Re: Rca 42la45rq
YouTube "how to test bridge rectifier".
You should should see 4 diodes. If one or more is shorted, it is bad. A good bridge rectifier has a voltage drop of 0.5 to 0.7 on the diode check function. A good diode has a voltage drop one way and an open circuit the other way. Most DMM's with a diode check fuction will beep a continuous tone when there is a shorted diode. If you find a bad one in circuit, lift a leg or take it out and remeasure it again. Different diodes have different voltage drops, so you have to do research and check what that diode supposed to have for a voltage drop.
YouTube "how to test bridge rectifier".
You should should see 4 diodes. If one or more is shorted, it is bad. A good bridge rectifier has a voltage drop of 0.5 to 0.7 on the diode check function. A good diode has a voltage drop one way and an open circuit the other way. Most DMM's with a diode check fuction will beep a continuous tone when there is a shorted diode. If you find a bad one in circuit, lift a leg or take it out and remeasure it again. Different diodes have different voltage drops, so you have to do research and check what that diode supposed to have for a voltage drop.
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