Panasonic SA-XR57E Service Manual page 90

SA-XR57E / SA-XR57EB / SA-XR57EG
SCHEMATIC DIAGRAM - 20
POWER CIRCUIT
R723 R713
150
100
Q704
+SENSE
R761 C762 C761 R714
33K 50V2.2 50V10 47
R762
R715
1.5K
13
1
IC702
C720
C0EAS0000032 1000P
IC702
2
VOLTAGE DETECTOR
GND 3
-SENSE
IC733
C0CBACC00052
REGULATOR
VOUT VSS VIN
L741
1 2 3 G0A200D00002
LB751~LB755
L742
J0JBC0000014
G0A200D00002
1 2 3 4 5 6 7
P903
TO
PANEL CIRCUIT
(JW903) ON
SCHEMATIC
DIAGRAM-16
: +B SIGNAL LINE : -B SIGNAL LINE
G0C101KA0029
C725
250V2.2
R726
3.3K
D711
B0HBSM000043
R727
1K
2 3
1
D713-D714
B0ACCK000005
C765
0.01
D713
D714
C715
0.01
T701
ETS48AA176AD
10 9
11 8
12
13 7
D707
B0BA03700015
R729
6
22K D710
14 Q701
B0HAJL000001
15 5
16 4 R710
R711
10K
22
17 2
C713
Q704
1000P
18
1
B1ADCF000001
SWITCH
C714
1000P
PC701
1 4
R712
PC701
2.7K
B3QAZ0000062
R724
2 3
100
R725
6.8
C898
16V47
C899
16V47
1 2 3 4 5 6 7
8
JW401
TO
INPUT CIRCUIT
(P401) ON
SCHEMATIC
DIAGRAM-14
L705
2
1
D715
B0EDKT000009
3 4
Q723
D701
Q723
B0FFAR000001
B1AAGC000006
SWITCH
TH701 1 2
D4CAC8R00002
C706
C708 0.1
R707
C707
100K 0.01
R706
400V180
100K
3
D702
B0ZAZ0000052
1 2
Q701
B1BACF000026
REGULATOR
D705,D706
B0HAJL000001
D705
R703
680
R709
2.2K
D706
D708
LB704
C712
C710 R704 C709
220P
D709
820P
0.68 470P
LB704 D704
J0JKB0000020 B0JAME000025
D708
B0BA01800019
D709
B0ACCK000005
+15V
R763
1.5K
C763
50V4.7
C764 R764
0.01 6.8K
C0ABBA000168
R717 39
VOL_CONT
R730
R750 4.7K
47K
Q705
R798
C759
50V1 47K
Q705
B1ADCF000001
SWITCH
90
D728
B0ACCK000005
3 4
C705
3 4 1000P
1 2
RY721
K6B1AEA00003
R702
68K
1 OCF/FB
2 S
3 D
4 VIN
5 GND
D703
B0BA03000015
IC701
C5HABZZ00125
SWITCHING IC
C704
470P
C721 0.1
C703
470P
5 6 7 8
3 4 4
C702
0.1
IC703
2 1 2
OP AMP IC L703
L702
ELF21N015E ELF21N015E
Q702, Q703
B1ABCF000078
SWITCH
4 3 2 1
R719
47K
Q703 Q702
R720
C723
3.3K
1000P
R722 R721
2.5M 2.5M
3
SA-XR57E/EB/EG POWER CIRCUIT
/
3
ZJ701
SNE1004-2
F1
R752
P701
250V 4A
470K
3 R751 C701 3 4 AC IN
ZA702 ZA701
DZ701 470K 0.1
230-240V 50Hz
1 2 1
L701
ELF18N067E
DZ701
ERZV10V511CS