Sharp LC-30AA1H, Service Manual

Page: 23 / 110

23
LC-30AA1M
LC-30AA1H
TROUBLE SHOOTING TABLE
(Display)
YES
NO NO
YES
NO
NO
YES
YES
YES
YES
NO
NO
YES
NO
No sound or picture comes out.
Does the power LED
light up in green.
Is the Backlight off?
Perform checking
around IC2204.
Is "LOSS OF SYNC"
displayed? To "No picture comes
out"
Perform checking
around IC2208.
Is the power LED
blinking in red?
Is the AC cord
normal?
NO
Replace the
AC cord.
Blinking once?
Blinking twice?
Blinking five times?
Blinking seven times?
To "The backlight does not go on"
Check the power unit.
Check the temperature of the set.
Check the 1-bit amplifier unit.
250ms 1sec
LTD operation (1 cycle)
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
H: ON
L: OFF
Table of monitor power LED blinking timing at the time of error occurrence
Error type
Cable error
AVC-side power error
Blinking once: Slow
Lamp error
Blinking once: Fast
AVC temperature
error
Blinking three times
AVC fan error
Blinking four times
Monitor temperature
error
Blinking five times
Monitor fan error
Blinking six times
Monitor 1-bit error
Blinking seven times
Monitor power error
Blinking twice