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14
KX-NS5171X/KX-NS5171SX/KX-NS5172X/KX-NS5172SX
8 Troubleshooting Guide
The card doesn't work.
Check for short of the power supply.
(The power supply should be OFF.)
Check for short
circuit of
F100,F101.
Short
OPEN
Replace F100,F101.
END
Replace the defective parts.
Replace the defective parts.
NG
NG
NG
OK
OK
OK
Replace the defective parts.
Replace the defective parts.
NG
NG
NG
OK
OK
OK
Check the test land
between [+2.5] and
between [+2.5] and
[GND].
Check the test land
between [+1.2] and
between [+1.2] and
[GND].
Check the soldering of
IC101
Check the soldering of
IC404
Check the soldering of
IC100
Check the soldering of
IC404
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