Kenwood DPX502 Service Manual page 33

AT
X1
X2
16.934MHz
RST
R87
1M R85
10K
4.00pp
2.45pp
0V
0-3.3V
IC1
CD SIGNAL PROCESSOR
& MECHA u-COM
RF AMPLIFIER
RESPONDING to CD-RW
3.3V
C24 R105
1.5V
0.1 2.2
D.GND
3.6V
17
3.3V
16
SLED OUT
/LOAD
19
18
V 3.7V
SLED IN
/EJECT
SPDL-
3.4V
15
3.4V
14 12
13
SPDL+
ND
AU
A3.3V
L
C71 10
C72 0.1
C75
0.1
C73 10
C74 0.1
0V
3.3V
0V
3.3V
1.3pp
0.6pp
1.6V
3.3V
0-3.3V
3.3V
0-3.3V
3.1V
VPP
C26
P-ON1
0.1
(X32-598x-xx)
DESTI-
AUDIO
NATION
ANALOG J/K/M/E
MECHA.
OUTPUT
(X92- )
DIGITAL J/K/M/E
DM2
OUTPUT
M
IC1 : MN6627781KC
IC2 : XC6219B332PR
IC3 : XC6201P332PRN
LOADING &
IC5 : (NOT USED)
SLED
MOTOR IC6 : BA5824FP
DM1
M
SPINDLE
MOTOR
AV
A.GND
A GND2
2.60pp
C64
0.33
0V
C63
1000P
96
VCOF
C62 0.082
95 1.4V
PLLFO
C61
1.4V
1000P
94
PLLF
R77 82K
93 0.8V
IREF
C59 0.1
C60 0.022
92 1.7V
DSLF
C58 680P
91
ARFIN
C57 0.1
90
ARFFB
89
ARFOUT
C56
88 1.1V
3.3V
ARFDC
4.7
87 3.3V
AVDD2
C55 0.33
86
RFIN
85
RFOUT
C54 3300P
84 1.5V
REFNV
C53 0.022
83 1.9V APC
CENW
82 2.2V
LD
81 0.2V
0.24pp
PD 81
80
A 80
79
0.36pp
C
78
B 78
77
77
D
R100
0.28pp
76
2.2M
F 76
75
E 75
74 1.6V
VREF
73
R51
CTRCRS
10K
72 OSCIN
OSCIN
71 0V
AVSS2
70
R54
DRV MUTE
5.6K
69
FOD
68
R53
N.C.
S.GND
1K
67
TRD
16
66
C34
P-ON2
14
6800P
65
N.C.
15
C33
17
4700P
P-ON2
VREF
D.GND
C4,5,15,16, C72,74, Q1,
UNIT
CP1 D4 IC3
71,73,83 81,82 2,4
No.
0-00 YES 10K YES YES YES
0-01
YES 10K YES YES YES
0-02 YES 2.2K
0-03 YES 2.2K
Q1 : DTA143XUA D1,3
Q2,8,9 : DTC114YUA D2
Q3 : UM6K1N D4
Q4 : UMD9N
Q6 : 2SB1295-E
Q7 : 2SB0970
SIGNAL LINE
GND LINE
B LINE
AW
DPX502/502U/502UY
DPX-MP5100U
CAUTION : For continued safety,
re place safe ty critical com po nents
only with manufacturer's rec om -
mend ed parts (refer to parts list).
Indicates safety critical com-
po nents. To reduce the risk of
electric shock, leakage-cur rent or
re sis tance mea sure ments shall
be carried out (ex posed parts
are ac cept ably in su lat ed from the
supply cir cuit) be fore the ap pli -
ance is returned to the customer.
• DC voltages are as measured
with a high impedance volt-
me ter. Val ues may vary slight ly
due to vari a tions between in di -
IOP+ VCC vid u al in stru ments or/and units.
IOP-
Q7
CN1
1 VCC
VC
2 VC
A GND2
3 GND
D3
R74
LD
4.7K
DPU1
4 LD
(X92- )
R73 91
VR
5
VR
PD
81 6 PD
C+D
77 7 C+D
OPTICAL
E
75 8 E
PICKUP
A
78 9 A
B
80 10 B
F
11
76 F
S GND
12
GND
FCS UP
13 FCS+
TRK IN
14 TRK+
TRK OUT
15 TRK-
FCS DOWN
16 FCS-
R13,14, R23,24,37
R27 S4 X1 X2
28,38 102,103
YES 22K YES
YES 22K YES YES
YES 100 YES
YES 100 YES YES
: DAN202U
: MA2S784-F
: DA204U
X32-5980-02 (2/2)
AX
1
2
3
4
5
6
7
33