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Luxman 5M21
Luxman 5M21
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Old Today, 01:03 AM   #51
carlmart is online now carlmart  Brazil
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Join Date: Mar 2001
Location: Brazil
Yes, because that resistor is the constant current source resistor, which should go from trimmer mid point to -V.

In the 5M21 I know that resistor is 120K, instead of 118K. A negligible difference.

Luxman forgot to put it on their schematic. I wonder why or what for.
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Old Today, 02:09 PM   #52
rfitts46 is online now rfitts46  United States
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Join Date: Jan 2014
Location: New Hampshire
Glad you had me look at the resistors again. Decided to clean this side of the board, still need to resolve the oscillation issue. While cleaning one of the resistors a lead lifted, was not soldered properly. Cleaned up this area good and resoldered the lead.
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