Ericsson PF 768 Troubleshooting Instructions page 2

PF768, Standard Electrical Repairs
Table of contents
1 Conditions .......................................................................................... 3
1.1 Component classes. ......................................................................... 3
1.2 Abbreviations. ................................................................................. 4
1.3 Pin placements ................................................................................ 6
2 No serv/not able to connect calls. ..................................................... 8
3 Doesn't start. ................................................................................... 11
4 Audio. ............................................................................................... 21
5 Display. ............................................................................................ 29
6 SIM ("Insert card"). ....................................................................... 33
7 Keyboard ......................................................................................... 37
8 Illumination and buzzer. ................................................................ 42
9 RTC .................................................................................................. 50
10 Component lists ............................................................................... 52
10.1 Explanations .................................................................................. 52
10.2 Component list 2/ROA 117 3235/2 ............................................. 53
10.3 Mounting drawing table .............................................................. 67
10.4 Revision change table ................................................................... 67
4/00021-2/FEA 209 544/11.C
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