PAGE 17 (34) Approved 1.0Nokia Mobile Phones Customer Care E&A SQX 00306-en MWyTechnical Services, Repair Concepts Confidential 20.11.20015.3 No phone audio with headsetNo phone audiowith headsetCheck andclean pads ofSystemConnector(MU4, bottomside)ok ?Change UImodule MU4I017ok ?Send toService Center No Yes EndChangesystemconnectorX200ok ?NoCheck springcontacts ofboard to boardConnectorJ301 (MU4,bottom side)- connection- optical condition- mech. condition- corrosionCheck andclean pads ofboard to boardConnector(MA4, topside)Check springcontacts ofSystemConnectorX200 (insideB-Cover)- connection- optical condition- mech. condition- corrosionYesService Manual 5510 Level 2 Copyright 2001 © Nokia Mobile Phones