Explain briefly the two reasons for an excessive flow in an electric bulb
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And the number one reason for excessive current: your meter is broken.
The very first thing you should do is make sure the instruments are actually working correctly.
You might also ask if the design is actually thought to work. Is it just this unit or all of them?
Is the supply voltage correct? Are other inputs within spec?
If all the above is true, then you can start to troubleshoot. Is the wiring correct? Can you narrow down the excess current by comparing voltages to a working unit?
Are the components the correct ones? Are they installed backwards? Are there visible issues with the circuit board?
If you have a working unit, unplug both of them and compare resistances between them.
Eventually you will find a wiring problem, or a component problem, or an adjustment problem.
If there is software involved, swap the ROM from a working unit.
The very first thing you should do is make sure the instruments are actually working correctly.
You might also ask if the design is actually thought to work. Is it just this unit or all of them?
Is the supply voltage correct? Are other inputs within spec?
If all the above is true, then you can start to troubleshoot. Is the wiring correct? Can you narrow down the excess current by comparing voltages to a working unit?
Are the components the correct ones? Are they installed backwards? Are there visible issues with the circuit board?
If you have a working unit, unplug both of them and compare resistances between them.
Eventually you will find a wiring problem, or a component problem, or an adjustment problem.
If there is software involved, swap the ROM from a working unit.
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