SCR sweep is something I never wrapped my head around.
findemkeepem seems to have a good feel for them. I did
lots of RCA's & some Philcos & fortunately never had a dog.
Worse thing was a bad H osc board blowing one of the SCR's.
Slow start without sweep will only prove out the PS & probably
the low level stuff. Sweep problems are where slow start shines
on SS TV's. Just never had to do it on an SCR set so not sure
if its safe.
A few hints for slow start. Using a Power Rite or eq on SS sets......
1) unplug the degauser. It draws a ton of current at start & can
even pop the breaker on the power rite.
2) start at 75V & slowly raise til it starts. Watch the meter !
Keep it under 2A. As you turn it up the current should slowly
drop til its in the .75 - 1 amp range.
3) If current goes UP with voltage use all your senses to find
the problem. FEEL the HOT, SMELL for burning & arcing.
LOOK for puss coming out of FBT or abnormalities in the
raster , smoke. LISTEN for crackling. Also if normal before you raise
voltage tap around especially the H osc & H. drive.
Thats the short story. A book could be written on other techniques
& procedures such as when to jump the ON/OFF relay, sub a
start voltage etc. Thats what this list is for.
73 Zeno
LFOD !