GB310 Service Manual
1
PANTECH
6.5.4 VCTCXO
Step
Test
point
Typical Value
Condition
Reaction to Abnormality
4-1
U302
Pin#1
0.5V ~ 2.5V
2, 3, 4, 5
Check route connection : AFC
4-2
U302
Pin#4
2.8V
2, 3, 4, 5
Check route connection : VTCXO
Fig.6-8. U302 VCTCXO Check Point Circuit
Fig.6-9. U302 VCTCXO Check Point on the PCB Layout
4
STEP 4-1
STEP 4-2
