HP W1907 Service Manual

Check the 5V power are supplied on P306
pin1,2,3(totheLCDpanel)
Continue
OK
NG
Check if the Voltage on I301 pin 2 that is
DC power at 5V.
OK
NG
Failure Point
1) Printed wire broke between P301 pin 5,
6, and I301 pin 2.
2) FB301 or FB302 or FB303 is open.
Check if the MOS FET Gate level on I301
pin 1, that Gate level is low.
OK
NG
OK
NG
Failure Point
1) Printed wire broke between Q302
pin 3, R307, R308, C309 and I301 pin
1.
2) Q302 is failure.
Failure Point
1) Printed wire broke between Q302 pin 2
and I306 pin 127.
2) I306 is failure.
Check the PANELVCC_EN signal of the
Q302 pin 2 (with R309) at high level.
Failure Point
I301 is failure.
Check the P306 all LVDS signals.
Failure Point
1) Printed wire broke between P306 and
I306 LVDS signals.
2) I306 is failure.
Failure Point
1) The LVDS cable broke between P306
and LCD module.
2) LCD module is failure.
OK
NG
Page 13
022-83718162
www.chinadse.org
022-83715667

HP W1907 Specifications

General

Pixel pitch	0.285 x 0.285 mm
Display diagonal	19 \
Display resolution	1440 x 900 pixels
Viewable size diagonal	483 mm
Contrast ratio (typical)	1000:1
Digital vertical frequency	55 - 75 Hz
Digital horizontal frequency	30 - 83 kHz
Power requirements	100-240VAC
HDCP	Yes
Certification	FCC Class B
Product color	Silver
Country of origin	China
Market positioning	-
Panel mounting interface	100 x 100 mm
Power consumption (standby)	2 W
Power consumption (typical)	49 W
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	15 - 90 %
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth (without stand)	182 mm
Width (without stand)	452 mm
Height (without stand)	378 mm
Weight (without stand)	5000 g