Hopefully this has given the rest of you some confidence to take the next steps,
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See here for more information viewtopic.php?f=20&t=7296
See here for more information viewtopic.php?f=20&t=7296
PCB Build - Progress - Post your Pics here :-)
Re: PCB Build - Progress - Post your Pics here :-)
Cool, will wire up the 12v and put the ram in tomorrow.
Hopefully this has given the rest of you some confidence to take the next steps,
Hopefully this has given the rest of you some confidence to take the next steps,
If it ain't broke, test it to Destruction.
Re: PCB Build - Progress - Post your Pics here :-)
? Wire 12V to what ? Nothing actually uses 12V on the board other than the 12V pull up on the RGB port. (not sure if that's needed for scart switching)
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
Re: PCB Build - Progress - Post your Pics here :-)
The ubeswitch uses the 12V pin on the monitor out.exxos wrote: Fri Sep 14, 2018 10:36 pm ? Wire 12V to what ? Nothing actually uses 12V on the board other than the 12V pull up on the RGB port. (not sure if that's needed for scart switching)
-
frank.lukas
- Posts: 742
- Joined: Fri Jan 19, 2018 11:52 am
Re: PCB Build - Progress - Post your Pics here :-)
The +12V over a 1.2K Resistor are using for scart autoswitching.exxos wrote: Fri Sep 14, 2018 10:36 pm ? Wire 12V to what ? Nothing actually uses 12V on the board other than the 12V pull up on the RGB port. (not sure if that's needed for scart switching)
Re: PCB Build - Progress - Post your Pics here :-)
I wonder if 5v would work for scary...
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
-
frank.lukas
- Posts: 742
- Joined: Fri Jan 19, 2018 11:52 am
Re: PCB Build - Progress - Post your Pics here :-)
When you have a TV with Scart try it. Connect a Atari ST/STE to your TV and with the +12V the TV switch automatic when you power the ST/STE on to the right Scart Input.
Re: PCB Build - Progress - Post your Pics here :-)
Looking at SCART Wikipedia page if I am not mistaken Pin 8 the switch pin can have different voltages which also selects different aspect ratios.
https://en.wikipedia.org/wiki/SCART
https://en.wikipedia.org/wiki/SCART
Re: PCB Build - Progress - Post your Pics here :-)
I don't have access to a start tv at the moment, I'm using an NEC multisync VGA but do have a scart to HDMI adaptor, which I can use my HDMI to DVI lead I guess?
Will probably put the ram board in and then see what the current load it, if thats still OK, will likely plug my recapped PSU in and see what happens, ie 5v and 12v.
I'll report back with that later on, will get the scope out just in case.
Will probably put the ram board in and then see what the current load it, if thats still OK, will likely plug my recapped PSU in and see what happens, ie 5v and 12v.
I'll report back with that later on, will get the scope out just in case.
If it ain't broke, test it to Destruction.
Re: PCB Build - Progress - Post your Pics here :-)
Today so far.
Plugged my 4mb mmu type upgrade made by Exxos into the board with my bench power supply supplying just 5v and gnd.
Current draw is presently a stable 930ma and the only chips to even get slightly warm are the two ram chips on the mmu adaptor, maybe around 40C.
Still no display but I think that's down to the ubeswitch?
Will try the recapped power supply next.
Plugged my 4mb mmu type upgrade made by Exxos into the board with my bench power supply supplying just 5v and gnd.
Current draw is presently a stable 930ma and the only chips to even get slightly warm are the two ram chips on the mmu adaptor, maybe around 40C.
Still no display but I think that's down to the ubeswitch?
Will try the recapped power supply next.
If it ain't broke, test it to Destruction.
Re: PCB Build - Progress - Post your Pics here :-)
So, with the psu in place, no output to either my scart to hdmi or to the ubeswitch output. Will grab the scope and see what I can find.
If it ain't broke, test it to Destruction.