[glyphmon]

Dale,

Thank you for the insight about in-circuit vs out-of-circuit testing.  Admittedly, these were all in-circuit tests for convenience - quite a few were difficult to reach with the tester, let alone soldering iron.  Mike has highlighted those that varied by greater than 20% as being of concern for him which I absolutely agree with.  Certainly the ones that were approaching the 20% threshold I was nervous about in the first place.  Would your suggestion then be that these others also be replaced?  Given the margin of error with in-circuit testing, they seem like fair game once again.

17 - 20,000 ohms - 23,700 ohms (over by 18.5%)
19 - 10,000 ohms - 11,960 ohms (over by 19.6%)
29 - 70,000 ohms - 79,000 ohms (over by 12.9%)
30 - 32,000 ohms - 37,400 ohms (over by 16.9%)
50 - 1,000,000 ohms - 1,140,000 ohms (over by 14.0%)
53 - 1,000,000 ohms - 1,130,000 ohms (over by 13.0%)

These were certainly much closer to spec but still over:
39 - 51,000 ohms - 55,100 ohms (over by 8.0%)
41 - 490,000 ohms - 500,000 ohms (over by 2.0%)

Would you say that anything that tests under while in-circuit is likely fine as long as it's within the 20% disparity?  Most seem fine but with this refined understanding, 33 gives me pause.
6 - 61,000 ohms - 57,000 ohms (under by 6.6%)
33 - 1,000 ohms - 853 ohms (under by 14.7%)
46 - 51,000 ohms - 49,700 ohms (under by 2.5%)
55 - 490,000 ohms - 480,000 ohms (under by 2.0%)
58 - 1,000,000 ohms - 980,000 ohms (under by 2.0%)

Best wishes,
Roy