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144MHz FM TRANSCEIVER
TH-K2AT/K2E/K2ET
© 2003-8 PRINTED IN JAPAN
B51-8658-00 (S) 836
SERVICE MANUAL
DISASSEMBLY FOR REPAIR ................................... 2
CIRCUIT DESCRIPTION ............................................ 6
SEMICONDUCTOR DATA ...................................... 14
COMPONENTS DESCRIPTION .............................. 15
PARTS LIST ............................................................. 17
EXPLODED VIEW.................................................... 23
PACKING ................................................................. 25
ADJUSTMENT ........................................................ 27
TERMINAL FUNCTION ........................................... 43
PC BOARD
TX-RX UNIT (X57-674X-XX) (A/3) ................... 44
TX-RX UNIT (X57-674X-XX) (B/3),(C/3) .......... 48
CONTENTS
SCHEMATIC DIAGRAM.......................................... 50
LEVEL DIAGRAM .................................................... 55
BLOCK DIAGRAM ................................................... 56
BC-21 (WALL CHARGER) ....................................... 58
PB-43N (Ni-MH BATTERY PACK) .......................... 58
BT-14 (BATTERY CASE) ......................................... 59
PG-4Y (PROGRAMMING INTERFACE CABLE) ..... 59
MCP-1A (MEMORY CONTROL PROGRAM) ......... 59
SPECIFICATIONS .................................BACK COVER
Knob (ENC)
(K29-5159-03)
Knob (VOL)
(K29-5150-03)
Cabinet assy
(16key)
(A02-3819-23)
Helical Antenna
(T90-1018-25)
Key top (16key)
(K29-9272-02)
Front glass
(B10-2746-03)
Knob
(PTT/LAMP/MON)
(K29-9274-03)
Knob (ENC)
(K29-5159-03)
Knob (VOL)
(K29-5150-03)
Cabinet assy
(4key)
(A02-3818-23)
Helical Antenna
(T90-1018-25)
Key top (4key)
(K29-9276-02)
Front glass
(B10-2746-03)
Knob
(PTT/LAMP/MON)
(K29-9274-03)
TH-K2AT/K2ET TH-K2E
Cap
(SP/MIC/DC IN)
(B09-0675-03)
Cap
(SP/MIC/DC IN)
(B09-0675-03)