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Issue with tuning meter reddish tinge

Discussion in 'Marantz Audio' started by ChicagoTom, Jan 10, 2018.

  1. ChicagoTom

    ChicagoTom AK Subscriber Subscriber

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    Has anyone else had to deal with this before?

    My 2015's tuning meter has a reddish cast over part of the background. I'm not sure if it is as simple as new vellum. I'm hoping I won't need to find a new meter to fix such a cosmetic issue.

    Marantz 2015 c.jpg
     

     

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  2. Steven Tate

    Steven Tate AK Subscriber Subscriber

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    Cant tell from the photo, but I’ll bet that velum has turned brown nearest the bulb after years of service. I would at least open it up and get to the velum to take a look. Might be a good time to change over to LED fuse bulbs and replace the velum diffusers on the meter and dial.
     
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  3. Beamer302

    Beamer302 AK Subscriber Subscriber

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    All of the 2015's that I have worked on did not have a diffuser paper (vellum) on the back of the meter . Just change the light and see if there is a difference . I personally like to use warm white LED's when replacing the lights (lamps) . Some times the old incandescent fuse lamp will get dark on one end. There might be a burn mark or smoke residue on the back of the meter . Just some ideas .
     
    Last edited: Jan 12, 2018
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  4. ChicagoTom

    ChicagoTom AK Subscriber Subscriber

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    Thank you Stephen Tate and Beamer302!
     
  5. ChicagoTom

    ChicagoTom AK Subscriber Subscriber

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    By the way, if there is no diffuser paper behind the meter, where does the blue color come from? (I might be confused, are vellum and diffuser paper two different things??).
     
  6. Steven Tate

    Steven Tate AK Subscriber Subscriber

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    I believe the plastic back of the meter housing is blue, lending that color. I have not opened a 2015, so they may not have velum behind the meters. But the larger 22xx series does have velum paper diffuser behind the meters. I have replaced several of them and the meter color returned to its original color without the yellow or brown tint.
     

     

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  7. ChicagoTom

    ChicagoTom AK Subscriber Subscriber

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    My worst-case scenario is that I need a new meter, which would be hard to find. And if the plastic at the back of the meter is itself burned, I kinda doubt that can be repaired.
     
  8. Osibisa

    Osibisa AK Subscriber Subscriber

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    There is a pair on the auction site now if it comes down to it. Loosen the two screws on the lamp bracket, pull out of housing, and you should get a good view of the back of the meters.
     
  9. ChicagoTom

    ChicagoTom AK Subscriber Subscriber

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    Thanks Osisba! Did you mean there are 2 meters on the auction site now, because I just looked and did not see any meters, just bulbs - did I miss them?

    And thank you for the instructions on accessing my meter, I was reluctant to dick around there but your instructions are very helpful.
     
  10. Osibisa

    Osibisa AK Subscriber Subscriber

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  11. Osibisa

    Osibisa AK Subscriber Subscriber

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    Oh wait .... I mistook a 2245 for a 2015. Cross check the meter part number from s/m to see if it is the same one.

    Sorry
     
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  12. ChicagoTom

    ChicagoTom AK Subscriber Subscriber

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  13. Osibisa

    Osibisa AK Subscriber Subscriber

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    Your meter is part # 1M1104208
    The 2245 is 1M1104202, close but no cigar.
    That also means that the brief instructions I gave don't apply either :-(
     
  14. ChicagoTom

    ChicagoTom AK Subscriber Subscriber

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    Glad you caught me, I was just going to open the case right now. I may give it a look anyways.

    FYI, If this meter can be made to look nice again, I'll send it to Pat Fonte for recapping. If not, I plan on buying a nicer-looking 2015 to send instead.
     
  15. ChicagoTom

    ChicagoTom AK Subscriber Subscriber

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    Looks like I'd have to remove the tuning dial to get access to the meter, which is beyond my pay grade.

    P1060225.JPG
     
  16. Osibisa

    Osibisa AK Subscriber Subscriber

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    Found this from an old thread if it helps:

    "The way I did the meter lamp was to remove the black metal protector over the dial cord and then remove the two screws holding the lamp holder to the white lamp housing. You should be able to move the lamp holder back enough to get to the lamp behind the meter so that you can remove it and snap a new one in it's place.
    It's not the easiest to get to, I did the others through the front with the dial off."
     

     

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  17. Steven Tate

    Steven Tate AK Subscriber Subscriber

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    The meter in the photo does appear to have a browned velum. The brownish paper surrounding the blue back of the meter is the velum. It covers most of the back, which is the same color blue as the part you can see. I’ll bet the meter is fine and you just need a new velum.
     
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  18. ChicagoTom

    ChicagoTom AK Subscriber Subscriber

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    That helps a lot. I know you can assess with 100% confidence, but this gives me enough hope that the meter can be repaired with new vellum, which means I'll send my current unit off to Pat. It really doesn't look that bad:

    Marantz 2015 d.jpg Marantz 2015 b.jpg
     
  19. Steven Tate

    Steven Tate AK Subscriber Subscriber

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    That's a very nice looking unit. Definitely worth letting Pat do his magic. :thumbsup:
     

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