Samsung VP-MX10, Service Manual

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Troubleshooting
4-4 Samsung Electronics
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)
Does input signal?
CNL0-3~pin
(DIGITAL DATA,DCLK)
Check serial port of LCD
control? CNL0-8~0pin
Change Assy-LCD
.Check FPC-LCD
.Check CNS-/4pin voltage of Sub-board
3.Check Q906,Q98,IC90-36pin of Main-board
No
Yes
No
No
Input
signal in CNL0, CNL03
pin normal?
Check connection of LCD FPC
No
.Check FPC-LCD
.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
.Check CNs-8~0pin wave of sub-board
3.Check CN-~9pin wave of main board
Yes
Yes
Yes