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TM 11-5820-890-20-2
2-38
2.2.
TROUBLESHOOTING FLOWCHARTS. Continued
Chart 7
AM 1780 RELAYS CLICK AND NO SIDETONE HEARD
AT EVERY TESTED POSITION OF MONITOR SWITCH.
(Sheet 1 of 1)
REPLACE AM 1780.
START
NO
YES
RELAYS CLICK
AND SIDETONE
HEARD IN HS
?
REPLACE CONTROL BOX C 2297/C 2298 WHERE
FAILURE OCCURED, WITH KNOWN GOOD
C 2297/C 2298.
REPLACED C 2297/C 2298
IS BAD.
NO
YES
RELAYS CLICK
AND SIDETONE
HEARD IN HS
?
REPLACE ASS0CIATED CX 4723/7060, WITH
KNOWN GOOD CX 4723/7060.
REPLACED CX 4723/7060 IS
BAD.
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