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MX8550
Check if there is any major difference referring
Check if there is any major difference referring
Figure 4.1.1 (c)
LG Electronics Inc.
Checking Flow
Checking Flow
Start
Check pin49, 50, 51 at U110
To Figure 4.1.1 (c), (d)
NO
Redownload S/W
Check pin49, 50, 51 at U110
To Figure 4.1.1 (c), (d)
NO
Replace Main B /D
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
Waveform
Waveform
Figure 4.1.1 (d)
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