Oh nothing much, just an RCA DIMENSIA!!

[zeno]

For service line
Turn set on then off. Press & power buttons together.

Set R, G, & B bias controls to MIN
Set R, G, & B to MAX
Set Screen ( G-2) to just get a line.
Adjust 2 of the 3 BIAS controls for a white line.
Press power to get out of service.

Set Brite & contrast to max.
Adjust the R, B, & G DRIVE for best brite whites.

Probably best to mark the controls before starting. Also with age
you may have to compromise some by not running it to the max.

73 Zeno