GSM-Forum - Nokia 3310 Dead

GSM-Forum (https://forum.gsmhosting.com/vbb/)

- Nokia Hardware & Hardware Repair (https://forum.gsmhosting.com/vbb/f148/)

- - Nokia 3310 Dead (https://forum.gsmhosting.com/vbb/f148/nokia-3310-dead-98319/)

Hi all guys,
I am in a amazing problem. I have a NOKIA 3310 which is dead. I have changed the CCONT, but the problem still stand.
The voltages at R224 are not here, therefore i have changed the CCONT but no progress.
In this sitaution what do i do?
plz help me for this stupid problem.
thanks for all
bye.

if R224 no voltage, then check R221 VBB and R222 VREF ,or check all VB supply first !

Willy

Hi MR. Willy,
I want to know that what are the (VREF) & (VBB)? Are these voltages of power supply? If these are voltages then i have checked at R221 & R222, but there are no voltages. and i have checked the vb supply for example, i have checked the volts at C227 and C228, the volts are ok. and all ok but not just at R224.
In this situation plz tell me that what do i do?
plz help me
thanks bye.

Re: NOKIA 3310 Dead

Quote:

Originally posted by Shahrukh
Hi MR. Willy,
I want to know that what are the (VREF) & (VBB)? Are these voltages of power supply? If these are voltages then i have checked at R221 & R222, but there are no voltages. and i have checked the vb supply for example, i have checked the volts at C227 and C228, the volts are ok. and all ok but not just at R224.
In this situation plz tell me that what do i do?
plz help me
thanks bye.

Hi, in this case, i presume that your ccont is faulty.. is it the phone has liquid? if so check VBB line i.e. ( try to messure line from + terminal to + LED, is there linked ) VBB is positive lines,,,
sorry i should have the picture to show, bcos i am not in my workshop now,, contact me if u can't solve this problem..

regards
TMPC