1200XL - Clearpic or SuperVideo 2.1?

[+hueyjones70]

In an earlier post I mentioned that I had performed the SuperVideo 2.1 upgrade to a 1200XL and it didn't work out.  I did go back over my work and I even reinstalled the parts that were taken out.  I did not use the old parts but installed new capacitors, resistors, etc.  When I finished, I still had no video so I went back to the SV 2.1 and performed all of the steps again.  NO VIDEO/NO BOOT Then I installed the UAV and everything works with the UAV just as it should.  I am attaching a picture just in case someone with SV 2,1 experience might take a look to see if there is anything obvious such as wrong part removed and/or replaced.

[_The Doctor__]

something is missing...

Edited January 27 by _The Doctor__

[_The Doctor__]

you mean other than not putting the chip back in at u27?

 

cd 4050 b

 

without which video is a mess...

[+kheller2]

Are you using the original source material?

And you have the CV switch in the proper position for CV or SV?

 

SuperVideo 21XL oraz errata.pdf

[+hueyjones70]

I have a UAV installed, I removed it for the picture. I chose not to install the CV disable switch.

[Gunstar]

2 hours ago, hueyjones70 said:

In an earlier post I mentioned that I had performed the SuperVideo 2.1 upgrade to a 1200XL and it didn't work out.  I did go back over my work and I even reinstalled the parts that were taken out.  I did not use the old parts but installed new capacitors, resistors, etc.  When I finished, I still had no video so I went back to the SV 2.1 and performed all of the steps again.  NO VIDEO/NO BOOT Then I installed the UAV and everything works with the UAV just as it should.  I am attaching a picture just in case someone with SV 2,1 experience might take a look to see if there is anything obvious such as wrong part removed and/or replaced.

I'll take a look at my SV 2.1 upgrade for you tomorrow and compare. It's been quite a few years now...but mine works perfectly and did the first time I tested it.