Power Block Sr801 (Switching Regulator); Schematic Diagram - Sony SLV-798HF Service Manual

SLV-798HF/998HF
POWER BLOCK SR801 (SWITCHING REGULATOR) PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
— Ref. No.: SR801 Board; 8,000 Series —
1 2 3
POWER BLOCK (SR801)
A
(EXCEPT Chilean, PX MODEL)
F101
D107-110
2A 125V
L101
B
C102
L
0.1/250
C101
0.1/250
AC IN
H
120VAC
CN101
R101
C 6.8M
1/2
C103
0.1/125
C104
470P
125
D
E
F
16
Note : Note :
The components identified by Les composants identifiés par
mark ! or dotted line with mark une marque ! sont critiques
! are critical for safety. pour la sécurité.
Replace only with part number Ne les remplacer que par une
specified. pièce portant le numéro spécifié.
MA-318
REC/PB AMP, VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER
JK-159
(LINE-2 IN)
FR-130
(MODE CONTROL)
POWER BLOCK
DM-74
(OPERATION SWITCHES)
SWITCHING REGULATOR
POWER BLOCK SR801
4 5 6
R106
C109
D106
33K/3
0.033
1N4005
400
R102
1N4005
100K
D109 FB1
D110
D102
+ C106
EG01
120/200
R103
D108 D107 100K
Q101,102
SWITCHING
C107
4.7/50
Q101
R104
2SC4054
10K
Q102
C105
2SC4040
1500P
C110
125
C112 0.047
D103
0.0047
ERA15-02
*R107
R108
GND
D108
22
C111
MA165
0.047
PC101
ON3131
*R109 D104
RD3.0ES
Ref. No min typ max
R107 100/1 120/1 120/1
R109 560 620 680
R207 1.5k 2.2k
1.2k
4-35
There are few cases that the part printed on this diagram isn't mounted in this model.
8 9
7
T101 POWER TRANSFORMER
D201
R201
S5 PR1003
10 1/2
P1
C201
47/50
S4
D202
S3L20U +
D205
C202
RD51F
1000/16
P2 S3
D204
D3S4M
C204
+
1000/10
IC201
SHUNT REG.
S1
AN1431T
*R207
C208
R206
1/50
1.8K
B1
PC101
ON3131
VR201
R205
47 500
1/2
D206 R208
10
PR1003
S6
1/2
B2
S8
C207
470/10
D207
PR1003
S7 R204 R209
0.47 2.7
10 11
12
L202
20uH
+
C203
220/16
L203
20uH
CN201
+
11 +38
C205
10
+13
470/10
9 +13
8 GND
7 GND
TO
6 GND
MA-318 BOARD
+
5 +6V CN603
C206
4 +6V
47/50
(SEE PAGE 4-25)
3 -30V
2 -F(0V)
1 +F(4.5V)
C209
0.01
4-36