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SGH-D800 Flow Chart of Troubleshooting
2-
6
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2-1-2. Initial
Initial Failure
The pin #C12 of U101 =
1.8V and
the pin #J12 of U101 =
2.8V ?
Check the
U101
(if it has some problem, it is to be replaced.)
Yes
No
Is the pin #K9 of U101
"Low
→
High" ?
Yes
No
Check the
U101
(if it has some problem, it is to be replaced.)
There is 32.768kHz wave
forms at the C216 and
C217
Yes
No
Check the
U201
Is the pin #3 of U106 &
U107 "High"?
The voltage is "High" at
the C111,C116,C117
Check the
U101
Check the
U106 & U107
LCD display is O.K?
No
No
Yes
Yes
Yes
Check the LCD part
No
Sound is O.K?
Yes
No
Check the Audio part
END
Yes
Summary of Contents for SGH-D800
Page 48: ...6 1 6 SGH D800 Block Diagrams ...
Page 49: ...SGH D800 Block Diagrams 6 2 ...