HP L1910 User Manual (English)

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19" LCD Color Monitor HP L1910

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..............................………........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............……………............10

4.1. Input Signal Connector............………….................10

4.2. Factory Preset Display Modes......…..................10

5. Panel Specification.....………………..................11

5.1. General Feature…….....………………..................11

5.2. Optical Characteristics………………………………13

6. Block Diagram……...................…………................15

6.1 Software Flow Chart………………………………...15

6.2.Electrical Block Diagram……………..….......17

7. Schematic……………......................................19

7.1 Main Board....……….......................................19

7.2 Power Board.….……....................................23

7.3 Key Board…………………………………………..27

8.PCB Layout..…….......................................28

8.1. Main Board………........................................28

8.2. Power Board….......................................30

8.3. Key Board………............….......................32

9. Maintainability……….......................................33

9.1. Equipments and Tools Requirement..............33

9.2. Trouble Shooting……….............................34

9.2.1 Main Board…………..............................34

9.2.2 Power Board………..............................36

9.2.3 Key Board…………..............................38

10 White-Balance, Luminance adjustment...39

11.Mechanical Instructions……………..…...….......41

12. Monitor Exploded View………………..…....….......47

13. BOM List………………………………..……………48

14. Different Parts List.........…………..........................59

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HP L1910 Specifications

General

3D	No
Panel type	TN
Pixel pitch	0.294 x 0.294 mm
Aspect ratio	5:4
Display diagonal	19 \
Display resolution	1280 x 1024 pixels
Display technology	LED
Vertical scan range	50 - 77 Hz
Horizontal scan range	24 - 83 kHz
Viewable size diagonal	303 mm
Viewable size, vertical	378 mm
Contrast ratio (typical)	800:1
Display number of colors	-
Viewing angle, horizontal	160 °
Display brightness (typical)	300 cd/m²
Supported graphics resolutions	720 x 400, 832 x 624, 1152 x 870, 1024 x 768 (XGA), 640 x 480 (VGA), 800 x 600 (SVGA)
On/off switch	Yes
HDMI ports quantity	0
Product color	Carbon, Silver
Country of origin	China
Market positioning	Business
Tilt angle range	-5 - 25 °
Cable lock slot type	Kensington
Panel mounting interface	100 x 100 mm
AC input voltage	100 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (max)	38 W
Power consumption (standby)	2 W
Power consumption (typical)	31 W
Storage temperature (T-T)	-20 - 60 °C
Operating temperature (T-T)	5 - 35 °C
Storage relative humidity (H-H)	5 - 90 %
Operating relative humidity (H-H)	20 - 80 %

Weight and Dimensions

Depth (with stand)	192 mm
Height (with stand)	415 mm
Weight (with stand)	4900 g
Depth (without stand)	58 mm
Width (without stand)	414 mm
Height (without stand)	347 mm
Weight (without stand)	3900 g