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10. Flow Chart of Troubleshooting and Circuit Diagrams
10-
1
This Document can not be used without Samsung's authorization
10-1.Baseband
10-1-1. Power ON
'Power On' does not work
Yes
Check the current
consumption more
than 100mA
Download again
No
Yes
Charge the Battery
Check the VBAT
more than 3.4V
No
Yes
Check the VDD1 of
UCP700
Check
R702
and
UCP700
No
Yes
Check VIO of UCP700
Check
R711 of UCP700
and
UCP700
No
Yes
Check VPLL1 of
UCP700
Check
UCP700
and
C700
No
Yes
Check OSC401 pin#3
Freq = 26MHz
Check the clock generation
circuit(
OSC401
)
No
Yes
END