LG GT500 Service Manual page 145

4. TROUBLE SHOOTING
RF_CTRL_STR_1
RF_CTRL_DATA
RF_CTRL_CLK
Oscilloscope
LGE Internal Use Only
TP1 [RF_CTRL_STR1]
TP2 [RF_CTRL_DATA]
TP3 [RF_CTRL_CLK]
Figure 4-28-2. Schematic (Control Signal)
Figure 4-29. Connection for Checking Control Signal
Notebook to send
TP command
Phone
- 146 - Copyright © 2009 LG Electronics. Inc. All right reserved.
6
EDATAC
7
EDATASTR
8
EDATAA
9
EDATAB
10
RF3300
STR
11
DATA
12
CLK
Only for training and service purposes
U1
RF3