Toshiba 15DLV77B Service Manual page 64

THE PICTURE DOES NOT
APPEAR (1)
Does backlight shine?
Yes
Is CD7201 connected?
Yes
Is there signal at pins 5, 6,
8, 9, 11, 12, 14, 15, 17
and 18 of CD7201?
Yes
Is there signal
at IC2405?
Yes
Check DIGITAL PCB.
TROUBLESHOOTING GUIDE
No
Is there voltage at pins 1, 2
and 3 of CP505 12V?
No
Connected CD7201.
No
No
No
Yes
E-3
Check IC506, T501 and
peripheral circuit.
Change V2301.
Change IC2405.