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Generic Power Supply
Posted: September 7th, 2018, 11:35 pm
by Squaresoft74
Hello,
Has anyone ever used one of these PSU clone ?
.
They were made by "Madcow" and PCB is dated "Jun:03.1999".
They can fit into any FAT PS1 since they have both 7 and 5 pins connectors available, which is nice.
But are they at least safe to use at all ?
Re: Generic Power Supply
Posted: September 8th, 2018, 12:35 am
by Administrator
Nope, never tried it, but it looks well designed and it looks like it should be safe.
Re: Generic Power Supply
Posted: September 8th, 2018, 1:05 am
by Squaresoft74
Looks good then.
Only flaw i can see right now is the 220-110v connector that only holds with the 2 solder points.
I'll replace it with an original connector since it also holds with 2 screws.
I'll test it for a while and see if that doesn't warm up too much.
Re: Generic Power Supply
Posted: September 8th, 2018, 8:36 pm
by rama3
Hm, I've got to disagree on the looks of this supply. To me, it looks like a cost reduced clone of the original.
I can't say much about the primary side, but look at the secondary!
Where is the reset controller IC and all the filtering passives?
The capacitors look small, and all I can read on one of them is "vent" :p
These probably work, but they're not quality.
Re: Generic Power Supply
Posted: September 8th, 2018, 9:12 pm
by Squaresoft74
Re: Generic Power Supply
Posted: September 9th, 2018, 3:43 am
by rama3
Since this involves mains power, I really don't want to recommend it.
Originals are okay within their specifications.
You probably want to power an early machine, and those use a bit more juice.
It will certainly work, but maybe a component will be stressed more than it should be (unlikely, but still).
Re: Generic Power Supply
Posted: September 9th, 2018, 3:53 am
by Squaresoft74
So in the end, what would be the best solution to replace a Scph-100X's power supply with one that doesn't warm up as much as their original one ?
Re: Generic Power Supply
Posted: September 9th, 2018, 4:57 pm
by Administrator
rama3 wrote: ↑September 8th, 2018, 8:36 pm
Hm, I've got to disagree on the looks of this supply. To me, it looks like a cost reduced clone of the original.
I can't say much about the primary side, but look at the secondary!
Where is the reset controller IC and all the filtering passives?
The capacitors look small, and all I can read on one of them is "vent" :p
These probably work, but they're not quality.
Compared to wall adaptors you get these days from China, I thought it was pretty decent. Still, it's not going to be nearly as reliable as the genuine Sony ones.
Squaresoft74 wrote: ↑September 9th, 2018, 3:53 am
So in the end, what would be the best solution to replace a Scph-100X's power supply with one that doesn't warm up as much as their original one ?
If you're skilled enough, you could tweak the existing Sony design or build your own from scratch.
Re: Generic Power Supply
Posted: September 9th, 2018, 11:25 pm
by rama3
Also, the 100x design was produced for quite a while. Later models use power supplies from Nichicon, with similar performance to their 700x / 900x versions. So if you can find one of those, this is the best replacement.
I suppose your second best option is indeed a conversion of a regular 700x / 900x to 7 pin.
Keep the mains power in mind!
Re: Generic Power Supply
Posted: September 18th, 2018, 7:55 am
by Squaresoft74
Shadow wrote: ↑September 9th, 2018, 4:57 pm
If you're skilled enough, you could tweak the existing Sony design or build your own from scratch.
Not an option for me i'm affraid.
rama3 wrote: ↑September 9th, 2018, 11:25 pm
Also, the 100x design was produced for quite a while. Later models use power supplies from Nichicon, with similar performance to their 700x / 900x versions. So if you can find one of those, this is the best replacement.
You mean like the second one on the bottom:
rama3 wrote: ↑September 9th, 2018, 11:25 pmI suppose your second best option is indeed a conversion of a regular 700x / 900x to 7 pin.
Keep the mains power in mind!
Thanks to both of you for your advices.
Re: Generic Power Supply
Posted: September 19th, 2018, 2:02 am
by rama3
Yep, that's one.
You can see how they're better by the heat marks around the input switcher (ie: none on the Nichicon ;p).
.