System Initial - Samsung SGH-B100 Service Manual

10-1-2. System Initial

Initial Failure
The pin #G11 of UCP300 =
1.8V and
the pin #J12 of UCP300 =
2.8V ?
Is the pin #K9 of UCP300
"Low → High" ?
There is 32.768kHz wave
forms at the C221 and
The voltage is "High" at
the C316,C317,C318
LCD display is O.K
Sound is O.K
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Yes
Yes
Yes
C222
Yes
Yes
Yes
Yes
END
No
Check the
(if it has some problem, it is to be replaced.)
No
Check the
(if it has some problem, it is to be replaced.)
No
Check the
No
Check the
No
Check the LCD part
No
Check the Audio part
10-3
Flow Chart of Troubleshooting
UCP300
UCP300
UCP200
UCP300