Sony RDR-GXD455 Service Manual page 62

Key Operation or
Remote Control Error
Voltage on the Function Display Ass'y?
Yes
No
XT601 14.318MHz
oscillation
Yes
No
Check the circuit
around IC601 reset?
Yes
No
Key operation such
as STOP, PLAY, OPEN
Yes
Check RM701 (Remocon module)
and IC601 (Pin 5)
No
Check power of front connector
(CON5 Pin 11)
Check the circuit around the clock
Check the circuit around
IC601 reset
Check the circuit around the swith.
check the condition of commmunication
with Main Micom
(IC601 83-86, VFD STB, CLOCK
DATA-IN, DATA-OUT)
Yes
STOP, PLAY, OPEN
Key operation are
normal ?
Yes
Change IC701
6-2