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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Mon Mar 18, 2013 3:21 am Post subject: |
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Almost done. Still have to pull AC for the PS that will feed the Moome MUX HD, its the PS partially under the right XS PS.
Then I have to cut the top panel so it slides in around the tea sinks. The right PS will have to go in last after the top is slid on.
I also will need to find better DC plugs for the larger DC Jacks, the ones I got are a bit loose.For the smaller Jacks for the TV-Ones
I got lockable Plugs. they are screwed onto the threaded part of the jack. I should have got them all the same But i didn't know for sure what I was getting and wanted to try a few out. The larger ones tho are beefier for the higher amps the Lumagen's draw.
And I might add two Push button switches on the front panel for the Radiance XS's since they run hot , even in standby( just warm)
Nashou
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Mon Mar 18, 2013 10:51 pm Post subject: |
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Damn it I just realized something. The output Jacks are not insulated. So they all are connected to each other through the chassis.
Not sure what to do now. I might be able to find rubber or plastic grommets and re drill the holes a bit larger to fit the grommets and then reinstall the jacks back in.
Or would it be ok as is? I don't think so. Damn it!!!
I hate over sight!!! The voltages all measure ok. Also the Sigma 11 states not to connect Jacks to chasisis if the unit being powered
has a virtual ground. Not sure if any of the things I want to power have a virtual ground or not. I looked it up on WIKI but really not sure what to do.
Any insights guys?
Nashou
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Don't blame your underwear for your crooked ass~ unknown Greek philosopher
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flipdog
Joined: 22 Dec 2011
Posts: 156
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| Posted: Mon Mar 18, 2013 10:55 pm Post subject: |
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| Nashou66 wrote: |
Any insights guys?
Nashou |
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Tue Mar 19, 2013 8:41 am Post subject: |
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| Nashou66 wrote: | Damn it I just realized something. The output Jacks are not insulated. So they all are connected to each other through the chassis.
Not sure what to do now. I might be able to find rubber or plastic grommets and re drill the holes a bit larger to fit the grommets and then reinstall the jacks back in.
Or would it be ok as is? I don't think so. Damn it!!! |
Hello Nash,
I would replace the output jacks.
First reason: The isolation requirement. If the outputs are all connected to the same potential (chassis ground) and the inputs and/or outputs of the powered devices carry ground potential too, You easily could run into a ground loop problem.
Second reason: The currents running across them. You've used quite small jacks and most of those are rated for 2-3A only. You wouldn't like to see what happens if over time they produce contact resistance and start burning up.
I therefore would recommend using XLR connectors (see pictures). They are available with contacts supporting 7.5, 10 or even 16A. They are secured against accidentially being pulled out, the contacts are isolated against the chassis and they are easy to solder the wires on.
Mouser part numbers are 568-NC3FP-1 for the sockets and 568-NC3FXX for the plugs (or equivalents of those).
I know, they are designed for stage/studio audio applications and You should put some warning labels near the sockets, but this is what I would be using. Especially if I already had put so much work into this project. You know: The marathon runner shouldn't try to run the last 100 feet on one leg only...
Regards,
barclay66
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stridsvognen
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| Posted: Tue Mar 19, 2013 8:57 am Post subject: |
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+1
I love using Neutrik XLR plugs for PS purpose, and if you have different voltage outputs, you can order with different amount of pins, so you cant connect the unit to a wrong supply voltage. you can get them with 3-4-6 pin.
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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Nashou66
Joined: 12 Jan 2007
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Location: West Seneca NY
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stridsvognen
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Nashou66
Joined: 12 Jan 2007
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Location: West Seneca NY
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Tue Mar 19, 2013 4:55 pm Post subject: |
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Radio Shack has the same jacks. Those things are huge!!!!
Id have to order another panel and start over to use them. So for now I'll stay with what I got.
I may build another one in the future as I still have about 3 more wall warts i'd like to eliminate
but they are not for critical equipment so I could go with cheaper transformers and parts for those.
Athanasios
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Don't blame your underwear for your crooked ass~ unknown Greek philosopher
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Tue Mar 26, 2013 3:25 am Post subject: |
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Well its all up and running. Workes great except for the Moome MUX. Sometimes it works and sometimes it doesn't. it would
not lock to the HDMI signal. Occasionally unplugging and plugging back in it work. So for now I am not using that output jack. It does work as it powers the radiance. both use 5 VDC.
I Alos tried it on an EXT Moome V1.3 I just got and it makes all the lights light up and or one just flickers.
No AC is on the output and the radiance ran stable from that Jack.
Any Ideas?
Nashou
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
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HK-Steve
Joined: 15 Jul 2006
Posts: 849
Location: Switzerland
TV/Projector: Marquee 9500, Epson 8100
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| Posted: Tue Mar 26, 2013 6:56 am Post subject: |
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What is the output voltage, from memory, you said it was under 5v.
Maybe it is boarderline for the MUX??
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Tue Mar 26, 2013 1:13 pm Post subject: |
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| HK-Steve wrote: | What is the output voltage, from memory, you said it was under 5v.
Maybe it is boarderline for the MUX?? |
On this supply board I used a higher tolerance 5.1 diode, 2% vs 5% so my voltage came in at 5.05 VDC.
Not sure why its acting up. I don't think Current would be an issue as this can go quite high.
Athanasios
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Don't blame your underwear for your crooked ass~ unknown Greek philosopher
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Boilermaker
Joined: 21 May 2006
Posts: 527
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| Posted: Tue Mar 26, 2013 7:15 pm Post subject: |
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Nash, I use 9 volt wall warts on my Mux's. There is nothing wrong with your supply, just need to up the voltage a tad bit. I never took my Mux apart, but I would guess that it uses a 5 volt regulator, so it needs enough to overcome its necessary insertion loss. It ain't broke, so don't fix it.
Bob
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Boilermaker
Joined: 21 May 2006
Posts: 527
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| Posted: Tue Mar 26, 2013 7:22 pm Post subject: |
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Nash, I also wouldn't worry about the current ratings as they are most likely "make-break" ratings and not steady state capability. Big difference in values!
Bob
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Tue Mar 26, 2013 8:24 pm Post subject: |
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| Boilermaker wrote: | Nash, I use 9 volt wall warts on my Mux's.
There is nothing wrong with your supply, just need to up the voltage a tad bit.
I never took my Mux apart, but I would guess that it uses a 5 volt regulator, so
it needs enough to overcome its necessary insertion loss. It ain't broke, so don't fix it.
Bob |
Well the Wall Warts that came with it were 5 volters. I never actually measured them.
I have been using a 5 volt one with a 2 amp rating from a Gefen DVI splitter.
Moome emailed me back and said they use 1-1.5 amps depending on the set up situation.
What is strange is that it will power the Radiance XS but not the MUX.
He also said the MUX really doesn't need a Linear PS since its all digital. Might be some truth to it.
I just want to get rid of my wall warts. 
Hmm 9 volts huh? maybe I'll get a 9 volt diode from radio shack and give it a try.
Also I just got a Moome EXT HD V1.3 and tried that with the Sigma and it too acted funny.
All LED's flashing or just one
blinking . So that is why i wondered if it was something Moome specific.
I tried it on the Gefen DVD splitter and that also worked fine as did a Cordless phone base
that uses the same plug.
So I know it is not the PS.
nashou
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Wed Mar 27, 2013 10:15 am Post subject: |
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| Nashou66 wrote: | | Hmm 9 volts huh? maybe I'll get a 9 volt diode from radio shack and give it a try. |
Hi,
I wouldn't do that. If there's no voltage regulator inside, You might break the unit. Or, if it has a voltage regulator inside, its power dissipation might rise to a dangerous level due to the increased voltage drop.
Although I don't know which MUX version You're using, it might be interesting to know, that the current MUX-FHD uses 6 volts. It normally should be labelled at the power input.
In general, I've had the best results when I went slightly over the rated voltage. For 5 volts this could be between 5.2 and 5.4 volts.
Reason: When there's a significant current draw, the higher voltage will compensate for the voltage drop across the series resistance of cables, connectors, input filters etc.
At 5 volts and 1A current draw a series resistance of only 0.1 Ohm will result in a voltage drop of 0.1 volts and digital circuits rated at 5 volts might start acting up at 4.8 volts already. So much for a safe operation margin...
Regards,
barclay66
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Tue Aug 27, 2013 9:03 pm Post subject: |
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Just an update, I have not been in my theater for a month or so since i began the tear down of the Marquees for a 9 inch conversion.
Well i must have left the power supply on that whole time!!!! The Tv-ones and Radiance's were still on working. SO i know that the design of the Sigma is very robust. I turned on my one PJ and let it run for an hour and the PS was still working well.
Safe to say it is reliable and the heat I thought might be an issue is not as of now.
Athanasios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
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