Search found 348 matches

by rubber_jonnie
Tue Jul 31, 2018 1:17 pm
Forum: STF REMAKE PROJECT
Topic: Ordering the Alpha board
Replies: 87
Views: 1488

Re: Ordering the Alpha board

exxos wrote:
Tue Jul 31, 2018 1:15 pm
Zero SMT on there.. Keeping it easy as possible for people to build.
Sweet :)

:bravo:
by rubber_jonnie
Tue Jul 31, 2018 1:14 pm
Forum: STF REMAKE PROJECT
Topic: Ordering the Alpha board
Replies: 87
Views: 1488

Re: Ordering the Alpha board

Hmm, so I guess I'm seeing SMD type PLCC sockets on the board? ??? Normal PLCC sockets (not funky ones either, just normal PLCC sockets). In the image you posted here: https://www.exxoshost.co.uk/forum/viewtopic.php?f=19&t=15 , the socket shapes make it look like they are surface mount sockets, not...
by rubber_jonnie
Tue Jul 31, 2018 12:53 pm
Forum: STF REMAKE PROJECT
Topic: Ordering the Alpha board
Replies: 87
Views: 1488

Re: Ordering the Alpha board

Hmm, so I guess I'm seeing SMD type PLCC sockets on the board?

If so then I'm going to have to get some sort of hot air soldering practise in, since I don't have an oven!!

:dizzy:
by rubber_jonnie
Tue Jul 31, 2018 12:32 pm
Forum: STF REMAKE PROJECT
Topic: Ordering the Alpha board
Replies: 87
Views: 1488

Re: Ordering the Alpha board

Atarian Computing wrote:
Tue Jul 31, 2018 12:24 pm
No worries, got several. And some NOS chips.
Likewise. I have one board in particular in mind, which will donate it's body for science :)
by rubber_jonnie
Tue Jul 31, 2018 12:22 pm
Forum: STF REMAKE PROJECT
Topic: Ordering the Alpha board
Replies: 87
Views: 1488

Re: Ordering the Alpha board

Atarian Computing wrote:
Tue Jul 31, 2018 12:11 pm
Do we source components from donors? As in the special chips?
Yeah, you're going to need a donor board of some sort.
by rubber_jonnie
Tue Jul 31, 2018 11:55 am
Forum: HARDWARE DISCUSSIONS
Topic: Help with identifying mobo
Replies: 6
Views: 219

Re: Help with identifying mobo

It seems to be one of these: https://www.exxoshost.co.uk/forum/viewtopic.php?t=749 You can see C103175 printed on the board in this picture: https://imgur.com/Xrc4V1j What you can't tell is the revision, but since you have it part disassembled, removing the top RF shield is quite trivial to do, it's...
by rubber_jonnie
Tue Jul 31, 2018 11:48 am
Forum: HARDWARE DISCUSSIONS
Topic: Shielding - is it needed?
Replies: 2
Views: 71

Re: Shielding - is it needed?

Personally most of mine run without the top shielding, but you do need the bottom shielding for the best fit of the mainboard, so I always keep that.
by rubber_jonnie
Tue Jul 31, 2018 10:48 am
Forum: HARDWARE DISCUSSIONS
Topic: Dual Tos Fast switcher...
Replies: 21
Views: 511

Re: Dual Tos Fast switcher...

Oh arse... I've just realised it worked with just the dual tos in it... I've buggered the booster... Meh... I wouldn't decide it's the booster just yet. Make sure the TOS switcher is correctly seated if in sockets, you may even want to eliminate it by putting the original 2 ROM set back in whilst y...
by rubber_jonnie
Tue Jul 31, 2018 8:56 am
Forum: HARDWARE DISCUSSIONS
Topic: Dual Tos Fast switcher...
Replies: 21
Views: 511

Re: Dual Tos Fast switcher...

Jumper links??? Here is a photo of mine: Jumpers.jpg What you'll likely have rather than jumpers, are zero ohm links, which look like this: zero.jpeg However you can see clearly from the picture the position that the jumpers are in, with pins 2-3 connected. If you are desoldering the zero ohm links...
by rubber_jonnie
Mon Jul 30, 2018 11:20 pm
Forum: STF REMAKE PROJECT
Topic: NEW LAYOUT
Replies: 21
Views: 1032

Re: NEW LAYOUT

I have several 'Bad DMAs' that should be ideal for this project!

:dizzy: