Vctcxo - Pantech GB310 Service Manual

GB310 Service Manual

6.5.4 VCTCXO

Test
Step
point
U302
4-1
Pin#1
U302
4-2
Pin#4
STEP 4-2
STEP 4-1
4
Typical Value Condition
0.5V ~ 2.5V 2, 3, 4, 5
2.8V 2, 3, 4, 5
Fig.6-8. U302 VCTCXO Check Point Circuit
Fig.6-9. U302 VCTCXO Check Point on the PCB Layout
Reaction to Abnormality
Check route connection : AFC
Check route connection : VTCXO
1
PANTECH