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2. Figure B-2 shows the location of the RAMs UlO and U l l on the
microprocessor board 081 16-65503. Modify Chapter 10.7, Figure
10.7-9 accordingly.
A3 M ICROPROCESSOR BOARD 0811 6-66523
'fl
a:
J1
FROM
U30
B-14 Backdating
TPl +5V
•
•
U5
SA SP TP3
•
•
•
U8
Figure B-2. 08 1 16-66523: U 1 0, U 1 1 layout
TP2
TP1
•
•
3. Figure B-3 shows the RAM circuit on the microprocessor board
081 16-65523. Modify Chapter 10.7, Figure 10.7-5 accordingly.
-
U 30/5 R/W
-
R/W
ADDRESS BUS
DATA BUS
TO U 2 9 B / 8
TO U2B/ l
1 0
Alil
5
A l
6
A2
7
A 3
4
A4
3
A5
2
A6
1
A 7
1 7
AB
1 6
A9
1 5
0 7 1 1
06 1 2
0 5 1 3
0 4 1 4
l B
CS VCC
G2
1
2
(")
4
N
&
B
-
1 6
I
&
32
<(
64
1 2B
256
5 1 2
U l l
RAM
[> 1
<J
2
[> 1
<J 2
[> 1
<J 2
[> 1
<J
2
-
R/W
A0
A l
A2
A3
A4
A5
A6
A 7
AB
A9
TO U2B/ 1
1 0
5
6
7
4
3
2
1
1 7
1 6
1 5
03
1 1
02
1 2
0 1 1 3
Olil
1 4
G2
1
2
(")
4
N
&
B
-
1 6
I
&
32
<(
64
1 2B
256
5 1 2
U 1 0
RAM
[> 1
<J
2
[> 1
<J 2
[> 1
<J
2
[> 1
<J
2
Figure B-3. 08 1 1 6-66523: U 1 0, U 1 1 schematic
Summary of Contents for 8112A
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Page 144: ...8 32 Testing Performance ...
Page 176: ......
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Page 194: ...10 2 4 Servicing the Power Supply ...
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Page 240: ...10 4 16 Servicing the Shaper and Output Amplifier ...
Page 242: ...A R l BD RY MR I N 1 2 7 I I IJt 51 CR1 B e i 1 _ _ _ _ 20 ...
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Page 262: ...A B A2 ED RY CONTROL ...
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Page 290: ...R B c R3 BD RY M I CROPROCESSOR 1 2 3 FIGURE 1 0 7 8 ...
Page 294: ... 8 X2l 2 X2 Figure A 1 Mechanical Parts 1 A 2 Replaceable Parts ...
Page 295: ...MP MP3 MP MP2 MP4 MPS MP 1 2 MPS MP MP I B ElElElEl Replaceable Parts A 3 ...
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Page 378: ...Figure B 14 Mechanical Parts 1 B 44 Backdating ...
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