Power Circuit - Panasonic SA-PM31P Service Manual

17.5. Power Circuit

SCHEMATIC DIAGRAM-11
POWER CIRCUIT
R790
2.7K
C733
50V0.47
CP501
T10V
1
R_IN
2
TGND
3
L_IN
4
+9V
5
TO
SGND
6
MAIN CIRCUIT
DGND
(CN301) ON
7
SW5V
SCHEMATIC
8
M10V
DIAGRAM-6
9
FAN1
10
FAN2
11
7.5V
12
PGND
13
CP502
7.5V
1
MUTEA
2
TO
MUTEH
3
MAIN CIRCUIT
DCDET
4
(CN302) ON
HP_L
5
SCHEMATIC
HPGND
DIAGRAM-6
6
HP_R
7
T10V
C734 R791
50V0.47 2.7K
+9V
SW5V
M10V
FAN1
FAN2
7.5V
7.5V
MUTEH
DCDET
Q704
R712
1K
Q726
R798
1K
R799
1K
Q725
Q725,Q726
B1AAGC000006
MUTE
: -B SIGNAL LINE
: +B SIGNAL LINE : MAIN SIGNAL LINE
R778
15K
KTC3199GRTA
50V0.47
R775
15K
Q721
R713 C705 R726
56K 10
27K
Q704
KRA102MTA
Q718,Q719
MUTTING CONTROL
B1AAGC000006
MUTTING CONTROL
81
D708
R776
MA2C16500E
1K
C738 R774
16V10
100K
R772
4.7K
Q720
R758
AGC
R752 2.2K
100K
C750
0.01
R720
R766 82K
8.2K
C742
C746 C748
100P 27P
4 3 2 1
C744
0.01
IC501
C0AABB000125
OP AMP IC
5 6 7 8
R767
C745 C747
8.2K
100P 27P
R721
R727
82K
100K
C749
0.01
Q721
C743
KTC3199GRTA
0.01
R753
AGC
2.2K
D709
R773
MA2C16500E
1K
R759
R771
C771
4.7K
16V10 100K
R748
1.5K
R750
3.3K
Q718
R751
3.3K
Q719
R749
1.5K
SA-PM31P / SA-PM31PC
C726
16V10
C710
1000
C709
1000
C727
16V10
R754
22
C728
3300P
R755
22