Philips DVD755VR - Block Diagrams; Power(Smps) BLOCK DIAGRAM

3-20 3-21
BLOCK DIAGRAMS
1. POWER(SMPS) BLOCK DIAGRAM
4
3
12
TO DRUM MOT
12VA
TO FLD TIMER
-27VA, FD(-), D(+)
TO CAP MOT
27VA
TO DVD/Hi-Fi
REG 12V
TO DVD
8V
TO DVD
3.3V
TO TUNER
33V
TO SYS/Hi-Fi/Tu
5.0V
TO DVD
5V
FROM µ-COM
PWR CTL 'H'
TO SYS/Hi-Fi/Tu
5.3VA
DRIVE & S/W BLOCK
OVER CURRENT LIMIT
BLOCK
(IC101,BD01,R124, R125,
R126, C112, D103, C135)
SW I/C VIN SUPPLY
BLOCK
(R106, R107, C104, C109,
D102, R105)
FROM µ-COM
TIMER 'H'
FROM µ-COM
HSR 'H'
LINE FILTER
BLOCK
(C101, L102, C102)
BD101
C103
V101
1
2
222
21
20
19
18
17
15
14
8
10 12
3
4
3
IC102
D117
RL104
D115 RL104
IC103
PW101
BR
(BK)
HOT CIRCUIT
BL
(WH)
F101
C111
HOT GND
R101
SNUBBER
BLOCK
(D101, R104,
C105, C106)
RECTIFIER &
SMOOTHING
(D110, C123,
L122, C126)
-27VA, FD(-), FD(+)
SUPPLY BLOCK
(D108, D107, ZD101, C121,
C130, R111, R118, R167, R168)
FD(-)
-27VA
FD(+)
FD(+)
FD(-)
-27VA
RECTIFIER &
SMOOTHING
(D106, C117, R130)
HSR SWITCHING
BLOCK
(Q155, R131, ZD104,
C156, Q153, Q154,
R151, R152, R110)
RECTIFIER &
SMOOTHING
(D111, C127,
L123, C128)
RECTIFIER &
SMOOTHING
(D118, L125,
C129, C131)
FEED-BACK
BLOCK
(R112, R113, C133,
R114, R115, R116,
R117)
8VA REG
BLOCK
(D114, IC151,
C154, R170)
12VA REG
BLOCK
(Q156,ZD103,C151,
C152,R153)
3.3V REG
BLOCK
(IC152, C153, R156)
RECTIFIER &
SMOOTHING
(D113, R119, C132)
33V S/W
BLOCK
(Q161, R154, R155)
PWR CTL
BLOCK
(Q162,R163,R164,
R171,C161)
5V BLOCK
(R157, Q150, R158,
R159, D121, C155)
!
!
C110
! !
!
!
16
NOTES : Symbol denotes AC ground.
Symbol denotes DC chassis ground.
COMBI SCART
PHILIPS