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UHF FM TRANSCEIVER
TK-3202/3206
SERVICE MANUAL
© 2004-2 PRINTED IN JAPAN
B51-8678-00 (S) 1246
CONTENTS
GENERAL ............................................................. 2
Antenna
SYSTEM SET-UP ................................................. 2
(T90-1039-05): TK-3202(K,M)
REALIGNMENT .................................................... 3
(T90-1040-05): TK-3202(K2,M2)
DISASSEMBLY FOR REPAIR .............................. 5
(KRA-27: Option): TK-3206(M,M3)
CIRCUIT DESCRIPTION ..................
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TK-3202/3206 GENERAL / SYSTEM SET-UP INTRODUCTION PERSONAL SAFETY SCOPE OF THIS MANUAL The following precautions are recommended for personal This manual is intended for use by experienced technicians safety: ● familiar with similar types of commercial grade DO NOT transmit until all RF connectors are verified secure communications equipment. It contains all required service and any open connectors are properly terminated. ● information for the equipment and is current as of the SHUT OFF and DO
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TK-3202/3206 REALIGNMENT 3-3. KPG-22 description REALIGNMENT (PC programming interface cable: Option) The KPG-22 is required to interface the TK-3202/3206 with 1. Modes the computer. It has a circuit in its D-subconnector (25-pin) User mode case that converts the RS-232C logic level to the TTL level. The KPG-22 connects the SP/MIC connector of the TK-3202/ PC mode Data programming mode 3206 to the computer’s RS-232C serial port. Clone mode PC test mode PC tuning mode 3-4. Programming software de
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TK-3202/3206 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 MODEL TK-3202 TK-3206 power ON. Type K,M K2,M2 M M3 Operating 5. Wait for 2 seconds. The LED will light orange and the Clone Frequency transceiver will announce "Clone". 450~490 470~512 450~490 400~430 Frequency (MHz) 6. Select the same channel table number as the clone slave/s. Table 7. Press [PTT] on the clone master to begin data t
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TK-3202/3206 DISASSEMBLY FOR REPAIR ■ Removing the case assembly from the chassis. ■ Removing the battery release lever from the case 1. Remove the volume knob and channel knob . assembly. z x 2. Remove the two screws . 1. Press the upper part of the lever toward the inside of the c 3. Lift and remove the chassis from the case assembly . case assembly. One side of the shaft will be removed . v z (Use a flat-blade screwdriver to easily lift the chassis.) 2. Lift and remove the battery release lev
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TK-3202/3206 DISASSEMBLY FOR REPAIR ■ Assembling the battery release lever 2. Mounting the chassis to the case assembly. 1. Place the lever onto the stopper . 1. Confirm that the waterproof packing attached to the x z 2. Place the thick spring onto the lever. circumference of the chassis is securely inserted in the c 3. Hook the right and left ends of the thin spring onto the groove of the chassis . v z tabs of the stopper, then place the thin spring onto the 2. Twist the speaker wires twice,
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TK-3202/3206 DISASSEMBLY FOR REPAIR 3. Attaching the antenna receptacle to the 5. Screw sequence for mounting the TX-RX unit chassis. to the chassis. Screw the antenna receptacle to the chassis in the order Attach the TX-RX unit to the chassis using the screws in shown in the drawing so that the antenna receptacle comes the order shown in the drawing below. to the center of the case hole. 7 _ 8 _ 5 _ 6 _ 9 _ 1 4 _ _ Tighten this screw first. 2 3 _ _ TX-RX UNIT Component side view Tighten this sc
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TK-3202/3206 CIRCUIT DESCRIPTION 3) IF Amplifier Circuit 1. Frequency Configuration The first IF signal is passed through a four-pole monolithic The receiver utilizes double conversion. The first IF is 38.85 crystal filter (XF201) to remove the adjacent channel signal. MHz and the second IF is 450 kHz. The first local oscillator The filtered first IF signal is amplified by the first IF amplifier signal is supplied from the PLL circuit. (Q203) and then applied to the lF system IC (IC201). The IF
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TK-3202/3206 CIRCUIT DESCRIPTION phase with the 5 or 6.25kHz reference signal from the phase 6) Squelch comparator in IC1. The output signal from the phase Part of the AF signal from the IC enters the FM IC (IC201) again, and the noise component is amplified and rectified comparator is filtered through a low-pass filter and passed to the VCO to control the oscillator frequency.(See Fig. 5) by a filter and an amplifier to produce a DC voltage corresponding to the noise level. The DC signal from t
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TK-3202/3206 CIRCUIT DESCRIPTION and Pre-Drive amplifier to make both voltages the same. 4. Transmitter System The change of power high/low is carried out by the change 1) Microphone Amplifier of the reference voltage. The signal from the microphone passes through IC301. When encoding DTMF, it is turned OFF for muting the 4) Encode Signalling microphone input signal by IC301. (1) QT/DQT The signal passes through the Audio processor (IC301) for QT,DQT data of the QTTCXO Line is output from pin 28
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R406 TK-3202/3206 CIRCUIT DESCRIPTION A beat sound may be able to be evaded from generation if IC405 R404 SB “Beat Shift” is set to ON when it is generated in the internal 88 spurious transmission modulated sound of a transceiver. CPU X2 XOUT IC405 Q407,Q408 Fig. 10 Low battery warning Hi: OFF BSHIFT LOW: ON 7. Control System Fig. 8 Frequency shift circuit Keys and channel selector circuit. 2) Memory Circuit The signal from keys and channel selector input to Memory circuit consists of the CP
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TK-3202/3206 TERMINAL FUNCTION / SEMICONDUCTOR DATA TERMINAL FUNCTION ■ CN401 Pin Pin Name I/O Function Name I/O Function No. No. 1B IB (Battery Voltage) 7 EN2 I Encoder pulse input 2SBO Switched B 8 GND - GND 3 SP1 I Audio input 9 EN3 I Encoder pulse input 4 SP2 O Audio output 10 EN4 I Encoder pulse input 5 GND - GND 11 EN5 I Encoder pulse input 6 EN1 I Encoder pulse input SEMICONDUCTOR DATA Microprocessor : 30622MAA-B89GP (TX-RX UNIT : IC405) ■ Pin function Pin Pin Port Name I/O Function Port
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TK-3202/3206 COMPONENTS DESCRIPTION TX-RX UNIT (X57-6890-XX) Ref. No. Use/Function Operation/Condition Ref. No. Use/Function Operation/Condition IC1 IC PLL system Variable D4 Frequency control / TX VCO IC101 IC Comparator (APC) capacitance diode IC201 IC FM IF system Variable D5 Frequency control / RX VCO IC301 IC Audio processor capacitance diode IC302 IC AF AMP Variable D6 Frequency control / TX VCO IC401 IC Voltage regulator/ 5V capacitance diode IC402 IC Voltage regulator/ 5V Variable D7 Fre
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TK-3202/3206 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. Y: AAFES (Europe) X: Australia M: Other Areas Teile ohne Parts No. werden nicht geliefert. TK-3202/3206 (Y50-5900-XX) TX-RX UNIT (X57-6890-XX) New New Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Des
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TK-3202/3206 PARTS LIST TX-RX UNIT (X57-6890-XX) New New Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts C21 C92-0713-05 CHIP-TAN 10UF 6.3WV C67 CC73HCH1H040B CHIP C 4.0PF B BM3 C22 C92-0502-05 CHIP-TAN 0.33UF 35WV C67 CC73HCH1H050B CHIP C 5.0PF B AK,AK2 C24 CK73HB1H102K CHIP C 1000PF K C67 CC73HCH1H050B CHIP C 5.0PF B AM,AM2 C25 CC73HCH1H020B CHIP C 2.0PF B C67 CC73HCH1H050B CHIP C 5.0PF B BM C26 CC73HCH1H300J CHIP C 30PF J C68 -
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TK-3202/3206 PARTS LIST TX-RX UNIT (X57-6890-XX) New New Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts C146 CK73GB1H102K CHIP C 1000PF K C231 CK73GB1H103K CHIP C 0.010UF K C148 CK73GB1H102K CHIP C 1000PF K C232 CK73HB1C103K CHIP C 0.010UF K C149 CC73GCH1H070B CHIP C 7.0PF B AK,AM,BM C233 CC73GCH1H060B CHIP C 6.0PF B C149 CC73GCH1H070B CHIP C 7.0PF B BM3 C234 CK73HB1H102K CHIP C 1000PF K C151 CC73GCH1H070B CHIP C 7.0PF B AK2,AM
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TK-3202/3206 PARTS LIST TX-RX UNIT (X57-6890-XX) New New Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts C272 CC73GCH1H020B CHIP C 2.0PF B C401 CC73GCH1H471J CHIP C 470PF J C273 CC73GCH1H180J CHIP C 18PF J AK2,AM2 C402 CK73HB1H102K CHIP C 1000PF K C273 CC73GCH1H220J CHIP C 22PF J AK,AM,BM C403 CK73GB1C104K CHIP C 0.10UF K C273 CC73GCH1H220J CHIP C 22PF J BM3 C405 CC73GCH1H101J CHIP C 100PF J C274 CC73GCH1H010B CHIP C 1.0PF B AK,AM
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TK-3202/3206 PARTS LIST TX-RX UNIT (X57-6890-XX) New New Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts L105 L40-1575-54 SMALL FIXED INDUCTOR(15NH) AK,AM,BM R13 R92-1252-05 CHIP R 0 OHM J 1/16W L105 L40-1575-54 SMALL FIXED INDUCTOR(15NH) BM3 R14 RK73HB1J334J CHIP R 330K J 1/16W L105 L40-2275-54 SMALL FIXED INDUCTOR(22NH) AK2,AM2 R15 RK73GB1J221J CHIP R 220 J 1/16W L106 L92-0149-05 FERRITE CHIP R16 RK73GB1J561J CHIP R 560 J 1/
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TK-3202/3206 PARTS LIST TX-RX UNIT (X57-6890-XX) New New Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts R191,192 RK73GB1J271J CHIP R 270 J 1/16W R328 RK73GB1J103J CHIP R 10K J 1/16W R193 RK73GB1J473J CHIP R 47K J 1/16W BM3 R329 RK73GB1J823J CHIP R 82K J 1/16W R193,194 RK73GB1J473J CHIP R 47K J 1/16W AK,AK2 R330 RK73HB1J332J CHIP R 3.3K J 1/16W R193,194 RK73GB1J473J CHIP R 47K J 1/16W AM,AM2 R331 RK73GB1J154J CHIP R 150K J
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TK-3202/3206 PARTS LIST TX-RX UNIT (X57-6890-XX) ADDITIONAL PCB New New Ref. No. Address Parts No. Description Destination Ref. No. Address Parts No. Description Destination parts parts D122 HVC131 DIODE D202 HSC277 DIODE D203-206 HVC355B VARIABLE CAPACITANCE DIODE D210 HVC355B VARIABLE CAPACITANCE DIODE AK,AK2 D210 HVC355B VARIABLE CAPACITANCE DIODE AM,AM2 D210 HVC355B VARIABLE CAPACITANCE DIODE BM D301,302 RB706F-40 DIODE D303 DAN222 DIODE D401 RB521S-30 DIODE D402 1SR154-400 DIODE IC1 MB15A02
