HP 8112A Operating, Programming And Servicing Manual page 187

Output Amplifier Tests
Overall Tests, Static
Overall Tests, Dynamic
E2 1
Offset generator is unable to produce positive offset . Possible failure
in Output amplifier or offset control circuit U l 7 to Ul9, U20 to U22,
or U27. See Chapter 10.4.
E22
Offset generator is unable to produce negative offset . Possible failures
as E21 .
These tests check pulse generation using the level check circuits.
E3 1
When software triggered
detected. Possible failure in signal transfer between:
•
Period generator U200
•
Delay generator U220
•
Width generator U240
•
Slope generator U301
•
Shaper IC U401
and output pre-attenuator and amplifier. Refer to Chapters 10.5,
1 0.3 and 1 0.4.
E32
When software triggered
detected. Possible failures as in E3 1 .
E3 3
When software triggered
detected. Possible failures as in E31 .
E34
When software triggered
detected. Possible failures as in E31 .
These tests check the accuracy of the output pulse rise and fall times
in normal output mode.
E35
When software triggered
limits. Possible faults in leading edge slope control circuit U12, U14
or U302. See Chapter 1 0.5.
Instrument Overview and Troubleshooting Guide 1 o. 1 - 7
( )
low , a fixed mode negative pulse is not
( )
low , a fixed mode positive pulse is not
( )
high , a fixed mode negative pulse is not
( )
low , a linear mode negative pulse is not
( )
high , rise time of 1 ms
(
Range 6) out of