View Full Version : R310....low level buzzer
Hi Guys,<br /> I have 2 phones with the same symptom. Ringing of buzzer is too low even if I set level to highest.<br /> I tried change buzzer & 2 amplify transistors.<br /> But nothing....ringing is still too low.<br />Have anybody idea?
thanx
Vicky
plese, have anybody service manual for Ericcson R310?
thanx
Vicky
Hanukkah
10-20-2001, 04:17
hi! there is a transistor Ic near or below the buzzer. it amplifies the ring signal.
Hi Hanukkah,<br /> thanks for your answer. As I said i tried change 2 transistor located in the left side from buzzer, but no success.<br /> Please can you explain me, what transistor Ic do you mean? In upper side of PCB I see only this 2 transistors, eeprom and Ic for illumination of keyboard.<br /> thanx for your answer friend.
Vicky