Kenwood TK-90 Service Manual page 140

ACCESSORY UNIT (X42-3290-20)
L100
10u
IC13
TC7WU04FU-F
R102
1 1A VCC 8
330
2 3Y 1Y 7
3 2A 3A 6
X1
4 GND 2Y 5
L77-3001-05
VC VCC
GND OUT
12.288MHz
DGND
1 P94
2 P93
3 P92
CP3 4 BAUD
BAUD
5 SQC
SQC
6 BYTE
100
7 CNVSS/(WCNV)
CNVSS
R3 47k
8 SSEL1
9 P86
R4 100
10 RESET/(WRST)
RESET
11 XOUT
C3
12 VSS
CPU_XIN
0.01u 13 XIN
14 VCC1
15 NMI
R5 100
16 INTRA
INTRA
R6 100
17 HINT
HINT
R7 100
18 RXDINT
RXD0
19 P81
20 P80
R16 100
21 DINT
WRST DINT
RESET
R17 100
22 DRST
WCNV DRST
CNVSS
23 YOBI1
WTXD
WTXD
24 YOBI2
WRXD
WRXD
25 YOBI3
WCLK
WCLK
WBSY
WBSY
DGND
HOLD
R8 47k
Q1
DTC114EKA
C5
0.01u
3C_CPU
IC3
CAT24C256WIG3
4 5
VSS SDA
3 6
A2 SCL
2 7
A1 WP
1 8
A0 VCC
C25
0.01u
RTC/SRAM_VDD
X21
IC2
L77-1802-05
RV5C386A
32.768kHz
6 5
INTRA
VSS
CN22 7 4
CLKC
B-side INTRB
8 3
OSCOUT
SDA
9 2
OSCIN
D21
SCL
10 1
VDD
32KOUT
1SS388F
R22
5.6k(G)
CN21
J19-5386-05
W09-0971-05
R21
3.9k(G)
5BTT
DSP_XIN
R105
0
75
AMU R15
74
PTT
100
73
TXC
72
AUXIN
71
BKC
70
A0
69 CP16
A1
68
A2
67
A3
100
66
A4 CP17
65
A5
64
A6
100
IC1 63
A7
C7
3062LFGPUKBNA
62
VSS
61 0.01u
A8
60
VCC2
59 CP18
A9
58
A10
57
A11 100
56
A12
55 CP19
A13
54
A14
53
A15 100
52
A16
A17 51
CP14
47k
DGND
IC5
HD74LV541AT
11 10
Y8 GND
12 9
SQC Y7 A8
13 8
BAUD Y6 A7
14 7
Y5
BIO A6
R34 15 6
BKC
Y4
A5
0 16 5
TXC Y3 A4
17 4
CTS0 Y2 A3
18 3
Y1
RXD0 A2
19 2
G2
A1
20 1
VCC G1
C31
3C_CPU
0.01u
C32
0.01u
IC6
HD74LV541AT
1 G1 20
VCC
2 A1 19
BUSY G2
3 A2 18
Y1
DCD
4 A3 17
Y2
MMU
5 A4 16
AMU Y3
6 A5 15
PTT Y4
7 A6 14
Y5
RTS0
8 A7 13
Y6
TXD0
9 A8 12
Y7
10 GND 11
Y8
DGND
L41
3C_CPU 3C_CPU
10u
R41
5C
33
DGND DGND
PTT
TXC
D41
RB521S-30
RESET
5C
A0
R44
A1
0
A2
A3
A4
A5
A6
3C
A7
LRCK,MCLK,SCLK,SDTI,SDTO,PWAD
IC14
A8
S-80942CNNB-G
A9
3 2
CD VDD
A10 SDTI
10 LRCK
A11
LRCK
A12
11 MCLK
4 oUT 1
VSS MCLK
A13
12 SCLK
A14 SCLK
13 PWAD
A15
PWAD
14 PWDA
15 AoUTL
16 AoUTR
AF OUT
0.5Vpp(at-12dB)
3A
REF1.6V
RSV1
_BAUD
_BIO
5 B+INPUT
BKC
R227 6 B-INPUT
_TXC
10k
7 BoUTPUT
CTS
RXD
8 V+
R33 5C 5C
10
ABSY
ADCD
ARDY
RSV2
APTT
RTS
TXD
5BTT 5BTT
L43
3C_DSP
10u 2C
IC7
XC62FP1802PN
R43
2 3 2C
VOUT
VIN
0
VSS
DGND
1
C63
1
2 NC1
0.1u
NC2
3
VSS1
4 DVDD1
5
A10
R63
6
HD7
D7
7
A11
0
IC8
8
A12
XC62FP3302P
9
A13
C64
10 A14
2 3 3C
VOUT 11 A15
0.01u
VIN 12
NC3
R64
VSS
13
HAS
14
1 10k VSS3
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)
IC9
27
XF
AK4550VTP
28
HOLDA
R61
29
IAQ
9 SDTI 8 10k
SDTo 30 HOLD
MP/MC
SDTO
31 BIO DVDD2
BIO
7
DEM1 32 VSS5
NC5
33
NC6
6
DEM0 34
35
C62
5
VDD 36
4 0.1u
VSS
3
AINL
AINR
2
AINR
1
VCoM
CODEC_GND
C213
R207
1u 10k
GND
DET IN 3A
0.5Vpp(-12dB)
IC12
NJM2100V-ZB
-6dB
1 AoUTPUT 8
V+
C223 +10dB (3.3Vpp)
2 A-INPUT 7
IC11
BoUTPUT
NJM2100V-ZB
680p
3 A+INPUT 6
C217 B-INPUT
4
4 V- 5
V-
680p B+INPUT
3
A+INPUT
C216
2
A-INPUT
100p
1
AoUTPUT
5.0kHz:-3dB
6.5kHz:-6dB
REF1.6V
(1Vpp)
4.5kHz:-3dB
5.5kHz:-6dB
3C_DSP
2C
DGND
108
107
106
A18
105
A17
104
D5
VSS14
103
D4
A16
102
D3
101
D2
100
D1
D0 99
RS 98
DRST
97
X2/CLKIN
96
X1
95 R97 0
HD3
D3
94
CLKOUT
93 C74
VSS13
HPIENA 92 0.01u
IC10
CVDD5 91 2C
320VC5402PGE
90
NC14
89 1.TMS
TMS
88 9.TCK RET / 11.TCK
TCK
87 2.TRST
TRST
TDI 86 3.TDI
TDO 85 7.TDO
84 14.EMU1
EMU1/OFF
83 13.EMU0
EMU0
82
TOUT0
R98
81
HD2
D2
80
NC13
0
CLKMD3 79
CLKMD2 78
77
CLKMD1
VSS12 C75
76
DVDD4
NC12 75
NC11
74 0.1u
73
DGND
3C_DSP
2C
1 GND
2 AO
AIN1
3 AI
AOUT1
C232 4 5BTT
L151
5 A5A
390p
6 NC
10u
7 DGND
R168
8 BRDAT
BERDAT
100
9 BRCLK
BERCLK
R167
10 ALE2
100
11 ALE1
12 ASENS
R164 100 13 RSV1
RSV1
R163 100 14 BAUD
_BAUD
R162 100 15 BIO
_BIO
-10dB
R161 100 16 ABKC
BKC
R160 100 17 ABSY
ABSY
R159 100 18 DCD
ADCD
R158 100 19 ARDY
ARDY
R157 100 20 RSV2
RSV2
R156 100 21 APTT
APTT
R155 100 22 TXC
_TXC
R154 100 23 RTS
CTS
R153 100 24 CTS
RTS
R152 100 25 TXD
RXD
R151 100 26 RXD
TXD
CN1
E41-1314-05