Diagramas De Bloques; Diagrama De Bloques Smps - LG DR385 Manual De Servicio

DIAGRAMAS DE BLOQUES

1. DIAGRAMA DE BLOQUES SMPS

R101
BD101
C103
NOISE FILTER
BLOCK
(C101,L102,
C102)
!
FUSE
(F101)
!
!
Y-CAP
(Open)
C110
BR BL
(BK)(WH)
Solamente para uso interno de LGE
T101
!
TRANS
6
8
+
SNUBBER
BLOCK
9
(D101,C105
C106,R104)
4
DRIVE & S/W BLOCK
(IC101, D102, R105,
C104, C107, C108,C109,
R109, ZD101,ZD102)
2
1
PHOTO COUPLER
(IC102)
!
!
Y-CAP
C111
3-13
RECTIFIER &
7 SMOOTING BLOCK
(D134,C120,R158
FD(-)
R160,R161, ZD151,R170)
RECTIFIER &
-25 VA
SMOOTING BLOCK
(D135,C129,R171)
10
RECTIFIER &
11
SMOOTING BLOCK
(D127,C126,C132,
R128,L123,C127)
12
RECTIFIER &
SMOOTING BLOCK
(D123,C123
13
,L122,C124)
14
RECTIFIER &
SMOOTING BLOCK
(D121,D122,
C121,L121,C122)
RECTIFIER &
SMOOTING BLOCK
15
(D128,C130,
R138,ZD152)
FEED-BACK
BLOCK
R121,R122,
C131,R123.
R124.R125
ERROR
R126)
AMP
(IC103)
3-14
FD(+) S/W Block
S/W FD(+)
(Q162,R168
R169,Q163)
S/W 5.3VA S/W Block
S/W 5.3 VA
(Q161,R163,R164
R165,C162)
12V REG & S/W BLOCK
(IC131,C133,R130)
S/W 12VA REG & S/W BLOCK
S/W 12 VA
(Q164,R139,R140,R141,Q165,
Q170,C161,C160,ZD153)
TO Main
3.3V REG & S/W BLOCK
(PVM03)
(IC133,C137,R137)
12V_Loader
2.5V REG & S/W BLOCK
5V_Loader
(IC136,C140,R144
R146,C164)
5V REG & S/W BLOCK
(IC132,C134,R131)
33VT S/W Block
(Q167,R181,R182
33VT
R183,R184)
5VT S/W Block
5VT
(Q166,R185,R186
D136,C163)
1.25V REG & S/W Block (DC-DC)
(IC151,R152,C158,C156,R153,
R154,R155,C157,L151,L152
C154,C152,R151,C159,R159
C155,C151,C153)
5VL S/W Block
(Q168,R166,R188
Q169,R167,R187,C135)
Copyright © 2008 LG Electronics. Inc.
Solamente para propósitos de entrenamiento y servicios
1W "H"
5V
1.25V
2.5V
3.3V
TIMER"H"
P.CTL"H"
Todos los derechos reservados.