Kenwood KDC-CX85 Service Manual page 11

A B
(X13-9790-00)
1
IC1 : UPD78058GCB82T
IC2 : PST9137NR
Q1,2,7,8 : DTC124EK
Q3,4 : DTB123YK
Q5,6 : 2SC2412K
D1-6 : MA3056WA
D7 : DAP202K
D8-10,15 : DAN202K
D11 : MA3062-L
D12,13 : MA3056-M
D14 : DA204K
SIGNAL LINE
GND LINE
D14
2 B LINE
S1
OFF
AUX SW
ON
J1,2
1 5 9
2 6 10
13
3 7 11
4 8 12
3 R41
10K
J1 J2
1 REQH0 REQH2
2 GND GND
3 BU+14V BU+14V
Q5,6
4 CHCON CHCON02
5 CH MUTE CH MUTE2 CH-CON SW
6 AGND AGND2
7 CH RST CH RST2
8 Rch Rch2
REQC0 REQC2
9
R32
D11
10 DATAC0 DATAC2 2.2K
11 DATAH0 DATAH2
12 Lch Lch2
13 HCLK0 HCLK2
4
R10 100
D4
D8
R12 100
to H.U
J1
R15 100
1 5 9
R14 100
2 6 10
R16 100
13
R13 100
3 7 11
5
4 8 12
R9 100
D5 D6
D7
R11
100
R2 100
to CH2
R4 100
6
J2
R7 100
1 5 9
R6 100
2 6 10
R8 100
13
R5 100
3 7 11
R3 100
4 8 12
R1 100
D1 D2 D3
7
C D
RESET SW
5.0V 4
Q8
R47
R46
10K
22K 100K
5.0V 5
22K
IC2
RESET IC
Q7
MOMENTARY
POWER
DOWN SW
0V 61 5.0V
61 REQC2
0V 62
BUDET
Q7
D13
R48 22K
18K
22K
0V
R45
1K
63
AUX SW
64
64 REQH0
R36
100
65
65 REQC1
R40
1K 0V 66
CHCON1
R28
1K
Q6 5.0V 67
67 COMMSW
R42
5.0V 68
VDD
1K
69 5V
X2
0V
70 4V
X1
1V
X1 4.19MHz 0V 71
IC
72 0V
R30
1K 5.0V 73
CHCON2
5.0V 74
R31 Q5
AVDD
1K
0V 75
AVREF0
76
R27
77 0V
100K 78
4 79
80
64
11
14
12
13
11
K4 K2
4 L R
CH/AUX
7
15
K3 K1
CH1/CH2
L R
61
16
18
17
20
E F
3
2
1
40
39
38
37
D15
36
35
34
33 0V
VSS
32
31
C5
47u6.3
30
+
29
C3
28
0.01 19
27
26
IC1
25
11
u-COM
24
9
8
10
65
6
R23
23 0V 100
MSTOP
22 0V
RELAY2 22 67
21 0V
RELAY1 21
5.0V 0V
5.0V
5.0V
20
D10 Q4
Q2
22K
21
22K
D9 Q3
Q1
22K
22
22K
Q1-4
RELAY DRIVE
G H
2SB1565
DTA114EK DTA124EK
DTA143EK DTB123YK
DTC124EK 2SA1362
2SC2412K 2SD2114K
CN1
20 BU14V
19 BU14V
18 RESET
17 Rch1
16 AGND1
2SB1188
15 Lch1 X32-
CN1
14 CH CON01
13 GND
2/2
12 GND
11 CH MUTE1
A
10 DATAH1
9 DATAC1
8 HCLK1
NJM4565MD
7 REQC1
6 REQH1 NJM5532MD
5 MGND
4 MGND
3 +5V
2 MSTOP
1 COMMSW
DAN202K
TA78L05F
CN2
AGND
4 4
Lch+
L
3 3
AUX
AGND
2 2
Rch+
R
1 1
CAUTION : For continued safety, replace safety critical components only with manufacturer's
recommended parts (refer to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or
!
resistance measurements shall be carried out (exposed parts are acceptably insulated from the
supply circuit) before the appliance is returned to the customer.
• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to
variations between individual instruments or/and units.
KDC-CX85/CPS85
I J
DAP202K
DA204K
LC89170M
PST9137NR
BR93LC46AF
NJM2107F
AK93C45AF