Lenovo S930 Manuel d'entretien - Page 12

Parcourez en ligne ou téléchargez le pdf Manuel d'entretien pour {nom_de_la_catégorie} Lenovo S930. Lenovo S930 33 pages.
Également pour Lenovo S930 : Manuel de démarrage rapide (6 pages), Informations importantes sur le produit Manuel (20 pages)

LENOVO S930 Cellphone Service Manual

Replace speaker. Retry to see whether it

rings.

Check whether audio power amplifier on

antenna sub-board has a dry joint problem

or is damaged. Repair soldering or replace

it. Try again to see whether it rings.

Check whether the connections of the main

FPC connectors are OK.

Test with earphones. If there's sound in

earphones, then there is audio signal

input. Check whether the components

related to the audio power amplifier have

dry joint problems. Re-solder. Check

whether the problem is fixed.

Check PMU chip U1201. If it's damaged,

replace it.

It does not ring.

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