No Erarth
David,
I once discovered the "No Earth" problem as yours was, by this method
Imagine if you will, late in the evening hot and sweaty in a cramped area
set is powered on, after market power supply
Probing with a meter
decide to turn the thing over
one sweaty hand on the chassis, reach the other sweaty hand to support the connecting cable
"WACK"
full HT through the chest and both arms
Problem diagnosed
The outer shielding had become detached from the plug
I can't remember what the set was, maybe some sort of drive in theater audio amplifier
but I remember the incident vividly!
Side note - the particular drive-in had all 110 volt equipment, patched to 240 volt operation
It was a steep learning curve
How did I come to be there - apparently one look and no one else would touch it, this I was told much later, and here I was all bright and innocent thinking "How lucky I was to get the job"
cheers rod ps no laughing please
|