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DESICCANT
'9240-0007
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RETAINING SPRING·
1460-0213
Figurel
s.
Dessic~nt Assembly
NOTE
'Desiccant found on 8731A thru 8,735A,
and 8731B thru 8735B with serial prefix
815-
ESCUTCHEON
, 0'8731-2028
\~
...
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RETAINING SCREW
08731"'216
'
'Test Equipment Required.
The test equipment re-
quired to make the performance tests are listed' in.
Table 3. .Instruments and'accessories other than the
ones listed may be used provided their. perfor- .
mance equals or exceeds the Critical Specifications.
tests areperforDled' withou] access to the
PIN Mod-
ulator 'interior; .there' is
I
no need to remove
PIN
.Modulate»
f~r··
performance checks. The specifics- ,
tions of Table .1 are the performance .standards.
.
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Checking Dessicant
. Inspect desiccant regularly (Figure
15).
and, if it is
pink ~r, red in color, either ~'\~move and dry it o~ re-
place It'.
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. Performance Che'cl<
' ::
~orpose.
The procedure detailed, in Table
2
checks
PIN, Modulator performance for incoming inspec-
tion, periodic evaluation.jmd troubleshootmg, The
Bias Input 'Check and Repair
11\ .
ny
part of
the
bias-input assembly (Figure
16)
is 'damaged, it can be replaced separately. However,
'it is good practiceto replace, the entire assembly.
. To 'check bias input assembly, remove. the ;PIN
.
Modulatorandm~asure
its resistance with an
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ohmmeter: straight through the filter resistance
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shouldpe less' than 5 ohms; resistance between,
':QNG center conductor and 'shell should be infinite.
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RETAINING SpRING
1460-0213
ESCUTCHEON
0873l-2028
, CONTACT*
08731-206
FILTER BODY*
I '
08731-20;4' (8731/32)'
i
08733-225 (8133/34/35),
*PART OF fiLTER, BIAS ASSEMBLY
08731-600 (8731 AND 8732)
08733-~05
(8733,8734,ANO 8135)
CAPACITdft, FIXEQ*
08731-2027 .
~
\
,SOFT
\. . '
SuLDER
CONNECTOR,
Bi~~C*""
&PR'NG~
1250':'O!~5"
COMPRESSION
1'460;~O'212
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i';gurc'16;
Bias input Assembly
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