Troubleshooting my Dead PSU - Page 2 - RC Groups
Thread Tools
This thread is privately moderated by evltoy, who may elect to delete unwanted replies.
Aug 28, 2012, 12:56 PM
I'd rather be flying
baddb1's Avatar
Originally Posted by evltoy
Going to be tough... tell me about it

I do have a multimeter that can be used to check if the driver transistors are any good. In fact it has a NPN & PNP port for me to stick the transistors into.

Only problem.. I dont know how to use it as I have never needed to at school (10yrs ago).

If it helps the meter I have is a Jaytech QM1530
You can use the diode checker on your meter too which is what I would do so you don't have to remove the entire transistor. Its up to you though. You will need to google the transistor and find out which is the Base(B) , Collector(C), Emitter (E). The attached pic may help you to determine which is which.
Check out this video:
How to test a transistor (0 min 36 sec)

Using the diode checker on the meter, for a good transistor in one direction you will have continuity and the other direction you will not..(when checking from 'B' to 'E' or from 'B' to 'C'). A bad transistor will show continuity in BOTH directions.
Sign up now
to remove ads between posts

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion PSU powering 3 reversible ESC + 3 outrunner dc motors causing the PSU to trip. late_fee Power Systems 4 Aug 05, 2012 09:22 AM
Question Is my electric motor dead? Or just needs a cleaning? flymore Power Systems 3 Jul 07, 2012 02:59 AM
Discussion How to us a laptop PSU as my Charger PSU rukie Batteries and Chargers 3 Aug 23, 2011 01:51 PM
Discussion Troubleshooting "dead" lipo cloud-9 Batteries and Chargers 18 Jan 23, 2008 09:15 AM
Can anyone help me troubleshoot my dead br? webcrawler Vendor Talk 3 Feb 28, 2005 04:02 PM