SH888, S868, Standare Electrical Repair
4/00021-2/FEA 209 544/3.D
18
(66)
4 Audio.
4.1 Type of fault.
Connect a call to another phone and check the microphone and the earphone.
Connect a handsfree to the phone and check the external microphone and the exter-
nal speaker.
•
If only the earphone is silent or the sound is intermittent, proceed to section 4.2.
•
If you can’t be heard at the other end when the phone isn’t used with a handsfree,
proceed to section 4.3.
•
If there’s only no sound in the handsfree speaker, proceed to section 4.4.
•
If you can’t be heard at the other end only when the phone is used with a hands-
free, proceed to section 4.5.
•
If neither the microphone nor the speaker works in the handsfree, proceed to sec-
tion 4.6.
•
If both the microphone and the earphone works only when using the phone in the
handsfree, proceed to section 4.7.
•
If the sound is distorted, “chopped”, scrambled, full of static or similar, proceed
to section 4.8.
•
If the mute function is faulty, proceed to section 4.9.
•
If there is a fault that doesn’t fit into the descriptions above, proceed to section
4.10.
4.2 Earphone fault.
Open the phone and check for liquid damages. If there is no liquid damage, replace
the front and try again.
•
If the fault remains, replace J810 (fig. 4.1, class A) and try again.
Fig. 4.1