
B
A
D
A
B
C
3
10K
Q374
DTC114TKA146
SWITCHING
2
10
9
8
7
6
5
4
3
1
10
9
7
6
4
3
1
8
5
2
1
2
4
5
6
7
8
9
10
CN503
CN504
2
1
B
A
Q383
2SB621ARSTA
REGULATOR
10K
10K
A
B
B
C
D
A
B
E
-
VP
PCONT
-
B
SUB+B
+B(3)
P.GND
+B(4)
+B(5)
+B(2)
/ TUNER
PCONT
HP SW
DC DET
D.GND
D.GND
FAN
SPCONT
SUB+B
CCH
TW/ SR
TW/ SL
S.W
S.GND
S.GND
MID/ FR
MID/ FL
M
SUB WOOFFER
JK204
C331
0.01
R337
220
C330
16V10
R333
100K
C329
16V10
R332
1K
Q307
2SD2144STA
MUTING
R334
1K
R370
470K
R338
3.3K
C333
50V3.3
R369
150K
CN506
R279
2.7K
To
STABILIZER
CIRCUIT
(H506) on
SCHEMATIC
DIAGRAM
-
18
M
R368 33K
To POWER
CIRCUIT
(CP503) on
SCHEMATIC
DIAGRAM
-
18
L
D202
1SS355TE17
R283 10K
R278
3.3K
R277 12K
D454 RL1N4003N02
R380
68K
R379
220K
D371
DAP202KT146
D373
1SS355TE17
Q354
2SC2412KT96R
SWITCHING
Q354
R361 56K
R363
820K
C355
50V2.2
R362
10K
Q353
2SC2412KT96R
FAN MOTOR DRIVE
R355
5.6K
R353
4.7K
R357
10K
D351
DAP202KT146
R358
56K
R359
18
C353
6.3V100
R356
100
C354
6.3V220
R352
56K
R351
10K
C351
16V33
Q351
KTA12710YTA
FAN MOTOR DRIVE
R354
820K
C352
0.1
Q352
2SC2412KT96R
FAN MOTOR DRIVE
FAN MOTOR
R374
3.3K
Q373
2SC2412KT96R
POWER CONT.
Q375
Q375
2SA1037AKSTX
SWITCHING
R378
1K
R377
10K
R376
4.7K
Q385
DTA114EKA146
STABILIZER
R384
1
R387
1
D456
RL1N4003N02
D385
RL1N4003N02
C382
0.01
R382
1.2K
C384
16V10
R388
82K
R383
4.7K
D386
UDZSTE175R1B
Q384
2SC2412KT96R
REGULATOR
D383
DA204KT146
C386
0.01
R385
4.7K
R366
220K
C383
16V10
R381
1.2K
D381
DA204KT146
C385
0.01
C381
0.01
Q382
2SC2412KT96R
REGULATOR
Q381
2SB1417PQTA
REGULATOR
R386
4.7K
R375
39K
C371
50V4.7
R443
1K
Q202
2SA1037AKSTX
MUTING CONT.
R446
10K
To POWER
CIRCUIT
(CP504) on
SCHEMATIC
DIAGRAM
-
18
L
MAIN CIRCUIT
K
SCHEMATIC DIAGRAM
-
17
L451 10 H
CN351
:CD SIGNAL LINE
:SURROUND/HIGHT SP DRIVE SIGNAL LINE
:SUB WOOFER/FRONT LOW SP DRIVE SIGNAL LINE
:NEGATIVE VOLTAGE LINE
:POSITIVE VOLTAGE LINE
7.7V
-
7.7V
14.8V
14.2V
3.3V
14.8V
-
28.4V
14.2V
-
7.7V
14.8V
-
3V
7.6V
7.7V
-
3V
5V
5V
0V
0.2V
0.8V
0.2V
0V
0V
9V
0V
14.2V
14.2V
13.5V
13.6V
13.6V
14.2V
14.2V
13.5V
4.9V
6.1V
6.1V
4.3V
6.8V
5.1V
4.8V
6V
6V
4.2V
6.8V
5V
-
3V
13.6V
14.2V
14.2V
13.5V
13.6V
14.2V
14.2V
13.5V
0V
-
5.7V
-
5.7V
-
5.7V
-
5.7V
-
5.7V
((0.7V))
-
5.7V
-
5.7V
-
5.7V
-
5.7V
-
5.7V
((1.5V))
5V
5V
5V
5V
5V
((1.5V))
5V
5V
5V
5V
5V
((0.9V))
43
SA-AK78
Summary of Contents for SA-AK78
Page 6: ......
Page 7: ...7 SA AK78 ...
Page 34: ...34 SA AK78 ...
Page 57: ...16 Wiring Connection Diagram 57 SA AK78 ...
Page 58: ...58 SA AK78 ...
Page 59: ...17 Troubleshooting Guide 59 SA AK78 ...
Page 61: ...18 1 1 Deck Mechanism Parts Location 18 1 Mecanismo do Deck Montado RD JMD034 Z 61 SA AK78 ...
Page 62: ...62 SA AK78 ...
Page 64: ...18 2 CD Loading Mechanism RD DAC024 Z 18 2 1 CD Loading Mechanism Parts Location 64 SA AK78 ...
Page 65: ......
Page 67: ...18 3 1 Cabinet Parts Location 18 3 Cabinet 67 SA AK78 ...
Page 68: ...68 SA AK78 ...
Page 69: ......