BOOTROM (U70) modèle 4, KO

[oliverzouliv]

Hello everyone.

My TRS80 model 4 no longer starts.
No matter what boot image I use with my Gotek, I always get the message "No system".
I have a FreHd mounted in it.
If I use the FreHd bootrom (AT28C16 ), it won't turn on.
I have removed the FreHd and the bootrom FreHd and if I use the bootrom Tandy, I get the message "No system".

I think I have a bootrom problem, am I wrong?

Question: Does anyone have the file to reprogram the AT28C16 FreHD EEPROM, I can't find it on the net?

Thanks
Olivier

 

[ngtwolf]

Question: Does anyone have the file to reprogram the AT28C16 FreHD EEPROM, I can't find it on the net?

The bin files are here: http://trs-80.com.au/trs80/downloads.htm

 

[oliverzouliv]

Thanks a lot ngtwolf