Altek AELT27A1 Service Manual

27'' LCD TV Color Monitor
Service
Service
Service
Description
Table Of Contents......................................................1
Revision List........................................................2
1. Monitor Specification...............................................3
2. Operating Instructions.........................................4
2.1 The Use Of Remote Control....................................4
2.2 The Use Of Teletext............................................5
2.3 Front Panel Control Knobs.....................................6
2.4 OSD Operations .................................................7
2.5 How To Connect ...............................................14
3 Input/Output Specification......................................18
3.1 Input Signal Connector..........................................18
3.2 RGB Input Signal Timing .......................................19
4. Repair Flow Chart ..........................................20
5. White Balance Luminance Adjustment...............26
6. BOM List...................................................30
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

TABLE OF CONTENTS

Page Description
7. PCB Layout................................................61
7.1 Main Board.................................................61
7.2 Power Board............................................63
7.3 IR Board .............................................66
7.4 DC-DC Board...............................................67
7.5 Earphone Board..........................................68
8. Block Diagram................................................69
8.1 Main Board...........................................69
8.2 Power Board........................................70
8.3 Exploded View.....................................71
9. Schematic Diagram..............................73
9.1 Main Board........................................73
9.2 Power Board...........................................83
9.3 Tuner Board................................................87
9.4 Earphone Board...........................................90
SAFETY NOTICE
1
ALTEK AELT27A1
Horizontal Frequency
31.5-60 kHz
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