Troubleshooting (part 4)

by admin on December 7, 2017

So How did you do?  Did you build you troubleshooting guide for no Power?  Did you start?  I hope so, the best way to do anything is to “jump in” with both feet or “go for it”. Nike’s ad is in a similar vein: “Just Do It”

As promised, I’ll show you my troubleshooting guide:  troubleshooting-procedure_no_power  It is a Microsoft Word document so you can take it and adapt it for your own use. 

I’ll assume some things:
You have a work area that has the required AC power for whatever region of the world you happen to be in i.e. 120vac/60Hz here in the US.  I recommend a power strip or switched source that allows you turn it off independently of your lights and test equipment.  You don’t want to rely on pulling the cord out of the socket as your disconnect.  Most power strips have a circuit breaker or other protection built in.  If you’re buying one be sure that it does.  This will provide you with an additional measure of protection.  Also I’d get one that has some type of power-on indication.

Some notes as you read through the procedure.  I tried to make it as generic as possible without becoming overly complex.  If you have a specific appliance down to the make and model, you can make a very concise procedure that is specific to your appliance.  You need to have some common sense while using this.


  1. Does the device have a power applied indicator?  A couple of my PC’s have lights on the back near the power connector that light if AC is applied.  Others show power on by lighting or blinking the LED’s on the front some have no indication.  Only our newest TV has a power applied LED visible when power is applied but the set is “OFF”.  It is actually indicating that the power supply +5Vsb (standby) is on
  2. When checking fuses, always use an ohm meter.  I’ve seen fuses where the link was broken below the glass envelope and so visually appeared to be good.
  3. Most consumer appliances, TV’s VCR’s etc included do NOT have fuses accessible from outside the cabinet.
  4. The standard legal disclaimer is don’t attempt any of this unless you’re qualified to do so.  I can’t judge or validate your capability from behind a computer screen.  You’re a big boy or a big girl and need to make your own responsible decision. 
  5. I recommend having a printed out copy right beside you as you do your work.  Re-arrange the cells so that you have room to write in them.  Make this a working document. 
  6. I recommend adding a column for the date & time.  You might even have a start/stop time.  It will allow you to evaluate yourself or your staff’s ability to accurately & quickly perform the steps.   If you add enough columns you might want to change the orientation of the paper. 
  7. Notice that the footer of the document tells you a couple of things.  It tells you the title of the document so you can find it on your computer when you forget where you saved it and, it tells you how many pages there are so you can ensure that you have the entire procedure every time you use it.  I use this so often for my procedures that I have created a macro that does the footer for me automatically.  You might want to do the same.

If for some reason you can’t open the document, let me know and I’ll convert it to pdf and post that version too.  Again, you should really have it as a document that you can manipulate, change and edit.  Till next time…  RD

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