Sharp LC-26DV24U

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