3310 no network

[tolowo]

Hi guys,how was the day...?
I have a 3310 no network fault.I changed PA and when the problem wasn't solved I then changed the ant-switch,yet no joy,I changed the cobba which now make the network to appear for about 1 minute and then disappear.That is what the phone is doing continously now,and for me not to cause more damage,I need a professional advice on what next to do.Thanks.

[electrophoretic]

this is mostly caused by the PA but you might find that your VCO is shot... try changing your VCO first... strange...

G