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Resistance for 10k0 at R26,27,29,30

PostPosted: Mon Apr 04, 2011 11:49 am
by jdier
I am checking someone else's work.

at R40,41,50,52,53,62,72 I measure between 8.65 and 9.73

However, the measurements on the same resistor at other locations is much lower:

R26 2.32
R27 2.32
R29 5.53
R30 5.53

I am working with a decent Mastertech DMM with the range set at 20K for this test.

20K0 measurements

PostPosted: Mon Apr 04, 2011 12:05 pm
by jdier
Looks like I have some problems with two of my 20k0's

R39 1481
R49 1988
R54 1464
R61 2000

Thinking 39 and 54 are bad.

PostPosted: Mon Apr 04, 2011 12:23 pm
by tpryan
http://www.electronics-radio.com/articl ... rement.php

Note the discussion of measuring resistance in-circuit down the page.

deleted

PostPosted: Mon Apr 04, 2011 12:26 pm
by jdier
removed.

PostPosted: Mon Apr 04, 2011 12:30 pm
by jdier
tpryan \$m[1]:http://www.electronics-radio.com/articles/test-methods/meters/multimeter-resistance-measurement.php

Note the discussion of measuring resistance in-circuit down the page.


Understood. I was chatting a buddy who was suggesting the same thing.

So, is there a way to test the components in the board without removing them?

The board works, but I purchased it from someone who had a few and said that this one had noticeably lower output.

I was going through the board checking all the resistors as a first step to figuring out where the problem may be.

Is there a smarter way for me to check this?