HP L1906 Service Manual

19" LCD Color Monitor HP L1906
1
Service
Service
Service
Horizontal Frequency
30- 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..............................………........3
2. LCD Monitor Description…………………………….......4
3. Operation Instruction…………...............……...........5
3.1. General Instructions...........................…...........5
3.2. Control Button…………….…..............……...............5
3.3 Adjusting the Picture...........................…............6
4. Input/Output Specification............……………............7
4.1. Input Signal Connector............………….................7
4.2. Factory Preset Display Modes......…..................7
4.3. Power Supply Requirements..............................8
5. Panel Specification.....………………..................9
5.1. General Feature…….....………………..................9
5.2. Optical Characteristics………………………………10
5.3 Parameter guide line for CCFL Inverter……………..11
6. Block Diagram……...................…………................12
6.1. Monitor Exploded View…………………....….......12
6.2 Software Flow Chart……………………….……….13
6.3. Electrical Block Diagram……………..….......15
7. Schematic……………......................................18
7.1 Main Board....……….......................................18
7.2 Power Board.….……....................................24
8.PCB Layout..………….......................................26
8.1. Main Board………........................................26
8.2. Power Board….......................................28
8.3. Key Board………............….......................31
9. Maintainability……….......................................32
9.1. Equipments and Tools Requirement..............32
9.2. Trouble Shooting………..............................33
10. White-Balance, Luminance adjustment...39
11. BOM List….....................................................40
12. Different Parts List.........…….……........................53

HP L1906 Specifications

General

3D	No
Pixel pitch	0.294 x 0.294 mm
Display diagonal	19 \
Display resolution	1280 x 1024 pixels
Vertical scan range	50 - 76 Hz
Horizontal scan range	30 - 83 kHz
Viewing angle, vertical	130 °
Contrast ratio (dynamic)	-
Contrast ratio (typical)	500:1
Display number of colors	16.78 million colors
Viewing angle, horizontal	140 °
Display brightness (typical)	270 cd/m²
Supported graphics resolutions	1280 x 1024 (SXGA)
On/off switch	Yes
DVI-D ports quantity	0
Tilt angle range	0 - 15 °
Panel mounting interface	100 x 100 mm
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (max)	37 W
Power consumption (standby)	2 W
Power consumption (typical)	33 W
Certification	CISPR, VCCI, CSA, TUV, GS, CCC, MIC, FCC, UL, GOST, SASO
Product color	Black, Silver
Country of origin	China
Market positioning	Business
Operating temperature (T-T)	10 - 35 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	20 - 80 %
Package weight	7000 g
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth (with stand)	203 mm
Height (with stand)	427 mm
Weight (with stand)	5300 g
Depth (without stand)	59 mm
Width (without stand)	422 mm
Height (without stand)	362 mm
Weight (without stand)	- g