Hitachi 19LD4550U Service Manual

19"LCD TV
Service
Service
Service
Description

Table Of Contents.............................................................1

Important Safety Notice...................................................2
Revision List.........................................................3
1. General Specification..................................................4
Operating Instructions.................................................5
2.1. The Use Of Remote Control...................................5
2.2. To Use The Menu.................................................6
2.3. External equipment setup.....................................47
2.4. Front Panel Control Knobs....................................58
3. Input/Output Specification..........................................59
4. Mechanical Instructions............................................61
5. Repair Flow Chart .................................................64
6. PCB Layout .......................................................69
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
19LD4550U
19LD4550C
TABLE OF CONTENTS
Page Description
6.1.Main Board................................................69
6.2.Power Board..............................................72
6.3.Key Board.............................................73
6.4.IR Board................................................73
7. White-Balance, Luminance Adjustment...................74
8. Block Diagram..................................................76
9. Schematic.....................................................77
9.1 Main Board....................................................77
9.2.Power Board..................................................96
9.3.Key Board................................................98
10. Exploded View..............................................99
11. BOM List....................................................100
12.Different Parts List.........................................130
SAFETY NOTICE
1
Hitachi 19LD4550U
Horizontal Frequency
43~58 kHz
Page