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Page Title:
CHART 2-9. Poor Sensitivity Troubleshooting (Sheet 1 of 2) |
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|  TM 11-5820-670-30
2-26. TROUBLESHOOTING CHARTS. (CONT)
CHART 2-9
Poor Sensitivity Troubleshooting
(Sheet 1 of 2)
PERFORM RECEIVER
SENSITIVITY ADJUSTMENT
DISCONNECT P4902 FROM
J4902 ON IF. ATTENUATOR
DISCONNECT P4901 FROM
WITH AN/URM-103 SET TO
J4901 ON IF. ATTENUATOR
11.5 MHz, 0.8 V, 8 KHz
A4900. CONNECT THE AN/
DEVIATION, CONNECT
OUTPUT TO P4902. SEE
URM-103 OUTPUT TO J4901.
ILLUSTRATION, SH 2.
SEE ILLUSTRATION, SH 2.
REPEAT RECEIVER SENSI-
REPLACE IF. ATTENUATOR
TIVITY, QUIETING AND
A4900 (PARA 2-61).
LIMITING PERFORMANCE
TEST (PARA 2-7).
REPLACE VHF TUNER
ALINE VHF TUNER
SEE TROUBLESHOOTING
ASSEMBLY A1000 MODULES
ASSEMBLY A1000 (PARA
CHART 2-5.
A1100 THRU A1500 (PARA
2-85
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