Kenwood KDC-X715 Service Manual page 11

A B
X32-4740-00/X32-4750-00
1
56
57
2
58
5.0V
CN2 62
D.OUT 22
S2
12c DET.
SW2 21 C31
0.01 5.0V
S1
LOADING
C83 X1
SW1 20
10P 16.93MHz
CP1 100 C84
CLK 19 94 10P
L3
3 DATA 18 93 69
MECHA 17
5V SW
L2
NC 16
5.0V
BU+5V 15
D.GND 14
Q4
CP3 100
MUTE R 13 87
MUTE L 12 86
4
CP2 100
MRST 11 89
MSTOP 10 91
to
3 4
MAIN
UNIT
Q7 (1/2)
CN5
5
Q7 (2/2)
2
8V SW
R44
1
5.1K
Q3
A.+8V 9
5
8.0V
R121 R117
2.7K 2K
IC6
(1/2)
R127
8 6
R119
330 7
Lch 8 5 2.7K
L.P.F.
3 R120
3.8V 1
2
2.7K
4
IC6
R122 R118
(2/2)
2.7K 2K
6 R126
7.5K IC5
IN OUT
A.GND 7
8.0V
GND
Rch 6
0V
IC5
5V AVR
LO/EJ 5
MOTOR 4
S.7.5V 3
S.GND 2
SW3 1
7
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended
parts (refor 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 tha customer.
C D
C29
0.1
0V
51
CSEL
52
TEST1
53
TEST2
54
4.8V
IOSEL
0V
5.0V 55
NRST
5V
56
BCLK 0V
57
LRCK
58
SRDATA
59
SUBC
0V 60
SBCK
61
DQSY
62
DEMPH
R31 0V 63
TX
64
1K
PSEL
0V 65
IC2
MSEL
66 SIGNAL
SSEL
PROCESSOR
67
DVDD1
68
X1
R211
680
69
X2
70
DVSS
0V 71
XSUB1
72
XSUB2
73
DVDD2
0V 5.0V
74
NC
75
NC
0V
0V
C46 0.047
5.0V
R52 100K
R54
100K
D3
C85
CLVS
0.1
L14
L15
Q2
P-ON
DOWN & LIMIT
SWITCH
S3
D2
Q2
33
34
35
36
Q5 0V 37
GND AL
38
39
38 LO+
39
39 LO-
CP8
R115
38
2K 40
VDAL
41
VDAR
R116
43
2K 42
42 RO-
43
43 RO+
0V 44
GND AR
42 45
R215
10K 5.0V 46
RESETN
5.0V
47
48
5.0V
E F
0V
R36 C26
25 1.5V 150 1
1.8V
PLLF
IC1
24 1.4V C24 0.022
IREF
RF
R34 68K
AMP
23 2.5V
DSLF
22 R35 100K
DRF
2.5V
21
ARF
20 2.5V
VREF 20
19 2.5V
RFENV 19
18
NC
17
NC
16
NC
15 2.5V
TE 15
14
NC
13
FE
NC
12 2.5V
FE 12
11 3.0V
TBAL 11
10 2.5V
FBAL 10
9 5.0V
AVDD3
8 0V
AVSS3
7
NC
6
NC
19
5 5.0V
LDON 5
4 0V R218 47K
VDET 4
5V
3 0V
RFDET 3
0V 0V
2 0V
OFT 2
1 0V 20
BDO 1
0V
D4
Q8
C35
0.1
83
5.0V
5.0V
0V
16 0V
15
14
SGATE
13 0V W1
SCK 62
BUFF.
2.5V
0.4Vp-p
12 IC8
2.5V 4 3
11
1.45Vp-p
10
IC7 9
5.0V 2
8
D.R.I.V.E.
5 1
7
57
2.5V
6
1.45Vp-p
LRCK1
5
DATA1 58
2.5V 4 W3
5V
BCK1 56
0.4Vp-p
0V 3
2
16.9344MHz
2.5Vp-p 1
CLOCK
5V
INV.
0V
IC9
3
0V 4 2
69
5.0V 5 1
C81 R210
1000P 1K
•DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to
variations between individual instruments or/and units.
G H
RF
C23 R11 C5 R12
1000P 6.8K 33P 4.3K
C7 C6 R13 C3
4.8V
0.1 3P 36K 10u16
+
0V
ARF
0.8Vpp 2.5V 4.8V
0.1V
IOP1
R8
1.2ppV
4.7
0V or 5.0V 2.5V
D1
5ppV
TE
R17 R19
TE
36K 27K
R3
R18 C16 C18
82K
3.9K 100P 470P
34
R6
33
FE
82K
C14
4700P
ECS TVD
R72 C45
1K 0.012
R80 C44
2K 0.1
R76 6.2K 4.8V
2.0V
0V 0V
IC4
TRK+
MOTOR 4.0V
2.5V
2
DRIVER
4.0V
1
TRK-
0V 0V
FCS+
4.0V
27
4.0V
26
FCS-
R77 R78
56K 24K 8.0V
I J
IC1 : AN8806SB
IC2 : MN662773KB3
IC4 : BA5917AFP
IC5 : TA78L05F
IC6 : NJM5532MD
IC7 : KKZ05F
IC8 : TC7SH08F
IC9 : TC7SZ04F
Q1 : 2SB1188
Q2,5,8 : DTC124EUA
Q3,4 : 2SA1362(Y)
Q7 : FMC5A
D1,2,4 : DAN202U
D3 : DA204K
SIGNAL LINE
C4
B LINE
10u6.3
+
IOP2
PU1
R9 (T25-0209-05)
10
Q1
OPTICAL
APC
PICKUP
CN1
R1 33K
1 D
R2 33K
2 B
R22 33K
3 C
R23 33K
4 A
5 GND
6 LD
7 PD
R5 91
8 VR
9 VC
10 VCC
33 11 F
34 12 E
27 13 FCS+
2 14 TRK+
1 15 TRK-
26 16 FCS-
LOAD
SLED+
M2
M
12
11
LOADING & SLED
EJECT
SLED- MOTOR
SPDL-
M1
M
18
17
SPINDLE
MOTOR
SPDL+
KDC-X715