Kenwood KDC-X679 Service Manual page 28

AJ
KDC-X679
D3
R34 4.7K
TP8 TP9
IOP1 IOP2
R36
4.7
Q8
C28 10 APC
R35 100K
3.3V 1
LD
0.2V 2
PD
0V 3
PN
3.3V 4
AVDD1
C21 5
DGND1
TP40
6
1000P
D2 RFOK 3.3V
RFOK
0V 7
R29
INTQ
1K 3.3V 8
8 RST
R21
CP7
1K
10K
7
9
9 A0
10
10 STB 3.3/0V
11
11 SCK
12
12 SO
0/3.3V
13
13 SI
14
DVDD1
3.3V 15
DAVDD1
16
ROUT
0V 17
DAGND1
C17
1.65V 18
REGC
0V 19
0.1
DAGND2
20
LOUT
3.3V
21
DAVDD2
22
C66 R130
XVDD
10P 220 3.3V
23
XTAL
0/3.3V
C67 X1
10P 16.898MHz
24
XTAL
0V 25
XGND
1.5V
CP19
100K
CP12
100K
C20 R68
0.1 100K 0V 17
LRCKIB
2.5V 18
VDD1
TP42
R28 3.3/0V
10K
0V 19 0/3.3V
7 STANBY
0V 20
VSS1
21
VSSL
22
VRAL
23
IC3
LO
24
MP3/WMA
VDAL
2.5V 25
DECODER
VDAR
26
RO
27
VRAR
28
VSSR
29
0V
TESTP
30 (DA) 0V
TXO
31 (MP3) 0/3.3V
PO0
32
PO1
TP41
• DC voltages are as measured with a high impedance voltmeter.
Values may vary slightly due to variations between individual instruments or/and units.
28
X32-5560-00 (2/2)
AK
Q9,10
SW
Q9
TP39 TP5
47K
ADCIN Vref
C34
TP7
TP6
47K
Q10 10K
56P
TE
FE
C31
R40
R43
10K
47P
39K C38
270K
6800P
1.65V
IC2
RF AMP &
CD SIGNAL
PROCESSOR
3.3/0V
3.3/0V
3.3/0V
TP15
FLAG
CP16
2.2K
R144
10K
C37 R42
1000P 100
3.3V
64
VSSX
63
3.5/0V XO
3.3/0V
62
2.6/0V XI
61
VDDX
60
(DA) 3.3V
CKIO
59
(MP3) 0/3.3V
VDDP
58
VCOI
(DA) 3.3V
1.35V
57
PDO
(MP3) 3.3/0V
56
VSSP
(DA) 3.3V
55
FI2
(MP3) 0/3.3V 0V
54
TSTIN
53
PI5
52
VDD2
0V 51
PI4
50
0V PI3
49
PI2
CP13
100K
AL
TP4 TP3
TP2
E F
RF
1.7Vp-p
0.3Vp-p
1.65V
75 C48
RF2-
1.0Vp-p 4P
74
RF-
73
1.0Vp-p
R51
EQ1
3.9K
72
EQ2
C49
71
1.7Vp-p
RFI
70 3300P
ADVDD
3.3V
69 1.65V
ASY
R55
3.0/0.3V
10K
68
EFM
67
ADGND
66
0V
TEST0
65
TEST1
64
TEST2
63
TEST3
62
TEST4
61
TESTEN
60
DGND4
59
3.3/1.65/0V MD-
58
MD+
57
SD-
56
SD+
55
TD-
54
TD+
53
3.3/0V FD-
52
FD+
51
DVDD4
3.3V
C39
0.1
4ch BTL DRIVER
IC4
1
BIAS
R52
16K 2
52 FDIN-
3
FDIN
4
SPIN+
R59
0V
4.7K 5
58 SPIN-
R46
1M
6
SPIN
R47
100K
0V
2.5V
7
R49 C41 C42
GND
0V 8
R48 330 0.33 0.1
5.0V 9
330
MUTE
10
CP15
GND
100K
C43 7.5V
11
VCC1
0.1
12
12 SPD-
13
13 SPD+
2.5V
14
F- FO-
CP14
15
100K
F+ FO+
M
M1
SPINDLE
MOTOR
AM AN
CN2
1 VCC
2 VC
3 GND
4 LD
R64
5 VR
240
6 PD
7 C+D
86 8 E
9 A
10 B
87 11 F
12 GND
F+ 13 FCS+
C51
T+ 14 TRK+
33P
T- 15 TRK-
TP1
C18
F- 16 FCS-
ARF
0.1
C54
0.01
C55
0.01
CP11
4.7K
58
56
54
52
CP10
10K
30 7.5V
VCC
R53
12K
29
TDIN- 54
28
TDIN
R56
12K
27
SLIN+ 56
26
SLIN-
25
SLIN
R63
24
LO/EJ 24
23 13K
22 R50
CNT 22
21
100
GND
7.5V
20
VCC2
19
SLD- 19
18
SLD+ 18
17
TR- T-
16
TR+ T+
M
M2
FEED & LOADING
MOTOR
1
DPU1(X92- )
OPTICAL
PICKUP
2
3
4
5
6
7