Hitachi L42X02A Service Manual page 42

SYMPTOM: NO PICTURE/LED IS BLUE ABNORMAL
No Picture / LED is blue
No
Check if
backlight
is normal
Yes
Check if connector
of CN11,CN12,
CN13 is normal
Yes
Check if signal of
LVDS is normal
Yes
Replace LCD panel
SYMPTOM: NO TV PICTURE ABNORMAL
No TV Picture
Check if voltage
of U44 pin7 is 5V
Yes
Replace U44
Check if voltage of power
PCB CN3 pin 12 is normal
Yes
No
Replace CN11
No
Replace Main PCB
No
Replace Main PCB
No
Replace LCD panel
42