3
2
1
2
1
3
4
5
6
7
8
E
D
C
B
A
Q608
2SB621ARSTA
POWER SUPPLY
A
B
2
1
4
5
7
8
3
6
FL CIRCUIT
F
E
D
C
B
A
9
10
11
12
13
14
15
CD
TUNER
T
APE
AUX
6ch LED
CLK
D
ATA
GND
CD1
CD2
CD3
CD4
CD5
T
.LED
Vcc
LED CTL
8
7
6
5
4
3
2
1
16
D606
(6ch INPUT)
D605 (AUX)
D604 (T
APE)
D603
(TUNER)
D602 (CD)
R602
330
R603
330
R604
330
R605
330
R606
330
R611
1K
D607
SLR325DCT31
(LIGHT)
R607
390
C603
0.1
R612
100
B
A
10
1
3 2
4
5
6
7
8
9
10
1
3 2
4
5
6
7
8
9
9
10
11
12
13
14
15
NC
D.EQ
S.ST
SSS
DPL
CLK
D
ATA
GND
C.FCS2
C.FCS1
V
.SURR1
VMR1
3D V
.S
S.POS1
Vcc
S.WOOF
8
7
6
5
4
3
2
1
16
F
E
D
C
A B C D E F
OPERATION(1) CIRCUIT
E
D637
(S.WOOF)
D631
(S.POSI)
D629
(3D V
.S)
D627 (VMR)
D625
(V
.SURR1)
D626
(C.FCS1)
D628
(C.FCS2)
R942
680
C602
100P
C601
100P
R610
1K
R945
1K
C651
100P
C652
100P
R946
1K
R630
47K
R958
100
C653
0.1
R629
47K
CN602A
R623
1K
R624
1K
R625
1.2K
R626
1.8K
R628
2.7K
S618
( )
R632
4.7K
S619
( )
R633
6.8K
S620
( )
R693
10K
S612
( )
S61
1
(RANDOM)
S613
(DISPLA
Y)
S614
(S.WOOFER)
S615
(3D AI)
D602
-
606
LNJ301MPUJAD
CN602B
VR602
(JOG PLUSE
ENCODER)
R960
1K
R961
1K
R962
1.2K
R963
1.8K
R964
2.2K
R965
2.7K
R966
4.7K
R967
6.8K
R968
10K
D630
(D.EQ)
D632
(HIGH)
D623
(MID)
D622
(LOW)
R950
330
R951
330
R949
330
R948
330
R971
1K
R972A
1K
R973A
1.2K
R974
1.8K
R975
2.2K
S656
( DECK1 OPEN)
S655
(T
APE EDIT)
S653
( REC ST
OP)
S652
(REV MODE)
S651
( DECK2 OPEN)
S640
( / )
S641
( )
S642
( )
S643
( )
S644
( / )
S645
(LOW)
S646
(MID)
S647
(HIGH)
S648
(TRICONT)
S649
(SET)
D622,623,630,632
LNJ301MPUJAD
R637
22K
R636
1.5K
IC603
BU2090AF
-
E2
LED DRIVE
IC604
BU2090AF
-
E2
LED DRIVE
D620
LNJ801TPSJAD
(TIMER)
H603A
R959
330
R957
270
R956
270
R955
270
R954
270
R953A
270
R952A
270
D625
-
629,631
SLR325DCT31
D637
SLR325MCT31W
S609
(CLOCK/ TIMER)
S608
( PLA
Y/ REC)
S607
(6ch DISCRETE
INPUT)
S606
(AUX 1/ 2)
S605
(T
APE DECK 1/ 2)
S604
(TUNER/ BAND)
S603
(CD)
S602
(ECO)
S601
(POWER)
R620
6.8K
R619
4.7K
R618
2.7K
R617
2.2K
R616
1.8K
R615
1.2K
R614
1K
R613
1K
H603B
R921
1K
S621
(CD MANAGER)
S622
(CD1)
S623
(CD1 )
S624
(CD2)
S625
(CD2 )
S626
(CD3)
S627
(CD3 )
S628
(CD4)
S629
(CD4 )
S630
(CD5)
S631
(CD5 )
R922
1K
R923
1.2K
R924
1.8K
R925
2.2K
R926
2.7K
R927
4.7K
R928
6.8K
R929
10K
R930
22K
R932
330
R933
330
R934
330
R935
330
R936
330
D615
(DISC5)
D616
(DISC4)
D617
(DISC3)
D618
(DISC2)
D619
(DISC1)
D615
-
619
SLR325MCT31W
SCHEMATIC DIAGRAM
-
7
OPERATION(2) CIRCUIT
G
:MIC SIGNAL LINE
S616
(KARAOKE EFECT)
R627
2.2K
S617
(KARA
OKE)
1
4
5
3
6
2
7
1
4
5
3
6
2
7
JK601
MIC1
JK602
MIC2
L609
10 H
•
R982
680
C671
1000P
R983
680
L608
10 H
•
C
D
E
F
G
H
I
J
6.8V
6.8V
5V
6.8V
6.1V
6.8V
6.8V
5V
0.2V
4.2V
5.4V
5.4V
5.4V
5.4V
0.4V
0.4V
5.4V
5.4V
5.4V
5.4V
0V
0V
5.4V
5.4V
5.4V
0.4V
0.4V
5.4V
5.4V
5.4V
0.4V
5V
5.3V
5.3V
5.3V
5.3V
5.3V
5.3V
5.3V
5.4V
5.3V
5.3V
5.3V
0V
0V
0.4V
0.4V
0.4V
:POSITIVE VOLTAGE LINE
33
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: ......