Thanks Minion
Checked the voltages and strangely got 35V between pins 9 and 10. Should this not be 70V. Other than that all seems to measure out ok.
The beast in question is the following.
Checked the voltages and strangely got 35V between pins 9 and 10. Should this not be 70V. Other than that all seems to measure out ok.
The beast in question is the following.
An externally hosted image should be here but it was not working when we last tested it.
Pins 9 and 10 are Vin+ and Vin- not V+ and V- you should mesure no voltage between the two. The difference between these pins will be amplified by how ever much gain the amplifier has and move the output to just the positive or negative rail. You need to figure out what the cause of this voltage is I don't have a schematic for your amp and your picture isn't working so Im not sure what to check first but it sounds like there is a short to power somewhere or something hooked up wrong.
Just a quick update on voltages.
Pin1 to ground +36.2
Pin4 to ground -36.1
Pin3 to ground +34.6
Pin9 to ground +34.1
Pin3 to Pin5 +1.4v
Any ideas. I am assuming the chip is fried as there is virtually full +ve supply on the input pin with the exception of the 1.4v between pin3 and +ve rail
Pin1 to ground +36.2
Pin4 to ground -36.1
Pin3 to ground +34.6
Pin9 to ground +34.1
Pin3 to Pin5 +1.4v
Any ideas. I am assuming the chip is fried as there is virtually full +ve supply on the input pin with the exception of the 1.4v between pin3 and +ve rail
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