HP L1908w User Manual

19" LCD Color Monitor HP L1908w / L1908wm / L1908wi
1
Service
Service
Service
Horizontal Frequency
24-83 kHz
TABLE OF CONTENTS
Description Page Description Page
SAFETY NOTICE
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC
EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
Table Of Contents.......……..............................…........1
Revision List.…........................................……......2
1. Monitor Specification..............................………........4
2. LCD Monitor Description…………………………….......7
3. Operation Instruction…………...............……................8
3.1. General Instructions...........................…....................8
3.2. Control Button…………….…..............……................8
3.3 Adjusting the Picture...........................…....................9
4. Input/Output Specification............…………….............13
4.1. Input Signal Connector............…………..................13
4.2. Factory Preset Display Modes......………................14
5. Panel Specification.....………………...........................15
5.1. General Feature…….....………………….................15
5.2. Optical Characteristics…………………..…………17
5.3 Parameter guide line for CCFL Inverter…………20
6. Block Diagram……...................…………................22
6.1 Software Flow Chart………………………………...22
6.2.Electrical Block Diagram……………..….......24
7. Schematic……………......................................26
8.PCB Layout..…….......................................35
8.1. Main Board………........................................35
8.2. Power Board….......................................37
9. Maintainability……….......................................40
9.1. Equipments and Tools Requirement..............40
9.2. Trouble Shooting………..............................41
10 White-Balance, Luminance adjustment...51
11. Monitor Exploded View………………..…....….......53
12. BOM List………………………………..……………54
13. Different Parts List…....................................66

HP L1908w Specifications

General

3D	No
Panel type	TFT
Pixel pitch	0.285 x 0.285 mm
Display surface	Matt
Display diagonal	19 \
Separate H/V sync	Yes
Display resolution	1440 x 900 pixels
Display technology	LCD
Native aspect ratio	16:10
Vertical scan range	50 - 76 Hz
Maximum refresh rate	75 Hz
Horizontal scan range	24 - 83 kHz
Viewable size diagonal	482.5 mm
Viewable size, vertical	256.7 mm
Contrast ratio (typical)	1000:1
Display number of colors	-
Viewable size, horizontal	409.8 mm
Viewing angle, horizontal	160 °
Display scanning frequency	Horizontal frequency: 24-83 kHz, Vertical frequency: 50-76 Hz
Display brightness (typical)	300 cd/m²
Supported graphics resolutions	1440 x 900 (WXGA+)
I/O ports	VGA
HDMI ports quantity	0
Certification	TCO 03, Taiwan Green Mark, CECP
Product color	Black
Country of origin	China
Tilt angle range	-5 - 30 °
Cable lock slot type	Kensington
Panel mounting interface	100 x 100 mm
On Screen Display (OSD) languages	DEU, DUT, ENG, ESP, FRE, ITA, JPN
UNSPSC-code	43211902
Audio included	No audio included at platform level
Security features	Kensington Lock-ready
Power requirements	100 - 240 VAC, 50 - 60 Hz
Multimedia connections	Optional HP Flat Panel Speaker Bar: powered directly by the monitor or PC, the Speaker Bar attaches to the monitor's lower bezel to bring full audio support to select HP Flat Panel Monitors. Features include dual speakers with full sound range and external jack for headphones, part number EE418AA. For more information, refer to the product's Quick Specs. Optional HP Flat Panel Monitor Quick Release: an easy-to-use, VESA-compliant, flat panel monitor mounting solution that allows you to quickly and securely attach a flat panel monitor to a variety of stands, brackets, arms or wall mounts, part number EM870AA. For more information, refer to the product's Quick Specs.
Recommended resolution	Preset VESA Graphic Modes (non-interlaced): 1280 x 1024 @ 60 and 75 Hz, 1024 x 768 @ 60 and 75 Hz, 1152 x 870 @ 75 Hz (Mac), 1152 x 900 @ 66 Hz (Sun), 832 x 624 @ 75 Hz (Mac), 800 x 600 @ 60 and 75 Hz, 720 x 400 @ 70 Hz, 640 x 480 @ 60 and 75 Hz
Active display area (W x H)	409.8 x 256.7 mm
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (max)	50 W
Power consumption (off)	1 W
Power consumption (standby)	2 W
Power consumption (typical)	37 W
Operating altitude	0 - 3658 m
Non-operating altitude	0 - 12192 m
Storage temperature (T-T)	-34 - 60 °C
Operating temperature (T-T)	5 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	20 - 80 %
Non-operating relative humidity (non-condensing)	5 - 90 %
Package depth	174 mm
Package width	536 mm
Package height	423 mm
Package weight	6450 g
Sustainability certificates	EPEAT Silver, ENERGY STAR
Cables included	AC, VGA
Power cable length	1.9 m

Weight and Dimensions

Depth (with stand)	187 mm
Width (with stand)	446 mm
Height (with stand)	370 mm
Weight (with stand)	5100 g
Depth (without stand)	59 mm
Height (without stand)	301 mm
Weight (without stand)	4200 g