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Dia nostics
ATTENGAIN:
h
ADDRESS
j
k
w
EXPECTED
x
y
z
k:
encodes the index of the attenuator with the most negative (i.e., lowest) gain error.
Z:
encodes the index of the attenuator with the most positive (i.e., highest) gain error.
k or Z
Attenuator Range
0
Xl
1
XlO
2
XlOO
STEP GAIN:
h
ADDRESS
j
k
w
EXPECTED
x
y
z
k:
encodes the index of the M377 step gain range with the lowest gain error.
Z:
encodes the index of the M377 step gain range with the highest gain error.
korZ
0
1
2
3
4
5
M377 Step Gain Range
1 mV/div
2mV/div
SmV/div
lOmV/div
20mV/div
SOmV/div
BWLMATCH:
h
ADDRESS
j
k
w
EXPECTED
x
y
z
k:
encodes the index of the bandwidth limit setting which has the lowest bandwidth limit gain error.
Z:
encodes the index of the bandwidth limit setting which has the highest bandwidth limit gain error.
4-18
korZ
0
1
2
Bandwidth Limit Setting
20MHz
lOOMHz
Full
11A52 Extended Service Manual
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Troubleshooting
