Toshiba SD-130ESE Service Manual page 55

SCREEN SIZE DOESN'T CHANGE
Do screen size at 4:3, and play
the disk which supported,
Is there voltage at pin 8
of 21pin about 10V(No load)?
No
Is the voltage at pin 200
of IC4001 about 3.3V?
No
Check IC4001 and
peripheral circuit.
THE OUTPUT OF 21PIN DOESN'T
CHANGE(COMPOSITE - RGB)
When 21pin output is RGB,
Is there voltage at pin
16 of 21pin about 4.5V
(No load)?
No
Is the voltage at pin 197
of IC4001 about 3.3V?
No
Check IC4001 and
peripheral circuit.
TROUBLESHOOTING GUIDE
Yes
Yes
Yes
Yes
D-7
Check 21pin cable and
connection.
Check Q8001, Q8002, Q8003
and peripheral circuit.
Check 21pin cable and
connection.
Check Q8004, Q8005
and peripheral circuit.