Marantz 2230 lamps not working after LED

Discussion in 'Marantz Audio' started by CavScout, Apr 16, 2018.

  1. CavScout

    CavScout Active Member

    Messages:
    380
    Pulled out an old 2230 that was sitting in my basement for a few years so I can change the fusebulbs to LED .
    There were only 2 orig bulbs working.
    After putting them in NONE of the lights work.

    I think this unit has 5 fuses but 4 are hardwired.
    Does anyone know if any of the 4 are in that lamp circuit ?
     

     

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  2. catrafter

    catrafter Marantz Specialist Subscriber

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    The green wires from the transformer usually power the fuse lamps.

    Tom
     
  3. CavScout

    CavScout Active Member

    Messages:
    380
    I am stumped. I looked at the wiring schematic and it appears that M001-M015 are the lamps and all of them are out but I dont know where to begin.
    I tried to read the schematic but it confuses me.
     
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  4. Fairlane

    Fairlane AK Subscriber Subscriber

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    Is the green wire being pinched any where when you put it back together and it broke or shorted? Did the wire break any where out of site? Is the wire still landed in the correct place and making a connection?
    Sounds dumb but are the lamps installed correctly and the right type and voltage?

    Start with the simple things first and post some pictures too if you can.
     
  5. Steven Tate

    Steven Tate AK Subscriber Subscriber

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    Many of the 22xx receivers had a Euro version that had a few extra fuses - I suppose to fit Euro regs. I'm not sure if the 2230 had such a version or not. I couldn't find a 2230 Euro schematic. But if you see extra glass fuses on a board inside, it is probably a Euro version, and one of them likely is in the lamp circuit (although the ones I have seen usually are not hard wired. They are usually snap-in fuse holders). If they are present, you should be able to check them with a DMM continuity tester. Also, like Fairlane said, are you sure the fuse lamps you used are the proper ones for this application?.
     
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  6. Fairlane

    Fairlane AK Subscriber Subscriber

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    1,603
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    Good point Steven about the extra fuses. My 2230 I had until recently was for the Canadian market and it had the extra hard wired fuses the US version did not have.
     
  7. CavScout

    CavScout Active Member

    Messages:
    380
    Thanks Fairlane , you put me on the right path. I followed the green wire from the transformer which led to the hardwired fuse board that others referred to.
    The tricky part was that the fuses were all covered with rubber insulators and even when I stripped the insulated fuse I could still see the fuse wire intact. Upon removal of that fuse I saw that the fuse wire blew right under its metal cap (extremely hard to see).
    Anyway, new fuse soldered in and all is good.
     

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  8. Fairlane

    Fairlane AK Subscriber Subscriber

    Messages:
    1,603
    Location:
    West San Jose CA
    Sweet looking 2230. Have you done the stereo light lamps?
     
  9. CavScout

    CavScout Active Member

    Messages:
    380
    If you mean the lights that illuminate the word STEREO it works so I didn't have to touch that
     

     

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