1
2
3
4
5
6
7
8
A
B
C
D
8
7
6
5
4
3
2
1
D
C
B
A
Title
Number
Revision
Size
A3
Date:
19-Feb-2001
Sheet of
File:
E:\PRIMARE\A30-1\SCH\EM1104-1.SCH Drawn By:
EA/VP
31
X1
19
X2
18
RESET
9
RD
17
WR
16
INT0
12
INT1
13
T0
14
T1
15
P10
1
P11
2
P12
3
P13
4
P14
5
P15
6
P16
7
P17
8
P00
39
P01
38
P02
37
P03
36
P04
35
P05
34
P06
33
P07
32
P20
21
P21
22
P22
23
P23
24
P24
25
P25
26
P26
27
P27
28
PSEN
29
ALE/P
30
TXD
11
RXD
10
U1
87C51
1
2
3
4
5
6
7
8
9
10
11
12
13
14
P1
14 POL IDC
VCC
2
VOUT
1
GND
3
IR1
TFMS5380
VCC
X1
12MHZ
C1
22p
C2
22p
R1
47k
R2
10K
R3
10K
Q1
BC850
Q2
BC850
C3
10u 16V
VCC
1
2
3
4
SW1
B3F-4055
R11
10R
C4
10u 16V
Q3
BC850
Q4
BC850
30.1 DISPLAY
R12
470R
R13
470R
R14
470R
R15
470R
R16
470R
R17
470R
R18
470R
C5
100U/6.3V
VCC
D1
LED
D2
LED
D3
LED
D4
LED
D5
LED
D6
LED
D7
LED
D8
LED
D9
LED
R19
1k33
R20
1k33
R21
1k33
R22
1k33
R23
1k33
R24
1k33
R25
1k33
R26
1k33
R27
1k33
G
1
DP
2
A
3
F
4
COM1
5
COM2
10
B
9
C
8
E
7
D
6
DISP1
DUAL_DISP
VCC
VCC
Tuner
Tape 1
CD
AUX
Clock HC595
Load HC596
Data HC595
Clock Potm
Data Potm
L/S Potm
Rem. bus
A
COM
B
SW2
24 CYCL.ENC.
R4 10K
R510K
VCC
R31
3k3
R32
3k3
R33
3k3
R34
3k3
VCC
R8
10K
VCC
GND
R35
10K
1
2
3
4
SW5
B3F-4055
R48
10K
VCC
SW3
SW-12WAY
SW4
SW-12WAY
SER
14
SRCLK
11
SRCLR
10
RCLK
12
E
13
O0
15
O1
1
O2
2
O3
3
O4
4
O5
5
O6
6
O7
7
Q7
9
U4
74HC595
VCC
VCC
BAL1
BAL2
MONITOR
0/180
ON
D10
LED
R49
1k33
OFF
R6
10K
R7
10K
R9
10K
R10
10K
VCC
GND
VCC
R37
100K
R38
100K
R39
100K
R40
100K
R41
100K
R42
100K
R43
100K
R44
100K
R45
100K
R46
100K
R47
100K
CS
1
nc
2
CH0
3
nc
4
CH1
5
nc
6
GND
7
DI
8
nc
9
DO
10
nc
11
CLK
12
nc
13
VCC (Vref)
14
U2
ADC08032
GND
C7
100N
R28
10K
R29
10K
R30
10K
R36 10K
R50
0R
R51
0R
R52
0R
R53 10K
R54
1K
R55
1K
R56
22K
C6
100N
C8
100N
R57
4k7
MONITOR
0/180
EM1104-2
BN
1
1
