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Beomaster 6000 display problems

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fuxtor
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fuxtor posted on Sat, Jul 3 2021 2:59 AM

I have a Beomaster 6000 which seems to have missing parts to the display? Is this most likely burnt out LEDs?

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chartz
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Hi,

Not burnt, but the tiny filament that connects them to the PCB is fragile and finally breaks one day when the receiver is moved again.

It is fixable by using tiny SMD leds, but you need a special equipment.

See Rudy’s articles here:

https://beolover.blogspot.com/2018/04/beomaster-8000-repairing-led-segmented.html?m=1

Jacques

solderon29
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Contact Martin at Beoparts,he used to(hopefully still does ?)offer a rebuild of the display on an exchange basis.

It's crucial to get the correct brightness and uniformity otherwise it will look a "dog's dinner"

Nick

Dillen
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Dillen replied on Sat, Jul 3 2021 11:04 AM

I do. But only within EU.
The new VAT and import duty regulations effective from july 1st. with no minimum value means I will have to pay taxes, VAT and fees for everything imported from outside EU.
Yes, - also for items coming in for repairs. Danish customs cannot handle import/export in repair situations.
If I cannot present a receipt for the purchase of the item, I cannot import it. - Or at least it will take A LOT of emailing and documents back and forth.
And I will still have to pay a fee.

Martin

fuxtor
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That's too bad... I did notice one segment lit last night, I looked at the article on the smd replacement and maybe I'll try to gather more info.

fuxtor
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fuxtor replied on Sat, Jul 3 2021 11:45 PM

Not sure but maybe my display issue is related to the something else? I've noticed that blank segments are returning ? At the moment I'm only missing one segment?

sonavor
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chartz:
Hi,

 

Not burnt, but the tiny filament that connects them to the PCB is fragile and finally breaks one day when the receiver is moved again.

 

It is fixable by using tiny SMD leds, but you need a special equipment.

 

See Rudy’s articles here:

 

https://beolover.blogspot.com/2018/04/beomaster-8000-repairing-led-segmented.html?m=1

 

 

Hi Jacques,

That is actually one of my Beolover Blog posts from 2018.  I have done the Beomaster 8000, 6000 and Beocord 8004/9000 displays but I only set up my workbench for doing those every now and then. It is quite time consuming to replace those so I have been waiting until I need to do several at the same time. Currently I am not in that display segment repair mode :-).

This post has some more detail on the LED replacement task.

Regards,
John

 

sonavor
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fuxtor:

Not sure but maybe my display issue is related to the something else? I've noticed that blank segments are returning ? At the moment I'm only missing one segment?

The Beomaster 8000 often suffers from failures caused by failing connections. Aging solder joints at connector fittings to circuit boards as well as other solder connections. I would focus on resolving those issues first before trying to rebuild the display modules. 

-sonavor

sonavor
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I meant to add that the Beomaster 6000 (Type 225x) does have similar cables and board connectors.
However, the display modules, the display drivers and the microcomputer circuitry all live on the same board.  So there are no cables or board to board connectors involved there.  If it is a connection problem then it is likely a solder joint on the board.
I would go over the solder joints for the display segments first then back on the driver integrated circuits for decoding and displaying the segments.

You could also pull the display modules and test them by themselves on a little test jig like I did. That would tell you immediately if they are the source of the problem.  Be aware though that those modules can be a little tricky it remove and reinstall. They are soldered in place. Not plugged in unfortunately.

-sonavor

chartz
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sonavor:

That is actually one of my Beolover Blog posts from 2018.

Hi John,

Yes, my mistake, sorry! What a nice job this is… my second BM 8000 display is erratic by the way. I haven’t had the courage yet to work on it, or perhaps to send it over to Martin or to you!

Jacques

Dillen
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sonavor:

You could also pull the display modules and test them by themselves on a little test jig like I did. That would tell you immediately if they are the source of the problem.  Be aware though that those modules can be a little tricky it remove and reinstall. They are soldered in place. Not plugged in unfortunately.

-sonavor

And the unavoidable vibrations related to removing (and reinstalling unrestored) displays will often kill more segments.

Martin

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