Epson HX-20 problem

From: Tony Duell <ard_at_p850ug1.demon.co.uk>
Date: Wed Jun 18 15:59:01 2003

> Does anybody know how to fix the classic protable Epson HX-20?
>
> This is my part of collections, I know it's work fine before. When I tried to
> switch on the machine last week, (it was after 15 hrs charged), the LCD didn't
> show up and there was no response on the contrast wheel. But I still tried to
> key in something, like "SOUND 10,10" and "LPRINT A", there was a beep sound and
> the text printed from the mini-printer. Then I plug in the AC adapter again
> and tried to switch 'on and off' many times on the startup switcher, the LCD
> worked again. At that time I thought the problem is solved.

Do you know that the battery is good? IIRC, on these amchines, most of
the logic chips run directly off the battery (which is a 4.8V NiCd unit),
but there's a little SMPSU circuit for the -ve rail for the RS232 port
and the LCD. Maybe the latter isn't starting up correctly due to battery
problems, or something.

-tony
Received on Wed Jun 18 2003 - 15:59:01 BST