Planar LT1201 user manual Normal

No screen	CHK PWR
handle
(2)	REF: power
	flow

YES

CHK U5

SOFTWARE 、KEY PAD

NORMAL

LED always ON or always OFF when power on ok ?

NO

CHK

CN5 PIN18、20、30

NO

Back-light ok ?

YES

ABNORMAL

NO

U4

SCALER

CHK Panel
Backlight
	OK
NG
	CHK U4
	PIN 110、111

CHK

U11、Q10、

NG

D-SUB VGA

15PIN DVI-D

NG

INPUT/OUTPUT

YES

CHK

CN5 INPUT

REPLACE	OK
U4

RETURN

CHK

SOFTWARE

OR

CHANGE U4

CHK LCD-VCC

CHK DE & D-SHCLK

CHK R、G、B SIGNAL

YES

CABLE

CHK Panel

CONNECTOR

LT1201 User Manual (020-1080-00 Rev. A)

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