Cehbra

iTrader: (1)

I recently hacked into the digital dash EEPROM/NVRAM - if anyone is interested, see https://www.thirdgen.org/forums/elec...o-86-88-a.html

Now I have a small handful of new old stock NCR 52801 chips I don't need anymore. I'm willing to sell each for US$ 50 plus $ 10 for shipping. Of course I will program the chip with the mileage you need.

So if your digital dash odometer shows flashing 9's or a false mileage reading because you swapped from analog to digital this might be for you.

prossi

will this fix the flashing 9's at start up and then screen going blank with no numbers?

Cehbra

iTrader: (1)

Hard to say - to my knowledge flashing 9's are a sign of a bad chip (either wrong parity or hardware failure). But I never noticed the screen going blank after a while. I'll check tonight with a bad chip and see, if the screen goes off after a while.
How much time does it take for the screen to go blank after the 9's appear?

Cehbra

iTrader: (1)

Tested it with a bad chip. Mine seems not to go blank, still flashing after half an hour... Then again, I don't have a complete digital dash, just that odometer board. But as there are no other I/O lines apart from VSS signal I assume your board has a second fault.

prossi

the numbers disappear after the 9's flash about 3 times on start up. power on only ill either have constant flashing 9's or nothing. Ill have to check it out maybe there is a dirty connection where the odometer board plugs in.

Stoic Heroics

I could use a chip when I finish wiring in my digital dash.