Teac RW-800 Service Manual page 22

SCHEMATIC DIAGRAM
1 2
C_DONE
1
A
DATA TP
TO,FROM UCOM
1
TP
DCLK
1
NCONFIG TP
NSTATUS
VCC
B
C807
1
0.22
C808
1
0.22
DMACK-
DMACK-
TO ATIO IOR-
IOR-
IOW-
IOW-
ATDIR
ATDIR
C
R882
MCK 28.7 MHz
MCK
FROM UCOM
DIR
TREN-
TO ATIO
TRRQ-
D
VCC
VCC
GND
E
INSTRUCTIONS FOR SERVICE PERSONNEL
BEFORE RETURNING APPLIANCE TO THE CUSTOMER, MAKE LEAKAGE-
CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT.
RW-800
CONVERTER PCB (2/4) (3E9024700D)
3
VCC
C806
1 2
47/25V
R878
4.7K
R877
4.7K
103
FSONDT
104
FSOFDT
2 105
GNDA
106
TDB0
107
TDB1
108
TDB2
109
VCC5I
110
VCC5A
111
TDB3
112
TDB4
113
TDB5
114
TDB6 U802
2 115
TDB7
116
TDB8 HG71G063A
117
TDB9
118
VCC5A
119
GNDA
120
TDB10
121
TDB11
122
TDB12
123
TDB13
124
TDB14
125
TDB15
126
GNDA
1 2 127
TEST_C
R879 10K 128
GNDI
R803 1 2 NO MOUNT 129
DMACK
R801 1 2 33 130
IOR
R802 1 2 33 131
IOW
R865 1 2 33 132
ATDIR
1 2 133
T
134
10K
W
135
MCK
136
DIR
VCC
R835 1 2 33
R834 1 2 33
VCC
C809
0.22
NOTES:
1. Resistor values are in ohms (k=kilo-ohms, M=megohms).
2. Capacitor values are in microfarads (p=picofarads).
3. £Parts marked with this sign are safety critical components.
They must always be replaced with identical components-refer
to the appropriate parts list and ensure exact replacement.
4 5
VCC
C816 C815
0.22 0.22
256FS
SRCONDT
SRCOFDT
EXT1FS
EXT64FS
ADTHRU
R893 ADOUT
1 2 100 SAI
R857 FROM ATI O
1 2 1K O64FS
RESET-
O1FS
C822
1 2 OLRCK
1000P OBCK
SOUT1
SOUT2
DIGOUT
R899
1 2 10K
UBITO
R898 1 2
10K CLKSEL
VCC
LRCOUNT
68
GNDA
67
TDA13
66
TDA12
65
TDA11
64
TDA10
63
TDA9
62
TDA8
61
TDA7
60
GNDA
59
VCC5A
58
TDA6
57
TDA5
56
TDA4
55
TDA3
54
TDA2
53
TDA1
52
TDA0
51
GNDI
50
VCC5I
49 R896 1 2
33 ASCASL-
ASCASL
48 R894 1 2 33 ASCASH-
ASCASH
47 ASACK-
ASACK
46 ATACK-
ATACK
45 TRIG
TRIG
44 ASEN-
ASEN
43 ATEN-
ATEN
42 A4
AD4
41
VCC5A
40 A3
AD3
A2
39
AD2
38 A1
AD1
37 CASL-
CASL
36 CASH-
CASH
35 RD-
RD
CS0-
CS0-
CS1-
CS1-
CS2-
CS2-
WRL-
WRL-
WRH-
WRH-
D0
D0
D1 FROM UCOM
D1
D2
D2
D3
D3
D4
D4
D5
D5
C810 D6
C811
D6
0.22
0.22 D7
D7
D8
D8
VCC D9
D9
C804 D10
D10
1 2 D11
D11
D12
D12
47/25V D13
D13
D14
D14
D15
D15
注 意
1. 抵抗の単位はΩ （ｋ＝ｋΩ，Ｍ＝ＭΩ） です。
2. コンデンサの単位はμＦ （ｐ＝ｐＦ） です。
3. £マークのある部品は安全規格重要部品です。
交換するときは必ずティアック指定の部品を
使用してください。
6 7
256FS
SRCONDT
SRCOFDT
EXT1FS
EXT64FS
FROM DIO
ADTHRU
ADOUT
SAI
O64FS
O1FS
OLRCK
OBCK
TO DIO
SOUT1
SOUT2
DIGOUT
UBITO
TO ATIO
CLKSEL
NO CONNECT
LRCOUNT
VCC
C814
0.22
C813
0.22
C812
0.22
ASCASL-
TO UCOM
ASCASH-
ASACK-
ATACK-
TRIG
ASEN-
ATEN-
FROM UCOM
A4
A3
A2
A1
CASL-
CASH-
RD-
CONVERTER PCB (2/4)
ASIC SECTION
8
R R W W - - 8 8 0 0 0 0
CD Rewritable Deck
1 st Issue; June 2000