HP 8112A, Operating, Programming And Servicing Manual

Page: 341 / 406

Change 10
Component value change to provide greater adjustment range on
Width generator.
For instruments with serial number 2136G00605 and lower, make the
following changes to the appropriate parts-list:
Control Board
In Appendix A, Table A-4
modify :
Change 1 1
Main Board
Change 12
Main Board
Reference Description HP Part #
A2 081 12-66502 R7
R-F 4.64 k/ 0698-3155
For instruments with serial number 2136G00705 and lower, make the
following changes to the appropriate parts-list:
In Appendix A, Table A-3
modify:
Reference Description HP Part #
Al 08 112-66501 R3 17 R-F 2k 0757-0283
In Appendix A, Table A-3
delete :
Reference Description HP Part #
Al 08112-66501 C541 C-F 0.01 µF
The performance of the rate ICs was improved. With introduction of
new version, components and values were changed .
For instruments with serial number
2 1 36G00730
and lower, make the
following changes to the appropriate parts lists:
In Appendix A, Table A-3
modify :
Reference Description
HP Part #
Al 08112-66501 R21 1 R-F lk
1% .125W 0757-0280
R225 R-F lk 1% .125W 0757-0280
R244 R-F lk 1% .125W 0757-0280
U200 IC TIMING SEL 2% 5180-2410
U220 IC TIMING SEL 2% 5180-2410
U240 IC TIMING SEL 2%
5180-2410
Backdating B· 7