27
KDC-2027SA/SAY/SG/SGY, 3027A/AY/G/GY
KDC-308A/AY/G/GY, 4027/V/VY/Y, F327A/G
AX
AW
AV
AU
AT
1
2
3
4
5
6
7
CAUTION : For continued safety, replace safety critical components
only with manufacturer's recommended parts (refer 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 the customer.
• DC voltages are as measured with a high impedance voltmeter.
Values may vary slightly due to variations between individual
instruments or/and units.
Q2
CN1
Q3
D2
Q4
SW
5V
3.3V AVR
APC
SW
OPTICAL
PICKUP
DIGITAL LINE
AUDIO LINE
B LINE
GND LINE
D2
Q4
Q3
Q2
IC4
IC3
IC2
IC1
: DAN202U
: DTC114YUAF
: 2SB0970
: DTA114YUAF
: BA5824FP
: uPD63712GC
: NJM2880U133
: 789166YGB-A513
VPP
34
33
32
31
30
29
28
27
26
25
24
23
22
SERCH
NC
NC
MUTE
LIM SW
VDD0
VSS0
X1
X2
M RSET
XT1
XT2
VPP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
VCC
VC
GND
LD
VR
PD
C+D
E
A
B
F
GND
FCS+
TRK+
TRK-
FCS-
5
4
VIN
V
OUT
1
2
3
CNTL
GND
NB
C9 0.1
C11 1
0.01
C10
1/2W
10K
R8
0.1
C7
100K
R9
4.19MHz
X1
AD
VDD
TEO
INTQ
RST
8
RFOK
PWMSW
1
RFOK
DGND
A
VDD
5
6
7
PD
PN
LD
3
4
2
96
100
99
98
97
AGND
TE2
TEC
REFOUT
VREFIN
REFC
91
95
94
93
92
ADCIN
TE-
FE-
FEO
86
87
90
89
88
AVDD
F
E
ATEST
80
81
82
85
84
83
C
B
D
AGND
A
77
79
78
76
RFO
C3T
AGCO
AGCI
FE
IOP1
IOP2
TE
ADCIN
PD
LD
E
ASY
75
EQ2
70
71
RF1
73
72
74
RF-
EQ1
RF2-
ARF
RF
B
C+D
F
A
0.1
C8
25
1K
R11
10
C13
100K
R22
1500P
C14
0.1
C25
0.1
C26
6800P
C29
0.1
C30
4P
C32
3300P
C33
3.9K
R33
33P
C39
0.1
C40
8
100
R15
1000P
C15
0.1
C12
0.1
C18
4.7
R23
47P
C23
270K
R26
56P
C24
ATEST
R20 4.7K
240
R45
3K
R28
16
13
14
15
3K
R27
100K
R24
100K
R12
R16 1K
7
5.6
R10
39K
R25
6800P
C22
VREF
PLAY
SERCH : L
: H
C31 1
IC2
(X93- )
DPU1
47K
10K
47K
10K
0V
V
V
5.0V
MHz
MHz
0V
5.0V
5.0V
0V
4.2V
3.3V
1.2V
0V
0.2V
3.3V
5.0V
0V
0V
5.0V
3.3V
1.65V
1.7Vp-p
1Vp-p
1.65V
0V
1.0V
0V
0.3Vp-p
2.0V
0V
3.3V
1.65V
0V
3.3V
3.3V
5.0V
0V
X32-5490-00 (2/2)
DTA114EE
DTC114YUA
DTC143TUA
2SA1036K
2SC4617
2SC4081
DTA124EUA
UMC2N
DAN202U
DA204U
DTA114YUA
3SK126
BR24C01AF-W