hello there, can you teach me how to check IC regulator using multimeter without powering that item.
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checking regulator IC using multimeter?
hello there, can you teach me how to check IC regulator using multimeter without powering that item.
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As Ronald Green said, you must have power. All you will be reading is 5 volts or zero volts on the pins. You must know the following 1) Have the correct schmatics to the IC. 2) You must know how to read digital logic schmatics which includes AND gates,Nan gates, Or gates, Nor gates and a few more. Ex. AND gate must have two inputs to get out an output. OR gate must have one of the two inputs to get an output and etc. To check IC components you need to know digital logic.
No. You cannot check for proper operation of an IC regulator using the ohms function. You must power it up.
You need to know:
1. The manufacturer's part number of the IC regulator,
2. What pins the input, output, and control are on, and,
3. The full-load regulated output voltage of the IC.
You take it from here.
http://www.circuitstoday.com/ic-voltage-regulators