Kenwood KDC-348U Service Manual page 37

AT
3
D1.5V
0V
1.5V
0V
41
DVSS3R
1.6V
42
RO
43
DVDD3R
3.3V
44
DVDD3L
45
LO 1.6V
46
DVSS3L 0V
47
XVSS3
48
SERVO DSP WITH
XI
BUILT-IN AUDIO DAC
49
XO
50
XVDD3
51
VDD1-2
52
VSS2
53
PIO0
54
PIO1
55
PIO2
56 0V
PIO3
57
PIO4
58
PIO5
59 3.2V
PIO6
60 0V
PIO7
C26
1
R13
C61
100K
0.1
2 73
AU
D3.3V
TP111
RFRP
LDO
MDI
AVSS3
VRO
2.0V
TNI
TPI
FP11
1.9V
FPI2
FNI1
IC4
FNI2
2.0V RVSS3
RFO
2.2V
AGGI
DCOFC
RFEQO
2.1V
RFRPI
RFI
1.7V
SLCO
RVDD3
1.4V
1.6V
VCOI
0V
C29
0.1
C22
C27 C25
0.01
0.1 0.1
D3.3V
AV
3
TP44 FCS-
F-
TP47 TRK-
T-
TP46 TRK+
T+
TP45 FCS+
F+
TP84
GND
TP49
LD
TP39
FE
TP43 PD
R5
2.2M
TP42 C+D
CD
R6 1K
20
TP72 F
19 0.2V
F
TP41 A
18 0V
A
17 1.7V TP40 B
B
16
F
TP71 E
15
E E
14
B
13
CD
R4
12
100K
A
11
C1
10 0V
10
TP51
IOP+
C3
9 TP52 RF
68P
IOP-
C10 0.1
8
TP50
C4
C11 1
Q1
0.015
7 1.7V
6
C12 0.1
5
C13
TP88
3300P
4 AGND
Q1
C14
TP113 RFI 0.01
APC
3
(AUTO POWER
2 3.3V
CONTROL)
C6
1
1
1.3V
TP53
Vref
TP87
A3.3V
(X32-6250-02)
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 vid u al in stru ments or/and
units.
AW
KDC-348U/4751SD/BT41U/BT648U
/U4549/U4549SD/U549BT/X395/X695
CN1
1 F-
2 T-
3 T+
4 F+
5 VCC
6 VC
7 GND
DPU1
(X92- )
8 LD
9 VR
10 PD
OPTICAL
PICKUP
11 C+D
12 F
13 A
14 B
15 E
X32-6250-02 (2/2)
AX
1
2
3
4
5
6
7
37