Text preview for : schpower.pdf part of Panasonic SA-AK88 Schematic for SA-AK88 Models
Back to : SA-AK88gc.rar | Home
SCHEMATIC DIAGRAM-22
:CD-DA/V-CD (AUDIO) SIGNAL LINE
:POSITIVE VOLTAGE LINE :SURROUND SP. DRIVE SIGNAL LINE
POWER CIRCUIT :NEGATIVE VOLTAGE LINE :CENTER SP. DRIVE SIGNAL LINE
IC500
RSN311W64A-P
POWER AMP(HIGH,MID,LOW)
26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
0V 0V 0V 0V -28.5V 60.2V 0V 0V -30V 29.5V -0.2V 0V 0V 0.2V 0V -29.7V 29.1V 0V -60.7V 60V 0V 0V
470P
470P
0.01
0.01
470K
RK306LFU1
C539 0.047
RK306LFU1
D519
R568
D517
22K
C513
C521
C503
C511
R546
R552 2.2
R502 R553 2.2
C500 470P 4.7K R505 2.7K R532 56K
A
C526 15P R555 120K
C510 470P R501 4.7K
R506 2.7K R533 56K
B
C527 15P R560 120K
C514 470P R534 56K
C
C528 15P R557 120K
C508 470P R535 56K
D
C529 15P R558 150K
R536 56K
E
C530 22P R556 220K
R504
1.5K
R537 56K
F
C531 22P R559 180K
R503
1.5K
R516
R509
R512
R520
2.7K
2.7K
2.7K
2.7K
C502
0.1
C501
R507 R513
0.1
4.7K 4.7K
R508 R517
4.7K 4.7K 14.8V
5V
Q505
50V3.3
C551
50V3.3
C548
5V 0V
0V
Q503
16V10
C547
R561
10K
E D C A B
Q503 Q505
C509
2SC2785FTA KTC3199GRTA
0.01 OVER LOAD DET. OVER LOAD DET.
CP501
GND1 1
+B(3) 2
H.Lch IN 3 A
H.Rch IN 4 B
LOW CH 5 C
TO GND1 6
MAIN (CONTROL) S CH 7 D
CIRCUIT(CN300) C CH 8 E Q510
ON SCHEMATIC /CD 9 B 2SD2144STA
DIAGRAM-21 SWITCHING
DC DET 10
R554
P.CONT 11 A 1K 0.2V
0V
HP SW 12
R562
8.2K
CP500 C554
P.GND 1 10V470
D.GND 2
+B(4) 3
-B(1) 4
TO GND1 5 D501 D502 D503
MAIN (CONTROL) 7.7V
6 1D3E RL1N4003S-P RL1N4003S-P
CIRCUIT(CN301) +B(1) -7.9V
7
ON SCHEMATIC +B(2) 8 3.3V
DIAGRAM-21 +B(6) 9 5V
-VP 10 -31V
LED9V 11 8.6V
+B(5) 12 10.4V
SCHEMATIC DIAGRAM-23
:CD-DA/V-CD (AUDIO) SIGNAL LINE
:POSITIVE VOLTAGE LINE :SURROUND SP. DRIVE SIGNAL LINE
:NEGATIVE VOLTAGE LINE :CENTER SP. DRIVE SIGNAL LINE
IC501
STK470-040
REGULATOR JK502
D
L ch
LOW
(6 )
C
R583 C560 C559
R586 C566 C565
0.1
0.1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 R ch
14.5V 9.8V 10.4V 5V -27.8V -8.5V -7.9V 7.7V 14.8V 16.0V 28.0V 60V 29.2V -29.7V -60.7V
0.1
0.1
R527
1.5K
C544 C552
0.01 0.01
MTZJ16BTA
A B
SPEAKERS
10
10
R601A
R591
1.5K
50V47
16V47
4.7K
R590 R599 JK503
MTZJ10BTA
1.5K 4.7K
D507
35V100
R571
50V100
C577
L ch
D508
C553
C534
C575
39
R565
RSFMB40KT-L A HIGH
(6 )
D524 1D3E
C571 35V3300 R ch
B
R584 C562 C561
R587 C568 C567
0.1
0.1
0.1
0.1
D526 1D3E
C574 35V3300
10
10
MTZJ8R2BTA
D506
JK504
E CENTER
SPEAKER
(8 )
1D3E
1D3E
F L ch
C569
0.1
SURROUND
D520
D521
Q515 SPEAKERS(4 )
C570
0.1
2SC3940AQSTA
R577
2.2
REGULATOR R ch
R585 C564 C563
0.1
14.9V 60V
R588
10
R594
3.3K
0.1
15.1V
C578
R572
0.01
2.2
R574
2.7K
10
R593
820K D528
MTZJ15CTA
D528
RVD1SS133TA
D522
A
C549 R567
100V10 100K
B
C573
5600
C572
5600
Q501
2SB1417PQTA
REGULATOR R529 D514 C550
-31V -38.2V 4.7 1D3E 35V100
C583
Q519 A B 0.22 E500
C543
1D3E
D516
2SB1417PQT
C516
R524
100
4.7K
0.01
POWER SUPPLY -31.6V
R521
3.3V 10.4V 220
MTZJ12BTA
MTZJ30BTA
100V10
C533
0.01
C512
R563
C523
50V1
D509
10K
D504
9.7V
Q516 R576 R575
47 47 B A
KTC3199GRTA
POWER SUPPLY CONT. R551 RL501
9.7V 2.2K
3.2V
5 2 1
MTZJ12BTA
R569
3.9K
D512 2.6V
D523
RVD1SS133TA
Q512
Q509 2SC1740SSTA
R598
470
KRC110MTA RELAY DRIVE 6 4 3
SWITCHING R578 C584
3.2V 0V
D518 3.3K 0.022
RVD1SS133TA H501
0.2V 0.8V
1
10V33
C546
2
B A 3
4
5
6
7
8
7.7V 9
-7.9V 10
3.3V 11
5V 12
C558
2200
-31V 13
10.4V
SCHEMATIC DIAGRAM-24
AC TRANSFORMER CIRCUIT SUB-TRANS CIRCUIT
Q976
2SD2144STA
R985 R980 R981 POWER SUPPLY D979
1D3E T502
22 22 22 10.4V 27.1V W500 CN500
1 1
2 2
C976
1D3E
1000
D978
8.9V
R982 C979 3 3
Q977 820K 1000P
2SD2037ETA
R983
Z501
1.2K
POWER SUPPLY D981 C978
5.8V 1D3E 0.01
10.4V
1D3E
D983
C980
C977
R984
1D3E
1000
D980
JK500
0.01
1.5K
L500
6.5V
D984 F1
1SS291TA C975 T3.15A
W1A
35V4.7
Q978
MTZJ7R5ATA
10V47
C981
KRC102MTA AC IN
D982
R977
10K
SWITCHING D977 (AC110/127/
RVD1SS133TA 220/230-240V
2.8V R976
0V 10K 50/60Hz)
RL502
R986 3 4
15 F2
CN502 T1.6A
SYNC 1
TO FL1 2 A
1 2
PANEL CIRCUIT FL2 3 B
(H603) R978
SYS6V 4 1K 0.8V 0V
ON SCHEMATIC ECONO 5
DIAGRAM-15 GND 6
Q975
2SC1740SSTA
D513 R979
RELAY DRIVE VOLTAGE
KBPZ02G RSFMB40KT-L
SELECTOR
CIRCUIT
T501
CN501 A
1 A S501
AC23.0V
C540
2 (VOLT ADJ)
0.1
B
3 B 230-240V 220V
4 C
C AC23.0V 4 110V
5 W9 127V 3 5
6 D
D 2 6
7 W5
8 110V 1 7 127V
AC10.8V 8
9 W7
10 AC10.8V 220V
W10 230-240V
11 E
12 E
W8
13 B
AC10.8V
W6
A