Samsung VP-MX10 Service Manual page 31

Troubleshooting
4-4
If LCD display gets being inferior
(Being white screen, nothing comes
up on the screen
Does
the power supply work
normally? CNL0-/4 Pin
(3V, 3V)
Yes
Does input signal?
CNL0-3~pin
(DIGITAL DATA,DCLK)
Yes
Check serial port of LCD
control? CNL0-8~0pin
Yes
Input
signal in CNL0, CNL03
pin normal?
Yes
Change Assy-LCD
.Check FPC-LCD
No
.Check CNS-/4pin voltage of Sub-board
3.Check Q906,Q98,IC90-36pin of Main-board
.Check FPC-LCD
No
.Check CNS-~pin wave of sub-board
3.Check CN-~pin wave of main board
4.Check output of ICL0: wave of RL08~RL6
.Check FPC-LCD
No
.Check CNs-8~0pin wave of sub-board
3.Check CN-~9pin wave of main board
No
Check connection of LCD FPC
Samsung Electronics