LG KU580 Service Manual - Page 134
Schematic Control Signal, Connection for Checking Control Signal
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4. TROUBLE SHOOTING 11 WBCLK 12 GNDA11 13 RF_CTRL_STRB RF_CTRL_DATA R206 100K TESTOUT 1.5mm pad MCLKREQ TP200 3 GNDA7 4 TXHB 5 GNDA9 6 STR RF3 7 DATA 8 CLK 9 TESTOUT 10 MCIKREQ RF_CTRL_CLK X200 4 3 1 2 Figure 4-28-2. Schematic (Control Signal) Oscilloscope Notebook to send TP command Phone Figure 4-29. Connection for Checking Control Signal Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 135 - LGE Internal Use Only
- 135 -
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
1.5mm pad
100K
R206
TP200
STR
6
9
TESTOUT
TXHB
4
11
WBCLK
13
3
GNDA7
5
GNDA9
MCIKREQ
10
CLK
8
7
DATA
12
GNDA11
X200
1
2
3
4
RF3
RF_CTRL_CLK
RF_CTRL_DATA
MCLKREQ
RF_CTRL_STRB
TESTOUT
Phone
Oscilloscope
Notebook to send
TP command
Figure 4-28-2. Schematic (Control Signal)
Figure 4-29. Connection for Checking Control Signal