Initial - Samsung SGH-M110 Service Manual

Service manual for digital telephone
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9-2. Initial

Initial Failure
Check VDD1, VDD3=1.8V,
VDD2=2.8V and
AVDD=2.6V of UCP 200
Check D_REF_13M of
Yes
OK
UCP 200
OK
END
C320
C319
C313
C312
C311
C309
C303
C301
C300
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Not OK
Not OK
Check U102 and POWER ON Sequence
R304
R305
R303
C304
C307
C302
9-3
Flow Chart of Troubleshooting
Check U300
D600
TA300
R301

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