Film-Tech Forum ARCHIVE: DTS-6D power supply repair

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Topic: DTS-6D power supply repair

Ken Layton
Phenomenal Film Handler

Posts: 1452
From: Olympia, Wash. USA
Registered: Sep 1999

posted 04-20-2000 09:49 PM

For those that want to repair their own DTS-6D power supplies, here is what I have found goes wrong:
Symptom: Unit completely dead. Turning on power switch does absolutely nothing.

Cause: Fuse FS-1 inside the power supply is blown (3 amp GMA style normal blow). The Radio shack replacement is part number 270-1054.

Cure: Transistors Q1 and Q2 are shorted and must be replaced. These are both mounted on an aluminum heat sink. Both of them are the same part number: 2SC2625 which can be replaced by NTE/ECG 2308 or SK9131/2311 available at your local electronics supplier. Also check for shorted diodes, D14 (hidden under choke T-3) and D15. They are both # FR102 (ultra fast recovery types) and can be replaced by ECG 587 diodes (inexpensive).

These instructions apply to the TOPOWER model TOP230USS power supply (230 watt) inside the DTS-6D.

Also, while you have the power supply apart, take a few minutes to clean out all the crud from the fan and make sure it spins freely. This power supply needs that cooling fan!

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99

posted 04-21-2000 05:00 AM

Nice tip. Thanks Ken.

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99

posted 04-21-2000 08:36 AM

Thanks Ken,
I'll remember that if I get in a jam with one, but with the cost of a new one soooo low why even fix it? AT supplies are real cheap, they only go for $10.00 to $12.00 around Salt Lake City.
Mark

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Daryl Lund
Film Handler

Posts: 88
From: Chehalis,WA, USA
Registered: Feb 2000

posted 04-23-2000 12:00 PM

When the birds fly over my good friend ken laytons house.Do you know what they are saying? Cheap Cheap Cheap Cheap. Kenny is a very good friend but I must give him a bad time once and a while.

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Bruce McGee
Phenomenal Film Handler

Posts: 1776
From: Asheville, NC USA... Nowhere in Particular.
Registered: Aug 1999

posted 04-23-2000 12:58 PM

Cheap Cheap?

Because of cheap things, I am allowed to get more of the stuff that I want. Like FEATURES!

I appreciate you, Ken. Guys like you give the hobby (and the business) CLASS!

Bruce McGee (First-class tightwad--by circumstances, not preferences!)

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99

posted 04-23-2000 04:42 PM

Ken should get a raise with all of the little amounts of money he saves his theaters. This reminds me of the character "Joe" on NewsRadio.

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99

posted 04-23-2000 06:09 PM

Cheap it may be but its cheaper to just get a new one and replace the old....from a time standpoint anyway. Who knows, The AT supplies will probably be obsolete soon anyway so we will all be fixing them.
Mark

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Ken Layton
Phenomenal Film Handler

Posts: 1452
From: Olympia, Wash. USA
Registered: Sep 1999

posted 04-23-2000 07:41 PM

I forgot to mention that it took me all of five minutes to repair the power supply. That includes the time it took to warm up the soldering iron.

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Karen Hultgren
Master Film Handler

Posts: 492
From: Agoura Hills, CA, USA
Registered: Mar 2000

posted 05-12-2000 06:59 PM

If you go into our web site, in the cinema section, under techcenter, click on DTS-6D and troubleshooting. There is a guide there to help.

Karen at DTS

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