DW12 wrote on 2023-02-25, 16:31:

Some time ago I bought a lot of 5 untested sound, graphics and other PC cards. One of them is a PCI Rendition Verite 2200 4MB card made by Kasan. Recently I have finally found time to test and repair it. I've noticed that two 100uF caps have leaked and one 22uF cap was missing completely, so I decided to replace all SMD electrolytic caps as they could leak in the future too. After desoldering old caps, cleaning the board and soldering new caps I've tested the card and it's working mostly fine (only problem that I've noticed is that there are slightly visible vertical, darker line spots when on Windows desktop in 640x480 resolution, in other resolutions they are not visible or barely visible, in 3D mode image looks ok - tested in Monster Truck Madness 2).

There is not a lot of material on the internet about this particular card, but looking at pictures of it here: http://www.yjfy.com/Museum/video/Blitz_2200.htm, I've spotted a possibly missing transistor on my card. It's the one to the left of main Rendition chip between two 22uF electrolytic caps. Can anyone who also have this card check/post pictures of it and read the markings on that transistor? Maybe it only has to be present in TV-Out variant of the board? I have a variant without the TV-Out connector.

Here are the pictures of my card before and after recap. I've marked place on the board with missing transistor.

Here are a couple of pictures from the spot you have marked.
My card has VIDEO-OUT and SVHS-OUT.
I hope these will help you.

https://drive.google.com/file/d/16Xtnauy_NOdN … iew?usp=sharing

https://drive.google.com/file/d/16RcnUAWS20nX … iew?usp=sharing

Looks like those two have a slightly different PCB layout.

I am inclined to think that the transistors are related to the TV-Out functions which your card doesn't have, but you may be able to trace out those locations with a multimeter to shed some more light on the situation. If there aren't any holes or broken legs sticking out the back of the board I highly doubt it had any components there.

This is a super cool card though! I've never seen one before.

A line on the display in 2D mode is usually not a good sign for the graphics chip itself (regardless of the type), but you could also go around the whole card with a magnifier looking for any broken or loose solder joints. I also like to poke\prod\squeeze different chips while it's running to see if the artifacts change at all.

Thanks for the replies!

I've had some time to take a closer look at the card and it looks like this transistor is indeed part of the TV-Out circuit. It leads to the big IC chip which is missing on my card (Chrontel CH7003A-V). Apperantly it is a digital PC to TV encoder according to datasheet I found on the internet: https://www.digchip.com/datasheets/parts/data … /095/CH7003.php. Either way, thank you TASOS for the pics, there is not much about this card on the internet so more material is appreciated.

I also checked all solder joints and they look ok. Will have to do more testing.

DW12 wrote on 2023-03-21, 23:43:

Thanks for the replies!

I've had some time to take a closer look at the card and it looks like this transistor is indeed part of the TV-Out circuit. It leads to the big IC chip which is missing on my card (Chrontel CH7003A-V). Apperantly it is a digital PC to TV encoder according to datasheet I found on the internet: https://www.digchip.com/datasheets/parts/data … /095/CH7003.php. Either way, thank you TASOS for the pics, there is not much about this card on the internet so more material is appreciated.

I also checked all solder joints and they look ok. Will have to do more testing.

No problem , you are welcome.

In the other thread about Verite cards , i have left links with photo's from my card , just in case.