does this unit check capacitors and diodes?
363429
You can check both using the ohms scale using any meter checking for shorts or opens and crude capacitor test by observing rate of charge or lack of this meter will do the job if you know what to look for. I use it for these test
1135497
Yes both: Capacitance in microfarads (uf/MFD) and 24 volts a/c which usually tests at 26 or 27 volts
704630
I don't believe so. It is powered by the PSU and simply checks the voltage of each connector to make sure that they are within specification.
1431904
Yes mine has a green light and a red light that goes off about every minute. This is letting you know your unit is working
484175
No, it will not test capacitors in circuit with reliability. When testing in circuit, you do not know whether there are other capacitors in series or parallel with it. It will give you a "Quazi" check, meaning that if it reads your capacitor value correctly, then you now have the problem of telling whether that capacitor is internally ok. This meter will check the value of a capacitor, but it will not check the internal part of a capacitor. There has been times which this meter shows perfect, but when checking with a OHM meter, the capacitor has a internal resistance of 75K instead of infinity. But, if this meter shows a capacitor being off value by a ways, there is a very good chance the capacitor is bad. Remember, there are 3 things that go bad on a capacitor for the most part. 1. Out Value, out of tolerance (This meter will show it). 2. Internal resistance (This meter will show SOME, but not all of this kind of breakdown). 3. Load breakdown (This meter will not show anything on load breakdown).
1146648
Yes....this device will give a read out of the cap which will be used to determine if the cap is defective based on the the rating indicated on the cap.eg: if the cap is rated at (4700 uf) and a reads (3500 uf )....cap is defective.
2247350
It can under the following conditions: The circuit is NOT powered-on. The cap to be measured is discharged manually by shorting it for 1-2 seconds before being measured/tested.
2058016
The instructions with my tester were very basic, but accurate. Written instructions included with any cheap capacitor tester, or multimeter are minimal at best. If you don't know how to use a cap tester it's best not to use one, until you take a class or two, large caps can kill you if you don't know what you're doing.
1444199
Yes it does but for some reason the unit has stopped working after some powere surges (brownouts)
2057525
Honestly the directions are confusing and I would put it to you this way. Unless you get a capacitor with a resistor on with a diode I think you'll be fine should you have a diode just reverse the wires so it will flow through. BUT if it flows in both directions then your self discharging capacitor has a blown diode. Other than that you can test a cap any which way I have found even though I do wonder why the lack of info. It has worked well for me and I understand it is a Made in China simplistic tool but its simple and cheap for quick diagnostics. I only use it for HVAC work.
225684
I've not used mine much, but the readings in capacitance mach the value of known good capacitors. I use a simple volt/ohm meter to check open or shorted capacitors. I can see lower than marked values on very old capacitors.
1967900
No. This will not check the power supply. This only checks the motherboard and components attached to it. Look for a power supply tester. They are only a few bucks though amazon.
1561145
No, but check the name plate, that will tell you the voltage and current draw, amps.
658962
It might. Best way is to pull the power board and see if all of the capacitors have the same value as those included in the kit. Capacitors are a very generic part, so if you need one not included in the kit, you can usually pick it up at Radio Shack. If your problem is a dimming screen, you can probably get all of the capacitors at Radio Shack and forget about the kit. The kit does provide instructions, although limited in scope, so unless you have some circuit board repair experience, leave it to the experts. Good luck!
2103348
I would say yes Pop out the Simms and check the voltage and chip configuration. That's what I did.
996236
Don't know for sure. Try googling youtube or other sources. Ours works great after replacing bad capacitors.
316382
In my opinion, no. Unless you know the exact circuit configuration and can definitely rule out parallel impedance or nonlinear components around the cap. There is quite a bit of info online about the tester and the signals used to execute the tests if you google around. Here is one example. It is in German but google will translate for you: http://www.mikrocontroller.net/articles/AVR_Transistortester . There is more if you look. I, myself, do not use this device for in-circuit testing.