Panasonic SA-XR700EG Service Manual page 99

SCHEMATIC DIAGRAM - 23
POWER CIRCUIT
I1
I2
I3
D711
B0HBSM000043
Q704
B1ADCF000001
TO POWER
SWITCH
SECTION (2/3)
1 2
D713-D714
B0ACCK000005
I4
D713
R723 R713
150
100
D714
Q704
+SENSE
R761 C762 C761 R714
33K 50V2.2 50V10 47
R729
22K
R762
R715
1.5K
13
REF 1
IC702 C720
1000P
C0EAS0000032
COLLECTOR 2
VOLTAGE DETECTOR
GND 3
-SENSE
IC733
C0CBACC00052
REGULATOR
R724
VOUT VSS 100
VIN L741
1 2 3 G0A200D00002
I5
D745
B0ACCK000005
LB751~LB755
L742 J0JBC0000014
G0A200D00002
1 2 3 4 5 6 7
P903
TO
PANEL CIRCUIT
(JW903) IN
SCHEMATIC
DIAGRAM-18
27 28 29
: -B SIGNAL LINE : +B SIGNAL LINE
L705
G0C101KA0029
C725
250V4.7
Q723
R726
3.3K
Q723
B1AAGC000006
R727
SWITCH
1K
3
R707
C765
100K
0.01
C715
0.01
T701
ETS48AA176AD
SWITCHING TRANSFORMER
9
10
11 8
Q701
12
B1BACF000026
13 7
D707 REGULATOR
B0BA03700015
D705,D706
6
B0HAJL000001
D710
Q701
14
B0HAJL000001 D705
15 5
16 4 R710
R711
10K R709
22
2.2K
2
17
C713 D706
D708
1000P
18 1
C714 C712
F1BAF1020020 220P
D709
1000P
C714
PC701
1 4
D708
B0BA01800019
R712
D709
PC701
2.7K B0ACCK000005
B3QAZ0000062
2 3
D745
R759
1K R725
6.8
C898
16V47
C899
16V47
1 2 3 4 5 6 7
8 JW401
TO
INPUT CIRCUIT
(P401) IN
SCHEMATIC
DIAGRAM-17
30 31 32
2
1
D715
B0EDKT000009
3 4
B0ACCK000005
D701
B0FFAR000001
TH701 1 2 3 4
D4CAC8R00002
3
C706
C708
C706 1
C707
0.01
R706
ECQU2A104MLC
400V180
100K 0.1
RY721
K6B1AEA00003
3
D702
B0ZAZ0000052
1 2
R702
68K
R703
680
1 OCF/FB
2 S
LB704
3 D
C710 R704 C709
4 VIN
820P
0.68 470P
5 GND
LB704 D704 D703
J0JKB0000020 B0JAME000025 B0BA03000015
IC701
C5HABZZ00125
SWITCHING IC
+15V
C721 0.1
R763
1.5K
C763
5 6 7 8
50V4.7
C764 R764
0.01 6.8K IC703
C0ABBA000168
OP AMP IC
4 3 2 1
R719
47K
R717 39
VOL_CONT
R730
R750 4.7K
R720
C723
47K
3.3K
1000P
Q705
R798
C759
50V1 47K
Q705
B1ADCF000001
SWITCH
33 34 35
99
D728
C705
4 F1BAF1020020
1000P
2
C703
F1BAF471A013
470P
C704
F1BAF471A013
R752
470P
250V 4A
470K
3 4 4 3 R751 C701
C702
470K ZA702 ZA701
DZ701
2 1 2 1
DZ701 C701
L703 L702
ECQU2A104MLC
ELF21N015E ELF21N015E ERZV10V511CS
Q702, Q703
0.1
B1ABCF000078
SWITCH C702
ECQU2A104MLC
0.1
Q703 Q702
R722 R721
2.5M 2.5M
SA-XR700EG POWER CIRCUIT
3
/
3
36 37
SA-XR700EG
H
G
F
E
D
C
ZJ701
SNE1004-2
F1
P701
AC IN
3 4
230-240V
50Hz
2 1
L701
ELF18N067E
B
A
38 39