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Manuals
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LG Manuals
DVD Recorder
RH178H
Service manual
Smps Block Diagram - LG RH178H Service Manual
Hdd/dvd recorder
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Also See for RH178H
:
Service manual
(56 pages)
,
Owner's manual
(59 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Advertisement
4. SMPS Block Diagram
NOISE FILTER
BLOCK
V101,C101,C102,
R101,L101
FUSE
F101
BR BL
(BK)(WH)
BD101
A
TH0
1
B
C
D
C103
SNUBER
BLOCK
D101,R104,
C105,C106
DRIVE & S/W
BLOCK
IC101,D102,R105,
ZD101,ZD103,
R109,C104,C107,
C108,C109, BC101
!
Y CAP
C112
Y CAP
C113
RECTIFIER &
SMOOTHING BL OCK
D121,FR121,C120,R181,
R191,R131,ZD121
RECTIFIER &
SMOOTHING BL OCK
D122,C122,R122
5V RECTIFIER &
SMOOTHING BL OCK
D125,C121
14V RECTIFIER &
T101
SMOOTHING BL OCK
D124,C123,L123,C133
3.8V RECTIFIER &
SMOOTHING BL OCK
D127,C124,L124,C134
33V RECTIFIER &
SMOOTHING BL OCK
D126,C126,R147,ZD122
5.3V RECTIFIER &
SMOOTHING BL OCK
D128,C125,L125,C135
PHOTO COUPLER
FEEDBACK
IC102
BLOCK
R141,R142,
R143,R144,
ERROR AMP
R145,R146,
IC103
C143
3-21
3-22
P1701
FD(+)
FD(-)
-28V
14VA
3.8VA
33VA
5.3VA
PWR CTL
5V REG &
P1D01
S/W BLOCK
5V
IC156,R156,
C156
12V
12V REG &
P104
S/W BLOCK
IC155,R155,
FAN
C155
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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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This manual is also suitable for:
Hdr688x
Rh1999h
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