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91
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KX-F910BX
TROUBLESHOOTING GUIDE
YES
YES
YES
YES
No link (Base unit RX)
No link (Base unit TX)
NO
NO
NO
NO
YES
YES
YES
NO
NO
Is the data signal output to pin 1
of RF unit during conversation
with the portable handset?
Is the data signal output to
pin 3 of IC502?
Check Q509 and
IC501.
Check RF unit.
Check around
IC502.
Check around IC501.
Check around the
IC501.
Check around
NOISE AMP
(IC502).
NO
Is pin 68 of IC501
HIGH?
Check RF unit.
Is the ID data output from
CONT terminal during charging?
Check around
NOISE AMP
(IC502).
Does the IN USE flash
when the INTERCOM key is
pressed?
Is there data output of the
base unit from IC501?
Check pin 27~30 of IC501.
Does pin 68 of IC501 become
LOW when a signal is input?
Check around pin
27~30 of IC501.
6
7
Содержание KX-F910BX
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