Checking Pll Control Signal - LG C3100 Service Manual

4.2.3 Checking PLL Control Signal

Graph 4-4
Check TP 401. Level is High?
Check TP 402, 403,
404. Check if there is
Any Major Difference
Refer to Graph 4-5
Control Signal i s OK
See next Page to check
ANT SW & Mobi le SW
- 39 -
Figure 4-5.
No
Download the SW
Yes
No
Download the SW
Similar?
Yes
Graph 4-5
4. TROUBLE SHOOTING
S_DATA (TP404)
S_CLK (TP403)
S_EN (TP402)
PDNB (TP401)