Kenwood TK-90 Service Manual page 126

F
ACCESSORY UNIT (X42-3290-20)
L41
3C_CPU
10u
IC7
XC62FP1802PN
R41
5C 2 3
VOUT
VIN
33
VSS
1
DGND
IC8
D41 XC62FP3302P
RB521S-30
5C 2 3
VOUT
VIN
VSS
R44
1
0
3C
LRCK,MCLK,SCLK,SDTI,SDTO,PWAD
IC9
AK4550VTP
9 SDTI 8
SDTo
SDTI
10 LRCK 7
DEM1
LRCK
11 MCLK 6
DEM0
MCLK
12 SCLK 5
VDD
SCLK
13 PWAD 4
VSS
PWAD
14 PWDA 3
AINL
15 AoUTL 2
AINR
16 AoUTR
1
VCoM
CODEC_GND
C213
AF OUT R207
1u 10k
0.5Vpp(at-12dB)
3A
REF1.6V
IC11
NJM2100V-ZB
5 B+INPUT 4
V-
R227 6 B-INPUT 3
A+INPUT
10k
7 BoUTPUT 2
A-INPUT
8 V+ 1
AoUTPUT
5.0kHz:-3dB
6.5kHz:-6dB
5C
5BTT
Note : The components marked with a dot (
G
KPE-2 (ALE UNIT /
L43
3C_DSP
10u 2C
R43
2C
0
DGND
C63
1
NC1
2
0.1u
NC2
3
VSS1
4
DVDD1
5
A10
R63
6
HD7
D7
7
A11
0
8
A12
9
A13
C64
10
A14
3C
11
A15
0.01u
12
NC3
R64
13
HAS
14
VSS3
10k
15
NC4
16
CVDD2
R65 0 17
HCS
HCS
R66 0 18
HRW
AD
19
READY
20
R67 PS
21
10k DS
22
IS
23
R/W
24
MSTRB
25
IOSTRB
26
MSC
TP(XF)
27
XF
28
HOLDA
R61
29
IAQ
10k
30
HOLD
MP/MC
SDTO
31
BIO DVDD2
BIO
32 VSS5
NC5
33
NC6
34
35
C62
36
0.1u
AINR
GND
DET IN
0.5Vpp(-12dB)
NJM2100V-ZB
-6dB
1 AoUTPUT
C223
2 A-INPUT
680p
3 A+INPUT
C217
4 V-
680p
C216
100p
REF1.6V
(1Vpp)
4.5kHz:-3dB
5.5kHz:-6dB
• ) are parts of layer 1.
H
VSS14
IC10
320VC5402PGE
VSS12
DVDD4
NC12
NC11
3A
IC12
8
V+ AIN1
+10dB (3.3Vpp)
7
AOUT1
BoUTPUT
C232
6
B-INPUT
390p
5
B+INPUT
BERDAT
BERCLK
R164
RSV1
R163
_BAUD
R162
_BIO
-10dB
R161
BKC
R160
ABSY
R159
ADCD
R158
ARDY
R157
RSV2
R156
APTT
R155
_TXC
R154
CTS
R153
RTS
R152
RXD
R151
TXD
I
TK-90
!"#$
)
3C_DSP
2C
DGND
108
107
106
A18
105
A17
104
D5
103
D4
A16
102
D3
101
D2
100
D1
99
D0
98
RS
DRST
97
X2/CLKIN
96
X1
95 R97 0
HD3
D3
94
CLKOUT
93 C74
VSS13
92 0.01u
HPIENA
91 2C
CVDD5
90
NC14
89 1.TMS
TMS
88 9.TCK RET / 11.TCK
TCK
87 2.TRST
TRST
86 3.TDI
TDI
85 7.TDO
TDO
84 14.EMU1
EMU1/OFF
83 13.EMU0
EMU0
82
TOUT0
R98
81
HD2
D2
80
NC13
0
79
CLKMD3
78
CLKMD2
77
CLKMD1
C75
76
75
74
0.1u
73
DGND
3C_DSP
2C
1
2
3
4
L151
5
6
10u
7
R168
8
100
9
R167
10
100
11
12
100 13
100 14
100 15
100 16
100 17
100 18
100 19
100 20
100 21
100 22
100 23
100 24
100 25
100 26
E41-1314-05
J
1
2
3
4
5
GND
AO
AI
5BTT
A5A
NC
DGND
BRDAT
BRCLK
ALE2
ALE1
ASENS
RSV1
BAUD
BIO
ABKC
ABSY
6
DCD
ARDY
RSV2
APTT
TXC
RTS
CTS
TXD
RXD
CN1
7
129
X42-329 2/2