LG KF600w Service Manual page 43

Start
Check pin49, 50, 51 at U112
Check if there is any major difference referring
To Figure 4.1.1 (c), (d)
Redownload S/W
Check pin49, 50, 51 at U112
Check if there is any major difference referring
To Figure 4.1.1 (c), (d)
Replace Main B /D
Figure 4.1.1 (c)
Checking Flow
Checking Flow
NO
NO
Waveform
Waveform
Control signal is Ok . See next page
to check RF signal path .
YES
Control signal is Ok . See next page
to check RF signal path .
YES
Figure 4.1.1 (d)