HP 8112A Operating, Programming And Servicing Manual page 368

Change 5 1
Main Board
Change 52
Main Board
Change 53
Main Board
B-34 Backdating
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:
In Appendix A, Table A-3
Al 08112-665 11 Cl41
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 :
In Appendix A, Table A-3
Al 081 12-66511 R410
Heatsink added to Q282.
For instruments with serial number 285 1 G08780 and lower, make the
following changes to the appropriate parts-list :
In
Appendix A, Table A-3
Al 081 12-66511 MP201
delete :
Reference Description
Capacitor
modify:
Reference Description
Resistor
R41 1 Resistor
delete :
Reference Description
Heatsink
HP Part #
3 .3 pF 0160-4382
HP Part #
n
500 2100-0554
2.61 k 0698-7246
HP Part #
1205-0235