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Depart. Technical support- CM640
PHILIPS Consumer
Communications
Centre du Mans
10.5
Polyphonic Buzzer problems
Polyphonic Buzzer tone can be checked with the test SIM card by pressing key "0".
- If it does not sound properly dismantle the mobile change the antenna which contains Buzzer. If the problem
remains swap the board.
10.6
No sound in Loudspeaker
The sound from the loudspeaker can be checked with the test SIM card by pressing key "3".
- Check the microphone and the earpiece, If needed dismantle the product change the loudspeaker (so LCD
Module) then the microphone. If the audio problem cannot be solved, swap the board.
10.7
Communication problems
- Sound quality can be checked in audio loop test (sound distortion, whistling, echo, ...)
- If the mobile passes the radio tests successfully, we can assume that the phone works properly. The customer
must check the coverage area of his network operator or that he does not use the phone in a radio shadow
(outside the coverage area, in a tunnel or between tall buildings, ...)
- If the mobile does not pass the radio tests, swap the board.
10.8
Keyboard problems
-The keyboard can be checked with the test SIM card.
- If a key or a row does not respond, check the keyboard and keyboard connectors. If needed, dismantle the
product, change the keypad. If the problem remains, swap the board.
10.9
Problems to send MMS/SMS messages or to download JAVA application.
Check the Center number for SMS/MMS and all network parameter like Wap for MMS/JAVA. It may be empty or
wrong.
10.10
IRDA Problems
If IRDA function test is bad and If it cannot be solved, swap the board.
10.11
Camera Problems
- If Test Camera is not. Dismantle the product, check the LCD module which contains Camera and if it is
necessary, change LCD Module.
If the Camera problem cannot be solved, swap the board.
PHILIPS ELECTRONICS N.V. 1999
All rights reserved. Reproduction in whole
or in part is prohibited without the written
consent of the copyright owner.
PROCEDURE
Service Repair Support
COMPANY RESTRICTED
VY-V-640-P655
Page : 72 of 74
Langue : EN
Date : 03/01/05
VY-V-640-P655
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