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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 Buzzer. If the problem remains swap the board.
1
0.6
No sound in Loudspeaker
The s
ou
nd from the loudspeaker can be
- Check the microphone and the earpiece, If needed
microphone. If the audio pro
10.7
Communication problems
-
Sound quality can be checked in audio loop test (sound distortion, w
-
If the mobile passes the radio tests successfully, we can assume that the phone works properly. The customer
m
ust check the coverage area of his network operator or that he does not use the phone in a radio shadow
(o
utside 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. If needed dismantle the product change the keypad and
check the keypad flex connector.
the problem remains, swap the board.
1
0.9
Problems to send MMS/SMS m
Check he Center number for SMS/MMS and all network parameter like Wap for MMS. It ma
t
10.10
FM Problems
You had to check product Headset connector (Pos: 1660) and Headset
To do that, connect a reference Headset to cust
- If Reference Headset is not working, Problem must come from product, so change Headset connector if
necessary.
- If Reference Headset is working, to be sure that problem come from Customer Headset; try it wit
reference product and If Customer Headset is still not working, Change it.
If
the FM 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
checked with the test SIM card by pressing key "3".
blem cannot be solved, swap the board.
Change Acoustic Assembly if necessary which contains keypad flex connector If
essages
omer product.
dismantle the product change the loudspeaker then the
histling, echo, ...)
COMPANY RESTRICTED
VY-V-640-P530
Page : 62 of 64
Langue : EN
Date : 21/07/03
y be empty or wrong.
VY-V-640-P530
h a
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