HP L1950 User Manual

19" LCD Color Monitor HP L1950
41
2. W/LED No Backlight
Check C812 (+) =12V
NG
OK
Check Q806
Check ON/OFF signal
Check Interface board
NG
OK
Check IC801 pin2=5V ?
NG
OK
Change Q802 or Q803
Check the pin1 of IC801 have saw tooth wave
NG
OK
Change IC801
Check ZD803 has the output of square wave at short time.
NG
O
CheckQ805/Q806
Check the resonant wave of pin2 & pin5 for T801
NG
Check the output of T801
Check Q801/Q811/D806/D807/D808
Check connecter & lamp
OK
NG
Change T801
OK

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