Sharp LC-26DV24U Service Manual page 32

THE PICTURE DOES NOT
APPEAR
Does backlight shine?
Yes
Is CD2804 connected?
Yes
Is there voltage at
pins 1, 2, 3, 4 and 5 of
CP2804 5V?
Yes
Is there signal at pins 13,
14, 16, 17, 19, 20, 22,
23, 25 and 26 of
CP2804?
No
Change DIGITAL PCB.
TROUBLESHOOTING GUIDE
No
Is there voltage at pins 1,
2, 3, 4 and 5 of CP406
24V?
No
Connected CD2804.
No
Check IC407 and
peripheral circuit.
Yes
No
Yes
E-3
Check IC401, T401, D437
and peripheral circuit.
Change V2301 (PANEL).