Kenwood TK-3302 Service Manual

Uhf fm transceiver

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Service manual (48 pages)

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UHF FM TRANSCEIVER

TK-3302

SERVICE MANUAL

E,E3,T versions

Whip antenna

(T90-1039-25): T

Button knob (PTT)

(K29-9425-03)

Button knob

(Side1/Side2)

(K29-9426-03)

Plastic cabinet assy

(A02-4040-03)

E and E3 types does not come with the antenna.

RoHS

This product complies with the

Knob (Selector)

(K29-9427-03)

Knob (Volume)

(K29-9309-13)

directive for the European market.

B51-8868-00 ( N ) 84

CONTENTS

GENERAL .....................................................2

SYSTEM SET-UP .........................................3

REALIGNMENT ...........................................3

DISASSEMBLY FOR REPAIR ......................5

CIRCUIT DESCRIPTION ..............................8

SEMICONDUCTOR DATA .........................12

TERMINAL FUNCTION .............................12

COMPONENTS DESCRIPTION .................13

PARTS LIST ...............................................14

EXPLODED VIEW ......................................21

PACKING ....................................................22

ADJUSTMENT ..........................................24

PC BOARD

TX-RX UNIT (X57-7582-XX) ..................30

SCHEMATIC DIAGRAM ............................34

BLOCK DIAGRAM .....................................38

LEVEL DIAGRAM ......................................40

SPECIFICATIONS ......................................41

This product uses Lead Free solder.

Table of Contents

Summary of Contents for Kenwood TK-3302

Page 1: Table Of Contents
UHF FM TRANSCEIVER TK-3302 SERVICE MANUAL E,E3,T versions © 2009-4 PRINTED IN JA PAN B51-8868-00 ( N ) 84 CONTENTS GENERAL .............2 SYSTEM SET-UP .........3 Knob (Selector) Whip antenna (K29-9427-03) (T90-1039-25): T REALIGNMENT ...........3 Knob (Volume) DISASSEMBLY FOR REPAIR ......5 (K29-9309-13) CIRCUIT DESCRIPTION ......8...
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: System Set-Up
TK-3302 SYSTEM SET-UP Merchandise received Frequency range (MHz) RF power Type TX/RX 440~470 4.0W TK-3302: E,T TK-3302: E3 Choose the type of transceiver TX/RX 400~430 4.0W A personal computer, programming interface (KPG-22/22A), Transceiver programming and FPU (programming software) are required for programming.
Page 4 TK-3302 REALIGNMENT KPG-22 or KPG-22A or Note: KPG-22A+KCT-53U • You must install the KCT-53U driver in the computer to Illustration is KPG-22 use the USB adapter (KCT-53U). • When using the USB adapter (KCT-53U) for the ﬁ rst time, plug the KCT-53U into a USB port on the computer with the computer power ON.
Page 5: Disassembly For Repair
TK-3302 DISASSEMBLY FOR REPAIR 1. Removing the Case Assembly from the Chassis 3. Removing the Battery Release Lever 1. Remove the volume knob q and channel knob w. from the Case Assembly 2. Remove the two screws e. 1. Press the upper part of the lever toward the inside of the 3.
Page 6 TK-3302 DISASSEMBLY FOR REPAIR 5. Assembling the Battery Release Lever 7. Mounting the Chassis to the Case Assembly 1. Place the lever w onto the stopper q. 1. Confirm that the waterproof packing attached to the 2. Place the thick spring e onto the lever.
Page 7 TK-3302 DISASSEMBLY FOR REPAIR 8. Attaching the Antenna Receptacle to the Chassis 10. Screw sequence for mounting the TX- Screw the antenna receptacle to the chassis in the order RX unit to the chassis shown in the drawing so that the antenna receptacle Attach the TX-RX unit to the chassis using the screws in comes to the center of the case hole.
Page 8: Circuit Description
TK-3302 CIRCUIT DESCRIPTION The resulting signal passes through a BPF (L209, L207 1. Frequency Conﬁ guration and L206) and goes to the mixer. These BPFs are adjusted The receiver utilizes double conversion. The first IF is by variable capacitors (D201, D202, D203, D204 and D205).
Page 9 TK-3302 CIRCUIT DESCRIPTION ■ Audio Ampliﬁ er Circuit 3. PLL Frequency Synthesizer The demodulated signal from IC201 goes to AF ampliﬁ er The PLL circuit generates the ﬁ rst local oscillator signal through IC308. for reception and the RF signal for transmission.
Page 10 TK-3302 CIRCUIT DESCRIPTION ■ APC Circuit 4. Transmitter System The APC circuit always monitors the current flowing ■ Microphone Ampliﬁ er through the drive ampliﬁ er and RF power ampliﬁ er (Q103 The signal from the microphone passes through the and Q106) and keeps a constant current.
Page 11 TK-3302 CIRCUIT DESCRIPTION ■ Frequency Shift Circuit R301 IC306 The MCU (IC306) operates at a clock of 14.746 MHz. This oscillator has a circuit that shifts the frequency by BEAT SHIFT SW (Q305, Q306). A beat sound may be able to be evaded from generation if “Beat Shift”...
Page 12: Semiconductor Data
TK-3302 SEMICONDUCTOR DATA MCU: R5F212CCKCMC (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 13: Components Description
TK-3302 COMPONENTS DESCRIPTION TX-RX unit (X57-7582-XX) Ref. No. Part Name Description Ref. No. Part Name Description PLL system IC Q302 Transistor DC switch/ Green color LED IC101 Q303 Transistor DC switch/ 5R IC201 FM system IC Q304 Transistor DC switch/ 5T...
Page 14: Parts List
TK-3302 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 15 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. TK-3302 (Y50-635X-XX) TX-RX UNIT (X57-7582-XX) Desti- Desti- Ref. No.
Page 16 TK-3302 PARTS LIST TX-RX UNIT (X57-7582-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation CC73HCH1H060B CHIP C 6.0PF C125 CC73HCH1H100B CHIP C 10PF CC73HCH1H090B CHIP C 9.0PF C125...
Page 17 TK-3302 PARTS LIST TX-RX UNIT (X57-7582-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C223 CK73HB1E103K CHIP C 0.010UF C307 CC73HCH1H101J CHIP C 100PF C224 CK73HB1A104K CHIP C 0.10UF...
Page 18 TK-3302 PARTS LIST TX-RX UNIT (X57-7582-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation C405 CC73HCH1H221J CHIP C 220PF L209 L41-8268-14 SMALL FIXED INDUCTOR (8.2NH) C408,409 CK73HB1H471K CHIP C...
Page 19 TK-3302 PARTS LIST TX-RX UNIT (X57-7582-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation RK73HB1J154J CHIP R 150K 1/16W R212 RK73HB1J224J CHIP R 220K 1/16W RK73HB1J101J CHIP R...
Page 20 TK-3302 PARTS LIST TX-RX UNIT (X57-7582-XX) Desti- Desti- Ref. No. Ad dress Parts No. Description Ref. No. Ad dress Parts No. Description parts nation parts nation R359 RK73HB1J473J CHIP R 1/16W IC304 XC6209B502MR MOS-IC R360 RK73HB1J562J CHIP R 5.6K 1/16W...
Page 21: Exploded View
TK-3302 EXPLODED VIEW Ex10 MIC301 TX-RX unit CF201 : N14-0848-05 : N14-0849-05 C M2.6 x 4 : N30-2604-48 D M2.6 x 6 : N30-2606-48 E M2 x 5 : N83-2005-48 Model name plate Parts with the exploded numbers larger than 700 are not supplied.
Page 22: Packing
TK-3302 PACKING (E,E3 TYPE) 7 Instruction manual (B62-2110-00) 704 Protection bag 702 Pamphlet 50 Belt hook (J29-0734-05) 48 Holder (SP/MIC) (J29-5521-03) 61 Screw set (N99-2046-05) 4 Cap (B09-0725-03) 707 Packing fixture 708 Item carton case Parts with the exploded numbers larger than 700 are not supplied.
Page 23 TK-3302 PACKING (T TYPE) 7 Instruction manual (B62-2110-00) 71 Charger (KSC-35) (W08-0988-05) 704 Protection bag 72 AC adapter (W08-0993-05) 50 Belt hook (J29-0734-05) 61 Screw set (N99-2046-05) 4 Cap 68 Whip antenna (B09-0725-03) (T90-1039-25) 709 Packing fixture 710 Item carton case...
Page 24: Adjustment
TK-3302 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 25 Center 455.050MHz 455.100MHz cies you want in actual operation. 440.050MHz 440.100MHz ■ Frequency (MHz) High 469.950MHz 469.900MHz • TK-3302 E,T Low’ 447.550MHz 447.600MHz High’ 462.550MHz 462.600MHz Channel No. RX Frequency TX Frequency 455.050 455.100...
Page 26 TK-3302 ADJUSTMENT Mkr1 455.1 MHz Mkr1 415.099 MHz Ref –35 dBm Atten 15 dB –41.58 dBm Ref –20 dBm Atten 10 dB –39.07 dBm Peak Peak W1 S2 W1 S2 S3 FC S3 FC Center 455.1 MHz Span 200 MHz Center 415.1 MHz...
Page 27 TK-3302 ADJUSTMENT Common Section (Note: The E3 market do not perform “Wide 4k” adjustment.) 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...
Page 28 TK-3302 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 6. QT Fine 1) TEST CH: Center, Low, High Power 0.75kHz ±40Hz Deviation (3 points) meter [Wide 5k] Deviation meter ﬁ lter Deviation...
Page 29 TK-3302 ADJUSTMENT Measurement Adjustment Item Condition Speciﬁ cations / Remarks Test- Unit Terminal Unit Parts Method equipment 2. Sensitivity 1) TEST CH: Low, Center, High Check 20dB SINAD or more [Wide 5k] (3 points) SSG otuput SP/MIC : –110dBm (0.7µV)
Page 30: Pc Board
TK-3302 PC BOARD TX-RX UNIT (X57-7582-XX) -71: E,T -72: E3 Component side view (J79-0187-19) 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...
Page 31 TK-3302 PC BOARD TX-RX UNIT (X57-7582-XX) -71: E,T -72: E3 Component side view (J79-0187-19) J79-0187-19 Q108 L302 R135 C154 C325 Q107 R302 C315 Q109 R303 C313 C304 C311 C307 C305 C136 PCTV SP– R118 R120 IC301 CN301 R123 – R126...
Page 32 TK-3302 PC BOARD TX-RX UNIT (X57-7582-XX) -71: E,T -72: E3 Foil side view (J79-0187-19) J79-0187-19 SIDE1 L115 C239 L214 C177 CP202 R223 L113 C176 C170 C252 C248 R226 C256 L112 R227 C266 C247 C245 C259 C172 R222 R140 C243 C254...
Page 33 TK-3302 PC BOARD TX-RX UNIT (X57-7582-XX) -71: E,T -72: E3 Foil side view (J79-0187-19) 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...
Page 34: Schematic Diagram
TK-3302 SCHEMATIC DIAGRAM X57-7582-XX 0.1u 0.01u L92-0138-05 180k 680k 0.33u 470p 470p L92-0470-05 150k 270k TX-RX UNIT (X57-7582-XX) PLL_CLK PLL_DAT 3.25V RK75HA1J101J PLL_STB PLL SYSTEM IC 2SC5636 MB15A02PFV2E1 RF AMP RECTIFICATION KTC4075E(Y,GR) 5.0V 470p 4.93V TCXO 4.35V F301 L77-3042-05 F53-0324-05 4.89V...
Page 35 TK-3302 SCHEMATIC DIAGRAM X57-7582-XX 470p 1SV325F 470k 4.7k 100p 3.5p 0.5p 1.5p 3.5p 470p HVC376B 390k 3.9k TX-RX UNIT (X57-7582-XX) R:3.25V D2,3,6 4.82V RF AMP FREQUENCY RF AMP 270n VCO (RX) CONTROL 4.28V 2SC5636 /RX VCO 0.76V 2SC5636 R:3.70V T:3.77V 180n 0.5p...
Page 36 TK-3302 SCHEMATIC DIAGRAM X57-7582-XX C103 C104 C109 C111 C115 C117 C118 C123 C125 C126 C127 C128 C130 C147 C206 C207 C214 L101 L102 L103 L104 L105 L107 R105 R107 R108 R109 R110 R116 R124 R150 R210 R212 R214 2.2u 680p 680p 2.7n...
Page 37 TK-3302 SCHEMATIC DIAGRAM X57-7582-XX C142 C145 C146 C155 C161 C162 C164 C166 C172 C174 C176 C177 C178 C231 C235 C236 C237 C240 C242 C244 C247 C248 C249 C257 C261 C263 C264 C265 C266 C411 2.5p 470p 4.5p 4.5p 3.5p 4.5p 470p 0.3p...
Page 38: Block Diagram
TK-3302 BLOCK DIAGRAM Q7:RT1P430U X57-7582-XX (TX-RX UNIT) RX_SW Switch Fuse 2.5A Oscillator: F301: Rx VCO 5C_C F53-0324-05 Battery Q4:2SK1875-F(V) Protector D2:HVC376B Voltage D3,D6:1SV325F Regulator 5T_C D301:GN1G Q8:RT1P430U IC303: XC6209B502PR PLL_UL Rectifier Loop Switch TX_SW Switch Filter Rectifier Q1:KTC4075E(Y,GR) Q304:DTB723YE Power Switch/...
Page 39 TK-3302 BLOCK DIAGRAM IC101: PCTV BA2904FVM Switch APC_SW Q108:2SK1824-A Tempera- Lipple 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 T1P430U Buffer Tx/Rx Pre-drive Low Pass Drive Final TX_SW RF Amp RF Amp...
Page 40: Level Diagram
TK-3302 LEVEL DIAGRAM...
Page 41: Specifications
TK-3302 SPECIFICATIONS General Frequency Range ...........440~470MHz (E,T) 400~430MHz (E3) Number of Channels ..........Max. 16 Channel Spacing ............25kHz (Wide 5k) / 20kHz (Wide 4k) / 12.5kHz (Narrow) PLL Channel Stepping ...........5kHz, 6.25kHz Operating Voltage ..........7.5 V DC±20% Battery Life ............More than 18 hours at 4 watts (5-5-90 duty cycle with KNB-45L battery) Operating Temperature Range ......–30°C to +60°C (–10°C to +60°C when KNB-45L in use)
Page 42 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 43 TK-3302 TK-3302 PC BOARD PC BOARD TX-RX UNIT (X57-7582-XX) -71: E,T -72: E3 TX-RX UNIT (X57-7582-XX) -71: E,T -72: E3 Component side view (J79-0187-19) Component side view (J79-0187-19) J79-0187-19 Q108 L302 R135 C154 C325 Q107 R302 C315 F301 Q109 R303...
Page 44 TK-3302 TK-3302 PC BOARD PC BOARD TX-RX UNIT (X57-7582-XX) -71: E,T -72: E3 TX-RX UNIT (X57-7582-XX) -71: E,T -72: E3 Foil side view (J79-0187-19) Foil side view (J79-0187-19) J79-0187-19 SIDE1 SIDE2 R214 L202 C226 L115 XF201 CD201 R216 Q203 D301...
Page 45 X57-7582-XX X57-7582-XX X57-7582-XX C103 C104 C109 C111 C115 C117 C118 C123 C125 C126 C127 C128 C130 C147 C206 C207 C214 L101 L102 L103 L104 L105 L107 R105 R107 R108 R109 R110 R116 R124 R150 R210 R212 R214 X57-7582-XX C142 C145 C146 C155 C161...
Page 46 Q7:RT1P430U IC101: X57-7582-XX (TX-RX UNIT) PCTV BA2904FVM RX_SW Switch Switch APC_SW Fuse Q108:2SK1824-A 2.5A Tempera- Oscillator: w Lipple TH_DET ture Filter Detector F301: Rx VCO 5C_C F53-0324-05 APC_SW Switch Switch Q6,Q10: TH101 Battery Tx/Rx: q KTC4075E(Y,GR) Q4:2SK1875-F(V) Protector Protector D101:UDZW5.1(B) Voltage D2:HVC376B Q107:RT1N441U...

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Kenwood TK-3302 Service Manual

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