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TROUBLESHOOTING
6.4 Built in Mic Malfunction - B-board or H-board Switch – XR-83A80*
Built in mic doesn't work
Check Mic switch
ON
Check harness connection
between B-board and H-board
NG
Change harness
between
B-board to H-board
NG
Change H-board
NG
Change B-board
OFF
Turn on Mic switch
NG
OK
Harness connection
issue
OK
B-board to H-board
harness issue
OK
H-board issue
OK
Mic hardware switch issue
139
SYS SET
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