AD194TW Datasheet PDF - Toshiba


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AD194TW
Toshiba

Part Number AD194TW
Description Display Service Manual
Page 30 Pages

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SERVICE MANUAL
TOSHIBA
LCD-AD194TW
THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY.EVERY
REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL;
WE CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF
PUBLICATION AND DISCLAIMS RELIABILITY FOR CHANGES, ERRORS OR OMISSIONS.
MANUFACTURE DATA Jul-28-2006
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Table of Contents
Table of Contents ----------------------------------------------------------------------------- 02
Revision List ------------------------------------------------------------------------------------04
1. Product Feature ----------------------------------------------------------------------------05
2. LCD Monitor Description -----------------------------------------------------------------05
3. Operation Instructions --------------------------------------------------------------------06
3.1 General Instructions ------------------------------------------------------------------06
3.2 Control Buttons ------------------------------------------------------------------------06
3.3 Adjusting The Picture ----------------------------------------------------------------06
4. Electrical Performance Parameter ------------------------------------------------- 07
4.1 Input Signal Connector --------------------------------------------------------------07
4.2 Factory Preset Display Modes -----------------------------------------------------08
4.3 Power Supply --------------------------------------------------------------------------09
4.3.1 Input/Output Requirements ---------------------------------------------------09
4.3.2 Inverter Max Brightness ------------------------------------------------------- 10
4.3.3 Inverter Min Brightness --------------------------------------------------------10
4.4 Panel Specification ----------------------------------------------------------------11
4.4.1 General Feature (HSD190ME13-A11) -------------------------------------11
4.4.2 Optical Characteristics -------------------------------------------------------12
5. Block Diagram ------------------------------------------------------------------------------13
5.1 Monitor Exploded View -------------------------------------------------------------13
5.2. Disassemble Process --------------------------------------------------------------15
5.3 Software Flow Chart ------------------------------------------------------------------19
5.4. Block Diagram ---------------------------------------------------------------------------21
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5.4.1 Electrical Block Diagram ------------------------------------------------------21
5.4.2 Inverter/Power Board Block Diagram --------------------------------------22
6. Schematic -----------------------------------------------------------------------------------24
6.1 TOP ------------------------------------------------------------------------------------24
6.2 Main Board ---------------------------------------------------------------------------25
6.3 PWPC Board -----------------------------------------------------------------------29
6.4 KeyPad Board -----------------------------------------------------------------------31
6.5 Audio Board ------------------------------------------------------------------------32
7. PCB Layout ---------------------------------------------------------------------------------33
7.1 Main Board ----------------------------------------------------------------------------33
7.2 PWPC Board --------------------------------------------------------------------------35
7.3 Keypad Board -------------------------------------------------------------------------36
7.4 Audio Board ------------------------------------------------------------------------36
8. Maintainability ------------------------------------------------------------------------------36
8.1 Equipments and Tools Requirements -------------------------------------------36
8.2 Trouble Shooting ---------------------------------------------------------------------37
8.2.1 Main Board ---------------------------------------------------------------------37
8.2.2 Key Pad Board ------------------------------------------------------------------39
8.2.3 Power/Inverter Board ------------------------------------------------------40
9. White-Balance, Luminance Adjustment ---------------------------------------------42
10. EDID Content -----------------------------------------------------------------------------44
11. BOM List -----------------------------------------------------------------------------------45
11.1 AD194T——T981KH6NJ4D4ABP ------------------------------------------45~62
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Revision
Date
Revision List
Change Description
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