Vctcxo - Pantech PG-3210 Service Manual

PG-3210 Service Manual

6.5.4 VCTCXO

Test
Step
point
U704
4-1
Pin#1
U704
4-2
Pin#4
STEP 4-2
STEP 4-1
4
Fig.6-7. U303 PAM TXEN and DCSSEL Test Point on the PCB Layout
Typical Value
0.5V ~ 2.5V
2.8V
Fig.6-8. U302 VCTCXO Check Point Circuit
Condition
1,2,3,4,5,6,7 Check route connection : AFC
1,2,3,4,5,6,7 Check route connection : VTCXO
1
PANTECH
STEP 3-2
STEP 3-1
Reaction to Abnormality