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| 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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10-22-2002, 21:51
| #1 (permalink) |
| Insane Poster  Join Date: Oct 2002
Posts: 72
Member: 16859 Status: Offline Thanks Meter: 0 | 3310 power on then 1-2 sec lost network Power on phone after 1-2sec losing network I have tryed to rehot all CCON, HAGAR PA and phone is totaly dead Any idea?? |
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10-23-2002, 02:36
| #2 (permalink) |
| Freak Poster  Join Date: Feb 2002 Location: davao, philippines Age: 43
Posts: 247
Member: 9398 Status: Offline Thanks Meter: 1 | hs_, check again ccont, hagar and pa.. maybe sumtin wrong happend while you were reflowing those parts... better replace it... replace or reflow cobba too.. cobba is faulty when signal is out after a few seconds.. gud luck!!! br, wamir |
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10-23-2002, 04:39
| #3 (permalink) |
| No Life Poster  Join Date: Mar 2000 Location: inside NOKIA phone Age: 58
Posts: 1,677
Member: 1060 Status: Offline Thanks Meter: 10 | hs_ remove PA, and put enough FLUX to Hager and CCONT , or reball it ! you have to make sure, CCONT have work supply for 2.8V to TXCO , and check 26Mhz from TXCO to Hager first ! then check Hager 13Mhz out to MAD ! then check 32.768 Khz sleep clock around CCONT ! Willy |
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10-23-2002, 22:24
| #4 (permalink) |
| Insane Poster Join Date: Oct 2002
Posts: 72
Member: 16859 Status: Offline Thanks Meter: 0 | I removed PA then I try to turn on phone but result is same Notting happen Before remowing PA will rehot Hagar and CCONT But I dont know how to check 13Mhz freqency Because I dont have Osiloscope or Spectrum analyzer I'm poor engineer Live in Bulgaria Do you know another methots to check this freqency??? |
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10-23-2002, 23:22
| #5 (permalink) |
| No Life Poster Join Date: Dec 2000 Location: Slovakia, Brezno
Posts: 980
Member: 2721 Status: Offline Thanks Meter: 23 | If phone have signal for few seconds..propably bad PA or antena switch. If after reflowing HAGAR and CCONT is phone death, rebal it. Propably, when you have it reflowed, you make some shortcircuit. |
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10-25-2002, 23:09
| #7 (permalink) |
| Insane Poster Join Date: Oct 2002
Posts: 72
Member: 16859 Status: Offline Thanks Meter: 0 | But I don't know how can I BALL BGA chips... Please send me any information... What kind of tools need for this job... I have SMS rework station and Sondering iron... Temperature control... |
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