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Confidential
Troubleshooting
No Power (cont’)
Step
Check point
Result value
Defect point
7
Check the frequency of TCX2000
26MHz
Main chip (UCP400)
If not the correct value
X-TAL (TCX2000)
Step6
U5004
C5006
=1.8V
TCX2000
=26Mhz
Step5
U5003
C5023 = 3.8V
Step7
UCP
400