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. Hello everyone !!!!
  Last week I received a few days ago PA3X and buy MUSIC STORE an EXB-256m. After several attempts to install and I could not do it ... Watch Internet videos, read the manual .. but the keyboard does not recognize the memory board ... someone tell me I'm doing wrong ???
thanks

Did you first make sure you have the latest PA3X OS?

Was the PA3X a new one or used?

Have you checked whether all battery status indicators are OK?

Can you get the store to send you an exchange RAM module?

i did change mine, it took me about half an hour to figure it out.
So in your case, I will recommend that you need to open and completely un-install or take the 256MB memory card out , and Re-insert it back...Make sure it sit firm and traight before inserting the memory card into the slot. And lock it tight with two lock spring on both side ended.and re-stard your keyboard.

Good luck !

Hungnguyen wrote:i did change mine, it took me about half an hour to figure it out.
So in your case, I will recommend that you need to open and completely un-install or take the 256MB memory card out , and Re-insert it back...Make sure it sit firm and traight before inserting the memory card into the slot. And lock it tight with two lock spring on both side ended.and re-stard your keyboard.

Good luck !

OP states he has already done this several times...

Robydur wrote:but the keyboard does not recognize the memory board ... someone tell me I'm doing wrong ???

Maybe you don't and memory card is defective !

Do the following :
- Plug back the old 128 Mb Ram
- Go to Sound/record/sample edit/ upper screen roll down meny / delete and choose all samples and multisamples.
- Choose info tab and confirm that remaing memory is 1398 seconds which means that your Pa3X has no problem !
- Turn off Pa3X , switch Ram boards (with new 256 Mb Ram) be sure that safety clips are properly closed and turn on Pa3X.
- Go to Sound/record/sample edit/info and there are two occasions :
1. Remaining memory is 2796 seconds and all are fine
2. Remaining memory is 0 and your new Ram module is defected and must be replaced.

Thanks to all
I did everything right ... but I do not understand what happens ??? After placing the memory 256 ...
the sampling information is:
Mono Time: 1398 s.
Bytes: 134217896
Larguest block: 134217896

.... I think it is not so .....

  I have installed the OS 1.63

any suggestions ???
thanks again

Do not bother with OS or anything else , it doesn't matter at all ...
If after installing the new Ram module and after : Sound/record/sample edit/ upper screen roll down meny /
delete / all samples and multisamples , info shows 1398 sec of remaining memory then by 99,9 % Ram
module they gave you is 128 Mb and not 256 ...

Demand a replacement !

Hope this helps

PS If you examine ram chips label on board of both Ram modules , you can easily find out if your
new ram module is indeed 256 MB (4 ICs)

Thanks Antony !!
but the plate is engraved ...
DTL-256 Mb
mistake or deception is Manufacturer
Samsung brand

Tomorrow I claim to MUSIC STORE .. I hope I can change because I am far .. in Argentina