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
Содержание L1908w
Страница 4: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 4 1 Monitor Specification ...
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Страница 6: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 6 ...
Страница 9: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 9 3 3 Adjust the Picture ...
Страница 10: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 10 ...
Страница 11: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 11 ...
Страница 12: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 12 ...
Страница 14: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 14 4 2 Factory Preset Display Modes ...
Страница 16: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 16 LM190WX1 TLE1 ...
Страница 17: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 17 5 2 Optical Characteristics M190PW01 V0 M190A1 L07 C2 ...
Страница 18: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 18 LTM190M2 L31 ...
Страница 19: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 19 LM190WX1 TLE1 ...
Страница 26: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 26 7 Schematic POWER BOARD ...
Страница 27: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 27 INTERFACE BOARD TOP ...
Страница 28: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 28 INTERFACE BD_POWER ...
Страница 29: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 29 INTERFACE BD_ VGA DDC INTERFACE IC901 ...
Страница 30: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 30 SCALER GM5726H ...
Страница 31: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 31 INTERFACE BD_SCALER ...
Страница 32: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 32 KEY PANEL INTERFACE ...
Страница 33: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 33 AUDIO ...
Страница 34: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 34 Function Key BD ...
Страница 35: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 35 8 PCB Layout 8 1 Main Board ...
Страница 36: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 36 ...
Страница 37: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 37 8 2 Power Board ...
Страница 38: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 38 ...
Страница 39: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 39 ...
Страница 43: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 43 9 2 3 Checking the backlight unit 9 2 4 Abnormal screen ...
Страница 46: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 46 9 2 8 Checking the resolution changed IC movement ...
Страница 47: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 47 9 2 9 Checking the DC DC converter circuit ...
Страница 48: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 48 9 2 10 No power on ...
Страница 49: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 49 9 2 11 Checking inverter board circuit ...
Страница 50: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 50 9 2 12 Abnormal Audio Output ...
Страница 53: ...19 LCD Color Monitor HP L1908w L1908wm L1908wi 53 11 Monitor Exploded View ...