Toshiba SD-3860SCA Service Manual page 33

DOES NOT LIGHT ON DISPLAY
Is the voltage at pin 1 and
2 of V651 about -11V?
Yes
Is the voltage at pin 31 and
32 of V651 about -14V ?
Yes
Is the voltage at pin 13
of IC651 about 5V?
Yes
Is the voltage at pin 30
of IC651 about -18V?
Yes
Replace V651 or IC651.
TROUBLESHOOTING GUIDE
No
No
No
No
D-3
Check FILAMENT(+)
line of POWER BLOCK.
Check FILAMENT(-)
line of POWER BLOCK.
Check AT+D5V line of
POWER BLOCK.
Check -20V line of
POWER BLOCK.