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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > Nokia > Nokia Hardware & Hardware Repair

Nokia Hardware & Hardware Repair all what you need for Hardware Repairing for Nokia Phones. Before writing any thread here try to check the Frequently Asked Questions Section.

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Old 10-07-2002, 21:42   #1 (permalink)
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3310 not vibrate


i have a 3310 that does not vibrate. i have changed vibrator. ui chip (n400) upgraded software. but still no luck.
please help
[email protected]
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Old 10-07-2002, 21:54   #2 (permalink)
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HI wildwhacker ,

You need to check PCB pad VB is good ? ( if VB no good, led will light too), and check at R401 from vibra connect to N400 pin 16 !

others problem is MAD

Willy
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Old 10-07-2002, 22:57   #3 (permalink)
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i have checked as you said, its a mad problem. not to worry the customer has said bin it. so i will keep it for spares. worth more that way anyhow.
once again cheers willy
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Old 11-05-2002, 23:16   #4 (permalink)
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3330

3330 no vibra, also bottem leds not light.
Seems outer vibrate pad on pcb has no connection to anywhere..
any idea?
Inner pad is connected to R401 to ui

thanks
Sjakie
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Old 11-06-2002, 00:34   #5 (permalink)
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Re: 3330

Sjakie ,

try to measure that N400 pin 1 , it must has VB + !

if no then all LED for will not light on , then you have to check CCONT VB out !

i think, your phone was water damage ?

Willy

Quote:
Originally posted by sjakie
3330 no vibra, also bottem leds not light.
Seems outer vibrate pad on pcb has no connection to anywhere..
any idea?
Inner pad is connected to R401 to ui

thanks
Sjakie
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Old 11-06-2002, 01:31   #6 (permalink)
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Hey
The outer Vibra pad has to be connected to the VB line and should have 3.6v. You have to check it when the phone is on. If your not getting 3.6v then you have a cracked PCB. I have repaired many phones like this using enameled copper wire, just solder the vibra pad to the nearest VB component.
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Old 11-06-2002, 21:06   #7 (permalink)
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This is the easy solution , most case water dammage:

check conyinuity test on vibrator interface to n400

left to to pin 1 ( in most case ) or right to pin 16 ; if no sound , make a short to rebuilt the lining

Tested by me on many phones

***LUCK
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Old 11-07-2002, 00:06   #8 (permalink)
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Fixed

Hi, Guys.
Thanks for replys.

Yes, i removed Cobba and it was water dammaged.
I reballed it, leds were working again except (backside vieuw)
lcd led right and left bottem led were off.

Again no buzzer.
reconnect leds with led that was beside them and connected
left VB pad to pin 1 N400.

Now its OK )
Now a liile low RX but will flash again and see.
(after reballing cobba i second time reflow cobba, that i should not have done, could also explain lower rx)

Thanks
Sjakie
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