Read Sharp LC-30HV4E (serv.man10) Service Manual online
60
LC-30HV4E
TROUBLE SHOOTING TABLE
(Display)
LCD LED: ON
AVC-C LED: OFF
Check power switch, AC power cable and power unit of AVC-C.
LCD LED: OFF
AVC-C LED: ON
Check power switch, AC power cable and power unit of LCD.
LCD LED: BLINKING
(Once per second)
Check system cable, power switch, AC power cable and power unit of AVC-C.
LCD LED: BLINKING
(4 times per second)
Check cooling fan, IC2102 and peripheral circuits.
LCD LED: ON IN RED
AVC-C LED: ON IN RED
LCD LED never turns to
green.
Check power switch, AC power cable and power unit of LCD.
AVC-C LED never turns
to green.
Check power switch, AC power cable and power unit of AVC-C.
LCD panel backlight
never lights up.
Reset the lamp error count. (See adjustment procedure.)
Check Q6551, Q6554, Q6557, Q6560, Q6563, and Q6566 as well as peripheral circuits.
Initialize EEPROM. (See
adjustment procedure.)
If not successful: Check power switch, AC power cable and power unit of LCD.
No Power
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