Nokia 7280 サービスマニュアル

 RM-14

Nokia Customer Care

Baseband Troubleshooting and Manual 

Tuning

30

COMPANY CONFIDENTIAL

ISSUE 1 11/04

Copyright © 2004 Nokia. All Rights Reserved.

Loose speaker or

other component

inside telephone

Start

Music Player

Is noise

electrical or

mechanical?

Bad music file

Defective FM

module

Electrical

Mechanical

Is noise

associated with

FM tuner or with

Music Player?

Is noise

associated with

accessory?

Defective

accessory. Repair

or Replace

accessory

Yes

No

FM radio

Is noise

associated with

earpiece/IHF

(hand portable

mode)?

Yes

Defective

speaker.

Does error

occur both in
earpiece and

IHF?

Software error.

Defective or badly

tuned antenna.

No

No

Yes