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Page Title:
CHART 2-7. Audio Distortion Troubleshooting (Sheet 1 of 2) |
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|  TM 11-5820-670-30
2-26. TROUBLESHOOTING CHARTS. (CONT)
CHART 2-7
Audio Distortion Troubleshooting
(Sheet 1 of 2)
PERFORM AUDIO LEVEL
ADJUSTMENT (PARA 2-30).
THEN PERFORM AUDIO
POWER OUTPUT PERFOR-
MANCE TEST (PARA 2-5).
CHECK DISTORTION AT
TP4007 ON IF. AMPLIFIER
ASSEMBLY. SEE ILLUSTRA-
TION, SH 2.
REPLACE AUDIO AMPLIFIER
ADJUST (PARA 2-30).
MODULE A5400 (PARA 2-44).
REPLACE AUDIO AND
SQUELCH PREAMPLIFIER
MODULE A4300 (PARA 2-41).
PER FORM AUDIO POWER
REPLACE LIMITER AND
OUTPUT AND DISTORTION
DISCRIMINATOR MODULE
PERFORMANCE TEST (PARA
A4200 (PARA 2-41).
7-5).
2-81
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