Lenovo i909 Manual de mantenimiento - Página 25

Navegue en línea o descargue pdf Manual de mantenimiento para Teléfono móvil Lenovo i909. Lenovo i909 32 páginas.

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:

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

Page 25

LENOVO

reverse