Samsung GT-E2550 - Page 36

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Flow Chart of Troubleshooting
9-4
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9-1-2.
Initial
Initial Failure
Is the RST Pin#A10
(
RSTON)
of
UCP200
"
Low
→
High"
?
Check the UCP200
(
if it has some problem
s,
replace it
.)
Yes
No
The Pin
#
N8,N9,N10,N11(VBAT)
of PM300
>= 3.4V
Yes
No
Check the UCP200
(
if it has some problem
s,
replace it
.)
There is
32.768
kHz wave
-
forms at the C241 and C242
of OSC200
Yes
No
Check the UCP200
The voltage is
"
High" at the
C215
,
C223
Check the UCP200
LCD display is O.K
No
Yes
Yes
Check the LCD part
No
Sound is O.K
Yes
No
Check the AUDIO part
END
Yes