Question about Samsung SGH-d807 Cellular Phone

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Signal Amplifier doesn't work

The signal amplifier doesn't work properly, how would I go about fixing it? And if I have to replace it, how much would it cost me?

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Re: Signal Amplifier doesn't work

That is very hard to say you would have to take the phone to a mobile service center or a mobile tech close to you.

Posted on Jan 29, 2008

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I have absolutly no signal on my 6210i.....please help

try this step.
1. reset to factory default but first backup all your contact and important data, all application also ill removed.
2.if still not working it because your Power Amplifier Chip need to be replaced.

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The fault can be the mic input amplifier which is not working to increment the signal to the desired level to be fed into the circuit.
So you will need to trace the signal path if you are confirmed with the mic connection and type.
It is fault in the mother board.

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you need to replace the power amplifier(pa) mounted on the top part of the phones board.

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My phone not getting signal properly when a signal low area.some time even is signal available,cant take call to phone.

thats a hardware problem, your RF amplifier should be weak. it is responsible for amplifying and mentaining the signal on your phone. you should therefore take it to a service point so that they check it anf if possible replace it.

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reheat or change antenna switch and power amplifier one at a time..if it doesn't work reheat hagar, ccont, cobba...

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You must change PA(Power Amplifier) IC on your phone.5-6second signal than gone is a sign of PA IC not work any more.You know that PA is an IC where phone use to transmit.I hope it help.

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Your phone is shorted'
fastly heat' and battery broke' automatically
P.A. Problem, change the Power Amplifier to fix your phone,
skilled technician can do...

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1 Answer

Network problem for 3100 nokia

if handset is not able to recieve the signal means (no signal bar on the screen means)go to phone settings and search manaully even you didnt get any operators VCTCXO is the problem by replacing it you can solve this .
if you get the operators by manuall search and you couldnt access , problem with UEM or by PA(power amplifier)

Nov 02, 2007 | Nokia 3100

1 Answer

Phone suddenly turned off...

You need an expert one to open your phone, during your conversation the signal components is in heavy duty, one of this is the signal power amplifier ( P.A ) the source of power is from power IC ( UEM ) grounded P.A sometimes kills the phone and need to replace it, if not work, the UEM is already busted replaced it, before all of this try to reformat first.

May 14, 2007 | Nokia 6600

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