Kenwood KDC-MP819 Service Manual page 16

S T
Q Q
3 7 6 3 1 5 1 5 0
1
2
DAUGHTER UNIT (X89-253X-XX)
CN1 J1
ESD GND 1 16 ESD GND
3
R9 470
EJECT 2
*
R10 220
EJECT
3 *
ILL(G)
S1
R11 220
EJECT
4
ILL(R/G)
X25-
CN6 N.C. 5
SRC 6 15 SRC
1/2
D GND 7 14 D GND
P5V 8 P5V 13 P5V
R1 470
T E
A
SC CON 9 L 1 3 9 4 2 2 9 6 5 1 3 12 SC CON
R2 240
MC REQ 10 11 MC REQ
R3 470
SC REQ 11 10 SC REQ
R4 240
MC CLK 12 9 MC CLK
4
R5 240
SC DATA 13 8 SC DATA
R6 240
P RST 14 7 P RST
R7 470
AUDIO 15 6 AUDIO
R8 510
RST 16 5 RST
FL GND 17 4 FL GND
FL +B 18 FL+B 3 FL +B
FAC 19 2 FAC
FAC 20 1 FAC
5
6
w w w
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
7
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.
U V
SWITCH UNIT (X16-168X-XX)
ED1
g f e h g f e h g f e h
30g
2g
G48 G47 G46 G45 G44
J1 +3.3V
FAC 1
FAC 2
45.3V
FL+B 3 +B
CP7 CP8
100x2 3.3V 100x4
0V
FL GND 4
D2
IC2
5.0V 1 16
S1
VCC NC16
2 15
RST 5 AOUT FOUT
5V
3 14
RESET 15 AIN 0V FIN
4 13
BOUT NC13
R15 15K 5 12
AUDIO 6 14 BIN EOUT
6 11
PRST 7 34 COUT EIN
3.3V
0V 7 10
SC DATA 8 1 CIN 0V DOUT
8 9
MC CLK 9 2 GND DIN
SC REQ 10 89
5V
BUFFER
MC REQ 11 95 0V
SC CON 12 91
PAN5V 13 P5V
3.3V AVR
IC1
D GND 14
C2
SRC 15 0.01
D1 3 1.3V
NIS
L9
3.3V 4
2 0V
OUT
GND
ESD GND 16 5V
L1
5.0V 5 1 0V
IN CTL
4.7uH
IC3
C6
IC3
4 0V 2.2
GND
REMOTE
3 5.0V
VCC +5V SENSOR IC
R12
100K
2 0V
GND
1 R10
OUT 13
1K
Q3
5V
REMO
Q3
0V
SW
R17 10
P5V
L2
10uH
P5V
83
BPF IC
IC4
R13
5V
270K
1.3V 1
R02 0V
18
R14
RST 72
270K
1.3V 2 17
R01 F01 F01
3 16
LNNF F02 F02
15
F03 F03
14
4
F04 F04
LNIN
13
5 F05 F05
2.5V RENF
12
6
F06 F06
REIN
11
7 RELV
RSTC
10
C8 10 2.5V 8
VCC +5V
BISC
0V 9 5.0V
GND
x a o
y
. i
DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations
between individual instruments or/and units.
W X
g f e h g f e d c b a d c b a d c b a
G26 G25 G24 G23 G5
D16 D15
R9 C4 R8
2.2K 2.2 56K
C5 R7
0.01 22
Q10
KEY ILLUMINATION
+3.3V
GREEN SW
P5V P5V
Q1
+B
Q1,2
FL+B SW
P5V
**
S20
A
Q6
Q2
KEY
10K ILLUMINATION
SW
Q8
47K
Q6 SRC
10K
Q Q
7
47K 3 7 6
P5V
4
5
Q4
FL
BLANKING
SW
5V
0V
C20
31
0.1
NC
5V
32
NC 0V
CP9 5V
33
100Kx2 R25
NC 0V
1K
34
RESET
0V 35
XT1
36
XT2
C12 1 5.0V 37
REGC
X1
38
X2
39
PANEL MI-COM.
X1
C9
2.2
20.000MHz
0V
40
VSS
5.0V 41
P5V VDD
42
NC
43
NC
44
NC
45
NC
46
NC
47
NC
5V
48
FL VDD 0V
49
FL +B
50
NC
u 1 6 3
P5V
Y Z
2 4
8 9 9
* *
d c b a d c b a S2 S3
30a
30
29
28
27
26
25
24
3 6
23
22
* *
21
20 S5 S6
19
18
17
16
15
14
13
12
11
2 5
10
9
8
7
6
* *
5
S8 S9
4
3
2
2a
G4 G3 G2 G1
1 4
*
S11 S13
C19
0.01
+B
Q9
KEY ILLUMINATION
RED SW
EQ TI
Q7,8
V-I CONVERTER
* *
8 S16 S17
P5V
Q10 Q9
10K 10K
10K 10K
ATT DISP
Q7
7
3 1 5 1 5 0 8 9
P5V
CP6
100x2
CP4
470x2
CP1
470x4
D10
100
5V 99
5V
KS1 KS1
0V 0V
98
KS2 KS2
5V
97
5V 5V
0V KS3 KS3
0V 0V
96
KS4 KS4
5V
0V
5V
95
0V MC REQ
94
VREF CON
93
CP5
SOURCE
5V
92 1Kx4
0V NC
91 95
SC CON
5V
93
90
IC5
0V NC
91
89
SC REQ 89
5V D12
0V
88 R32 1K
KR1 KR1
P5V
CP3
CP2
100Kx4
1Kx4
87
KR2 KR2
86
KR3 KR3
5V
85
KR4 KR4
0V
84
KR5 KR5
D11
83
WAVE IN 83
82
F06 F06
81
F05 F05
m
c o
P5V
.
KDC-MP819/X659/Z838
AA
2
8 9 9
S4
FM
* KR1
S7
KR2
* *
S10 S12
SA
KR3
*
S14 S15
AM
KR4
* *
S18 S19
KR5
2 4 9 8 2 9 9
IC1 : TAR5S33
IC2 : TC74HC4050AFT
IC3 : RS-171
IC4 : BA3830F
IC5 : UPD703032GFA04
D1,2,15,16 : DA204U
D3-5,9,13,14 : MA8056-M
D10,11 : FTZ6.8E
D12 : MA8062-L
Q1 : DTA144EUA or
UN5113
Q2 : DTC114YUA or
UN5214
Q3,9,10 DTA114EUA or
:
UN5111
Q4 : DTC114EUA or
UN5211
Q6 : DTC114YK or
UN2214
Q7,8 : 2SC4081
(X16-168X-XX)
UNIT S2,3,5-10,
MODEL NAME A
12,13,15-19
No.
KDC-X659
KDC-MP819 S70-0873-05
K
0-00 NO
KDC-719 (YG)
KDC-X559
X838
E
Z638
S70-0856-05
2-71 YES
KRC-Z965
(SR/PG)
M
KDC-Z838
KDC-Z737
SIGNAL LINE
GND LINE
B LINE
+B