HP L1950 User Manual

19" LCD Color Monitor HP L1950
38
9.2 Trouble Shooting
9.2.1 Main Board
1、No power
No power
Press power key and look if the
picture is normal
Please reinsert and make sure the
AC of 100-240 is normal
Reinsert or check the
power section
X201 oscillate waveforms are
normal
Measure U701 PIN 2=3.3V
Q403 = 3.3V
Measure CN401 PIN5/6=5V?
Replace U401
Replace X201
OK
OK
OK
NG
NG
NG
NG
Chec
TXD
Check power section
Replace U701/Q403

HP L1950 Specifications

General

3D	No
HD type	-
Panel type	TFT
Display surface	Matt
Display diagonal	19 \
Display resolution	1280 x 1024 pixels
Display technology	LCD
Vertical scan range	50 - 77 Hz
Horizontal scan range	24 - 83 kHz
Contrast ratio (typical)	800:1
Viewing angle, horizontal	160 °
Display brightness (typical)	300 cd/m²
Supported graphics resolutions	640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 832 x 624, 1024 x 768 (XGA), 1152 x 870
Plug and Play	Yes
Tilt angle range	-5 - 35 °
Active display area (W x H)	378 x 303 mm
AC input voltage	90 - 256 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	2 W
Power consumption (typical)	30 W
USB hub version	2.0
HDMI ports quantity	0
USB Type-A downstream ports quantity	2
Product color	Silver
Country of origin	China

Weight and Dimensions

Bezel width (top)	18 mm
Depth (with stand)	301 mm
Height (with stand)	503 mm
Weight (with stand)	7400 g
Bezel width (bottom)	27 mm
Depth (without stand)	58 mm
Width (without stand)	414 mm
Height (without stand)	347 mm
Weight (without stand)	6500 g