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Thread: PL D500

  1. #11
    New Around These Parts
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    Jul 2017
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    7
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    PL D500

    Anyone?

  2. #12
    New Around These Parts
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    Jul 2017
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    PL d500

    Anyone use the d500 P-32 repair kit on ebay?

  3. #13
    Journeyman Member
    Join Date
    Dec 2012
    Location
    Orlando
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    74
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    Here are some parts of the D500 schematic that I re-drew awhile back. The original is too small to easily follow. I'm slowly working on (re-drawing) the rest of the circuitry.

    Click image for larger version. 

Name:	D-500 Mains Turn On Circuit_051016.jpg 
Views:	16 
Size:	51.4 KB 
ID:	29621Click image for larger version. 

Name:	D-500 Hi Z - Lo Z Circuit_051016.jpg 
Views:	21 
Size:	75.1 KB 
ID:	29622Click image for larger version. 

Name:	D-500 DC Sense-Infrasonic_High Temp Circuit_051016.jpg 
Views:	13 
Size:	59.5 KB 
ID:	29623

  4. #14
    New Around These Parts
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    Jul 2017
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    high voltage checking DC offset

    I am checking voltage for DC offset at point where all emitter resistors tie together I have the rail fuses out and the predrivers and outputs out. Somehow I have 62 volts on the right channel, I recently rebuilt the R and L amp board, Ideas are appreciated, thanks

  5. #15
    Journeyman Member
    Join Date
    Dec 2012
    Location
    Orlando
    Posts
    74
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    More re-drawn D500 schematics. I'm working on the rest of the LED meter(s) and control section next. I can't believe PL (attempted to) squeeze the entire schematic on one lousy page and made the print so small.

    Click image for larger version. 

Name:	Phase Linear D500_Left Channel Input_High Frequency Circuit_v1.0_081717.pdf 
Views:	9 
Size:	938.8 KB 
ID:	30041Click image for larger version. 

Name:	Phase Linear D500_Right Channel Input_v1.0_081717.pdf 
Views:	7 
Size:	840.1 KB 
ID:	30042

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