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18.5
18.5
″
″
&21.5
&21.5
″
″
&23.6
&23.6
″
″
LCD
LCD TV
TV
AOC
AOC LE19W037&LE22(24)
LE19W037&LE22(24)H037
H037
1
1
Service
Service
Service
Service
Service
Service
Horizontal Frequency
Horizontal Frequency
31~60 KHz
31~60 KHz
TABLE OF CONTENTS
TABLE OF CONTENTS
Description
Description
Page
Page
Description
Description
Page
Page
SAFETY NOTICE
SAFETY NOTICE
ANY PER
ANY PERSON
SON A
ATTEMPTIN
TTEMPTING TO SE
G TO SERVICE
RVICE THIS CHASS
THIS CHASSIS MUST F
IS MUST FAMILIARIZE H
AMILIARIZE HIMSELF WITH
IMSELF WITH THE CHASS
THE CHASSIS
IS
AND BE
AND BE AW
AWARE OF TH
ARE OF THE NECESS
E NECESSARY S
ARY SAFETY PR
AFETY PRECAUTIONS
ECAUTIONS TO BE US
TO BE USED WHEN S
ED WHEN SERVICING
ERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
6.2 Power Board………………..…….…….………......34
6.2 Power Board………………..…….…….………......34
6.3 LED Board……...…………..…….…….………......44
6.3 LED Board……...…………..…….…….………......44
6.4 Key
6.4 Key Board………………
Board………………………..……..……….......45
………..……..……….......45
6.5 IR
6.5 IR Board………………
Board………………………….……..……….......45
………….……..……….......45
7. Adjustment……..………………………….................46
7. Adjustment……..………………………….................46
8. Block Diagram.……...............................................47
8. Block Diagram.……...............................................47
9.
9. Schematic Diagram…..…………....…………
Schematic Diagram…..…………....………………...49
……...49
9.1 Main Board…………………………………...…......49
9.1 Main Board…………………………………...…......49
9.2 Power Board…………..….….……...………….......58
9.2 Power Board…………..….….……...………….......58
9.3 LED
9.3 LED Board………….……..….…
Board………….……..….……...………….......66
…...………….......66
9.4 Key
9.4 Key Board………………
Board……………….……….…………….........68
.……….…………….........68
9.5 IR
9.5 IR Board……...………….……
Board……...………….……….…………….........69
….…………….........69
10. Exploded View……………………………….…....70
10. Exploded View……………………………….…....70
11. BOM List……..……….………………….…………..74
11. BOM List……..……….………………….…………..74
Table of Contents.......……....................................….......1
Table of Contents.......……....................................….......1
Important Safety Notice.......................................…….....2
Important Safety Notice.......................................…….....2
Revision
Revision List…………………
List………………………………………
……………………………....3
………....3
1.
1. General
General Spe
Specification..............................……...….......5
cification..............................……...….......5
2.
2. Operating Instructions………………...…….…
Operating Instructions………………...…….……….......6
…….......6
2.1 The Use
2.1 The Use of Remote Control…….…..……….…….......6
of Remote Control…….…..……….…….......6
2.2 To Use the
2.2 To Use the Menus….....………………
Menus….....………………….…..…….......7
….…..…….......7
2.3 How
2.3 How to Connect……..……………….…….……
to Connect……..……………….…….……….....17
….....17
2.4 Front Panel Control
2.4 Front Panel Control Knobs…….…………
Knobs…….………….……….....19
.……….....19
3. Input/Output Specification…………....................…....20
3. Input/Output Specification…………....................…....20
4. Mechanical I
4. Mechanical I nstructions…………
nstructions…………………….................22
………….................22
5. Repair Flow Chart
5. Repair Flow Chart ………………………
……………………….…….…….....25
.…….…….....25
6. PCB
6. PCB Layout ………………..…………………....….......32
Layout ………………..…………………....….......32
6.1
6.1 Main Board…………..………………...…….…
Main Board…………..………………...…….…….......32
….......32
Summary of Contents for Envision LE19W037
Page 6: ...6 2 Operating Instructions 2 1 The Use of Remote Control...
Page 7: ...15...
Page 8: ...16...
Page 9: ...17 2 3 How to Connect...
Page 13: ...33 33...
Page 14: ...34 34 6 2 Power Board 6 2 Power Board LE19W037 715G3762P01W30002S LE19W037 715G3762P01W30002S...
Page 15: ...35 35...
Page 16: ...36...
Page 17: ...37 LE22H037 LE24H037 715G3895P01L30002H...
Page 18: ...38...
Page 19: ...39...
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