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Topic: Dead DTS XD-10 Power Supply

Jim Cassedy
Phenomenal Film Handler

Posts: 1661
From: San Francisco, CA
Registered: Dec 2006

posted 04-03-2011 08:06 PM

I've got an XD-10 with a totally dead power supply.
Should I just get a replacemment at a local computer store,
or stick with an "official "DTS" replacement part?

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999

posted 04-03-2011 10:02 PM

I don't have the particulars on the unit but I suspect that it can be had at regular computer suppliers.

Before completely throwing in the towel...look on the main board with the rear switch on and plugged in...is there a single red LED lit?

I've had the front switch give a false bad power supply...merely removing and reinserting the quick disconnect connectors restored full operation.

-Steve

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Jim Cassedy
Phenomenal Film Handler

Posts: 1661
From: San Francisco, CA
Registered: Dec 2006

posted 04-04-2011 08:47 AM

Thanks Steve. Actually, I initially tried the 'connector wiggle"
before I started tearing the unit apart. The PS appears to be
totally dead. I don't know what happened but I not only lost the
XD-10, but found the +15 & -15 volt fuses blown on a CP-200
power supply. Fortunately, spare fuses fixed that.

I tried pulling a power supply out of a computer in hopes of
getting the DTS up & running last night, but I didn't clearly
document where I was pulling cables off of and I've got two
"extra" jumper type cables out of the DTS and I can't figure
out where they go. And there is NO power supply wiring info
anywhere in the XD-10 documentation. (I can't find any)

So, I've got to pull another XD-10 outta the rack in
another auditorium, pop the cover off and figure out what
connects to what. I'm hoping to get it up and running at
least temporarily until I can run & get another power supply.

(And all of this on my day off. . . . )

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Adam Martin
I'm not even gonna point out the irony.

Posts: 3686
From: Dallas, TX
Registered: Nov 2000

posted 04-04-2011 10:32 AM

This is not for the actual power supply, but may help identify the internal connections:

DTS XD10P Internal Power Supply Board replacement instructions (TN-F594)

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99

posted 04-04-2011 06:27 PM

Yes, you can get a 300 watt replacement ATX supply at a local store. You may need to move the in line crimp on connectors off the old supply control lines and on to the new one though. This some what depends on the age of the unit. A dead unit can also be motherboard related so pay close attention to the tops of the 1500uf 6.3 volt electrolytics on the main board. If any of them are bulging then they will have to ALL be replaced. I have restored over a dozen motherboards now by recapping them. This problem is very common with XD-10's using A-Open motherboards. You will also see three green LEDs on the audio board. If any of those do not light up suspect a blown fuse on the time code board. They are special solder in SMT fuses and not difficult to replace with the right soldering tools.

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Jim Cassedy
Phenomenal Film Handler

Posts: 1661
From: San Francisco, CA
Registered: Dec 2006

posted 04-05-2011 09:10 PM

I got the XD-10 back up & running today.

I got an "official" DTS power supply, but I still had to
make a couple of mods (such as pulling the IDC type spade
lug adapter sockets off a couple of wires on the old PS
and moving them to the new one) before it would work.
(This has something to do with the front panel power switch)

I also moved all the filter inductor doughnuthingys from
the old power supply cables to the new ones.

I did check the mother board for deformed caps and didn't
see any. (I just fixed a friend's large screen TV last
week that had the 'bad caps in the power supply' problem.)

Also- - I noticed that the 4-pin connector that goes to
the front circuit board (with the LCD display on it) was
hot-glued to hold it in place. I didn't use glue when I
installed the new power supply and it worked fine on the
bench but wouldn't power up when put back in the rack.

D'oh! So, I had to pull the whole friggin' thing outta the
rack and take it apart again. I hate when that happens!

Apparantly, the plug on the power supply is not an exact fit
to the one on the front LCD circuit board. I had to bend the
pins a bit, find the "sweet spot" where it makes a good
connection and then hot-glue it in place like the old plug
on the original power supply was. That did the trick.

Now everything is back up & working OK!

. . . . for now

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999

posted 04-06-2011 03:35 AM

Make sure you are on firmware version 2.x.x or later (I think 2.2 is current). Earlier firmwares would leave you susceptible to hard drive crashing if you interrupted the reboot process. If it does crash, on an "installation" disc will get it back up and running again.

-Steve

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Jim Cassedy
Phenomenal Film Handler

Posts: 1661
From: San Francisco, CA
Registered: Dec 2006

posted 05-07-2011 01:32 PM

Oh Carp!
I've had ANOTHER DTS XD-10 die on me today.
This is the 2nd one in about 30 days.

I haven't had time to do complete trouble-shooting yet, but
it appears to be the same problem. (Power Supply Failure)

Both of these XD-10's are about 4 years old.
They are in two different booths on opposite sides of the
building, and I beleive they are fed from different phases
of the incoming utility power. (I think we get 440/3ph)

The fans were both working, and when I open them up
both units are "clean" with no dust, etc inside.

The capacitors on the mother board appear to be "OK".

This is very fustrating! I can't figure out why I've
experienced two failures in 30 days.

I'm going to give the unit one more 'go through' later
today, and if it doesn't come back to life I guess I'll
have to order another replacement power supply Monday.

(Murphy's Law: Both of these decided to fail on a weekend!)

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Monte L Fullmer
Film God

Posts: 8367
From: Nampa, Idaho, USA
Registered: Nov 2004

posted 05-07-2011 10:23 PM

...wonder if a diode in the bridge circuit opened up...

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99

posted 05-08-2011 01:18 PM

They're not worth the time to repair... they only cost ~30 bucks...

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Bruce Hansen
Jedi Master Film Handler

Posts: 847
From: Stone Mountain, GA, USA
Registered: Dec 1999

posted 05-08-2011 06:13 PM

Back some years ago, when I was doing field service, I noticed that there seem to be more problmes than usual in the spring and fall. I don't know why this is, maybe the change in temps and humidity. Has anyone else noticed this?

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Tony Bandiera Jr
Film God

Posts: 3067
From: Moreland Idaho
Registered: Apr 2004

posted 05-08-2011 11:55 PM

quote: Jim Cassedy
I don't know what happened but I not only lost the
XD-10, but found the +15 & -15 volt fuses blown on a CP-200
power supply.

and

quote:
This is the 2nd one in about 30 days. I haven't had time to do complete trouble-shooting yet, but
it appears to be the same problem. (Power Supply Failure)
They are in two different booths on opposite sides of the
building, and I beleive they are fed from different phases
of the incoming utility power. (I think we get 440/3ph)

Ok, all this tells me your location has serious power issues. Are the XD-10's and CP-200 P/S on quality surge strips at least? Better yet, they should be on a UPS. Do it now before you lose any more equipment. You should protect all your cinema processors, and digital players.

quote: Bruce Hansen
Back some years ago, when I was doing field service, I noticed that there seem to be more problmes than usual in the spring and fall. I don't know why this is, maybe the change in temps and humidity. Has anyone else noticed this?

Bruce, the problem is because the power companies defer maintenance and upgrades, the entire grid is stressed and most transformers are loaded to 150-200% of rated capacity. All it takes is one dip in voltage from any cause to drive the current up and blow out equipment. Switching surges, failing transformers and capacitor banks, etc. are very common when the weather warms up.

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Louis Bornwasser
Film God

Posts: 4441
From: prospect ky usa
Registered: Mar 2005

posted 05-09-2011 10:23 AM

Also, this is when stormy weather occurs. Louis

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System Notices
Forum Watchdog / Soup Nazi

Posts: 215

Registered: Apr 2004

posted 06-20-2015 05:01 PM

It has been 1503 days since the last post.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999

posted 06-20-2015 05:01 PM

Does anyone have a generic part number on the XD10 supply (not the DTS in-house number)?

I just had one go and I don't have a handy XD10 in the shop to see what they were using.

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