Saturn Model 2 Mod Trouble: No Video

[RaiderzRule]

So I modded a model 2, 32 pin saturn. When I powered up the saturn the disc started spinning but all there was on the tv was a black screen. So I took out the mod and placed the ribbon back into its original connection and when i powered up the saturn the back screen showed up again. Any suggestion to fix this issue would be much appreciated.

[RaiderzRule]

Please can someone give a few suggestions to what might be causing this issue. Everything seems to be working except I get a black screen everytime i powered up the saturn. I tried 2 different tv's and cables and nothing worked so it has to be the saturn.

[Ziggy]

Did you try jiggling the A/V cord on the back of the Saturn? Look in the A/V plug, see if there's any bent pins.

When you took the mod chip out, was there anything left over? Did any solder get ANY where inside the Saturn? There might be a bridged connection some where. Did you solder the signal wire to the leg of the chip or did you do the AB method?

[Hobie-wan]

Did you get the ribbon cable plugged all the way back in with no accidental bending that could have broken a trace?

[Ziggy]

Is the ribbon cable in the right way (shouldn't be twisted)?