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Kenwood TK-3301 Service Manual
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Kenwood TK-3301 Service Manual

Uhf fm transceiver
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UHF FM TRANSCEIVER
TK-3301
SERVICE MANUAL
Antenna cover
(F07-1882-23)
Button knob (PTT)
(K29-9425-03)
Button knob
(Side1/Side2)
(K29-9426-03)
Plastic cabinet assy
(A02-4082-03)
RoHS
This product complies with the
Knob (Selector)
(K29-9427-03)
Knob (Volume)
(K29-9309-13)
directive for the European market.
© 2009-6 PRINTED IN JA PAN
B51-8869-00 ( N ) 84
CONTENTS
GENERAL .....................................................2
REALIGNMENT ...........................................3
DISASSEMBLY FOR REPAIR ......................4
CIRCUIT DESCRIPTION ..............................7
SEMICONDUCTOR DATA .........................10
COMPONENTS DESCRIPTION .................11
TERMINAL FUNCTION .............................11
PARTS LIST ...............................................12
EXPLODED VIEW ......................................18
PACKING ....................................................19
ADJUSTMENT ..........................................20
TX-RX UNIT (X57-7772-70) ...................24
SCHEMATIC DIAGRAM ............................28
BLOCK DIAGRAM .....................................32
LEVEL DIAGRAM ......................................34
SPECIFICATIONS ......................................35
.
This product uses Lead Free solder.

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Summary of Contents for Kenwood TK-3301

  • Page 1: Table Of Contents

    UHF FM TRANSCEIVER TK-3301 SERVICE MANUAL © 2009-6 PRINTED IN JA PAN B51-8869-00 ( N ) 84 CONTENTS Knob (Selector) Antenna cover (K29-9427-03) (F07-1882-23) Knob (Volume) GENERAL .............2 (K29-9309-13) REALIGNMENT ...........3 DISASSEMBLY FOR REPAIR ......4 CIRCUIT DESCRIPTION ......7 SEMICONDUCTOR DATA ......10 COMPONENTS DESCRIPTION ....11...

  • Page 2: General

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

  • Page 3: Realignment

    TK-3301 REALIGNMENT 2. When the POWER is switched on, user mode can be en- 1. Modes tered immediately. When the PC sends a command, the User mode transceiver enters PC mode. When data is read from the transceiver, the red LED lights.

  • Page 4: Disassembly For Repair

    TK-3301 REALIGNMENT KPG-22 or KPG-22A or KPG-22A+KCT-53U Illustration is KPG-22 Gray – Gray/Black 1.5D-XV Lead wire – 1.5D-XV Shield wire Tuning cable (E30-3216-05) D-SUB D-SUB (25-pin) (9-pin) KCT-53U KPG-22 KPG-22A KPG-22A Transceiver Transceiver Transceiver Fig. 1 DISASSEMBLY FOR REPAIR 5. Remove the solder of the positive terminal with a solder- 1.
  • Page 5 TK-3301 3. Removing the Battery Release Lever 5. Assembling the Battery Release Lever 1. Place the lever w onto the stopper q. from the Case Assembly 2. Place the thick spring e onto the lever. 1. Press the upper part of the lever toward the inside of the 3.
  • Page 6 TK-3301 DISASSEMBLY FOR REPAIR 7. Mounting the Chassis to the Case Assembly 8. The Nuts of the Volume Knob and Channel Knob 1. Confirm that the waterproof packing attached to the Note that the shapes, colors and heights of nuts of the...

  • Page 7: Circuit Description

    TK-3301 CIRCUIT DESCRIPTION ■ First Mixer 1. Frequency Confi guration The signal from the front end is mixed with the fi rst local The receiver utilizes double conversion. The first IF is oscillator signal generated in the PLL circuit by Q203 to pro- 38.85MHz and the second IF is 450kHz.
  • Page 8 TK-3301 CIRCUIT DESCRIPTION ■ Receive Signaling 4. Transmitter System • QT/DQT ■ Microphone Amplifi er The output signal from FM IC (IC201) enters the MCU The signal from the microphone passes through the (IC306) through IC308. IC306 determines whether the QT or IC308.
  • Page 9 TK-3301 CIRCUIT DESCRIPTION ■ Memory Circuit (2/2) controls the VG of the RF power amplifier and drive amplifi er to make both voltages the same. Memory circuit consists of the MCU (IC306) and an EE- The change of power high/low is carried out by the PROM (IC305).

  • Page 10: Semiconductor Data

    TK-3301 SEMICONDUCTOR DATA MCU: R5F212CCKCMD (TX-RX unit IC306) Pin No. Signal Name Function Pin No. Signal Name Function 5T_C 5T control Serial data input PLL_STB PLL strobe Baseband IC data output 5C_C 5C control DI/O I/O Baseband IC data input / output...

  • Page 11: Components Description

    TK-3301 COMPONENTS DESCRIPTION TX-RX unit (X57-7772-70) Ref. No. Part Name Description Ref. No. Part Name Description PLL system IC Q204 Low noise amplifi er Q301 Transistor DC switch/ Red color LED IC101 IC201 FM system IC Q302 Transistor DC switch/ Green color LED...

  • Page 12: Parts List

    TK-3301 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 13 TK-3301 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 : Eu rope Les articles non mentionnes dans le Parts No. ne sont pas fournis.
  • Page 14 TK-3301 PARTS LIST TX-RX UNIT (X57-7772-70) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation CK73HB1H471K CHIP C 470PF C202 CK73FB0J106K CHIP C 10UF CC73HCH1H050B CHIP C 5.0PF C203...
  • Page 15 TK-3301 PARTS LIST TX-RX UNIT (X57-7772-70) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C331 CK73HB1A104K CHIP C 0.10UF L40-5681-86 SMALL FIXED INDUCTOR (0.56UH) C332 CC73HCH1H050B CHIP C 5.0PF...
  • Page 16 TK-3301 PARTS LIST TX-RX UNIT (X57-7772-70) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation RK73HB1J101J CHIP R 1/16W R201 RK73HB1J823J CHIP R 1/16W RK73HB1J100J CHIP R 1/16W R203...
  • Page 17 TK-3301 PARTS LIST TX-RX UNIT (X57-7772-70) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R361 RK73GB2A000J CHIP R 1/10W KTC4075E(Y,GR) TRANSISTOR R362 RK73HB1J184J CHIP R 180K 1/16W 2SC4774...

  • Page 18: Exploded View

    TK-3301 EXPLODED VIEW Dx10 MIC301 TX-RX unit CF201 : N14-0848-05 : N14-0849-05 C M2.6 x 6 : N30-2606-48 D M2 x 5 : N83-2005-48 Model name plate Parts with the exploded numbers larger than 700 are not supplied. If a part reference number is listed in a box on the exploded view of the PCB, that part does not come with the PCB.

  • Page 19: Packing

    TK-3301 PACKING 702 Pamphlet 60 AC adapter 59 Charger (W08-0992-05): E 6 Instruction manual (W08-0988-05) 61 AC adapter (B62-2154-00) (W08-0993-05): T 703 Protection bag 706 Battery assy 41 Belt hook (J29-0734-05) 50 Screw set (N99-2046-05) 5 Cap (B09-0725-03) 704 Packing fixture...

  • Page 20: Adjustment

    TK-3301 ADJUSTMENT Test Equipment Required for Alignment Test Equipment Major Specifi cations Frequency Range Operational frequency range of the transceiver Standard Signal Generator (SSG) Modulation Frequency modulation and external modulation Output –127dBm/0.1µV to greater than –47dBm/1mV Input Impedance 50Ω RF Power Meter...
  • Page 21 TK-3301 ADJUSTMENT ■ ANT cable (E30-3418-05) ■ Signaling Modify the cable as shown below. Signaling No. None None None 100Hz Square Wave QT 67.0Hz QT 67.0Hz QT 151.4Hz QT 151.4Hz QT 250.3Hz QT 250.3Hz DQT D023N DQT D023N DQT D754I...
  • Page 22 TK-3301 ADJUSTMENT Common Section Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 1. Setting 1) BATT terminal votage: 7.5V 2) SSG standard modulation MOD: 1kHz, DEV: 1.5kHz 2. VCO lock 1) CH: 5...
  • Page 23 TK-3301 ADJUSTMENT Receiver Section Measurement Adjustment Item Condition Specifi cations / Remarks Test- Unit Terminal Unit Parts Method equipment 1. BPF Wave 1) Center frequency Check the waveform Adjust Spectrum analyzer setting cable as shown to the Center-f: 446MHz right.

  • Page 24: Pc Board

    TK-3301 PC BOARD TX-RX UNIT (X57-7772-70) Component side view (J79-0250-09) F301 C303 BATT+ MIC301 AFMUTE CP301 – C321 R201 C212 AFCONT THDET R309 IC303 MDSW R310 Q304 C331 C318 CN302 C310 RESET CN303 R317 MODE R316 R319 C337 R324 L304...

  • Page 25: Tx-Rx Unit (X57-7772-70)

    TK-3301 PC BOARD TX-RX UNIT (X57-7772-70) Component side view (J79-0250-09) J79-0250-09 Q108 L302 R135 C154 C325 L116 Q107 R302 C315 Q109 R303 C313 C304 C311 C307 C305 C136 PCTV SP– R120 IC301 CN301 R123 – R126 Q301 C395 Q302 C396...
  • Page 26 TK-3301 PC BOARD TX-RX UNIT (X57-7772-50) Foil side view (J79-0250-09) J79-0250-09 SIDE1 L115 L214 C177 R223 L113 C176 C170 C252 R226 C256 L112 R227 C266 C247 C245 C259 C172 R222 R140 C243 C254 C241 R107 C167 C111 C253 C113 R138...
  • Page 27 TK-3301 PC BOARD TX-RX UNIT (X57-7772-50) Foil side view (J79-0250-09) SIDE2 R214 L202 C226 XF201 CD201 R216 Q203 D301 R218 R228 L204 C220 C216 R213 C223 C234 C231 R219 C233 C232 C222 R217 C408 L201 R101 C102 R394 C214 C209...

  • Page 28: Schematic Diagram

    TK-3301 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7772-70) PLL_CLK PLL_DAT 2.54V RK75HA1J101J PLL_STB PLL SYSTEM IC 2SC5636 MB15A02PFV2E1 RECTIFICATION RF AMP KTC4075E(Y,GR) 4.99V 470p 4.92V 0.01u 1.5k TCXO 4.42V F301 L77-3042-05 F53-0321-05 4.88V 1.5A L301 BATT VCoNT 180k 0.68V BATT oUTPUT 2.2k 12.8MHz...
  • Page 29 TK-3301 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7772-70) 4.81V RF AMP RF AMP 4.45V 2SC5636 0.78V 2SC5636 R:3.81V T:3.71V 680k 470k 3.52V T:3.19V 3.99V D4,8 270n FREQUENCY CONTROL /VCO 180n 1SV325F 0.3p 2SK1875-F(V) RIPPLE FILTER KTC4075E(Y,GR) MODULATOR KTC4075E(Y,GR) RECTIFICATION 2ND_LO 2ND_LO QTTCXO...
  • Page 30 TK-3301 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7772-70) R:7.5V R105 TX DRIVE AMP TX FINAL AMP TX/RX T:4.09V T:3.75V T:2.63V T:7.34V RF SW Q103 Q106 C109 T:3.18V R102 L107 C115 C125 R109 R141 L104 RD01MUS1-T113 R119 RD02MUS1BT112 MC2858 C101 C103 1.0n 2.7n...
  • Page 31 TK-3301 SCHEMATIC DIAGRAM TX-RX UNIT (X57-7772-70) C173 C175 C177 ANT SW 0.5p 2.5p STRIP LINE C166 D103 C170 R137 L113 L114 L115 HSC277 100p L112 R140 ANT SW ANT SW R:4.85V T:0.01V R:4.85V L208 R:4.84V R:4.36V L204 R:1.70V Q203 3SK318 R:4.8V...

  • Page 32: Block Diagram

    TK-3301 BLOCK DIAGRAM X57-7772-70 (TX-RX UNIT) Fuse 1.5A F301: 5C_C F53-0321-05 Battery Protector Voltage Regulator D301:GN1G 5T_C IC303: XC6209B502PR PLL_UL Rectifier Loop Switch Filter Oscillator Rectifier Q1:KTC4075E(Y,GR) Q304:DTB723YE : 446MHz Power Switch/ PLL_DAT AF Volium PLL IC 5R_C QTTCXO D302:...
  • Page 33 TK-3301 BLOCK DIAGRAM IC101: PCTV BA2904FVM Switch APC_SW Q108:2SK1824-A Tempera- Ripple TH_DET ture Filter Detector APC_SW Switch Switch Q6,Q10: TH101 Tx/Rx KTC4075E(Y,GR) Protector D101:UDZW5.1(B) Q107:RT1N441U Q109:RT1P441U 5T 5R Tx: 446MHz Buffer Tx/Rx Pre-drive Low Pass Drive Final RF Amp RF Amp...

  • Page 34: Level Diagram

    TK-3301 LEVEL DIAGRAM...

  • Page 35: Specifications

    TK-3301 SPECIFICATIONS General Frequency Range ...........446.0~446.1MHz Number of Channels ..........16 Channel Spacing ............12.5kHz PLL Channel Stepping ...........5/6.25kHz Operating Voltage ..........7.5 V DC±20% Battery Life 5-5-90 duty cycle with KNB-29N battery ...Battery Saver off: Approx. 16 hours Battery Saver on: Approx. 20 hours 5-5-90 duty cycle with KNB-45L battery ....Battery Saver off: Approx.
  • Page 36 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 37 TK-3301 TK-3301 PC BOARD PC BOARD TX-RX UNIT (X57-7772-70) TX-RX UNIT (X57-7772-70) Component side view (J79-0250-09) Component side view (J79-0250-09) J79-0250-09 Q108 L302 R135 C154 C325 L116 Q107 R302 C315 F301 Q109 R303 C313 C304 C311 C303 C307 C305 C136 PCTV SP–...
  • Page 38 TK-3301 TK-3301 PC BOARD PC BOARD TX-RX UNIT (X57-7772-50) TX-RX UNIT (X57-7772-50) Foil side view (J79-0250-09) Foil side view (J79-0250-09) J79-0250-09 SIDE1 SIDE2 R214 L202 C226 XF201 L115 CD201 R216 Q203 D301 R218 L214 R228 C177 L204 R223 C223 C220...
  • Page 39 TX-RX UNIT (X57-7772-70) C173 C175 C177 R:7.5V TX/RX T:4.09V R105 TX DRIVE AMP TX FINAL AMP T:3.75V T:2.63V T:7.34V ANT SW 0.5p 2.5p PLL_CLK RF SW C109 Q103 Q106 STRIP LINE T:3.18V R102 C115 R109 R141 L104 RD01MUS1-T113 C125 L107 R119 RD02MUS1BT112 R137...
  • Page 40 IC101: X57-7772-70 (TX-RX UNIT) PCTV BA2904FVM Switch APC_SW Fuse Q108:2SK1824-A 1.5A Tempera- Ripple TH_DET ture Filter Detector F301: 5C_C F53-0321-05 APC_SW Switch Switch Q6,Q10: TH101 Battery Tx/Rx KTC4075E(Y,GR) Protector Protector D101:UDZW5.1(B) Q107:RT1N441U Q109:RT1P441U Voltage Regulator 5T_C 5T 5R D301:GN1G IC303: Tx: 446MHz XC6209B502PR PLL_UL...

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