LG VX8350 Service Manual page 65

VX8350
Replace X100 and then check R106, C140
Figure 4.2.1 (a)
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Only for training and service purposes
Checking Flow
Checking Flow
Start
Check X100 pin3(TP1)
Is it 19.2MHz? (Refer to
figure 4.2.1 (a))
NO
Check X100 pin4(TP2)
Is it 2.85V? (Refer to
figure 4.2.1 (b))
YES
Is it similar?
NO
Waveform
YES
NO
YES
Waveform
Figure 4.2.1 (b)
64
y
t t
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