LG GT500 - Page 145

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
RF3300
Phone
Oscilloscope
Notebook to send
TP command
Figure 4-29. Connection for Checking Control Signal
Figure 4-28-2. Schematic (Control Signal)
TP1 [RF_CTRL_STR1]
TP2 [RF_CTRL_DATA]
TP3 [RF_CTRL_CLK]
STR
10
CLK
12
11
DATA
8
EDATAA
EDATAB
9
EDATAC
6
EDATASTR
7
U
1
RF
3
R141
DNI
RF_CTRL_CLK
RF_CTRL_DATA
RF_CTRL_STR_1