Panasonic KX-F680BX - Page 71

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TROUBLESHOOTING GUIDE
KX-F680BX/KX-F2681BX
(2) Troubleshooting flow chart
Our recommendation for troubleshooting is as follows.
This procedure comes from our experience of troubleshooting in our lab.
ƒ Before turning on the power supply, you should check F101.
Is F101 open?
Replace F101.
D101 is short.
D-G (Q101) short?
Replace Q101, D104,
R107, R106, R121 and
IC101.
Replace D101.
(Next Page)
YES
NO
YES
NO
YES
NO
D-S (Q101) short?
Replace Q101.
YES
NO
S-G (Q101) short?
Replace Q101.
YES
NO