RCA CTC 117, or 118, or 120. Not sure which. Picture is black and white.

[MRX37]

Someone gave me this RCA colortrak console TV. It was made in June 1984, and according to the schematic diagram, it's either a CTC 117, 118, or 120.

The TV powers up fine. The picture looks fine, except that it's in black and white. Not a single OTA channel comes in in color.

Since the TV has a composite video input, I wanted to hook up a composite video source to see if the black and white picture was tuner related. However, I can't figure out how to switch the damn thing over to video mode! The #9 button is also labeled as "AUX", but I can find no combination to switch it over to video mode. Pressing "9" by itself displays an 'A" on the screen, which goes away. Pressing "09" takes me to channel 9, and pressing "99" takes me to channel 99.