Sharp LC-32AD5E Service Manual ▷ View online
TROUBLESHOOTING GUIDE
Check SUB POWER PCB.
Change DIGITAL TUNER
MODULE.
MODULE.
Change DIGITAL TUNER
MODULE.
MODULE.
Yes
THE PICTURE DOES NOT
APPEAR. (DIGITAL)
APPEAR. (DIGITAL)
No
No
Yes
Is there signal at pins
2 and 3 of CP2402?
2 and 3 of CP2402?
Does an error
message display
message display
E-4
TROUBLESHOOTING GUIDE
Is setting of color
normal?
normal?
Is the color signal
received?
received?
Change the setting of color.
Receive the color signal.
Check IC803 and peripheral
circuit.
circuit.
THE COLOR DOES NOT
APPEAR
APPEAR
Yes
No
Yes
No
E-5
TROUBLSHOOTING GUIDDE
Is there signal at
pins 2, 4 of IC101?
pins 2, 4 of IC101?
Is there color signal
at pins 83 and 84 of
IC803 ?
at pins 83 and 84 of
IC803 ?
Check IC101 and
peripheral circuit.
peripheral circuit.
Check IC803 and peripheral
circuit.
circuit.
Change MAIN PCB.
Yes
No
Yes
No
ON SCREEN DISPLAY DOES
NOT APPEAR
NOT APPEAR
E-6
TROUBLESHOOTING GUIDE
THE SCREEN HAS A VERTICAL
LINE OR A HORIZONTAL LINE.
LINE OR A HORIZONTAL LINE.
Change V2301.
No
Yes
Change IC803.
Is there a normal
waveform at pins 184,
187 and 190 of IC803?
waveform at pins 184,
187 and 190 of IC803?
E-7
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