![background image](http://html.mh-extra.com/html/samsung/sch-x359/sch-x359_service-manual_1190104005.webp)
Service Manual Online Homepage: http://manual.kmip.net/ Email: [email protected] ICQ: 343183001 QQ: 35070846
SAMSUNG Proprietary-Contents may change without notice
SCH-X359 Flow Chart of Troubleshooting and Circuit Diagrams
2-
3
This Document can not be used without Samsung's authorization
1-2. Abnormal initial operation (2.8V voltage source)
Press PWR button
Check VCTCXO Output.
No
Yes
Yes
END
No
PCM CLK applied to
U200 pin2?
Yes
RAM_CS signal ouputted
from U201 Pin J2?
No
Yes
CHIP X8 CLK signal
ouputted from U202 Pin
A14?
No
No
LED on?
Yes
Check the LED and its
neighboring circuits.
Replace if required
No
Normal initial display
on LCD?
Yes
Check the LCD pins and its
neighboring circuits.
Replace if required
Check U200 and its neighboring circuits.
Replace if required.
Check MSM board U202
Check MSM board U202
TCXO CLK signal
applied outputted from
U200 pin4?
Service Manual Online Homepage: http://manual.kmip.net/ Email: [email protected] ICQ: 343183001 QQ: 35070846