1980 RCA Colortrak 25" troubleshooting help

[zeno]

Start by tapping around lightly.
Check the CRT socket for cold joints.
Bright white w/retrace almost always means:
1) loss of 200v supply off flyback
2) bad drive from luma causing the 3 outputs to go very low.
3) too much G-2
4) on SOME sets H-K short on CRT ! Instead of going the color
of the shorted gun it will go white !
Keep in mind low cathode gives brite pix & hi gives black.

Second thing is the tuner PKG. Some used one big tuner others
used used two PKG's plugged together. Where wire bundles
come in or plug in resolder were they come in. Caused all kinds
of intermittents but probably NOT yours.

OH yah, how about some nudies of the chassis ?

73 Zeno