Table of Contents
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Revision List ------------------------------------------------------------------------------------------------------------------------------ 03
1.Product Feature ------------------------------------------------------------------------------------------------------------------------04
2.LCD Monitor Description ------------------------------------------------------------------------------------------------------------05
3.Operation Instructions ---------------------------------------------------------------------------------------------------------------05
3.1 General Instructions ---------------------------------------------------------------------------------------------------------------05
3.3 Adjusting The Picture -------------------------------------------------------------------------------------------------------------06
4. Input/Output Specification -------------------------------------------------------------------------------------------------------- 09
4.1 Input Signal Connector -----------------------------------------------------------------------------------------------------------09
4.2 Factory Preset Display Modes --------------------------------------------------------------------------------------------------11
4.3 Power Supply Requirements ----------------------------------------------------------------------------------------------------11
5.Panel Specification ---------------------------------------------------------------------------------------------------------------------12
5.1 General Feature --------------------------------------------------------------------------------------------------------------------12
5.2 Optical Characteristics ------------------------------------------------------------------------------------------------------------13
6.Monitor Exploded View -----------------------------------------------------------------------------------------------------------------14
10. Schematic ------------------------------------------------------------------------------------------------------------------------------20
11. PCB Layout -----------------------------------------------------------------------------------------------------------------------------30
11.1 Main Board ------------------------------------------------------------------------------------------------------------------------30
11.2 Inverter/Power Board -----------------------------------------------------------------------------------------------------------31
11.3 Key Board -------------------------------------------------------------------------------------------------------------------------34
12. Maintainability -------------------------------------------------------------------------------------------------------------------------35
14. Check List after replacing LCD Main board ---------------------------------------------------------------------------------38
14.1 Check white-balance ----------------------------------------------------------------------------------------------------------38
14.2 Steps for writing DDC --------------------------------------------------------------------------------------------------------38
15. EDID Content --------------------------------------------------------------------------------------------------------------------------53
16. BOM List --------------------------------------------------------------------------------------------------------------------------54～62
17. Different Parts List--------------------------------------------------------------------------------------------------------------------- 64
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HP L1740
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Table of Contents
