Help need with replacing power supply

[Walt Langhans]

Hey guys!

So my power supply bit the dust and I just got the new one in, and I wanted to double check how I 'think' the new unit should be wired, against someone who hopefully "knows" how is supposed to go. I know just about enough to get me into trouble so I'd like to avoid killing the new power unit with my own incompetence

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Above is the old power supply still wired in. On the left it say FG AC AC. On the right it says 5v TH TL WP G IN

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Above is the new power supply.

1/ Since everything on the left is the same I assume I can just swap the wires in the order that they are?

2/ I assume that the H L P on the new supply are the same as TH TL WP respectively?

3/ And then it's just a matter of moving the old wires over to the corresponding spot of the new power supply?

Thanks!

[Robert Walters]

Did you get a manual for the new PS?

Where did you purchase it from (provide link if possible)?

[Walt Langhans]

No manual, I got it from lightobjects

[Robert Walters]

I could not find your EXACT power supply on their website (which is why I asked for a link).

This is the closest I found for a "manual", there is also a PDF that you can downoad near the bottom of the page that gives some pinouts at least. Not sure if they are for *YOUR* ps or not, you've been warned =)


http://www.lightobject.info/viewtopic.php?f=16&t=18


Heh, it's funny your new PS has what looks like a date code of "201406052"...
2014-JUN-05 #2 Maybe? lol

Did you pick it up in person or had it overnighted to you?
Cause that's only 2 days ago (today being 2014-JUN-07)

[Scott Shepherd]

Robert, I think they list the day/month opposite of the USA. So that could easily be May 6,2014.

[Allen Rawley]

Hi Robert,

Your logic is correct. You can wire the controls per your listing. We have wired many different power supplies for our customers and get this question regularly.

[Robert Walters]

Robert, I think they list the day/month opposite of the USA. So that could easily be May 6,2014.

You could be right, usually YYYY-MM-DD (HH:MM:SS) is the unambiguous format (TIMESTAMP14).
But eh, no biggy either way =)

[Robert Walters]

Your logic is correct. You can wire the controls per your listing.

I'm just surprised they didn't at least include a single sheet instruction page.

Once I saw the signal names, I thought I'd at least give the link.

[Walt Langhans]

Hi Robert,

Your logic is correct. You can wire the controls per your listing. We have wired many different power supplies for our customers and get this question regularly.

Thanks Allen

[Bruce Dorworth]

Walt, the way I see it the connections on the new power supply are not the same as your old one. Look at the key on the silver label. Notice the letters H L P G IN 5V, Instead of 5v being your first connection it is last on your new supply, the other connections H/TH, L/TL, P/WP, G and in are the same order. I am far from an expert, but that is the way I see it. The AC seems to be exactly like the old one.

Bruce

[Keith Colson]

If it was me I would label each wire as I removed it and then place each labeled wire back into the desired slot. As Bruce said the connections are clearly in a different order but the pins can be matched up.

The other thing I would do is fix all that contamination that is getting into the power supply. This is probably the cause of failure. Your board should not get dirty at all. How is all that contamination getting onto the power supply and circuit board?

Cheers
Keith

[Walt Langhans]

Well the new power supply is in.

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And it ran fine for about 10 minutes, then the fuse at the AC power plug blew. I don't happen to have the fuse (f5al250v) that I need on hand so I need to go and get another one, however I am a bit concerned that the new power supply blew the fuse. Anyone have any thoughts / ideas of what might be up? Granted I realize it could be the fuse and won't find out till I put in a new one, but my gut's telling me there might be another issue.

[Kev Williams]

Must concur with Bruce & Keith on the right-side connector. The difference between the 2 is the 5v spot is on the far left on the old supply, it's on the far right on the new supply. Otherwise identical. Left-to-right connections are identical in sequence, but you use the MIDDLE four spaces on the new supply vs the RIGHT four spaces on the old, leaving the far left and far right spaces open...

[Dave Sheldrake]

POT control or DSP Walt?

cheers

Dave

[Walt Langhans]

I replaced the fuse and hit the pulse button and the laser fired.

However, the amp meter on the hit 40, I'm usually in the 20 - 25 range. Anyone have a clue on what might be going on and how to fix it?