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Only for training and service purposes
4. Trouble Shooting
4.15 Checking VCXO Block
The reference frequency (26MHz) from U102(Transceiver RF3000) is used
WCDMA TX part and BB part, Bluetooth part. Therefore, 3 test points in the following figure
should be checked.
Phone
Oscilloscope
Notebook to send
TP command
Connection for Checking VCXO Block
U102
Transceiver
X100
Crystal
RF3000
Main board : Top side
U302
Digital Base Band
DB3150
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