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Philips DVP721VR Service Manual page 20

Dvd-vcr
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(4) KEY doesn't working
KEY doesn't working.
Is 5V applied to the IC501
Pin36?
YES
Does LED or FLD change
when a function button is
pressed?
NO
Refer to "SMPS 5.3VA
Trouble Shooting".
NO
Replace the defective
switches.
3-10

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