Hawaii) T : England E : Europe Les articles non mentionnes dans le Parts No. ne sont pas fournis.
  • Page 21 TK-2310R PARTS LIST TX-RX UNIT (X57-7880-31) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C37 ,38 CK73HB1A104K CHIP C 0.10UF C245 CC73HCH1H150J CHIP C 15PF CK73HB1H471K CHIP C 470PF C246 CC73GCH1H090B CHIP C 9.0PF...
  • Page 22 TK-2310R PARTS LIST TX-RX UNIT (X57-7880-31) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation C449 CK73HB1E103K CHIP C 0.010UF K C869 CK73GB0J106K CHIP C 10UF C450 CC73HCH1H010B CHIP C 1.0PF...
  • Page 23 TK-2310R PARTS LIST TX-RX UNIT (X57-7880-31) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation CD401 L79-1866-05 TUNING COIL RK74HB1J101J CHIP-COM 100 1/16W RK75HA1J102J CHIP-COM 1.0K 1/16W CF402 L72-1012-05 CERAMIC FILTER CP802 SMALL FIXED INDUCTOR(4.7UH)
  • Page 24 TK-2310R PARTS LIST TX-RX UNIT (X57-7880-31) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R201 RK73HB1J472J CHIP R 4.7K 1/16W R433 RK73HB1J105J CHIP R 1.0M 1/16W R202 RK73HB1J182J CHIP R 1.8K...
  • Page 25 TK-2310R PARTS LIST TX-RX UNIT (X57-7880-31) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation R861 RK73HB1J823J CHIP R 1/16W R956 RK73HB1J471J CHIP R 1/16W R865 RK73HB1J223J CHIP R 1/16W R960,961...
  • Page 26 TK-2310R PARTS LIST TX-RX UNIT (X57-7880-31) Desti- Desti- Ref. No. Address Parts No. Description Ref. No. Address Parts No. Description parts nation parts nation 2SC5636 TRANSISTOR KTC4075E(Y,GR) TRANSISTOR Q4 ,5 MCH3914(7)-H SSM6L05FU-F SSM3J05FU-F Q8 ,9 2SC5636 TRANSISTOR SSM3J05FU-F 2SK1830F Q201...

  • Page 27: Exploded View

    TK-2310R EXPLODED VIEW TX-RX unit A : N14-0848-05 B : N14-0849-05 C : N30-2604-48 D : N30-2606-48 E : N83-2005-48 Parts with the exploded numbers larger than 700 are not supplied.

  • Page 28: Packing

    TK-2310R PACKING 6 Instruction manual (B62-2310-00) 704 Protection bag 50 Belt clip (KBH-10) 48 Holder (SP/MIC) 60 Screw set 3 Cap 63 Helical antenna 705 Packing fixture 706 Item carton case Parts with the exploded numbers larger than 700 are not supplied.

  • Page 29: Adjustment

    TK-2310R ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifications Frequency Range 245 to 246MHz Standard Signal Generator (SSG) Modulation Frequency modulation and external modulation Output –127dBm/0.1µV to greater than –47dBm/1mV Input Impedance 50Ω Operation Frequency 245 to 246MHz...
  • Page 30 TK-2310R ADJUSTMENT Frequency and Signaling Preparations for Tuning the Transceiver The transceiver has been adjusted for the frequencies Before attempting to tune the transceiver, connect the shown in the following table. When required, re-adjust them unit to a suitable power supply.
  • Page 31 TK-2310R ADJUSTMENT Common Section Measurement Adjustment Item Condition Specifications / Remarks Test- Unit Terminal Unit Parts Method equipment 1. Setting 1) BATT terminal votage: 7.5V 2) SSG standard modulation [Narrow] MOD: 1kHz, DEV: 1.5kHz 2. Receive 1) (Auto tuning) TX-RX CVIN TX-RX FPU (3.0V±0.1V)
  • Page 32 TK-2310R ADJUSTMENT Measurement Adjustment Item Condition Specifications / Remarks Test- Unit Terminal Unit Parts Method equipment 6. DQT 1) TEST CH: Center Power 0.35kHz ±40Hz Deviation Deviation meter filter meter [Narrow] LPF: 3kHz Deviation HPF: OFF meter PTT: ON Oscilloscope 7.
  • Page 33 TK-2310R ADJUSTMENT Measurement Adjustment Item Condition Specifications / Remarks Test- Unit Terminal Unit Parts Method equipment 3. Tight 1) TEST CH: Low Press [Start] Squelch SSG otuput: –114dBm (Auto tuning) (0.45µV) Oscilloscop [Narrow] SSG MOD: 1.5kHz 4. Low RSSI 1) TEST CH: Low [Narrow] SSG otuput: –120dBm...

  • Page 34: Pc Board

    TK-2310R PC BOARD TX-RX UNIT (X57-7880-31) Component side view (J79-0287-19) J79-0287-19 R955 C945 D819 COM1 BPF1 COM2 COM3 COM4 SEG1 C811 SEG2 SEG3 CP837 SEG4 SEG5 R956 SEG6 D831 SEG7 R707 BATT SEG8 R703 D830 SEG9 SEG10 SEG11 BPF2 R701...
  • Page 35 TK-2310R PC BOARD TX-RX UNIT (X57-7880-31) Component side view (J79-0287-19) C819 R955 C307 R312 R306 R311 C945 D819 D824 D818 L302 Q304 IC301 COM1 Q305 COM2 CP836 C311 R318 COM3 IC810 R308 COM4 SEG1 Q822 SEG2 R235 C831 SEG3 CP837...
  • Page 36 TK-2310R PC BOARD TX-RX UNIT (X57-7880-31) Foil side view (J79-0287-19) SIDE2 SIDE1 C256 C818 R305 D301 Q301 L221 R456 C474 C495 L418 C466 Q407 C302 C467 C469 C250 R458 D408 R462 C486 C462 R209 R213 L217 C482 C484 R463 C209...
  • Page 37 TK-2310R PC BOARD TX-RX UNIT (X57-7880-31) Foil side view (J79-0287-19) J79-0287-19 SIDE2 C406 C818 L410 L408 D803 C455 C452 C447 C444 R450 R445 R440 C456 C464 R443 CF402 C463 C450 C474 R444 C495 R994 C466 R439 R844 R860 C449 R416...

  • Page 38: Schematic Diagram

    TK-2310R SCHEMATIC DIAGRAM TX-RX UNIT (X57-7880-31) S I G N BUSY B30-2314-05 B30-2315-05 B30-1790-05 D 8 0 1 D 8 0 4 D 8 0 5 D C S W BLUE LED 2 S K 1 8 3 0 F D C S W ON:3.3V...
  • Page 39 TK-2310R SCHEMATIC DIAGRAM TX-RX UNIT (X57-7880-31) TH_DET THDET THDET AFCONT AFCONT CVIN CVIN BATT 3.3V 3.3V E E P RO M I C 8 1 0 CM_CSN CM_DTI V C C H o L D LCDBL R 9 7 8...
  • Page 40 TK-2310R SCHEMATIC DIAGRAM TX-RX UNIT (X57-7880-31) THDET THDET AFCONT CVIN BATT C P 1 100x4 5.0V 5.0V R 1 6 PL_STB PL_DAT LOIN PL_CLK PL_UL CVIN D C AMP I C 2 T C X O 3.3V 7 LD B D 7 5 4 2 F V M...
  • Page 41 TK-2310R SCHEMATIC DIAGRAM TX-RX UNIT (X57-7880-31) THDET R 6 0 3.7V 1 5 n C 2 0 C 2 9 C 3 4 R 6 2 LOIN 2.5V 4 7 p 4 7 0 p C 7 2 2 S C 5 6 3 6 C 7 3 2.2V...
  • Page 42 TK-2310R SCHEMATIC DIAGRAM TX-RX UNIT (X57-7880-31) THDET R 2 1 1 R 2 1 3 D R I V E R 2 0 3 R 2 0 6 1 . 0 k C 2 2 2 R: 0V R D 0 1 M U S 1 - T 1 1 3 DRVOUT T:1.5V...
  • Page 43 TK-2310R SCHEMATIC DIAGRAM TX-RX UNIT (X57-7880-31) THDET F I N A L A N T S W DRVOUT R D 0 7 M U S 2 B T 1 1 2 A N T STRIP LINE L 2 2 1...

  • Page 44: Block Diagram

    TK-2310R BLOCK DIAGRAM X57-788 D818-D821,D824-D828 B30-2337-05 2SC5636 RF BUFFER LCD BACK LIGHT PL_STB Q820 2SC4617(S) PL_DAT VHF: 33MS 294.95MHz Q821 2SB1694 245MHz~2 D817 MA2S111-F PL_CLK LCDBL MCH3914(7)-H SWIN LCD DRIVER D6,D9 HVC375B-E PL_UL AK1541 D16 HVC350B 2SC5636 2SC56 LCDAT LCLD...
  • Page 45 TK-2310R BLOCK DIAGRAM 5636 VHF: 245MHz~ UFFER 245.9875MHz VHF: 294.95MHz~295.9375MHz (RX) 245MHz~245.9875MHz (TX) 75B-E D17,D18 Q201 Q203 Q204 Q205 D201,D202 HVC131 2SC5636 2SC5636 HSC277 2SC5636 2SC5455-A RD01MUS1-T113 RD07MUS2BT112 D203,D204 RN142S RF BUFFER TX/RX RF AMP RF AMP PRE DRIVE DRIVE AMP...

  • Page 46: Level Diagram

    TK-2310R LEVEL DIAGRAM...

  • Page 47: Optional Accessories

    TK-2310R OPTIONAL ACCESSORIES KNB-29N (Ni-MH Battery Pack) KNB-53N (Ni-MH Battery Pack) ■ External View ■ External View ■ Specifications ■ Specifications Voltage ......7.2V (1.2V x 6) Voltage ......7.2V (1.2V x 6) Battery capacity ..1500mAh Battery capacity ..1400mAh KNB-45L (Li-ion Battery Pack) ■...

  • Page 48: Specifications

    Suite 2504, 25/F, Tower 2, Nina Tower, No. 8 Yeung Uk Road, Bp 58416 Villepinte, 95944 Roissy Ch De Gaulle Cedex Tsuen Wan, New Territories, Hong Kong KENWOOD House, Dwight Road, Watford, Herts., 1 Ang Mo Kio Street 63, Singapore 569110 WD18 9EB United Kingdom...
  • Page 49 TK-2310R TK-2310R PC BOARD PC BOARD TX-RX UNIT (X57-7880-31) Component side view (J79-0287-19) TX-RX UNIT (X57-7880-31) Component side view (J79-0287-19) C819 J79-0287-19 R955 R312 C307 R306 R311 D819 C945 D824 D818 L302 Q304 IC301 COM1 BPF1 Q305 COM2 CP836 C311...
  • Page 50 TK-2310R TK-2310R PC BOARD PC BOARD TX-RX UNIT (X57-7880-31) Foil side view (J79-0287-19) TX-RX UNIT (X57-7880-31) Foil side view (J79-0287-19) J79-0287-19 SIDE2 SIDE1 C406 C256 C818 R305 D301 L410 L408 C455 C452 D803 C447 C444 R450 Q301 C456 R445 R440...
  • Page 51 TX-RX UNIT (X57-7880-31) BUSY S I G N TH_DET THDET THDET THDET THDET THDET THDET B30-2314-05 THDET R 2 1 1 R 2 1 3 D R I V E B30-2315-05 AFCONT AFCONT AFCONT R 2 0 3 F I N A L B30-1790-05 CVIN CVIN...
  • Page 52 X57-788 D818-D821,D824-D828 B30-2337-05 2SC5636 VHF: 245MHz~ RF BUFFER LCD BACK LIGHT 245.9875MHz PL_STB Q820 2SC4617(S) PL_DAT VHF: 33MS 294.95MHz~295.9375MHz (RX) Q821 2SB1694 245MHz~245.9875MHz (TX) D817 MA2S111-F PL_CLK LCDBL MCH3914(7)-H LCD DRIVER SWIN D6,D9 HVC375B-E D17,D18 Q201 Q203 Q204 Q205 D201,D202 HVC131 PL_UL AK1541 D16 HVC350B...

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