By NCK Team
L2 Repair Document
TCT
Mobile Limited
Rev.
one touch 930D Level 2 Repair Document
Page
1.0
27/33
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Audio
Bad or no emission (TX
audio from mobile);
Bad or no reception (RX
audio on mobile);
Hands-free problem;
Key beep and melody
problem
Check microphone, replace it if
necessary;
Check the contact on the PCBA (dirty or
oxidized)
Check loud speaker, replace it if
necessary;
Check the contact on the PCBA (dirty or
oxidized)
In case the Level 2 repair can’t solve the problem, or the PCBA is damaged, exchange the PCBA.
7 PCBA exchange
If Level 2 repair does not solve the failure, it is mandatory to change the PCBA and follow the process as
below.
1) Collect the PCBA (without accessories, LCD and camera), with microphone and vibrator.
2) Get a new PCBA from the swap stock. Reuse those accessories to assemble the mobile.
3) Fill in the record sticker with IMEI number, fault code, short code, Hardware Technical Level and
software version.
4) Send the NG PCBA with record sticker back to L3 repair center with the recommended packaging
method,
Note:
packaging method please refer item “12. Packaging requirement”.
8 Other component exchange
The other components exchange such as
1) LCD
module
2) Touch
lens
3) USB
connector
4) FPC
connector
5) Receiver
6) Speaker
7) Microphone
8) Main
Camera
