LG MG120a Service Manual page 47

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(5) Checking TX IQ
TEST POINT
U103
C134
Figure 10
CIRCUIT
CHECKING FLOW
C140
Check if there is
Any Major Difference
¨
Refer to Graph7
Redownload the Software
And calibrate
-47-
4. TROUBLE SHOOTING
WAVEFORM
Graph 7
No
Replace U201
Similar?
Yes

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