Internal LCD 1221 Error

[Joep]

Hello,

I got an old pearl 2000 here witch gives back the error 1221 at the motherboard LCD. I already reseated all the chips, the motherboard is a Boris 1.

What could the problem be ?

[adamabcd]

Have you checked the (non rechargeable) Lithium battery on the motherboard? It should measure 3V6.

[Joep]

The battery is dead.

I ordered a new one and will replace it.

Also got a reply from AVO with the possible chips the could be the problem, if i found the problem ill post it here.