Kenwood KDC-MP425 Service Manual page 25

AJ
QQ
3 7 63 1515 0
Q9,10
SW
Vref
C34
FE
56P
TE
C31
R40
47P
270K
1.65V
D1
ND1
OK 3.3V
Q
T
3.3/0V
K
0/3.3V
DD1
DD1
UT
GND1
GC
GND2
UT
DD2
DD
3.3/0V
L 0/3.3V
3.3V
0V
L
ND
TE
L 13942296513
0/3.3V
R31
100K
R32
CP12
100K
100K
R33
100K
7
LRCKIB
8
VDD1
3.3/0V
3.3/0V
9 0/3.3V
STANBY
(DA) 3.3V
20
VSS1
(MP3)
21
VSSL
22
VRAL
23
IC3
LO
24
MP3/WMA
VDAL
25
DECODER
VDAR
26
RO
27
VRAR
28
VSSR
29
TESTP
30 (DA) 0V
TXO
31 (MP3) 0/3.3V
PO0
32
PO1
www
.
AK
Q9
47K
E F
47K
Q10 10K
R43
10K
39K C38
6800P
0.3Vp-p
IC2
RF AMP/SERVO
CD SIGNAL
PROCESSOR
3.3/0V
3.3/0V
FLAG
C39 CP9
0.1
3.3V
IC8
SELECTOR
5
(SERIAL DATA)
VCC
3.3V 1
0/3.3V
B
2
A
3 4
0V
GND Y
CP16
2.2K
R23
10K
C37 R42
1000P 100
3.3V
64 0V
VSSX
R46
63
3.5/0V XO
62
1M
1.0/0V XI
61
VDDX
60
0/3.3V
CKIO
59
VDDP
(DA) 3.3V
58
VCOI
(MP3) 3.3/0V
R48
1.35V 57
PDO
56
330
(DA) 3.3V
VSSP
CP15
(MP3) 0/3.3V
55 100K
FI2
0V
54
TSTIN
53
PI5
52
VDD2
0V 51
PI4
50
PI3
0V
49
PI2
x ao
y
CP13
100K
i
AL
8
RF
1.7Vp-p
1.65V
1.65V
75
C48
RF2-
4P
1.0Vp-p
74
RF-
73
1.0Vp-p
R51
EQ1
3.9K
72
EQ2
71 C49
1.7Vp-p
RFI ARF
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
CP11
4.7K
59
3.3/1.65/0V MD-
58
MD+
57
SD-
56
SD+
55
TD-
54
3.3/0V TD+
53
FD-
CP10
52
10K
FD+
51
DVDD4
3.3V
Q Q
3 6 7 1 3
100
IC4
1
BIAS
R52
16K
2
52 FDIN-
3
FDIN
4
SPIN+
R59
4.7K
5
58 SPIN-
6
SPIN
7
GND
0V 8
3.3V 9
MUTE
10
GND
7.5V
11
VCC1
12
12 SPD-
13
13 SPD+
14
R47 F- FO-
100K 15
0V
F+ FO+
2.5V
R49 C41 C42
330 0.33 0.1
C43
0.1
2.5V
M
CP14
100K
DM1
SPINDLE
(X92- )
MOTOR
u163
.
AM
KDC-MP425/MP6026
KDC-W6027/W6027Y
2 9 9 4 2 8
CN2
1 VCC
C36
2 VC
0.1
3 GND
4 LD
R64 DPU1(X92- )
5 VR
240
6 PD
OPTICAL
7 C
PICKUP
86 8 E
9 A
10 B
87 11 F
12 GND
F+ 13 FCS+
C51
T+ 14 TRK+
33P
T- 15 TRK-
C18
F- 16 FCS-
0.1
C54
0.01
C55
0.01
IC1 : 91CW12AFG-4VF6
IC2 : UPD63712GC
IC3 : TC94A20F-010
IC4 : BA5824FP-F
IC5 : NJM2880U133
IC6 : XC6219B332MR
IC7 : XC6219B252MR
C32
IC8 : TC7SH08FU
0.1
IC9 : TAR5S33-F
Q1,4 : 2SK3018F
Q3,5 : UMD9N
Q6 : UMD12N
Q7 : DTC124EUAF
Q8 : 2SB0970
Q9,10 : DTC114YUAF
58
D2 : DA204UF
56
D3 : DAN202UF
54
52
SIGNAL LINE
GND LINE
B LINE
UNIT No. S4
1 5 0 5 8 2 9 9 4
X32-5500-00 NO
X32-5500-01 YES
4ch BTL DRIVER
30 7.5V
CAUTION : For continued
VCC
R53
12K safety, replace safety criti-
29
TDIN- 54
cal components only with
28
TDIN
manufacturer's recom-
R56
12K
27
mended parts (refer to parts
SLIN+ 56
list).
26
components. To reduce the
SLIN-
risk of electric shock, leak-
25
SLIN
R63
24
age-current or resistance
LO/EJ 24
13K
23
measurements shall be car-
R50
22
CNT 22 ried out (exposed parts are
21
100
GND
acceptably insulated from
7.5V
20
VCC2
19
the supply circuit) before
SLD- 19
18
SLD+ 18
the appliance is returned to
17
TR- T-
the customer.
16
TR+ T+
• DC voltages are as mea-
m
M
DM2
LOADING & SLED
(X92- )
MOTOR
co
X32-5500
X32-5500-00 (2/2)
AN
9 9
1
2
3
2 8 9 9
4
Indicates safety critical
5
sured with a high imped-
ance voltmeter. Values
6
may vary slightly due to
variations between indi-
vidual instruments or/
and units.
7
25