Schematic Diagram - Technics SX-KN7000P Service Manual

SCHEMATIC DIAGRAM-1

A
MAIN 1/5 CIRCUIT
IORST
A(0-25)
D(0-31)
SELE.LED
FDC.TC
PMUT
SD.CS
USB.SD
USB.ST
USB.MAITU
MIDI.TX
DSP.RST
MIDI.RX
11.2096M
CP.CLK
CP.DATA
PSRT.EXP
TGCS
TGCS2
FDC.CS
FDC.DACK
ADSPAB
BCD.CS
ADSPCS
DSP.FLAGE
FBC.INT
TOC.SNS
SDCO
TGS.INT1
TGS.INT2
HDD.INDEX
SNS
EXP.CS0
EXP.CS1
EXP.CS2
EXP.CS3
BUSCLK
LCD.WAIT
DSP.RDY
RE
WE3
WE2
FDC.DRQ
+3.3D
a
b
c
l R3
Q1
4.7K
d
2SB709ARTX R5
100K
e
f Q2
2SD601AQTX
g
m
C4
R2
h
0.22
1K
i
j R4 R7
1K 4.7K
k
R14
10K
+3.3D
Z8 4.7Kx4
Z13 4.7Kx4
A(0) 5 4 A(12) 5
A(1) 6 3 A(13) 6
A(2) 7 2 A(14) 7
A(3) 8 1 A(15) 8
Z10 4.7Kx4 Z16 4.7Kx4
A(4) 5 4 A(16) 5
A(5) 6 3 A(17) 6
A(6) 7 2 A(18) 7
A(7) 8 1 A(19) 8
Z12 4.7Kx4 Z18 4.7Kx4
A(8) 5 4 A(20) 5
A(9) 6 3 A(21) 6
A(10) 7 2 A(22) 7
A(11) 8 1 A(23) 8
+3.3D
C1
0.1
16
VCC
7 7 A0 1
9 6 A1 2
10 5 A2 3
11 4 Y CS2 4
12 3 CS3 5
13 2 CS1 6
14 1
15 0
GND
8
IC1
TC74VHC138F
(2 TO 4 DEMULTIPLEXER)
+3.3D
C2
0.1
16
VCC
9 2Y3 1Y3 7
10 2Y2 1Y2 6
11 2Y1 1Y1 5
12 2Y0 1Y0 4
15 2E 1E 1
A(22)
14 2DA 1DA 2
A(23)
13 2DB 1DB 3
GND
8
IC2
TC74VHC139F
(2 TO 4 DEMULTIPLEXER)
R40 0
+3.3D
C9
0.1
16
VCC
n
9 2Y3 1Y3 7
10 2Y2 1Y2 6
o
11 2Y1 1Y1 5
12 2Y0 1Y0 4
15 2E 1E 1
h
14 2DA 1DA 2
i
13 2DB 1DB 3
a
GND
b
8
c
IC3
d TC74VHC139F
(2 TO 4 DEMULTIPLEXER)
e
f
g
R1 100
R22 10K
R24 10K
C3
0.1
IC4
+3.3D
MN103002A
(32bit MICRO-CONTROLLER)
C8 0.1
4 A(0)
3 A(1)
2 A(2)
1 A(3)
A(4)
4
A(5)
3
A(6)
2
A(7)
1
C5 0.1
A(8)
4 A(9)
3 A(10)
2 A(11)
1
A(12)
A(13)
A(14)
A(15)
C6 0.1
A(16)
A(17)
A(16) A(18)
A(17) A(19)
A(18)
A(20)
A(21)
A(22)
A(23)
C7 0.1
A(24)
A(25)
+3.3D
D3 MA111-TX
R6
100K
A(23)
A(24)
1 A0
2 A1
3 A2
4 A3
5 VSS
6 A4
7 A5
8 A6
9 A7
10 VDD
11 A8
12 A9
13 A10
14 A11
15 VSS
16 A12
17 A13
18 A14
19 A15
20 VDD
21 A16
22 A17
23 A18
24 A19
25 VSS
26 A20
27 A21
28 A22
29 A23
30 VDD
31 A24
32 A25
33 A26/CS4/RAS4
34 A27/CS5
35 VSS
36 A28/CS6
37 A29
38 A30
39 A31/CS7
40 VDD
R8 4.7K
R9 4.7K
R10 4.7K
C11
0.1
+3.3D