HP 8112A Operating, Programming And Servicing Manual page 369

Change 54
Main Board
Main Board
Change 55
Main Board
Note
Change 56
Main Board
Heatsink changed Q505 and Q506 a capacitor added between Q282
collector and ground to improve trigger output .
For instruments with serial number 285 1G08949 and lower, make the
following changes to the appropriate parts-list :
In Appendix A, Table A-3 modify:
Al 081 1 2-665 1 1 MP500
In Appendix A, Table A-3 delete :
Al 081 12-6651 1 C283
For instruments with serial number 285 1G08699 and lower, make the
following changes to the appropriate parts-lists:
In Appendix A, Table A-3 modify:
A l 081 12-6651 1 Q282, Q283 XSTR PNP
This change is repeated by change 46
Component value change.
For instruments with serial number 285 1G09130 and lower, make the
following changes to the appropriate parts-list :
In Appendix A, Table A-3 modify:
Al 081 12-6651 1 C501
Reference Description
Heatsink
Reference Description
Capacitor
Reference Description
Reference Description
Capacitor
HP Part #
081 16-04151
HP Part #
0.001 µF 0160-3878
HP Part #
1853-0218
HP Part #
15 pF 0 160-4385
Backdating B-35