LG 32HIZ22 Service Manual page 18

2-2. No Raster - LCD
(1) Symptom
1) Does't minute discharge at module.
2) It maintains the condition where the front LED is normal.
(2) Check follow
Is the Inverter
On or Off
Off
On
Is the link cable
normal?
No
Yes
Is the Power
Board normal?
No
Yes
Is the VSC
Board normal?
No
Is the inverter
24V on power board
normal?
Yes
1. Check the Inverter connector.
2. Check the LCD Module.
1. Reconnect the link cable in P804
Is output
the normality Low/High
voltage except stand-by
5V?
Yes
1. Check the Main Board.
Is the P804's
output normal?
'Inverter_On'
Signal is High of 5
in P1000 on Main
No
board
1. Check the Main board.
1. Change the Power Board.
No
1. Change the Main Board.ß
No
- 18 -
th pin
Check the Power board.
Yes
No