Power Block Srv878Ek (Switching Regurator) Schematic Diagram - Sony SLV-SE70 Service Manual

POWER BLOCK SRV878EK (SWITCHING REGURATOR) SCHEMATIC DIAGRAM

— Ref. No. SRV878 Board:9,000 Series —
A
B C
POWER BLOCK
1
(SRV878EK)
SUB BOARD
MAIN BOARD
CN151
1
2
3
D101-104
1N4005
D101
2
C151
+
D103
47 / 400
!
L103 D104 R156
D102
4
0.33/1W
5
C108
D156
C102
1000p
! !
3 1N4005
0.1/250V
/250V
R162 2.2K
C109
!
C104 C103 C161
1000p
!
1000p 1000p 1500p
! /250V
R163 10K
/250V
/250V
C162 3300p
!
C105
L102
!
1000p
/250V
C163 3300p
R164 330
4
C101
!
0.1/250V
R165 330
!
L101
R101
1M 1/2
C153
Z101
5
!
750V
C154
F101
!
C164
250V T2A
0.033
N L
AC IN
!
CN101
GND
6
7 16
Note :
The components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
E
D
!
T151
POWER
TRANSFORMER
R154 C152
100K 2W
0.01 / 400
P1
R151
150K
R152 L151
150K
D152
C165
R153 R168
EG01C
150K 3300p
10K
S
P2
IC151
Q151
! SWITCHING REG.
FS2KM
AN8028
D158
D151 AK04
MA4270
1
2
3
4
5
D154 AK04
6
D155
AU02Z
B1
7
47/50
D159
R170
8
220
MTZJ22B
1/50
R167
9
1.8K
B2
R166
1K !
PC151
PS2561
(1/2)
Note :
Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
4-27
F
G H
D251
R251
AU02Z
10
S4
6
+
C251
47 / 50
R201
L201
D252 1K
10uH
S3L20U
1 2
7
R203
S3
3 4
180 / 2
8
IC201
+ +
+
REG.
C252 C201
PQ12RD08
C205
680 220
22 / 50
/ 16 16V
PS201 1.6A
!
L202
VR251 10uH
S2B
PS202 2A
R261 1K
5K
11
PC151
12
S2A
!
PS2561
D253
(2/2)
D3S4M
C261
D203
R263
+ 0.22
RD5.1ES
18K
+
D204
C253 K
IC251 R265 1SS119
1200
D205
10K
/ 10
1SS119
SHUNT REG.
9
S1 R264
AN1431T
+
D254
15K
10
C254 !
AU02Z R252
470/16
13
S5 0.47
PS251
CN251
750mA (2/2)
SLV-SE35/SE50/SE60/SE70/SE80/SX60/SX70/SX80
I J K
Q201,204
C209
Q201
REG
0.01
2SB733
+
C203
C204
220 / 16
100 / 16
+
R205
Q204
2.2K
2SC1740
R219
4.7K
+
R206
1.5K
R220 C206
47 / 35
4.7K Q205
2SD2394
!
R222
R207
R208
220
220
220
+
L206
+
C207
GND
22 / 50
Q205,206
C212
+5V REG
L205 1uH
0.01
Q207
2SD773
R216
4.7K Q210
UN4111
Q207,210,211
POWER SAVE
CONTROL
Q211
UN4211
4-28
L
CN201
1 AN GND
2 SW 5V
SW 5V
3
4 UN 30V
5 13V
6 13V C
7 MTR 12V
8 MTR 12V
9 TO/FROM
GND
MA-339
10
GND
BOARD
11 POWER CONT 1
CN600
SW 12V
12
(SEE PAGE
POWER CONT 2
13
4-19)
14 D 6 V
15 AN GND
R218
16 + F (5.4 V)
33 3W
17 POWER SAVE CONT1
18 - 14 V
19 - F (0 V)
R217
10
1W
SWITCHING REGURATOR
POWER BLOCK SRV878EK