Audio - Ericsson I 888 Trouble-Shooting Instruction

4 Audio

4.1 Type of fault.
Make a call to another phone and check the microphone and the earphone. Connect
a handsfree to the phone, make a call and check external microphone and speaker.
• If only the earphone on the phone is silence or if the sound comes and goes, pro-
• If the recieving part can´t hear you but you can hear the recieving part, proceed
• If you can´t here anything when the handsfree is connected but the recieving part
• If the recieving part can´t hear you when the handsfree ic connected but you can
• If neither you or the recieving part can hear anything when the handsfree is con-
• If neither you or the recieving part can hear anything, but with the handsfree con-
• If the sound is disturbed, distorted, noisy or something like that, proceed to sec-
• If the mute function doesn´t work, proceed to section 4.9.
• If the fault doesn´t fit in to any of the points above, proceed to section 4.10.
4.2 Earphone fault.
Open the phone and check for liquid damages. If there are no, change the front
cover and try again. If the fault remains, replace J810 (Fig 4.1, class A) and try
again.
ceed to section 4.2.
to section 4.3.
can hear you, proceed to section 4.4.
hear the recieving part, proceed to section 4.5.
nected, proceed to section 4.6.
nected both can hear, proceed to section 4.7.
tion 4.8.
C816
F601
F600
F602
F606
4-00021-2/FEA 209 544/5.C
I888, Standard Electrical Repairs
C815
V805
R635
R605
R602
R727 V703
Fig. 4.1
C841
C840
C842
J810
15
(42)