Also getting 100v from speaker positive to wall socket ground AND the same of the speaker negative.
Any thoughts would be greatly appreciated
Immediately disconnect this unit from the AC line and from the rest of the audio system,
and stop using it until the problem is repaired by an experienced technician.
This is very dangerous.
and stop using it until the problem is repaired by an experienced technician.
This is very dangerous.
No, not normal. Look for a failed death cap from line to chassis. Measure DCR from chassis to AC line (line and neutral) - you could have a short in the power transformer from primary to core. (Should read open) If you are not experienced enough to identify the problem the advice above should be followed.
Finally disconnect and do not use this amplifier until you identify and fix the cause of the problem
Finally disconnect and do not use this amplifier until you identify and fix the cause of the problem
Australia uses polarized plugs. I'm surprised the fuse didn't blow, though. There should be significant current flowing in the protective earth conductor.
As others have said already: This is not safe. You risk electrocuting yourself if you touch the chassis and something grounded at the same time.
Tom
As others have said already: This is not safe. You risk electrocuting yourself if you touch the chassis and something grounded at the same time.
Tom
If you measure with a high impedance voltmeter, like 10 meg, it can be normal: it is simply the leakage. You should test the resistance between the chassis and both sides of the mains plug.
If you read infinity, you can proceed with the next test: plug the appliance into the mains, and measure the AC current between the chassis and the earth of the outlet; it should not exceed 200~300µA
If you read infinity, you can proceed with the next test: plug the appliance into the mains, and measure the AC current between the chassis and the earth of the outlet; it should not exceed 200~300µA