Planar LT1201 user manual Normal

Page 16

No screen	CHK PWR
handle	CHK PWR
(2)	REF: power
	flow
	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
	NG	CHK U4
		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)

16

Image 16

Contents LT1201 Table of Contents Specification Page Important Servicing Safety Precautions Power Indicator green Location of ControlsHot‐key define ＋ RightBlock Diagram Interface BoardInternal connector pin definition Pin No Symbol FunctionPin No Cable Color Pin NoDDC SCL Symbol Function RXC+Cable pin definition Int. C/B cable for 3M touchConnection relationship 27、33、38、39 Trouble Shooting YESYES Normal Power Flow Upgrade software method Page Page Page January