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Re: Need help reverse engineering Timex Store Demonstrator ROM file
Posted: Tue Nov 01, 2022 12:33 pm
by XavSnap
Re: Need help reverse engineering Timex Store Demonstrator ROM file
Posted: Tue Nov 01, 2022 3:53 pm
by Paul
Sockets are useless for the anything other than the ROM and only possible causes of problems.
the recom and the capacitor can be inserted on the Backside of the PCB.
Re: Need help reverse engineering Timex Store Demonstrator ROM file
Posted: Tue Nov 01, 2022 8:56 pm
by dessony
XavSnap and the rest of you,
I hope that none of the components on the board hit the computer's case. How about the card edge connector's row spacing specification fixture?
Thank you very much in advance.
Regards,
DesSony
Re: Need help reverse engineering Timex Store Demonstrator ROM file
Posted: Tue Nov 01, 2022 11:03 pm
by XavSnap
Hi,
The new connector 5.08 is ready !
Re: Need help reverse engineering Timex Store Demonstrator ROM file
Posted: Wed Nov 02, 2022 4:27 am
by dessony
All of you,
I placed a PCB fab order today. (11/1/'22)
Cheers,
DesSony
Re: Need help reverse engineering Timex Store Demonstrator ROM file
Posted: Wed Nov 02, 2022 11:02 pm
by XavSnap
Thanks DesSony.
>> 11/23/22 !
Re: Need help reverse engineering Timex Store Demonstrator ROM file
Posted: Wed Nov 09, 2022 12:57 am
by dessony
XavSnap and the rest of you,
I received a T S Demo board yesterday (11/7/'22) from a carrier.
- T S Demo V. 2.2
Direct connection. All components miss the computer's case. Go!
Edge card connector hole size. Go!
Edge card connector row spacing. Go!
I can use a triangle piece as a key tab for the edge card connector. I fixed the particular piece to fit within the connector. Go!
I read voltages off the board test points without chips in their places. 5+V and GND Go!
I need some time to test the board. I only saw a white screen at this time.
Best regards,
DeSony
Re: Need help reverse engineering Timex Store Demonstrator ROM file
Posted: Wed Nov 09, 2022 2:29 am
by XavSnap
Hi DesSony,
The /ROMCS seem to be active at the ROM startup.
Check the 78LS04 component/socket.