3330 Buzzer dead after dampness - GSM-Forum

[Dennis199] · 08-03-2003, 01:17

I had my 3330 in my pocket while skiing

And it must have caught some damp, probably through the buzzer hole cause I can see some trace of water on the PCB. I´ve tried a PCB from a 3310 and the buzzer itself works fine. And the vibrator works too. I understand that the buzzer and the vibrator operates by the same circuit. Any ideas???

Best regards
// Dennis

hightechsquare · 08-04-2003, 15:05

may you explain more

Jani-Jan · 08-04-2003, 20:56

yes both controled by the same ic

-=SanSanyc=- · 08-04-2003, 22:44

see Multiproc in down layout of Plata. If i remember Buzzer use GND and Direct Pin 7 of IC.

vule · 08-05-2003, 16:49

Wrong !!!

Pin 6 is a buzzer out, pin 7 is lcd led control !!! Buzzer use VBB and pin 6 of NMP70433 !!!

And most probabily IC is ok...Check if You have VBB on other pad for buzzer. One goes to pin 6, other to VBB ...That is common fault on phones with water damage.

BR

Vule

Moviltuning · 08-05-2003, 18:41

Check this link:

http://www.moviltuning.net/index.php...=page&SubMenu=

Best regards

[Dennis199] · 08-05-2003, 23:03

Thanx alot everyone! I soldered a wire from pin 6 to one of the pads for the buzzer and it worked again!!!
Thank you!!

// Dennis

08-03-2003, 01:17	#1 (permalink)
[Dennis199] Junior Member Join Date: Aug 2003 Posts: 5 Member: 36138 Status: Offline Thanks Meter: 0	3330 Buzzer dead after dampness I had my 3330 in my pocket while skiing And it must have caught some damp, probably through the buzzer hole cause I can see some trace of water on the PCB. I´ve tried a PCB from a 3310 and the buzzer itself works fine. And the vibrator works too. I understand that the buzzer and the vibrator operates by the same circuit. Any ideas??? Best regards // Dennis

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08-04-2003, 15:05	#2 (permalink)
hightechsquare No Life Poster Join Date: Jun 2003 Location: в.мое& Age: 46 Posts: 819 Member: 32779 Status: Offline Thanks Meter: 90	may you explain more

08-04-2003, 20:56	#3 (permalink)
Jani-Jan No Life Poster Join Date: Jan 2003 Location: GMT +5 Age: 49 Posts: 1,230 Member: 19737 Status: Offline Thanks Meter: 133	yes both controled by the same ic

08-04-2003, 22:44	#4 (permalink)
-=SanSanyc=- Freak Poster Join Date: Aug 2002 Location: CZ: Praga, BY: Minsk Age: 56 Posts: 448 Member: 14640 Status: Offline Thanks Meter: 0	see Multiproc in down layout of Plata. If i remember Buzzer use GND and Direct Pin 7 of IC.

08-05-2003, 16:49	#5 (permalink)
vule No Life Poster Join Date: Apr 2002 Location: Radiometer Medical ApSBrønshøj Age: 51 Posts: 721 Member: 10854 Status: Offline Sonork: 1578988 Thanks Meter: 3	Wrong !!! Pin 6 is a buzzer out, pin 7 is lcd led control !!! Buzzer use VBB and pin 6 of NMP70433 !!! And most probabily IC is ok...Check if You have VBB on other pad for buzzer. One goes to pin 6, other to VBB ...That is common fault on phones with water damage. BR Vule

08-05-2003, 18:41	#6 (permalink)
Moviltuning Freak Poster Join Date: Jul 2003 Location: Spain Age: 46 Posts: 164 Member: 34289 Status: Offline Thanks Meter: 1	Check this link: http://www.moviltuning.net/index.php...=page&SubMenu= Best regards

08-05-2003, 23:03	#7 (permalink)
[Dennis199] Junior Member Join Date: Aug 2003 Posts: 5 Member: 36138 Status: Offline Thanks Meter: 0	Thanx alot everyone! I soldered a wire from pin 6 to one of the pads for the buzzer and it worked again!!! Thank you!! // Dennis