Power Block Sr826 (Switching Regulator) Schematic Diagram - Sony SLV-E850B Service Manual

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3 7 6 3 1 5 1 5 0

POWER BLOCK SR826 (SWITCHING REGULATOR) SCHEMATIC DIAGRAM

— Ref. No. SR826 Board; 9,000 Series —
A
B C
POWER BLOCK
1
(SR826)
SUB BOARD
MAIN BOARD
1, 2
D101-104
1N4005
2 D101
C151
+
D103
47 / 400
D104
L103 *R156
D102
/1W
4, 5
C108
D156
C102 D151 AK04
1000p
! !
3 1N4005
0.1/250
/250V
R162 2.2K
C109
!
C104 C103 C161
1000p
!
1000p 1000p 1500p
! /250V
R163 10K
/250 /250
C162 3300p
L102 C105
!
1000p
/250V
C163 3300p
*R164
4
C101
! 0.1/250
*R165
T E
L 1 3 9 4 2 2 9 6 5 1 3
L101
D154 AK04
C153
Z101 750V 47
R101
5
C154
2.7M 1/2
F101
!
250V T2A C164
0.033
N L
AC IN
!
CN101 GND
6
220-240VAC
50/60Hz
Note:
The components indentified by mark
line with mark
!
7 16
Replace onl y with part number specified.
w w w
.
E
D
!
T151
POWER
TRANSFORMER D251
R154 C152
AU02Z
100K 2 0.01 / 400
S4
P1
R151
150K
R152 L151
150K
D152
C165
R153 R168
EG01C
3300p
150K 10K
S
P2
Q151
D252
IC151
!
FS2KM S3L20U
AN8028
D158
MA4270
S3
+
C252
1000
/ 16
S2B
S2A
D253
D3S4M
+
C253
D155
2200
AU02Z
B1
/ 10
S1
D254
AU02Z
1
S5
*R167
R253
0.47
B2
R166
1K ! S7
PC151
PS2561
S6
D255
AU02Z
!
typ
Ref.No. min
*R156 0.27 0.33
or dotted
!
*R164 270 330
*R165 330 470
are critical for safety.
*R167 1.5K 1.8K
x a o
y
i
4-55
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SLV-E850B/E850UX/E880EG/F900B/F900NP/F900UX/F900VC/F990B/F990NP/F990UX/F990VC
8
G H
R251
10
6
+
C251
47 / 50
Q201
2SB733
R201
L201
1K
10uH
R203
7, 8 Q204
180 / 2
2SC1740
IC201
+
R219
+ 4.7K
REG.
C201
PQ12RD08 C205
220
22 / 50
16
R220
9, 10
PS201 1.6A
!
4.7K
L202
20uH
D256 VR251
PS202 2A
*R261 !
MA2560 5K
11, 12
PC151
R222
R207
!
PS2561 Q Q
R208
220 220
3 7 6 3
220
C261
D203
R263
0.22
RD5.1ES
18K
+
D204
IC251 K 1SS119
*R265
D205
A 1SS119
SHUNT REG.
9, 10
AN1431T R264
+
C254
15K L205 1uH
*R252 47 / 50
13
! L203 1uH
PS251
15
+
C255
C256
L204 1uH
470 / 10 0.1
14
*R254
C210
Q208
0.047
2SD774
max typ max
Ref.No. min
R215
4.7 10 8.2K
0.39 *R252 10
330 *R254 2.2 2.7 3.3
560 *R265
1K 10K 22K
C211
2.2K
0.047
u 1 6 3
.
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2 4
9 9 8
J K L
+
C209
47 / 50
+
CN201
C203
C204
19 AN GND
220 / 16
100 / 16
18
SW 5V
+
R205
17 SW 5V
2.2K
16 UN 38V
15 13V
14 13V
+
R206
13 MTR 12V
1.5K
12 MTR 12V
C206
11 GND
47 / 35 Q205
2SD2394 10 GND
9 POWER CONT 1
8 SW 12V
7 POWER CONT 2
1 5 1 5 0 8 9 2 4
6 D 6 V
+
5 AB GND
L206
4 + F (5.4 V)
+
C207 GND
3 POWER SAVE CONT
22 / 50
2 - 30 V
1 - F (0 V)
C212
0.01
Q207
2SD774
R213
47K
R216
10K Q210
UN4111
R214
47K
Q209
UN4111
Q211
UN4211
m
c o
4-56E
2
9 9
E
TO/FROM
MA-316
BOARD
CN600
(SEE PAGE
9 8 2 9 9
4-16)
SWITCHING REGULATOR
SR826