Sony Ericsson K750 Troubleshooting Manual, Mechanical page 24

Problem Area
Items to Check
Visually inspect speaker's external port
No sound or poor
quality sound
Visually inspect the speaker's dust cloth
Visually inspect the speaker's contact
pads on the PCB
4/000 21-1/FEA 209 544/94 C
©
Sony Ericsson Mobile Communications AB
Repair Action
•
If clogged – Clean it.
•
If dirty or damaged - Replace antenna cover.
•
If dirty or oxidized- Clean pads.
Trouble Shooting Guide, Mechanical
Reference Image
24(33)