Hi,

 

I just bought an old Toyota AD820 (not A model).

After switching on the power, there is nothing on the machine LCD display -except '_' on upper 

 

line left and red LED light gets on.

 

None of the buttons respond.

 

Nothing is written in user manual of (35 pages) about this trouble, nor any way to somehow 'reset' the 

 

software.

 

i'm new, some questions I owuld like to ask is:

 

The computer needs to be connected through serial port for enabling 820 to start ?

Also Any thing else i must check ?

 

Thanks.

Did you try to connectthe computer and anything on the display?

 

I think there is no correct communication between display and motherboard, its a technical problem.

Hi

 

Thanks for the answer ...

 

Yes, i tried with the computer connected, but same result.

I agree with what you said, it must not have any direct relation.

 

I think the electonic part isnt working ...

please some me tests so that I perform before spending money by going to a tech ?

Is there any test some switch for any setup.

Unfortunately, I wont be able to help you regarding test procedures as my machine is new, and I doubt I will be able to find anything in the machine manual for you.

But still you tried to help me out, if you have any great idea, please let me know. 

You are always  welcome, your machine problem gets sorted out soon.

I suggest just call a technician at your place and sort this matter out, it will cost you a bit but its better paying some bucks than taking loads of stress and tension.

I already called up a technician and he has sorted the problem thanks everyone. Well I don't mind spending money if the issue gets solved correctly without much botheration.

I have the same problem with my machine, it was fine pre Christmas but wouldn't work when I started back after the holiday.

I cant earn any money at the moment so any advice about its cause or possible fixes would be most welcome