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RH1757
Service manual
Power : I/O Board Block Diagram - LG RH1757 Service Manual
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:
Service manual
(109 pages)
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Contents
Table of Contents
Troubleshooting
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Table of Contents
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6. Power : I/O Board Block Diagram
5.3VA
U-COM
(MN101DF10GAF)
Reset IC
(KIA7031P)
PWR Fail
(KIA7042)
EEPROM
(24LC16B)
Tuner
Etc Logic
5.2V
5VT
SYS_5.3VA
Video S/W
U-COM
(BH7868FS)
(MN101DF10GAF)
V 6dB Amp
(MM1510)
Opti cal Driv e
3-25
12V
Diff OP AMP
(NJM4580)
3.3V
DAC
A/V Decoder
(CS4351)
(SAA7137)
I/O U-COM PWR CTL
PWR_CTL_H
5.2V, 12V, 3.3V, 1.8V
TIMER_H
5VT, 33VT
STANBY_H
12VG(SW)
3-26
33VT
Tuner
1.8V
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Chapters
Section 1 Summary
3
Section 2 Cabinet & Main Chassis
9
Section 3 Electrical
13
Section 4 Rs-01A Loader Part
62
Table of Contents
Troubleshooting
HDR PART
14
ELECTRICAL TROUBLESHOOTING GUIDE
63
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