BARCO OCM 2840 28" Monitor Colour Issue

[MintyTheCat]

Hello all,

I plugged in my Barco Monitor the other day and all was well; I had had some fears as it had been in storage for the last ten months or so but all went well. I then used it for about a Week without any issues.

I turned it on last night and found that everything looks very blue and even blacks end up being blue.

I should note that the Scart Connector on the back has sometimes needed a bit of wiggling to get it to display the correct colours but no amount of wiggling resulted in the correct colours being shown. As such, I am wondering if anyone has any ideas.

It may be that it's a mechanical issue with the Pins on the Connector but tbh I am the type of person who would end up discharging some massive Capacitor through himself and there's no way in hell that I'll entertain the notion of 'opening it up'.

Let me know if any of you have some ideas, cheers!

[zillion.ika]

Hello all,

I plugged in my Barco Monitor the other day and all was well; I had had some fears as it had been in storage for the last ten months or so but all went well. I then used it for about a Week without any issues.

I turned it on last night and found that everything looks very blue and even blacks end up being blue.

I should note that the Scart Connector on the back has sometimes needed a bit of wiggling to get it to display the correct colours but no amount of wiggling resulted in the correct colours being shown. As such, I am wondering if anyone has any ideas.

It may be that it's a mechanical issue with the Pins on the Connector but tbh I am the type of person who would end up discharging some massive Capacitor through himself and there's no way in hell that I'll entertain the notion of 'opening it up'.

Let me know if any of you have some ideas, cheers!

I have the same Barco RGB monitor (I think you commented on my youtube video - http://www.youtube.com/watch?v=6ebLyEG6fK4).

Your problem is probably the same as mine.

The inputs for this monitor are on a PCB that has an edge connector that plugs into the main monitor PCB (kindof like how you plug a video card into your computer's motherboard).

Unfortunately, my input PCB is really warped, probably due to heat. It is visibly curved, and doesn't make good contact with the main monitor PCB which is why some of the color signals get messed up.

In the description of my youtube video, I mentioned taking the input PCB out, cleaning the edge contacts, and cleaning the main PCB's connector slot with alcohol (like you'd clean out a cart connector for a game console). It fixed the problem, but only temporarily. The flaky connection issue has come back for mine. I'm not sure of a permanent solution.

[MintyTheCat]

Hello all,

I plugged in my Barco Monitor the other day and all was well; I had had some fears as it had been in storage for the last ten months or so but all went well. I then used it for about a Week without any issues.

I turned it on last night and found that everything looks very blue and even blacks end up being blue.

I should note that the Scart Connector on the back has sometimes needed a bit of wiggling to get it to display the correct colours but no amount of wiggling resulted in the correct colours being shown. As such, I am wondering if anyone has any ideas.

It may be that it's a mechanical issue with the Pins on the Connector but tbh I am the type of person who would end up discharging some massive Capacitor through himself and there's no way in hell that I'll entertain the notion of 'opening it up'.

Let me know if any of you have some ideas, cheers!

I have the same Barco RGB monitor (I think you commented on my youtube video - http://www.youtube.com/watch?v=6ebLyEG6fK4).

Your problem is probably the same as mine.

The inputs for this monitor are on a PCB that has an edge connector that plugs into the main monitor PCB (kindof like how you plug a video card into your computer's motherboard).

Unfortunately, my input PCB is really warped, probably due to heat. It is visibly curved, and doesn't make good contact with the main monitor PCB which is why some of the color signals get messed up.

In the description of my youtube video, I mentioned taking the input PCB out, cleaning the edge contacts, and cleaning the main PCB's connector slot with alcohol (like you'd clean out a cart connector for a game console). It fixed the problem, but only temporarily. The flaky connection issue has come back for mine. I'm not sure of a permanent solution.

Hello zillion.ika,

yes, that was me - small world it is that we reside in

I had thought that it'd be something like that but I am still too wary to open the Monitor up.

I wonder if the Connector Board was incorrectly replaced at some stage and ended up being too close to a heat source?

I doubt that my Connector Board is warped and tbh it would really surprise me as BARCO make good quality Monitors.

I think that what I'll do is to simply try the 9-pin D-Sub given that Fudoh managed to find the Pinout for me.

I appreciate you getting back to me on this, zillion.ika - cheers!

[zillion.ika]

I had thought that it'd be something like that but I am still too wary to open the Monitor up.

I wonder if the Connector Board was incorrectly replaced at some stage and ended up being too close to a heat source?

I doubt that my Connector Board is warped and tbh it would really surprise me as BARCO make good quality Monitors.

By design, the connector board IS right next to the tube. Probably not a great idea.

It could just be a bad design. There is very little air flow and TVs produce a lot of heat!

Also, I have no idea what year mine was made, but they've got to be around 20 years old!


If you do decide to open it up be careful. It is made to be serviced and the back panel does kinda flip out so you can work on it. It's kinda neat.

I need to make some adjustments to mine, so maybe I'll take some pictures or something so you can see where the adjustment pots are.

[MintyTheCat]

I had thought that it'd be something like that but I am still too wary to open the Monitor up.

I wonder if the Connector Board was incorrectly replaced at some stage and ended up being too close to a heat source?

I doubt that my Connector Board is warped and tbh it would really surprise me as BARCO make good quality Monitors.

By design, the connector board IS right next to the tube. Probably not a great idea.

It could just be a bad design. There is very little air flow and TVs produce a lot of heat!

Also, I have no idea what year mine was made, but they've got to be around 20 years old!


If you do decide to open it up be careful. It is made to be serviced and the back panel does kinda flip out so you can work on it. It's kinda neat.

I need to make some adjustments to mine, so maybe I'll take some pictures or something so you can see where the adjustment pots are.

Yes, could be poor design by the sounds of things. Yes, I'd estimate them to be around 16-20+ Years old myself too.

Yes, I am no 'high Voltage' Bloke - I work with machines that are fairly low Current but my reputation for making mistakes with Electronics is far too well pronounced I will not dare to open it up; the 9-pin Sub should be adequate for Video-In and although my Pots are 'off' I would not dare touch them

Cheers.