FC TWIN SNES side is light in color, NES side works fine.

[yellowz28ragtop]

Hello All,  I bought my FC Twin secondhand with no AC adapter or AV cables. I tried using a standard SNES ac adapter on it and it wouldn't come up. After trying the SNES adapter once and it not coming up, I ordered an original FC twin AC Adapter from ebay. and used some av jacks i found lying around the house. Now the original NES side works perfectly, but the Super NES side will power on and work except it is very light in color. You can hardly read works on the screen. I appreciate any help guys, I am a novice at these things. I hate to get rid of this system if it can be fixed fairly easily.