|
If the side is wavy that's usually AC hum on the DC rails indicating filter capacitor (or sometimes B+ doubler diode) failure.
The raster not filling the screen horizontally is potentially a sign of a weak horizontal output/damper, but could also be a sign of B+ being below spec (which could be a result of the items from the previous paragraph).
B+ voltages and tubes should be checked.
Purity and convergence aren't hard to adjust if you have the right test patterns and sufficient patience... Dynamic convergence typically requires adjusting coils. Make sure you have a plastic hex diddle stick (AKA alignment tool). Do NOT use a metal hex key. Metal keys crack the adjustible slugs easily (which is very bad), and even if you have the godlike finesse/luck not to crack them the metal tool will it's self skew the adjustment such that if you have it perfect then it will be slightly off the moment you remove the tool. These are lessons I learned the hard way on convergence don't repeat my mistakes.
|