Change
5 1
Change
52
Change
53
Capacitor added on back of board from
U lOO
Pin 1 2 to +5
V
rail, to
suppress spikes.
For instruments with serial number 285 1 G07980 and lower, make the
following changes to the appropriate parts-lists:
Main Board
In Appendix A, Table A-3
delete :
Reference Description
Al 08112-665 11 Cl41
Capacitor
HP Part #
3 .3 pF 0160-4382
Changed component values to increase adjustment range.
For instruments with serial number 285 1 G08630 and lower, make the
following changes to the appropriate parts-list :
Main Board
In Appendix A, Table A-3
modify:
Reference Description
Al 081 12-66511 R410
Resistor
R41 1
Resistor
Heatsink added to Q282.
HP Part #
500
n
2100-0554
2.61
k
0698-7246
For instruments with serial number 285 1 G08780 and lower, make the
following changes to the appropriate parts-list :
Main Board
In
Appendix A, Table A-3
delete:
Reference Description
Al 081 12-66511 MP201
Heatsink
HP Part #
1205-0235
B-34 Backdating
Summary of Contents for 8112A
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Page 144: ...8 32 Testing Performance ...
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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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