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DR7400
Service manual
Block Diagrams; Smps Block Diagram - LG DR-7400 Service Manual
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Owner's manual
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Contents
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Troubleshooting
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BLOCK DIAGRAMS
1. SMPS Block Diagram
AC100~240V
RECTIFIER(33VA)
LPF
RECTIFIER(12VA)
LPF
RECTIFIER(5V)
LPF
RECTIFIER(3.3VA)
LPF
FEED B.
3-10
3-11
REG 33V
12V
REG(12V)
12VL
REG(12V)
5VL
REG(12V)
REG(5V)
5V
5VA
REG(5VA)
3.3V
3.3VA
PWR CTL
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Chapters
Section 1 Summary
3
Section 2 Cabinet & Main Chassis
7
Section 3 Electrical
11
Table of Contents
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