getting low readings on 12V Falcon supply
getting low readings on 12V Falcon supply
the -12V rail is down to -10.59 v and the 12V is 11.59, +-5V is good, fan spins up but the 12V is too low, any ideas? This is a Skynet supply with Chemicons so I haven't replaced any caps on it, maybe I need to? Would be good to have a schematic but that doesn't appear to be available anywhere, so any suggestions would be good, thanks!
- frank.lukas
- Posts: 661
- Joined: Fri Jan 19, 2018 11:52 am
Re: getting low readings on 12V Falcon supply
This is normal and good.
Re: getting low readings on 12V Falcon supply
Yes as Frank said this is within tolerance and fine
- frank.lukas
- Posts: 661
- Joined: Fri Jan 19, 2018 11:52 am
Re: getting low readings on 12V Falcon supply
The + 12v from the powersupply has only a few milliamps and is not loadable ...
Re: getting low readings on 12V Falcon supply
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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: getting low readings on 12V Falcon supply
OK, but is that acceptable for the -12 rail, a -10.69 sounds awfully out of tolerance, thanks!
Re: getting low readings on 12V Falcon supply
There is probably no regulation on the 12V, only the 5V. 12V is just pot luck on winding ratios of the transformer itself. So "normal" could be 10V-14V etc.
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.
Re: getting low readings on 12V Falcon supply
Thanks exxos, I plan on using this supply with a Mega STe as they have the same connector and looks like the same voltage requirement, does that sound OK?
Re: getting low readings on 12V Falcon supply
Falcon PSU's are nothing like MEGA STE PSU's... They are not compatible.
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.
Re: getting low readings on 12V Falcon supply
Thanks for the heads up, just looking at them I thought they were, good to know!