Read Sharp LC-37AD1E (serv.man9) Service Manual online
47
LC-37AD1E
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.
light up in green.
Is the Backlight off?
Perform checking
around IC2204.
around IC2204.
Is "LOSS OF SYNC"
displayed?
displayed?
To "No picture comes
out"
out"
Perform checking
around IC2208.
around IC2208.
Is the power LED
blinking in red?
blinking in red?
Is the AC cable
normal?
normal?
NO
Replace the
AC cable.
AC cable.
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
H: ON
L: OFF
H: ON
L: OFF
H: ON
H: ON
L: OFF
H: ON
H: ON
L: OFF
H: ON
H: ON
L: OFF
H: ON
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
AVC-side power error
Blinking once: Slow
Lamp error
Blinking once: Fast
Blinking once: Fast
AVC temperature
error
Blinking three times
error
Blinking three times
AVC fan error
Blinking four times
Blinking four times
Monitor temperature
error
Blinking five times
error
Blinking five times
Monitor fan error
Blinking six times
Blinking six times
Monitor 1-bit error
Blinking seven times
Blinking seven times
Monitor power error
Blinking twice
Blinking twice
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