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Page Title:
CHART 2-15. Transmitter Tone Modulation Troubleshooting (Sheet 1 of 2) |
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|  TM 11-5820-670-30
2-26. TROUBLESHOOTING CHARTS. (CONT)
CHART 2-15
Transmitter Tone Modulation Troubleshooting
(Sheet 1 of 2)
PER FORM TEST PROCE-
CONNECT EQUIPMENT AS
DURE OF TRANSMITTER
SHOWN IN TRANSMITTER
DEVIATION NARROW BAND
TONE MODULATION PER-
PERFORMANCE TEST.
FORMANCE TEST (PARA
PLACE TRANSMIT SWITCH
PERFORM 150 Hz TONE
ON TEST SET TO ON. CHECK
MODULATION FREQUENCY
DC VOLTAGE AT TP8706.
AND DEVIATION ADJUST-
SEE ILLUSTRATION, SH 2.
MENT (PARA 2-32).
SET TRANSMIT SWITCH ON
PERFORM TRANSMITTER
TEST SET TO ON. CHECK
TONE MODULATION PER-
AC VOLTAGE AT TP8707.
FORMANCE TEST (PARA
SEE ILLUSTRATION, SH 2.
PERFORM TONE SQUELCH
SENSITIVITY TEST (PARA
REPLACE AUDIO MIXER
MOOULE A8600 (PARA 2-45).
PERFORM TRANSMITTER
TONE MODULATION PER-
REPLACE RELAY K5501
REFER TO TROUBLE-
SHOOTING CHART 2-12.
FORMANCE TEST (PARA
2-95
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