Lenovo i909 Bakım Kılavuzu - Sayfa 25

Cep Telefonu Lenovo i909 için çevrimiçi göz atın veya pdf Bakım Kılavuzu indirin. Lenovo i909 32 sayfaları.

Lenovo i909 Bakım Kılavuzu
I908 Mobile Phone Maintenance Manual

4.3.2 Significant frequency error

Problem: Frequency errors during the testing of the unit exceed norms.
Cause of the Problem: 1) Problems with AFC calibration
2) Crystal was reversely attached. Damage or pseudo soldering
Faults Solution:

4.3.3 Significant phase error

Problem: The phase error during the testing of the unit exceeds norms and the ORFS
spectrum exceeds norms between 0-10 bits.
Frequency Error exceeds the
norms
Recalibrate
Check X21015 for possible
pseudo
soldering
Replace elements with
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