© 2001-5 PRINTED IN JAPAN
B51-8581-00
(
N
)
1370
VHF FM TRANSCEIVER
TK-780/H
SERVICE MANUAL
GENERAL ................................................................. 2
OPERATING FEATURES ......................................... 3
REALIGNMENT...................................................... 15
INSTALLATION...................................................... 20
CIRCUIT DESCRIPTION......................................... 28
SEMICONDUCTOR DATA ..................................... 33
DESCRIPTION OF COMPONENTS ....................... 35
PARTS LIST ............................................................ 37
EXPLODED VIEW .................................................. 47
PACKING ................................................................ 48
ADJUSTMENT ....................................................... 49
PC BOARD VIEWS
PLL/VCO (X58-4540-11) : K2,HK2 .................... 57
PLL/VCO (X58-4712-70) : K,HK ........................ 58
TX-RX UNIT (X57-6480-XX) (A/2) ................... 59
TX-RX UNIT (X57-6480-XX) (B/2).................... 65
SCHEMATIC DIAGRAM ........................................ 69
BLOCK DIAGRAM.................................................. 77
LEVEL DIAGRAM................................................... 80
TERMINAL FUNCTION ......................................... 82
SPECIFICATIONS................................................... 83
CONTENTS
Microphone
(T91-0621-05)
Cabinet (Top)
(A01-2165-13)
Panel assy
(A62-0991-03)
Key top
(K29-5284-02)
SUPPLEMENT
This service manual applied to products with 30200001 or subsequent serial numbers.
In terms of the products with the serial numbers earier than 30200001, refer to the TK-780/H
service manual as per part No. B51-8461-10.
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