© 2003-11 PRINTED IN JAPAN
B51-8669-00
(
N
)
1011
VOICE GUIDE & STORAGE UNIT
VGS-1
SERVICE MANUAL
CIRCUIT DESCRIPTION
Recording/Playback Operation .................................................................... 2
I/O Ports ......................................................................................................... 2
Beat Shift Circuit ........................................................................................... 3
Amateur Transceiver Identification ............................................................. 3
SEMICONDUCTOR DATA
MCU : HD6433024D01TE (IC2) ...................................................................... 4
Reset IC : S-80930CNNBG80 (IC1) ................................................................ 5
Analog Switch : TC7W66FK (IC53, IC54)...................................................... 5
Bus Switch with Level Shifting : TC7MBD3244AFK (IC57) ........................ 5
COMPONENTS DESCRIPTION ......................................................................... 6
PARTS LIST ........................................................................................................ 6
PC BOARD
ACCESSORY UNIT (X42-3250-60) ................................................................ 8
SCHEMATIC DIAGRAM..................................................................................... 9
TERMINAL FUNCTION .................................................................BACK COVER
CONTENTS
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