Hello Guys,

I would greatly appreciate it if someone could point me in the right direction. I want to be albe to trace the PCB and quickly find electronic defects in components with a Multimeter.
Are there any references on the web that I could look at? Any good books that someone can recommend? What am i tracing, is it just the 5V signal? If I don't hit a Transistor or Resistors I should still have close to the 5V, is this correct?

Thanks for your input.

There are capacitors as well in the 5V line . But most of the time in the pcbs there is a problem with the spindle motor controller .
As for me i check the 5v line if i dont get any thing bad then i check all the transistors and some resistors and check for any visible damage if there arent any i change the controller .

I've always found a multimeter too crude to be of much help.

I've had much better luck with a Huntron Tracker, which gives and instant visual, and is great for comparing a working vs. a non-working PCB. Using it is a bit of an art as well as science, but it helps me to spot bad semiconductors PDQ.

Jono

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Thank you for your replies and the valuable input guys.
How do you determine that the spindle motor is bad, obviously if the drive doesn't spin that’s a good indicator , but do you have no throughput if it's damaged?
I think that the Huntron Tracker is a bit out of my price range for the moment, but I will definitely keep it in mind. Any good electronic books or web resources recommendable for tracing?

Thanks again guys.

Jono
Which Huntron Tracker are you using? 2700 or 2700s?

Just the old 2000.

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http://www.datasaversllc.com