Kenwood TK-2202 Service Manual
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Kenwood TK-2202 Service Manual

Vhf fm transceiver
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See also: Instruction Manual
VHF FM TRANSCEIVER
TK-2202/2206
SERVICE MANUAL
Knob (PTT)
(K29-9308-03)
Photo is TK-2202.
Antenna
(T90-1036-05): TK-2202(K,M)
(KRA-26: Option) TK-2206 (M)
Knob (CH-SELECTOR)
Knob (VOLUME)
Cabinet assy
(A02-3852-23)(8CH):
TK-2202(K,M)
(A02-3851-23)(16CH):
TK-2206(M)
TK-2206 :
Does not come with antenna.
Antenna is available as an option.
©
2004-2 PRINTED IN JAPAN
B51-8677-00 (S) 1246
CONTENTS
GENERAL ............................................................. 2
SYSTEM SET-UP ................................................. 2
REALIGNMENT .................................................... 3
DISASSEMBLY FOR REPAIR .............................. 5
CIRCUIT DESCRIPTION ....................................... 8
TERMINAL FUNCTION ...................................... 12
SEMICONDUCTOR DATA ................................. 12
COMPONENTS DESCRIPTION ......................... 13
PARTS LIST ........................................................ 14
EXPLODED VIEW ............................................... 20
PACKING ............................................................ 21
ADJUSTMENT ................................................... 23
TX-RX UNIT (X57-6870-20) .......................... 28
SCHEMATIC DIAGRAM ..................................... 32
BLOCK DIAGRAM .............................................. 36
LEVEL DIAGRAM ............................................... 38
SPECIFICATIONS ............................ BACK COVER

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Summary of Contents for Kenwood TK-2202

  • Page 1: Table Of Contents

    BLOCK DIAGRAM ..........36 TK-2202(K,M) LEVEL DIAGRAM ..........38 (A02-3851-23)(16CH): TK-2206(M) KSC-31 / KNB-29N / KNB-30A / KBH-10 ..39 SPECIFICATIONS ......BACK COVER Knob (PTT) (K29-9308-03) TK-2206 : Does not come with antenna. Antenna is available as an option. Photo is TK-2202.

  • Page 2: General

    Unit Model TX-RX Unit Frequency range Remarks & destination TK-2202 K,M IF1 : 38.85MHz X57-6870-20 136~174MHz TK-2206 LOC : 38.4MHz SYSTEM SET-UP Merchandise received...

  • Page 3: Realignment

    Used for communication between the machine. radio and PC (IBM compatible). The data can be input to or read from TK-2202/2206 and Data programming Used to read and write frequency data edited on the screen. The programmed or edited data can be mode and other features to and from the radio.
  • Page 4 TK-2202/2206 REALIGNMENT Clone Frequency Table 4. To switch the clone master to Clone mode, press and hold the [PTT] and [side2] keys while turning the transceiver Operating Frequency power ON. Clone (MHz) 136~174 Frequency Table 5. Wait for 2 seconds. The LED will light orange and the 136.000...

  • Page 5: Disassembly For Repair

    TK-2202/2206 DISASSEMBLY FOR REPAIR Removing the battery release lever from the case Removing the case assembly from the chassis. assembly. 1. Remove the volume knob and channel knob 2. Remove the two screws 1. Press the upper part of the lever toward the inside of the 3.
  • Page 6 TK-2202/2206 DISASSEMBLY FOR REPAIR 2. Mounting the chassis to the case assembly. Assembling the battery release lever 1. Place the lever onto the stopper 1. Confirm that the waterproof packing attached to the 2. Place the thick spring onto the lever.
  • Page 7 TK-2202/2206 DISASSEMBLY FOR REPAIR 3. Attaching the antenna receptacle to the 4. The nuts of the volume knob and channel chassis. knob Screw the antenna receptacle to the chassis in the order Note that the shapes, colors and heights of nuts of the...

  • Page 8: Circuit Description

    Fig. 1 shows the frequencies. oscillator, limiting amplifier, quadrature detector and RSSI (Received Signal Strength Indicator). The second mixer TX/RX: 136 ~ 174MHz (TK-2202(K,M) TK-2206(M)) 450kHz mixes the first IF signal with the 38.4MHz of the second local oscillator output (TCXO X1) and produces the second...
  • Page 9 TK-2202/2206 CIRCUIT DESCRIPTION 6) Squelch 2) VCO Part of the AF signal from the IC enters the FM IC (IC201) The operating frequency is generated by Q4 in transmit again, and the noise component is amplified and rectified mode and Q3 in receive mode. The oscillator frequency is...

  • Page 10: Power Supply

    TK-2202/2206 CIRCUIT DESCRIPTION IC301 The QT,DQT data of the QTVCO Line is output from pin 24 of the CPU. The signal passes through a low pass CR filter, mixes with the audio signal, and goes to the VCO modulation AQUA input.
  • Page 11 TK-2202/2206 CIRCUIT DESCRIPTION 7. Control System Keys and channel selector circuit. XOUT The signal from the keys and channel selector are directly IC405 input to the microprocessor, as shown in fig. 11. Q407 Q408 Channel selector Hi: OFF BSHIFT LOW: ON Fig.

  • Page 12: Terminal Function

    TK-2202/2206 TERMINAL FUNCTION / SEMICONDUCTOR DATA TERMINAL FUNCTION CN401 Name Function Name Function B (Battery Voltage) Encoder pulse input Switched B Audio input Encoder pulse input Audio output Encoder pulse input Encoder pulse input Encoder pulse input SEMICONDUCTOR DATA Microprocessor : 30622MAA-B89GP (TX-RX UNIT : IC405)

  • Page 13: Components Description

    TK-2202/2206 COMPONENTS DESCRIPTION TX-RX UNIT (X57-6870-20) Ref. No. Use/Function Operation/Condition Ref. No. Use/Function Operation/Condition PLL system Diode Ripple Filter VCO 1/2 Divider Variable Frequency control / TX VCO IC101 Comparator (APC) capacitance diode IC201 FM IF system Variable Frequency control / RX VCO...

  • Page 14: (K29-9318-03) Parts List

    HARDWARE FIXTURE(VOL/CH) ∗ C92-0001-05 CHIP C 0.1UF 35WV ∗ J21-8478-04 HARDWARE FIXTURE(SP/MIC) C33 ,34 CK73HB1H102K CHIP C 1000PF K 2C,2F ∗ J29-0713-05 BELT CLIP ACCESSORY CC73HCH1H270J CHIP C 27PF AK : TK-2202 (K) AM : TK-2202 (M) BM : TK-2206 (M)
  • Page 15 1000PF K C245 CK73HB1H471K CHIP C 470PF C133 CK73GB1H103K CHIP C 0.010UF K C247 CC73GCH1H040B CHIP C 4.0PF C134 CK73GB1C104K CHIP C 0.10UF K C248 CC73GCH1H270J CHIP C 27PF AK : TK-2202 (K) AM : TK-2202 (M) BM : TK-2206 (M)
  • Page 16 TANTAL 100UF 6.3WV L107 L40-2775-54 SMALL FIXED INDUCTOR(27NH) C346 CK73GB1H102K CHIP C 1000PF K L108 L92-0149-05 FERRITE CHIP C348 CK73HB1H471K CHIP C 470PF L109 L40-2295-85 SMALL FIXED INDUCTOR(2.2UH) AK : TK-2202 (K) AM : TK-2202 (M) BM : TK-2206 (M)
  • Page 17 RK73HB1J823J CHIP R J 1/16W R227 R92-1252-05 CHIP R 0 OHM J 1/16W R35 ,36 RK73HB1J274J CHIP R 270K J 1/16W R228,229 RK73HB1J105J CHIP R 1.0M J 1/16W AK : TK-2202 (K) AM : TK-2202 (M) BM : TK-2206 (M)
  • Page 18 0 OHM Q103 2SK2596 R365 RK73HB1J473J CHIP R J 1/16W R403 RK73GB1J101J CHIP R J 1/16W Q104 DTC114EE DIGITAL TRANSISTOR R404 RK73HH1J474D CHIP R 470K D 1/16W Q105 2SK879(Y) AK : TK-2202 (K) AM : TK-2202 (M) BM : TK-2206 (M)
  • Page 19 Q405 DTA123JE DIGITAL TRANSISTOR Q407,408 2SK1830 TH101 157-104-65001 THERMISTOR TH203 157-104-65001 THERMISTOR ADDITIONAL PCB C901,902 CK73GB1A105K CHIP C 1.0UF R901,902 RK73GB1J472J CHIP R 4.7K J 1/16W Q901 2SK1824 AK : TK-2202 (K) AM : TK-2202 (M) BM : TK-2206 (M)

  • Page 20: Exploded View

    TK-2202/2206 EXPLODED VIEW MIC301 TX-RX Unit CF201 A :N14-0808-04 B :N14-0812-04 C :N30-2604-46 D :N30-2606-46 E :N83-2005-46 Parts with the exploded numbers larger than 700 are not supplied.

  • Page 21: Packing

    TK-2202/2206 PACKING (TK-2202) 64.HELICAL ANTENNA 66.AC ADAPTER 9. INSTRUCTION MANUAL (T90-1036-05) (W08-0970-05):K(AC120V) (B62-1762-00) (W08-0971-05):M(AC230V) 45.PROTECTION BAG (H25-0085-04) 48.HOLDER(SP/MIC) 60.SCREW SET (J19-5472-03) (N99-2043-05) 44.CARTON BOARD 6. CAP(SP/MIC) (H13-2109-03) (B09-0680-03) 702. KNB-29N (Ni-MH BATTERY PACK) 43.PACKING FIXTURE (H12-3158-05) 65.CHARGER (W08-0969-05) 52.BELT CLIP (J29-0713-05) 46.ITEM CARTON CASE...
  • Page 22 TK-2202/2206 PACKING (TK-2206) 10.INSTRUCTION MANUAL (B62-1763-00) 45.PROTECTION BAG (H25-0085-04) 48.HOLDER(SP/MIC) (J19-5472-03) 60.SCREW SET (N99-2043-05) 6. CAP(SP/MIC) (B09-0680-03) 43.PACKING FIXTURE (H12-3158-05) 52.BELT CLIP (J29-0713-05) 47.ITEM CARTON CASE (H52-2034-02) Parts with the exploded numbers larger than 700 are not supplied.

  • Page 23: (K29-9309-03) Adjustment

    2. Repair Jig (Chassis) power supply and the battery jig, especially while the Use jig (part No.: A10-4086-03) for repairing the TK-2202/ transceiver transmits. 2206. Place the TX-RX unit on the jig and fit it with screws.
  • Page 24 TK-2202/2206 ADJUSTMENT Adjustment points TX-RX unit (X57-687) Frequency and signalling Component side view The set has been adjusted for the frequencies shown in the following table. When required. re-adjust them following the adjustment procedure to obtain the frequencies you want...
  • Page 25 TK-2202/2206 ADJUSTMENT Common Section Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method 1.Setting 1) BATT terminal votage:7.5V 2) SSG standard modulation [Wide] MOD:1kHz,DEV:3kHz [Narrow] MOD:1kHz,DEV:1.5kHz 2.VCO lock 1) CH:High Power meter 4.0V ±0.1V voltage 2) CH:Low Check 0.6V or more...
  • Page 26 TK-2202/2206 ADJUSTMENT Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method 6.VOX 10 TEST CH:Center Power meter Programming Writing AG:1kHz/3.0mV Deviation meter SP/MIC connector Software:KPG-87D 7.DQT TEST CH: Center Oscilloscope Programming Make the Balance Adjust Software:KPG-87D demodulation [Wide]...
  • Page 27 TK-2202/2206 ADJUSTMENT Receiver Section Measurement Adjustment Specifications/ Item Condition Remark Test equipment Terminal Parts Method 1.BPF Wave (1)Center frequency Spectrum Programming Adjust the Mkrl 155.0 MHz Ref -23 dBm Atten 5 dB -33.5 dBm Peak Adjust Spectrum analyzer setting analyzer...

  • Page 28: Pc Board

    TK-2202/2206 PC BOARD TX-RX UNIT (X57-6870-20) Component side view (J72-0912-09) L404 R203 CP404 TH203 C430 F401 R213 C405 C401 R211 R416 C402 C214 RSSI BATT+ MIC301 – IC405 PCTV MOD IN Black ADDITIONAL PCB White R422 R419 Brown MOD OUT...
  • Page 29 TK-2202/2206 PC BOARD TX-RX UNIT (X57-6870-20) Component side view (J72-0912-09) J72-0912-09 R438 R134 R409 R436 R410 R412 IC101 L111 R403 CN13 Q108 R411 C403 R142 R130 C146 R140 R139 D102 R141 R132 R127 R138 Q107 C140 R126 C126 MIC301 R121...
  • Page 30 TK-2202/2206 PC BOARD TX-RX UNIT (X57-6870-20) Foil side view (J72-0912-09) J72-0912-09 S403 S402 S401 R237 D106 R239 D105 C263 Q205 C149 L116 C153 R234 C264 C266 C241 R230 L211 R291 R227 C245 C160 C156 R243 L210 R224 C348 C111 R223...

  • Page 31: Pc Board Tx-Rx Unit (X57-6870-20)

    TK-2202/2206 PC BOARD TX-RX UNIT (X57-6870-20) Foil side view (J72-0912-09) S402 CN201 CD201 XF201 D402 L201 C228 C440 C219 C220 R224 C348 R210 C207 R418 R209 CF201 C239 C208 C210 C235 C370 C230 D202 C213 R447 R217 R420 C221 C427...
  • Page 32 TK-2202/2206 TK-2202/2206 PC BOARD PC BOARD TX-RX UNIT (X57-6870-20) Component side view (J72-0912-09) TX-RX UNIT (X57-6870-20) Component side view (J72-0912-09) J72-0912-09 R438 L404 CP404 R203 TH203 R134 R409 C430 F401 R213 R436 R410 R412 C405 IC101 R403 L111 CN13 Q108...
  • Page 33 TK-2202/2206 TK-2202/2206 PC BOARD PC BOARD TX-RX UNIT (X57-6870-20) Foil side view (J72-0912-09) TX-RX UNIT (X57-6870-20) Foil side view (J72-0912-09) J72-0912-09 S403 S402 S401 R237 D106 CN201 R239 D105 CD201 C263 Q205 XF201 C149 L116 C153 R234 C264 D402 C266...

  • Page 34: Tx-Rx Unit (X57-6870-20)

    TK-2202/2206 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6870-20) 100k PLL SYSTEM 2.73V MB15A02 RIPPLE FILTER 4.84V 470p MA2S111 470p 4.76V 0.01u 2SC5108(Y) PLL IC F_IN AMP R12-7491-05 4.83V L77-1931-05 F401 L401 4.72V BATT 0.7V 12.8MHz BATT oUTPUT 4.7u 330k 1000p 2.2k TXCO...
  • Page 35 TK-2202/2206 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6870-20) 4.74V T:3.42V D4,7 UPB1509GV 220n FREQUENCY RF BUFFER AMP CONTROL /TX VCO VCO OSCILLATION (TX) VCC1 VCC2 0.72V 2SC5108(Y) VCO/TX 1000p 180n 0.5p 1SV325 180p 1000p 2SK508NV(K52) 3.74V VCO 1/2 DIVIDER DC SW/TX VCO...
  • Page 36 TK-2202/2206 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6870-20) TX DRIVE AMP TX FINAL AMP R:7.68V T:1.88V T:7.30V T:4.9V D101,202 C120 L107 C110 L104 Q103 Q106 R108 C108 R112 R120 T:1.11V TX/RX 2SK2596 2SK2595 RF SW 1.5k 1000p 1000p 4.6V RF AMP D101...
  • Page 37 TK-2202/2206 SCHEMATIC DIAGRAM Note : The components marked with a dot ( ) are parts of layer1. TX-RX UNIT (X57-6870-20) ANT SW D103 L117 L118 L119 HVC131 C151 L113 L114 C144 D104 L115 C154 C156 C159 CN13 1000p HVC131 ANT SW...
  • Page 38 TK-2202/2206 SCHEMATIC DIAGRAM TX-RX UNIT (X57-6870-20) TX DRIVE AMP TX FINAL AMP ANT SW D103 L117 L118 L119 4.74V T:1.88V R:7.68V T:7.30V T:3.42V D101,202 T:4.9V HVC131 L104 C120 L107 C151 T:1.11V R108 C108 R112 C110 Q103 R120 Q106 L113 L114...

  • Page 39: Block Diagram

    TK-2202/2206 BLOCK DIAGRAM X57-687 IC404 BD4845FVE IC403 BD4845FVE IC1 MB15A02 PLL_DAT PLL_CLK RESET RESET PLL_STB D401 RB521S-30 IC401 XC6204B502MR Q4 2SK508NV(K52) D4,D7 1SV325 D10 1SV278 PROTECT Q405 DTA123JE Loop Filter DTA143TE 12.8MHz 5C_C L77-1931-05 Q403 CPH3317 QTTCXO Q3 2SK508NV(K52) D5,D9 1SV325...
  • Page 40 TK-2202/2206 BLOCK DIAGRAM TX/RX:136.00~174.00MHz 2SC5108(Y) D101,D202 Q102 Q103 Q106 D103,D104,D105,D106 2SC5108(Y) HSC277 2SC4926YD 2SK2596 2SK2595 HVC131 2SC5108(Y) UPB1509GV BUFF DIVIDER Q104 DTC114EE IC101 Q105 Q109 2SK879(Y) TA75W01FU DTA144EE CURRENT Q108 2SK1824 DCSW APCSW APCSW Q107 DTC114EE PCTV D205,D206 Q205 Q203...

  • Page 41: Level Diagram

    TK-2202/2206 LEVEL DIAGRAM...

  • Page 42: Ksc-31 / Knb-29N / Knb-30A / Kbh-10

    TK-2202/2206 KSC-31 / KNB-29N / KNB-30A / KBH-10 KSC-31 (RAPID CHARGER) KNB-29N (Ni-MH BATTERY PACK) External View External View Specifications Voltage ....7.2V (1.2V x 6) Battery capacity ... 1500mAh Specifications Schematic Diagram Charging current ....850mA ±5% Charging time ..... KNB-29N : Approx.180 minutes DISCHARGING TERMINALS KNB-30A : Approx.120 minutes...

  • Page 43: Specifications

    SPECIFICATIONS General Frequency Range ............. 136~174MHz (TK-2202(K, M) TK-2206(M) ) Number of channels ............Max. 8 (TK-2202) Max. 16 (TK-2206) Number of groups ............Max. 16 Channel Spacing ............... 25kHz, 30kHz (Wide) 12.5kHz, 15kHz (Narrow) PLL Channel Stepping ............2.5kHz, 5kHz, 6.25kHz, 7.5kHz Operating Voltage ............

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Tk-2206

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