[ludovictor]

It looks like some part of the image is blurred. Like the sampling phase is not set correctly.

[ludovictor]

So I contact VGP, because the warranty is over, they said I can’t RMA the OSSC. I’m very sad and disappointed. It’s a manufacturing error and not my fault. I just discovered this to late… And for me, the repair service is to expensive for me (for the moment) and mostly to just resolder each component…

Thank you @marqs for your help and your work again. I will continue to see your projects.

[ludovictor]

What I need to send ? All I ordered so the remote too, my order number ? What’s the postal address of videogameperfection to return my OSSC ? When I bought it, VGP were in united kingdom and now there were in Ireland

[ludovictor]

Oh yes it’s typo. I recheck and yes pin 3 is 3.28V.

Yes I bought it from VGP but the warranty is over … Can I really return the OSSC to be repair or refund ? I’m not familiar with this kind of problem or return

[ludovictor]

I measured all voltage pins from regulator. This is values :
Pin n°_____1______2______3______4______5
U7:_______3.28____0_____5.15____0_____1.88
U9:_______3.28____0_____3.28____0_____1.88
U15/16:___3.28____0_____3.28____0_____1.79
U6:_______5.16____0_____5.16____0_____3.26
U12/14:___3.28____0_____3.28____0_____1.18
U13:______3.28____0_____3.28____0_____2.46
U5:______5.15____0_____3.29____0

What do you think about these values ? I find U13 strange with the 2.46V.

[ludovictor]

Which voltage point can I measured ? I will make a list of each point that you ask me to measure and we will see if all regulator are ok.

Edit : I don’t want to miss important voltage point. Marqs, can you tell me which voltage points are important to measure ?

[ludovictor]

Because I don’t use the PSU that you sell, I measure the current comsuption : it is 400mA when there is no input/output connected and 670mA when the scart is connected with the setting for the gameboy player. So my PSU is ok (it doesn’t delivered too much current).
What kind of test can I do ?

[ludovictor]

Ok I send an email to videogameperfection. I feel stupid to don’t use it the first year to discovered that it had this problem …

Thank you marqs for your help and your work

[ludovictor]

I mean I just supply the ossc, it is turn on and no scart, no component no vga input are connected to the OSSC and the output is not connected. It is just working alone without input and output connected. And just like that, so no traitement, U1 U2 and U3 are hot and getting hotter by the time goes.
And when I use it (and he becomes hot too) the input is the scart for a PAL gamecube with the setting for the gameboy player gbihf+ossc+cli so the 384p with lineX2 or X3 I don’t remember.
The OSSC is on a table with nothing around it and the ambient temperature is ~26°C.

Sorry for my bad english

[ludovictor]

Yes it’s cutting after 3/4 hours of used. Like very short cut and components are hot

[ludovictor]

I measure output voltage for each regulator and they should be ok : I measure voltage close to 3,3V or 1,8V or 1,2V. So I don’t think the problem is a to high voltage.
Edit : and the fpga, the digitizer and the the hdmi component are hot without input or output video. Just the power supply
What can I try ? measure ? Or should I send it to you to take a look or repair it ?

[ludovictor]

I disassemble the top case to see each component. Yes the digitizer chip is really hot. When I touch the heatsink I can’t let my finger too long. The component used to convert in hdmi (near the hdmi port) is hot as well but less than the digitizer. And finally the FPGA is hot but less than the component near the hdmi and less than the digitizer.
But I find each component hot and not just warm. I take a look on the top and bottom of the PCB but I don’t see anything strange. Do you want picture of my PCB ?
What can I try ? I have a multimeter to measure some point

[ludovictor]

And when it’s too warm, there is short cut of the ossc (like it lose the signal for few second). Any idea ?

[ludovictor]

Less than I can’t touch for more than a second (because I can keep my hand on the bottom panel), but more than just to warm my feet. So I imagine that the FPGA is more and more warm than the panel. I understand that electronics warm when you use it, but warm like that without heatsink is it not strange ?

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