SLV-E850B/E850UX/E880EG/F900B/F900NP/F900UX/F900VC/F990B/F990NP/F990UX/F990VC
POWER BLOCK SR826 (SWITCHING REGULATOR) SCHEMATIC DIAGRAM
— Ref. No. SR826 Board; 9,000 Series —
4-55
4-56E
SWITCHING REGULATOR
SR826
K
1
2
3
4
5
A
B
C
D
E
G
H
J
6
L
11
10
9
7
6
5
4
3
2
1
CN201
GND
AB GND
- F (0 V)
+ F (5.4 V)
POWER CONT 2
POWER CONT 1
D 6 V
POWER SAVE CONT
- 30 V
+
+
+
+
A
K
SW 12V
GND
MTR 12V
MTR 12V
13V
13V
UN 38V
SW 5V
SW 5V
AN GND
+
+
+
+
+
+
+
+
+
+
L103
C102
0.1/250
C101
0.1/250
C104
1000p
/250
C103
1000p
/250
C108
1000p
/250V
C109
1000p
/250V
C105
1000p
/250V
L102
Z101 750V
R101
2.7M 1/2
F101
250V T2A
AC IN
CN101
*R156
/1W
C151
47 / 400
D151 AK04
AN8028
R162 2.2K
R163 10K
C161
1500p
C162 3300p
C163 3300p
*R164
*R165
D154 AK04
C153
47
C154
1
+
+
C164
0.033
R166
1K
IC151
R154
100K 2
C165
3300p
C152
0.01 / 400
D152
EG01C
Q151
FS2KM
R157 82
D153
1SS1
19
D155
AU02Z
*R167
PC151
PS2561
D251
AU02Z
R251
10
D252
S3L20U
L201
10uH
R201
1K
PQ12RD08
REG.
IC201
C201
220
16
C252
1000
/ 16
Q201
2SB733
C209
47 / 50
C203
220 / 16
C204
100 / 16
R203
180 / 2
R205
2.2K
R206
1.5K
Q204
2SC1740
C206
47 / 35
C207
22 / 50
C205
22 / 50
D253
D3S4M
D256
MA2560
C253
2200
/ 10
*R261
PC151
PS2561
IC251
SHUNT REG.
AN1431T
D254
AU02Z
*R266
C261
0.22
VR251
5K
R263
18K
R264
15K
C202 470 / 10
R207
220
D203
RD5.1ES
D204
1SS119
D205
1SS119
R208
220
R209
220
Q205
2SD2394
PS201 1.6A
PS202 2A
L202
20uH
R210 1K
C208 470 / 10
C254
47 / 50
*R252
D255
AU02Z
C255
470 / 10
L205 1uH
L203 1uH
L204 1uH
Q206
2SC2785
GND
Ref.No.
min
typ
max
*R156
*R164
0.27
0.33
0.39
270
330
330
min
typ
max
*R252
*R254
2.2
10
10
2.7
3.3
*R165
330
470
560
*R265
*R167
2.2K
N
L
P1
P2
S4
T151
POWER
TRANSFORMER
S3
S2B
B1
B2
S1
S7
S6
S5
S2A
220-240VAC
50/60Hz
S
TO/FROM
MA-316
BOARD
CN600
Ref.No.
!
!
!
!
!
!
!
!
!
The components indentified by mark or dotted
line with mark are critical for safety.
Replace onl y with part number specified.
!
!
R169 18K
R158 22
R151
150K
R152
150K
R153
150K
L101
D101-104
1N4005
D101
D102
D103
D104
D156
1N4005
R161 22K
D158
MA4270
R168
10K
L151
+
C251
47 / 50
R253
0.47
PS251
C256
0.1
*R254
*R265
R220
4.7K
R219
4.7K
R222
220
SUB BOARD
MAIN BOARD
POWER BLOCK
(SR826)
1, 2
4, 5
14
15
13
9, 10
11, 12
9, 10
7, 8
6
8
12
13
14
15
16
17
18
19
C210
0.047
C211
0.047
Q207
2SD774
Q210
UN4111
Q209
UN4111
Q208
2SD774
R215
8.2K
Q211
UN4211
R214
47K
R213
47K
R216
10K
C212
0.01
L206
GND
1.8K
1.5K
4.7
1K
10K
22K
!
!
!
!
!
!
!
!
(SEE PAGE
4-16)
E
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9
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2
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8
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5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299