19″LCD TV Hitachi 19LD4550U
1
Service
Service
Service
Horizontal Frequency
43~58 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
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
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
19LD4550U
19LD4550C
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