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volkan
10-12-2002, 05:34 AM
Does anyone know how to repair a T28WORLD displaying "No access" message all the time?

Mrhazeem
13-12-2002, 09:10 AM
try change PA ....

volkan
13-12-2002, 05:53 PM
Dear Mrhazeem,

Thank you for replying to my question. However, I am new to Ericsson repair. I just downloaded ATR5.3 software. You probably thought that I was familiar with repair process. Could you please tell me what "Try change PA..." ,means? Is this a command that you type in ATR program?

Regards.

Mrhazeem
13-12-2002, 08:27 PM
First ...this is a hardware problem...

secound ... PA means power amplifier which is the black ic in the

top of the phone and there is RM 009 written on it

third ... u need hot ait generator to solder and resolder the PA

Good Luck

volkan
13-12-2002, 10:30 PM
Dear Mrhazeem,

Your help is greatly appreciated. I will replace the PA. I have access to hot air generator, however they are telling me that it can only be done if the pins are not too close to each other, because the process may damage the board. However, can you tell me how to open a T28?

Thank you Mrhazeem.

Mrhazeem
14-12-2002, 11:40 AM
Search over the internet for open the T28 ... you can find

it ....,there is many web sites explaining how to open the T28...it

is easy...

Mrhazeem
15-12-2002, 05:30 AM
ENGLISH pls .......!!!

odissey
01-01-2003, 02:17 PM
You must replace RF processor. See attached file.