Ericsson I888 free download

File name I888.pdf

I888, Standard Electrical Repairs Approved according to 1776-2/FEA 209 544 Trouble-shooting instruction I 888 Standard electrical repairs 4-00021-2/FEA 209 544/5.C I888, Standard Electrical Repairs Table of contents 1 Conditions ... 3 2 No serv or canґt place call. ... 6 3 Doesnґt start. ... 10 4 Audio ... 15 5 Display fault ... 21 6 Charging fault ... 24 7 SIM fault (Insert card) ... 27 8 Keyboard ... 29 9 Illumination and buzzer. ... 33 10 RTC (Real Time Clock) ... 38 11 IRDA fault. ... 40 12 Component list ... 42 4-00021-2/FEA 209 544/5.C 2 (42) I888, Standard Electrical Repairs 1 Conditions 1.1 Component classifications. After each component, which fault can be verified by the troubel-shooting guides in this folder, is the components classification written. The components are divided in four classes, A,B,C and D. The classes are seperated depending on how much of the phoneґs prestanda that is affected by changing the component. Class A and B:Changing the component doesnґt affect the prestanda that much, you only have to do a test call toward a real network before you perform a function test after replacing it. Class C: The phone has to be calibrated at station level after changing the com- ponent, since the components tolerances are so large it can affect the prestanda of the phone. Class D: It demands advanced equipment and calibration at board level and because of that class D-components canґt be replaced. 4-00021-2/FEA 209 544/5.C 3 (42) I888, Sta