Dina 2 In 1 Pal AV mod

[vintagegamecrazy]

So I have a boxed console that I've done some repair on, tested the power supply voltages and fixed the broken SG-1000 switch but the RF is bad (seems common) for these and it looks like the only way to fix it is to AV mod it. Can anyone provide a guide for this unit? There used to be pictures on line somewhere but they are gone now. I am very good with soldering and repair but I am not that good at going through a motherboard myself to figure out on my own where each leg on the video processor is. If anyone can help me out than thanks in advance.

 

[the_crayon_king]

On 1/18/2022 at 2:28 PM, vintagegamecrazy said:

So I have a boxed console that I've done some repair on, tested the power supply voltages and fixed the broken SG-1000 switch but the RF is bad (seems common) for these and it looks like the only way to fix it is to AV mod it. Can anyone provide a guide for this unit? There used to be pictures on line somewhere but they are gone now. I am very good with soldering and repair but I am not that good at going through a motherboard myself to figure out on my own where each leg on the video processor is. If anyone can help me out than thanks in advance.

 

@Dopy25 may have tried the general AV board I made.

It should work on about any consoles RF (pre modulation) provided you know where to tap it.

You would attach the relevant parts and then adjust a pot until you get video. 

 

More details: https://atariage.com/forums/topic/328577-odyssey-2-av-board/

 

Board Location: https://oshpark.com/shared_projects/V8fikyx4

 

[Dopy25]

44 minutes ago, the_crayon_king said:

@Dopy25 may have tried the general AV board I made.

It should work on about any consoles RF (pre modulation) provided you know where to tap it.

You would attach the relevant parts and then adjust a pot until you get video. 

 

More details: https://atariage.com/forums/topic/328577-odyssey-2-av-board/

 

Board Location: https://oshpark.com/shared_projects/V8fikyx4

 

I have not yet had the chance to try it out, or order for that matter. But I should be able to give it a shot in the upcoming weeks. I will be ordering that exact board by this weekend. Thanks for the reminder!

[+Stephen Moss]

On 1/18/2022 at 7:28 PM, vintagegamecrazy said:

am not that good at going through a motherboard myself to figure out on my own where each leg on the video processor is

I am not familiar with that system but if all you are after is composite video and audio then instead of looking at het video processor try looking at the RF modulator as it may be easier to identify the video and audio inputs where they enter it and tap the signals from there. 

[vintagegamecrazy]

I haven't had the chance to look into it further and I will take the advice of trying to find leads at the modulator. I do know that from research that the RF modulator is junk and it is recommended to remove it since it overheats and just loses video completely and I noticed it on my own system. I will have to dive into this deeper soon.