Austarion

Posted: **Tue May 08, 2007 8:04 pm**

I took a VELNAS unit apart to fix the flexi-cable so I though I'd take a photo while I was at it. I was surprised at how simple it looks.
Basically it's just a NEC D650C IC, some logic chips and various other components.
I've not been able to find a datasheet on the NEC D650C so don't know what it does. The vertical board just has the LEDs and the button pads.

I don't know if there is any logic in the display unit, but I suspect not.

Cheers,

Mike.

Posted: **Tue May 08, 2007 9:08 pm**

The NEC D650C is a 128 microprocessor.

Posted: **Wed May 09, 2007 2:51 am**

Starion_Turbo wrote:The NEC D605C is a 128 microprocessor.

:?

The D650C is a 4-bit microcontroller.

Posted: **Wed May 09, 2007 3:39 am**

Starion_Turbo wrote:The NEC D605C is a 128 microprocessor.

NOPE BOTH wrong !
The NEC D605C is just a fancy name for the Flux Capacitor. :D
Sorry guys... could NOT contain myself.

Oscar

Posted: **Wed May 09, 2007 9:49 pm**

Hmm, must be a few different D650C chips around, possible suffix difference.

Posted: **Thu May 10, 2007 9:06 am**

Starion_Turbo wrote:Hmm, must be a few different D650C chips around, possible suffix difference.

Yeah, I've just found some more info about them. Each D650C IC is preprogrammed to suit a certain application and is given a suffix to indicate what it's for. Not much chance in repairing a VELNAS if this IC dies then.

Austarion

Inside VELNAS

Inside VELNAS