Search found 5142 matches

by exxos
Sun Mar 24, 2019 6:14 pm
Forum: HARDWARE ISSUES
Topic: STe Will Not Boot From Cold.
Replies: 12
Views: 72

Re: STe Will Not Boot From Cold.

C100 is 10uf
C102 is 22uf

You need to increase those values.. Try 47uf across both.

Its probably c102 which does the power up reset. The 10uf is the reset switch cap so changing that probably won't help.
by exxos
Sun Mar 24, 2019 4:40 pm
Forum: HARDWARE ISSUES
Topic: STe Will Not Boot From Cold.
Replies: 12
Views: 72

Re: STe Will Not Boot From Cold.

:thanksblue:

Yeah Tesla coil stuff I want to go back to one day. But not easy in built up areas and no where to work on the stuff :(
by exxos
Sun Mar 24, 2019 4:00 pm
Forum: HARDWARE ISSUES
Topic: STe Will Not Boot From Cold.
Replies: 12
Views: 72

Re: STe Will Not Boot From Cold.

Mouse is normally bad ports or bad cable on the mouse, sometimes can be broken pins on the connector itself.

https://www.exxoshost.co.uk/atari/last/ ... /index.htm
by exxos
Sun Mar 24, 2019 3:47 pm
Forum: HARDWARE ISSUES
Topic: STe Will Not Boot From Cold.
Replies: 12
Views: 72

Re: STe Will Not Boot From Cold.

:welcomewave:

The STE suffers from bad caps in the reset circuit . I can't check right now, but if you look at the schematics there is a 556 timer with 2 large caps.. Add another 10uf or replace them and the issue should go away.
by exxos
Sun Mar 24, 2019 3:43 pm
Forum: MEMBER BLOGS
Topic: Boosting STFM: 16MHz bus, 64MHz Shifter
Replies: 135
Views: 19028

Re: Boosting STFM: 16MHz bus, 64MHz Shifter

If I ever get chance, I want to do this mod on the Alpha... Also with a future board, there will be a expansion board for the GLUE & MMU where I hope to integrate the GAL onto that board.
by exxos
Sun Mar 24, 2019 1:06 pm
Forum: MONGREL EDITION (version 2)
Topic: exxos IDE interface (untested)
Replies: 99
Views: 5198

Re: exxos IDE interface (untested)

:bravo: This will now miss my MMU 4MB kit should it be fitted along with this IDE board :)

Will try and remember to order the ATF chips from mouser tomorrow!
by exxos
Sun Mar 24, 2019 12:37 am
Forum: CHAT FORUM
Topic: Change of username. Forgottenmyname = PhilC
Replies: 6
Views: 67

Re: Change of username. Forgottenmyname = PhilC

:welcomewave: rememberedyourname
by exxos
Sat Mar 23, 2019 8:26 pm
Forum: MONGREL EDITION (version 2)
Topic: 3V <> 5 V thoughts
Replies: 0
Views: 23

3V <> 5 V thoughts

I was half thinking if the CPU bus pullups were on 3.3V rail then the CPU would actually still run on 5V, but all the IO's would be on 3.3V. So it could interface directly to 3.3V stuff without bus shifters. Though it wouldn't actually work as things like the 244 buffers etc would be driving the bus...
by exxos
Sat Mar 23, 2019 12:59 pm
Forum: HARDWARE DISCUSSIONS
Topic: Project: HDMI/DVI out for STFM
Replies: 486
Views: 34202

Re: Project: HDMI/DVI out for STFM

troed wrote:
Sat Mar 23, 2019 10:24 am
*) also, kid #3 arriving in a month ;)
I've noticed a trend lately, I have put together a formula. more kids = less atari time. :lol: Don't work to hard in any case :)
by exxos
Sat Mar 23, 2019 12:58 pm
Forum: PSU (power supplies)
Topic: ASP34-2 - Looking a bit burnt
Replies: 17
Views: 723

Re: ASP34-2 - Looking a bit burnt

Icky wrote:
Sat Mar 23, 2019 11:41 am
:) - Since I have had the label printer its become a bit of an addiction. I start seeing places all over the place where I can put a label.
:lolbig: Dawn likes the printer, though we all to lazy to change the spool to print other labels out :lol: