Beovision MX7000 factory reset?

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Solberg Posted: Thu, Apr 4 2019 8:16 PM

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Hi, does anyone know how to do a factory reset on Beovision MX7000?

Thanks!

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Guy replied on Fri, Apr 5 2019 9:45 AM

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Hi and welcome to Beoworld!

AFAIK there is no 'Factory Reset' on an MX7000.  It is possible to access a Service Mode, but you need to tack the back off the TV, turn it on and then short-circuit a small Service Mode plug/connector P700 on PCB42.  Only do this if you are happy working with the rear of a TV exposed as there are some very high (dangerous) voltages inside.  If not happy, leave to a professional.

You can adjust quite a few settings in Service Mode, but I don't think there is a factory reset.  What exactly are you trying to achieve?

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Solberg replied on Fri, Apr 5 2019 10:21 AM

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Hi, when my son connects his retroconsoles (Sega Saturn, PC-Engine) the screen is a little bit strange. He uses the Beo4 to adjust the screen, but the picture is sort of leaning to the left.

He have tried different settings found on Youtube etc, but it´s still leaning. For instance when there is a wall in a game at the bottom of the screeen, you can see 3 bricks from the wall on the left side and 4 or 5 bricks on the right side. So we thought maybe a reset could fix it. Any other ideas?

Thanks!

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Guy replied on Fri, Apr 5 2019 10:39 AM

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There are a number of geometric settings for the screen within the service mode that will sort out most alignment problems, but best left to an expert if not happy with opening up the TV yourself.  There's a service manual available on this site if you upgrade to Silver membership - any repairperson may need that but the adjustment itself would then be quite straightforward.

There may be other retro-gamers on the forum who are able to help.  Have you tried a different input device (eg DVD player) to see if you get the same problem?  Also, have you tried other high quality SCART cables, plus both inputs on the TV?

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Solberg replied on Fri, Apr 5 2019 3:40 PM

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We have tried different outputs and also bought scartcables from Retro Gaming Cables in UK (good quality cables), but the screen looks the same.

Thanks a lot for your tips and suggestions!

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tournedos replied on Sat, Apr 6 2019 9:02 AM

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Many TVs (including these) have a problem with the image shifting horizontally when you feed them an RGB signal. If you correct that in service settings, you will have a similar (but opposite direction) shift in composite mode. There may not be enough range in the settings to correct this completely. Not a bug but a feature. A ”factory reset” - if there is one, I don’t know - isn’t going to help, and replacing the cable won’t do anything either.

The problem/feature may also be in the source. Usually a game console or such produces natively RGB, then the composite signal is formed by processing that and this involves s a delay. When this delayed composite output doubles as the sync signal for RGB, the delay causes the image to shift to the left.

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Solberg replied on Sat, Apr 6 2019 10:37 AM

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Ok, thanks a lot!