amr2
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Oct 23, 2017 at 9:31 AM
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amr2

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amr2 was last seen:
Oct 23, 2017 at 9:31 AM
    1. raycarr00
      raycarr00
      All trannies test good on L ch. still testing other components-7 legged freaks.
      Will replace resistors with metal film of same wattage. Keeping caps as their values are good-ESR as well.
      Yes, have schematic. No mention of how to set up probes to test -b, +b, etc. you taught me how. Thanks.
      The issues must be with the r channel. Not there yet.
      Thank you for your time.
    2. raycarr00
      raycarr00
      got it! ECB NC BCE-tests good. I don't know how to set up the probe on NC, though.
      now on the: blue ball cap with 3 red dots(98.1 ohm, 127 mH) / 2 resistors (2711 ohm&331.4 ohm)/ cap (1uf/ 50v)combo- MX-1000 Sub Circuit Board Changes
      Thanks.
      1. amr2
        amr2
        NC doesn't need to be tested. Do you have the schematic? I suggest you to test the output transistors and driver stage. You can solder some wires frome the amp board to the main board to do the tests.
        Sep 13, 2016
    3. raycarr00
      raycarr00
      both boards out and so far, all components are testing good on the L ch.
      How do I test the 7- legged A1349 gr- with meter on diode mode, one probe on one leg and with the other probe going from leg to leg, and again with the next legs?
      Thanks, again.
    4. raycarr00
      raycarr00
      on the yami mx1000. how are the meter probes placed on -lb, +lb, -hb, +hb, in, out, etc- one lead to ground and the other to one of the mentioned? also, both bias reading say 70v on r579 and r578 and don't change much when turning vr301-02. I have a protection light on.
      1. amr2
        amr2
        Hello. One lead to ground. About bias readings, probably there are some shorted output transistors.
        Sep 11, 2016
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