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Thomson Sky-HD (and Sky+) PSU failure
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admin
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Joined: 16 Jan 2008
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Location: A Greek island

PostPosted: Sat Feb 16, 2008 7:32 pm    Post subject: Reply with quote

Quote:
I keep planning to draw a circuit diagram for the thing. I assume none is available?

You assume correctly. Nobody supplies circuits nowadays. They point blank refuse.

Quote:
BTW. Please inform the company that does your payment system

The shopping cart uses "Cold Fusion". I think there's a problem with handling symbols but I've passed your comment to our software engineer.
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admin
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PostPosted: Sat Feb 16, 2008 11:33 pm    Post subject: Reply with quote

OK, I'm told the shopping cart will now permit you to use the "+" symbol in your email address.

The impossible we do at once. Unfortunately, power supply kits need a miracle (hopefully provided by UPS!)
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Taomyn
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Joined: 13 Feb 2008
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PostPosted: Sun Feb 17, 2008 12:55 pm    Post subject: Reply with quote

admin wrote:
OK, I'm told the shopping cart will now permit you to use the "+" symbol in your email address.

The impossible we do at once. Unfortunately, power supply kits need a miracle (hopefully provided by UPS!)


Wow, that's service Very Happy
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admin
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PostPosted: Sun Feb 17, 2008 1:05 pm    Post subject: Reply with quote

Feel free to test it. Select payment by cheque and try NOT to confirm the order - unless you really want to order something. Or, if you'd like to test it fully, put "Testing Testing" in the name and address fields and send an order for something. It will be ignored by us.
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admin
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PostPosted: Mon Feb 18, 2008 4:25 pm    Post subject: Reply with quote

By the way: we are supplying 1200uF capacitors for C41 and C51. (I made a mistake on the kit list but I've uploaded the corrected version now).

I know that some PSUs had 2200uF fitted. We've tried this but they are a really tight fit and cause problems without actually solving any. 1200uF is quite adequate, provided that it's the gold-striped very low ESR, UHR (Ultra High Reliability) type that we supply.

Note: a gold stripe doesn't guarantee that a capacitor is any good but, if it doesn't have a gold stripe, be suspicious.
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admin
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PostPosted: Mon Feb 18, 2008 5:03 pm    Post subject: Reply with quote

GREAT NEWS!

The capacitors arrived today from America. UPS have done us proud. So I think some kits will be going out today (if Nicola has time) or tomorrow. Please check the kits carefully on arrival. Count the parts. We often manage to miss out the odd capacitor. I've tried to circumvent this quality control problem by making them tick lists, by weighing the packets and by SHOUTING. Nothing seems to work. So please check on arrival!
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Taomyn
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PostPosted: Tue Feb 19, 2008 2:13 pm    Post subject: Reply with quote

Mr. Green Yay, I got an email note to say that a rebuilt PSU will be shipped off today to me in sunny, yet cold, Luxembourg.

I just hope the postal service can live up to SatCure's so far.
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admin
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PostPosted: Tue Feb 19, 2008 9:30 pm    Post subject: Reply with quote

Question for somebody with their fan off.

What diameter are the holes in the fan. I'm wondering whether we should include nylon screws in the kit. What size do they need to be?

I see the fan is 30mm thick so I guess we'd need 40mm screws. M2.5 or M3 ?
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Ragnarok
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PostPosted: Thu Feb 21, 2008 6:11 pm    Post subject: Reply with quote

Kit arrived today. I'll check it in a bit.
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Ragnarok
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PostPosted: Thu Feb 21, 2008 8:15 pm    Post subject: Reply with quote

The holes on mine appear to be 4mm wide. not sure what sise screw that would be.

It's fiddley but I got it back on fine many times.

kit otherwise installed now and performing as expected.

Excelent service from SatCure yet again.


I also intend to fit a coaxial digital audio output which should be dead simple.
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Taomyn
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PostPosted: Fri Feb 22, 2008 12:12 pm    Post subject: Reply with quote

Woo-hoo - the rebuilt PSU arrived with me this morning. RoyalMail did you proud.

There goes my evening tonight, but it'll be worth it.

Any words of wisdom I should know about before attempting the swap? I did have a link somewhere on how to open a SkyHD box, so I'd better dig around for that.
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satbreak
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PostPosted: Fri Feb 22, 2008 1:16 pm    Post subject: Reply with quote

One screw at the back to remove, turn the box upside down and lift the 'tabs' so the plastic part of the case can slide forwards from the metal box, not far, maybe half an inch, then it can just be lifted off.

Taking off the lid of the metal box internally is what it looks like, screws at the side and you also have to unscrew the board with the push buttons on top.

Not hard, but best of luck.
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Taomyn
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PostPosted: Fri Feb 22, 2008 8:35 pm    Post subject: Reply with quote

Transplant went without a hitch. You were right about it being easy to take apart.

Only hardship was those stupid rubber mounts for the fan, so couldn't be bothered with them and just used all I had around - a pair of long bolts and nuts. It'll do for now.

Oddly, the old PSU seemed in pretty good condition, not that I'm an expert to tell anyway. Still, seeing what the track record is like for the standard ones I'm happy that it's been swapped out. Only time will tell if it's sorted the box out - hopefully I'll know one way or the other by the morning.
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admin
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PostPosted: Sat Feb 23, 2008 11:28 am    Post subject: Reply with quote

We will be able to supply new rubber supports if required. Also looks as if we'll be able to supply new fans or, alternatively, slower, slightly quieter fans.

EDIT: THE FANS WE ARE CURRENTLY OFFERING ARE STANDARD REPLACEMENTS.

We have found a similar, slower-running fan, but it has only two wires. We are not currently offering this as a replacement.


Last edited by admin on Sun Mar 16, 2008 8:43 pm; edited 1 time in total
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Taomyn
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PostPosted: Sat Feb 23, 2008 12:29 pm    Post subject: Reply with quote

admin wrote:
We will be able to supply new rubber supports if required. Also looks as if we'll be able to supply new fans or, alternatively, slower, slightly quieter fans.


If your rubber supports are similar I'd rather stick to what I've done and see if it gets noisy (I believe the really noisy one tends to be the larger one under the hard drive rather than this one). I think the ideal would be nuts and bolts but with rubber washers/grommets to absorb the vibration.

FYI. The new PSU passed my next test - the box finally stops crashing over night and switches back on from standby as it should. I'm going to try to leave the box running all day today to give it a good workout and see if the fan ever comes on as it hasn't done so far.
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