Quote:
Originally Posted by Tom9589
There's something confusing about the SAMS schematic that Kevin Keuhn attached in post 192. We all know that dashed lines on a SAMS means an alternative circuit that may have come about on a later chassis.
Look at C3D. The alternate circuit has the positive side of C3D connected to R54. However, it also shows that the negative side of C3D is connected to +245V. That is definitely an error as C3 is a four section electrolytic with a common ground. Since C3A-C are all in the power supply, their negative sides all go to ground.
What gives? SAMS error?
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What my hard copy of the Sam's for this TV shows is that C3A-C3C are in one can and C3D is a separate non-polarized cap in some models in a small note on the bottom of the schematic which is what that is all about.
I hope that helps you out.