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Jaxson

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#91226 8-Oct-2011 18:25
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Friend has one of these terrestrial receivers that has died, which I believe is common with these early units.

Is anyone privy to what is wrong with them/being sorted when they get repaired under warranty etc?

Right now it turns on and displays the menus etc via composite but not via hdmi.  More importantly it doesn't tune any stations, though it does appear to pause on the right frequencies when tuning.  The aerial at my place is perfect, so no worries there. 

As it stands it's stuff, just wondering if anyone knows anything about how to revive these?  I don't believe they have their DSE receipt any more so a return is unlikely.  Just thought I'd check on the vary unlikely off chance there is something that can be done to it.

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B1GGLZ
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  #531105 9-Oct-2011 08:59
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I had one of these from DSE replaced under the CGA after it failed at 2+ years.
I didn't have the receipt but as I knew the store I purchased from and the date of purchase they were able to locate my VISA receipt in their database.
It would seem repairs are not economical as they replaced it with a new Zinwell.

Jaxson

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  #531113 9-Oct-2011 09:24
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Ok thanks,

I'll pass this on.

I had thought about a software update or similar, but it appears it's hardware that is failing.

 
 
 
 


smartcat
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  #531744 11-Oct-2011 00:14
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Try changing the 3 capacitors as shown on the attached photo

https://cdn.geekzone.co.nz/imagessubs/6c4073169a410807b4837a2d7a7ffde7.jpg

On 3 out of 4 units this has fixed the problem

BE WARNED - a de-soldering station or equivalent is needed to remove the capacitors !


PimpMyMagic
267 posts

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  #531750 11-Oct-2011 01:08
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That's great to hear.
I've got a faulty one of these units too.
I'll give that fix a go - sounds like a likely cause - dried out electrolytics.
Appreciate the advice. 

B1GGLZ
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  #531764 11-Oct-2011 07:49
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smartcat: Try changing the 3 capacitors as shown on the attached photo

BE WARNED - a de-soldering station or equivalent is needed to remove the capacitors !



And will also invalidate any claim under warrantee or the CGA if it doesn't work.

Jaxson

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  #531782 11-Oct-2011 09:06
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smartcat: Try changing the 3 capacitors as shown on the attached photo


Thanks, that's the sort of thing I was hoping for.
Thank you very much for the heads up.

B1GGLZ: And will also invalidate any claim under warrantee or the CGA if it doesn't work.


Yes I think this avenue is done but thanks for mentioning it as I think it deserves to be stated.
(You never know who will read this stuff in the future)

I'll give it a go and report back.

Jaxson

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  #531798 11-Oct-2011 09:27
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smartcat: Try changing the 3 capacitors


Do you happen to know what values they are?
Just thought I'd ask in advance, so I could pick some up on the way home tonight.

From your picture they all appear to be a 'green' shade so it would make sense if one component was failing prematurely and it was a different type/brand to the others on the board.

The box I have is failing in a particular way, so it might be worth mentioning here how each persons is failing for future reference too.  This one has the following symptoms:

No hdmi output.
-Analogue out like composite/s-video appears to work.
Won't tune stations in.
-Appears to stop on the appropriate frequencies during tuning, but has no stored stations at the end of the tuning process.

 
 
 
 


hdinsider
551 posts

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  #531828 11-Oct-2011 10:39

Jaxson:
smartcat: Try changing the 3 capacitors


Do you happen to know what values they are?
Just thought I'd ask in advance, so I could pick some up on the way home tonight.

From your picture they all appear to be a 'green' shade so it would make sense if one component was failing prematurely and it was a different type/brand to the others on the board.

The box I have is failing in a particular way, so it might be worth mentioning here how each persons is failing for future reference too.  This one has the following symptoms:

No hdmi output.
-Analogue out like composite/s-video appears to work.
Won't tune stations in.
-Appears to stop on the appropriate frequencies during tuning, but has no stored stations at the end of the tuning process.


Just pulled one apart. They're 100uF 16V.




don't mess with me.... i'm the hd insider....

Jaxson

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  #531894 11-Oct-2011 12:21
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hdinsider: Just pulled one apart. They're 100uF 16V.


Thanks brother,

What do you reckon:

http://jaycar.co.nz/productView.asp?ID=RE6130

or

http://jaycar.co.nz/productView.asp?ID=RE6310

PimpMyMagic
267 posts

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  #532046 11-Oct-2011 18:23
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Either should be OK, but if you're visiting the Nth Shore store then go for the former, if they have them, because I bought the last two of the latter this afternoon. :)
I bought a 25v one for my third replacement - slightly fatter diam but it fitted OK.

Jaxson

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  #532088 11-Oct-2011 20:32
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smartcat: Try changing the 3 capacitors as shown on the attached photo

https://cdn.geekzone.co.nz/imagessubs/6c4073169a410807b4837a2d7a7ffde7.jpg

On 3 out of 4 units this has fixed the problem 



You mate are a legend, thanks very much.

Make that 4 out of 5 units.

Swapped mine out tonight, and everything is working perfectly.  Awesome.

I got the first ones on the jaycar list, but they were black anyway, which looked almost identical to all the ones that were there.  The ones I took out were not greenish as in the photo. 

All good, case closed!         

PimpMyMagic
267 posts

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  #532112 11-Oct-2011 21:37
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Yeah. Likewise my unit's back working.
The plumber's iron was a bit cumbersome but great if you want to remove several components at the same time. (also good for 16pin DILs).
Thanks for the round tuit!



Ogeek
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  #533992 16-Oct-2011 17:06

Thanks, folks

Saw this thread and thought it's worth a try. The three capacitors in question were identical to others on the board (not slightly larger and greener as in the posted picture) but once replaced the Zinwell box does what it should again. Please add one more success to the list.


Jaxson

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  #534075 16-Oct-2011 20:31
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Ogeek:  Please add one more success to the list. 


Good stuff aye.

Me thinks this thread will be very useful to a lot of people.

These were very popular initially, having had nearly a years jump on everyone else when terrestrial digital kicked off in NZ a few years back.  They all seem to have started failing at the same stage, presumably for the same reasons too. 

numen
7 posts

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  #542723 8-Nov-2011 17:43
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Marvellous !!

Jaxson quickly identified Zinwell capacitors (100uf 16v) as ec26 ec56 ec59 when I couldn't download photo.

Being a tyro I sharpened soldering iron tip,used a solder absorbing tape,and fine solder wire.Easy to overdo the solder so used ohm meter to check.

Many thanks

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