Ac Trans Circuit; Voltage Selector Circuit; Sub-Transformer Circuit - Panasonic SA-AK18 Service Manual
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Also See for SA-AK18:
- Service manual (120 pages) ,
- Wiring diagrams (40 pages) ,
- Operating instructions manual (32 pages)
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SA-AK18
TO
POWER
CIRCUIT
(H500/W500)
ON SCHEMATIC
DIAGRAM-13
TO
PANEL
CIRCUIT
(H601/W601)
ON SCHEMATIC
DIAGRAM-10
TO
POWER CIRCUIT
(H500/W500)
ON SCHEMATIC
DIAGRAM-13
TO
PANEL CIRCUIT
(H601/W601)
ON SCHEMATIC
DIAGRAM-11
SCHEMATIC DIAGRAM-14
AC TRANS CIRCUIT
10.4V
R981
R985
((10.4V))
18
22
<10.4V>
R980
R982
D978
15
5.8V
8.8V
820K
1D3E
((5.8V))
((8.2V))
<5.8V>
<8.8V>
C980
6.4V
0.01
((6.4V))
<6.4V>
D984
C981
Q977
1SS291TA
10V47
CN501
1
2
RTP1N3E013-V
3
R979
1
4
2
5
3
6
7
4
8
5
R988
6
7
8
CN502
R978
6
ECONO
5
SYS6V
4
FL2
3
2.9V
FL1
2
((2.9V))
SYNC
<2.9V>
1
0V
((0V))
Q978
<0V>
KRC102MTA
SWITCHING
AC TRANS CIRCUIT
R980
R985
18
22
R981
D981
5.8V
D978
8.8V
18
1D3E
((5.8V))
((8.2V))
1D3E
<5.8V>
<8.8V>
C980
R984
6.4V
0.01
150
((6.4V))
<6.4V>
C981
Q977
25V22
MTZJ6R8BTA
CN501
1
2
3
R979
4
1
5
2
6
3
7
8
4
R988
5
6
7
8
CN502
R978
6
ECONO
5
SYS6V
4
FL2
3
2.9V
FL1
((2.9V))
2
SYNC
<2.9V>
1
0V
Q978
((0V))
KRC102MTA
<0V>
SWITCHING
: +B Line
: -B Line
(FOR GC ONLY)
28V
Q976
Q976
((28V))
<28V>
2SD2144STA
REGULATOR
C979
1000P
R983
D979
Q977
1.2K
1D3E
2SC3940AQSTA
11.2V ((11.2V))
REGULATOR
<11.2V>
D981
D983
R984
1D3E
1D3E
1.5K
C978
0.01
C977
D982
16V1000P
D980
MTZJ7R5ATA
1D3E
R986
D977
15
RVD1SS133TA
3
4
T501
1
2
9
RL502
10
RSY0056M-C
11
12
13
14
15
0.1V
((0.1V))
<0.1V>
0.7V
((0.7V))
1K
<0.7V>
Q975
0V
((0V))
<0V>
Q978
C975
R976
35V4.7
10K
0.3V
((0.3V))
R977
<0.3V>
10K
Q975
2SC1740SSTA
RELAY DRIVE
(ECON MODE)
(FOR GN ONLY)
R983
D985
D979
Q977
2.2K
1D3E
1D3E
2SC3940AQSTA
C978
REGULATOR
0.01
D982
C984
D986
D980
16V1000P
1D3E
1D3E
D977
RVD1SS133TA
4
3
T501
RTP2N3B009
1
2
9
RL502
RSY0040M-0
10
11
12
0.1V
((0.1V))
<0.1V>
0.7V
((0.7V))
1K
<0.7V>
Q975
0V
((0V))
Q978
<0V>
R976
10K
0.3V
((0.3V))
Q975
<0.3V>
2SC1740SSTA
RELAY DRIVE
(ECON MODE)
58
VOLTAGE SELECTOR
CIRCUIT
(FOR GC ONLY)
W10
5
W9
W9
240
W5
127
4
W7
110
W8
220
W10
3
240
W8
W3
2
W7
W1
S501
RSR4B007S-Q
W6
PL1
FC3
FC4
F2 T1.25A 250V
W1
FC2
FC1
F1
W500
CN500
Z501
T2.5A 250V
1
1
3
1
2
2
4
3
3
5
2
T502
RTP1H3E001
SUB-TRANSFORMER
CIRCUIT
(FOR GC ONLY)
SUB-TRANSFORMER
CIRCUIT
(FOR GN ONLY)
W1
W1
FC2
FC1
F1
W2
W2
T1.0A 250V
Z501
T502
W500
RTP1I3E002-V
1
1
1
3
2
2
4
3
3
5
2
6
W4
7
220
W5
110
127
8
1
JK500
AC110/127/220/
230-240V
50/60Hz
JK500
AC 230-240V
50Hz
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