Kenwood KAC-8402, Service Manual

Page: 9 / 18

KAC-8402/8452
9
O N M L K
1
2
3
4
5
6
7
10K
K
10K
10K
10K
10K
14.2V
3.6V
14.2V
12V
0V
0V
5.0V
2.4V
5.0V
0V
14.2V
-15.6V
IC4
A
KAC-8402/8452 (1/2)
Q616
Q618
Q615
Q617
Q604
Q606
Q605
Q602
Q603
D616
D603 D605
D606 D607
D604
CN1
4
28
D7
Q6
Q14
Q12
D8
Q3
Q13
Q10
Q11
Q9
D10
D9
P1
OUTPUT A
SPEAKER
∗
J3
D1 D2
∗
J8
POP
NOISE-MUTE
2/2
CN1
X08-
(X09-5840-xx)
B LINE
B LINE
SIGNAL LINE
GND LINE
62,463,601-603,605,609,610,613,615,616
52,203-206,251,260,261,403-405,408,457,
1,102,229,253-255,295,301,302,430,
61,495,617,618
14
07,300
LM1MA142WK-G
RM4ZLF-J1NF :
UMZ6.8N
02DZ15F-Y
02DZ10F-Y
02DZ6.8F-Y
02DZ16F-Y
FCH10A20
1SS133
:
:
:
:
:
:
:
:
OUTPUT B
SPEAKER
1SS355 :
FRH10A20 :
DRV.
MUTE
DC/DC CONV.
TP62
23
TP147
TP168
TP169
TP170
TP171
TP173
TP174
TP145
1u50 C604
10K
R665
15K
R666
27K
R669
5.6K
R670
3.6K
3.9K
R616
4.7K
R607
10u50
C602
10u50
C603
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
ISO-BL
B-ISO-GND-1
ISO-BR
ISO-AR
A-ISO-GND-1
ISO-AL
AMP-BL
B-ISO-GND-2
AMP-BR
AMP-AR
A-ISO-GND-2
AMP-AL
+15V
-15V
NC
LOGO-LED
D-GND
TP16
TP15
TP14
TP17
TP13
TP9
TP8
TP12
TP11
TP10
TP7
TP6
TP5
TP4
TP3
TP1
TP2
150K
R641
TH605
10K
R667
10K
R664
10K
R663
22
R662
22
R661
C617 0.1
R671 56K
15K
R668
10K
R606
3.3K
R608
33K
R609
30K
R610
R612
1.5K
R613
R611 3.6K
3.9K
R615
3.3K
R614
33K
R605
CT
VCC
R14
1.5K
R8
4.7K
TP159
R10
15
R12
56
R20 91K
∗
R24
C16
10u50
TP157
C1
GND
RT
8
7
6
E1
E2
C2
9
10
11
R7
4.7K
2.2u50
R9
R13
TP160
15
1.5K
TP138
R11
56
TP140
C13
TP142
R17
10K
R18
330K
1K
R21
10K
R19 10K R15 27K
R23
C17
∗
R22
1000P TP156
C15 R25
100K
22u25
OUTCTRL
FBACK
DTC
IN1-
IN1+
4
3
2
1
5
REF
IN2-
IN2+
13
14
15
16
12
AR+
AR-
AL-
AL+
P-CON
1
2
3
4
5
GND
BATT
10u 25V
C1
6
7
∗
L4
∗
L1
∗
L2
TP54
TP55
4
3
2
1 BR+
BR-
BL-
BL+
R271 10
1/2W
C251
0.047
C250
0.047 1/2W
R270 10
AL+
AR-
C451
0.047
C450
0.047
BR-
BL+
R471 10
R470 10
1/2W
1/2W
TP49
TP50
TP51
TP52
TP45
TP46
TP47
TP48
TP53
TP139
TP141
TP144
1u50
C14
+
R16 27K
2
3
1
TP143
47K
R622
47K
R623
47K
R620
47K
R621
3
1
2
12
10
7
2
6
1
5
9
4
3
TP61
10u50
C616
100K
R659
5.1K
R658
150K
R660
+15V
+15V
+15V
-15V
-15V
-B
-15V
-15V
+14.4V
+14.4V
+14.4V
VCC
VCC
VCC VCC
VCC
E63-0927-05
E63-0922-05
KAC-8452(E)
KAC-8452(M)
KAC-8452(K)
MODEL NAME
KAC-8402(K)
KAC-8452(J)
No.
UNIT
0-10
0-11
C922
YES
NO
L1,
2
NO
YES
E40-0838-05
E70-0843-05
J1 J3
E40-0844-05
E40-0840-05
J8
10K
R22
6.8K
NO
YES
L4
Q3,
YES
NO
6
15K
16K
R24
TP158
TP56
+
+
+
+
+
+
X09-5840-1x A/2 (3/3)
B
C
E
B
E C
2SA817A-F
2SA992-A
2SC1627A-F
2SC1845-A
2SA1576A
2SC3419
2SB1375-F
2SD2012-F
2SC4081
DTA114EUA
DTC114EUA
CAUTION : For continued safety, replace safety
critical components only with manufacturer’s rec-
ommended parts (refer to parts list).
Indicates safety critical components. To reduce
the risk of electric shock, leakage-current or resis-
tance measurements shall be carried out (exposed
parts are acceptably insulated from the supply cir-
cuit) before the appliance is returned to the cus-
tomer.
• DC voltages are as measured with a high imped-
ance voltmeter. Values may vary slightly due to
variations between individual instruments or/and
units.
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