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.