Hitachi UltraVision L42S503 User manual

Caution: Be sure to read this manual before servicing. To ensure safety from fire, electric shock, injury, harmful
radiation and materials, various measures are provided in this LCD TV. Be sure to read cautionary items described
in the manual before servicing. These servicing instructions are for use by qualified service personnel only. To
reduce the risk of electric shock, do not perform any servicing other than that described in the operating instructions
unless you are qualified to do so.
1. Summary
New High Gloss Black Frame; (4) HDMI™ (V.1.3 with x.v.Color™, Deep Color, CEC) - 1080p60, 1080p24 Input
Compatible; New Multi-Function Remote Control; 120Hz 1080p Perfected; Reel 120 Motion Correction;
Dynamic/Standard/Movie/Custom/Game Picture Memories; 3 Preset Color Temperatures; Game Mode
LCD TV 2009-4
L42S503
HITACHI
Block Diagram......……………..………….………......21
Schematic Diagram…...………………………………22
Connection Diagram...……….………….……..……..40
Wiring Diagram....………..………………....…….......41
PCB Layout...……………………………....……….....42
Exploded View...…………………..……….................50
Parts List...……………..............................................51
Summary………..........……..........................……….........1
Features….….………..........................................……......4
Dimensions……..……………………………………………5
General Specification................................…………........6
Service points…………….…………….……………..........7
Adjustment……………..………..…….………..….…….....8
Troubleshooting.………...……………………….…….......11
Self Diagnosis Function..…..…………………...……….....20
Table of Contents
HITACHI
- NOTICE-
All warranty parts are provided through
Hitachi Customer Service.
All Servicers should call:
800-654-7013
Revised: 041210 or

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Caution for Safety
Please read this page before repair the TV.
The following safety precautions are designed to help you stay safe and prevent accidents during the repair work.

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2. Features
●Enhanced definition LCD display panel
V420H1-LH5 is a 42” TFT Liquid Crystal Display module with 12-CCFL Backlight unit and 2ch-LVDS interface. This
module supports 1920 x 1080 Full HDTV format and can display 1.07G colors (8-bit+FRC/color). The inverter
module for backlight is built-in.
●New High Gloss Black Frame
●(4) HDMI™ (V.1.3 with x.v.Color™, Deep Color, CEC) - 1080p60, 1080p24 Input Compatible
●New Multi-Function Remote Control
●120Hz 1080p Perfected
●Reel 120 Motion Correction
●Dynamic/Standard/Movie/Custom/Game Picture Memories
●3 Preset Color Temperatures
●Game Mode

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3. Dimensions