Op-Amp piggybacking

AI Overview:

To use a logic probe on an operational amplifier(op-amp), connect the probe's power leads to the circuit's power supply and ground, select the appropriate logic family setting, and then touch the probe's tip to the op-amp's input and output pins. The probe's LEDs or buzzer will indicate if the pin is a logic high, low, or pulsing, allowing you to quickly check the op-amp's digital-like behavior.

A lot of stupid people use AI instead of learning how circuits work.
 
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Like what vectorcollector said, many opamps can use voltages outside the range of 0V and 5V. On space invaders, all of the opamps involve 12V. Most logic probes cannot handle it.

I'd advise against using a logic probe to diagnose sound issues in general. Even if it was within a range that the probe could handle, the data wouldn't be super meaningful. A failure with opamps isn't always a blown output. Other failure modes include distortion which you really would need an oscilloscope to observe. Regardless of what AI says, you really shouldn't be using a logic probe for this.
 
Like what vectorcollector said, many opamps can use voltages outside the range of 0V and 5V. On space invaders, all of the opamps involve 12V. Most logic probes cannot handle it.

I'd advise against using a logic probe to diagnose sound issues in general. Even if it was within a range that the probe could handle, the data wouldn't be super meaningful. A failure with opamps isn't always a blown output. Other failure modes include distortion which you really would need an oscilloscope to observe. Regardless of what AI says, you really shouldn't be using a logic probe for this.
Ok, thanks for being helpful instead of a shithead that knows-it-all already, like HudsonArcade. Anyway, got it fixed myself already Mr Hudson, so there!
 
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