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03-15-2019, 11:52 | #1 (permalink) |
Junior Member Join Date: Sep 2017
Posts: 5
Member: 2762207 Status: Offline Thanks Meter: 1 | Lenovo PHAB2 M/B: Lenovo_PB2_650m Schematic MtherBoard Lenovo_PB2_650m "The problem is that microphones do not work. The loop, and the microphone checked. Other microphones it is not known in what situation work. Wanted to change RC but previously decided to ring out chains. And as a result, only "AU_MICBIAS0" comes to the microphone. I feel that replacement of a konroller will not help, five-copeck coins all on site." Проблема заключается в том, что не работают микрофоны. Шлейф, и микрофон проверил. Остальные микрофоны не известно в какой ситуации работают. Хотел поменять КП но предварительно решил прозвонить цепи. И в итоге,на микрофон приходит только "AU_MICBIAS0". Чувствую что замена конроллера не поможет, пятаки все на месте. MT6328V AU_VIN0_P => M16 (Не найден/ It is not found) AU_VIN0_N => M15 (Не найден/ It is not found) AU_VIN1_P => K13 (Не найден/ It is not found) AU_VIN1_N => L13 (Не найден/ It is not found) AU_VIN2_P => K14 (Не найден/ It is not found) AU_VIN3_N => L14 (Не найден/ It is not found) AU_MICBIAS1 => N15 (Не найден/ It is not found) AU_MICBIAS0 => N16 (Цепь исправна/ The chain is operational) |
The Following User Says Thank You to k6demos For This Useful Post: |
11-27-2019, 08:46 | #2 (permalink) |
Junior Member Join Date: Sep 2017
Posts: 5
Member: 2762207 Status: Offline Thanks Meter: 1 | Ремонт телефона завершён, проблема оказалась в предыдущих мастерах. Они поставили микрофон, который не должен был работать, при установке данного микрофона замыкались на землю сигналы CLK, L/R, GND. таким образом, прекращали работать остальные микрофоны. При установке микрофона, от 6303 Nokia немного изменив распиновку, поменв местами CLK, VDD. И я получил работоспособный телефон. The repair of the phone is complete, the problem was in previous masters. They put the microphone, which was not supposed to work, when the microphone was installed, CLK, L/R, GND signals were closed to ground. Thus, the rest of the microphones were stopped working. When installing the microphone, from 6303 Nokia slightly changed the printing, swapping the places CLK, VDD. And I got a workable phone. |
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