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Thread: Yamaha EM1600

  1. #1
    Supporting Member The Dude's Avatar
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    Yamaha EM1600

    Looking for a service manual for the Yamaha EM1600 Powered Mixer or specifically the part numbers for the 1/4" 7 pin channel input jacks and also the speaker jacks. I've scoured the web and can't find a manual or jacks. I also emailed Yamaha, but they haven't been exactly quick in the past, so I'm not expecting anything soon...THX.

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    Lifetime Member Enzo's Avatar
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    Phone calls often work far better than email when you want to know something.

    The parts list is not included in this manual. The input jacks are just TRS with cutouts. The speaker jacks are simple TS jacks.
    Attached Files Attached Files

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    Supporting Member The Dude's Avatar
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    Thanks for posting the manual Enzo. At least I have designation #'s now. That'll make it easier when I do get in touch with Yamaha. There were no designation #'s on the PCB's.

    The input jacks are PCB mounted and having the specific pin layout would make things much easier. The speaker jacks have thin bodies and the holes are very close together making it difficult (albeit not impossible) to "adapt" something. I looked at data sheets for numerous jacks on Mouser's site and several others but could find nothing close. I could surely make something work, but it'd be much easer and less time consuming just having the original parts.

    I've had the pleasure of calling Yamaha several times in the past and here's how it usually goes:

    Me- I'm looking for parts for a Yamaha model "so and so".
    Woman who knows nothing about electronics- Do you have part numbers?
    Me- No, but I have circuit board designation numbers and descriptions.
    Woman who knows nothing about electronics- I'll have to direct you to technical service to get you part numbers.
    Me- OK.
    Holding................holding......................hold ing...................still holding.............holding some more............etc.
    Machine picks up- Please leave your name and phone number and we will get back to you.
    2-3 days later someone calls back- I'm out of the shop or on another line. Return to start. Do not pass go. Do not collect information.

    After a week or two of this, I get through and actually talk to somebody, we get part numbers, and they no longer stock them. I swear, this happens 8 out of 10 times with me vs. Yamaha...........But, I'll keep trying.

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    Don't forget the joker g1's Avatar
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    Are they Jalco brand jacks? If so you can probably only get them from Yamaha or maybe ebay.
    JALCO
    http://music-electronics-forum.com/t27368/

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    Supporting Member The Dude's Avatar
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    Thanks "g". They don't appear to be any of those. I'll try to upload a pic later. I'm still having trouble uploading to this site, but I'll see what I can do. FWIW, I've also searched all of eBay with no luck.

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    Lifetime Member Enzo's Avatar
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    Find out when they open each day, then call them one minute after that. I do that for any company, even Peavey gets a long phone wait if you call mid-day.


    The board art appeared in the manual, you ought to be able to infer the pinout.


    OK, maybe... rectangular black plastic with clear top? Looks a little like those fender jacks but not as tall? Plastic bushing with top and botom surfaces flatted some? Metal bushing liner like many plastic jacks. 7 legs 1-4-2? Bottom of jack has numbers and slots for 9 pins, but only 7 are there?

    If so, Yamaha LX801220 probably work.

    OOOh. It says MC1602 on the individual bag, but the larger bag of several says MC1602 AND EM1400. SO that should be your part number.

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    Supporting Member The Dude's Avatar
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    Thanks Enzo! That's the one (LX801220). Got 'em on order. I'll "wing it" on the speaker jack. It's not as critical because 1) it's only a 2 pin hot/ground jack and 2) it's not a PCB mounted part. I can find a jack that will work just fine even if it's not EXACTLY the same as the original. Again, thanks much.

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  8. #8
    Lifetime Member Enzo's Avatar
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    Knowing Yamaha like I used to, I would bet my lunch money that the other jacks are incrementally related, part number wise. So something like LX801210 or LX801200 or something PROBABLY would have covered it. Not that we want to guess.

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  9. #9
    Twobie
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    Hi enjoy do you still have that schematic available cheers

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  10. #10
    Twobie
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    Hi enzo do you still have that schematic available thanks

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  11. #11
    "Thermionic Apocalypse" -JT nickb's Avatar
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    Thank you so much Nickb I really appreciate the fast response Iím also chasing the EM-1620 schematic any chance of finding that one cheers

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  13. #13
    "Thermionic Apocalypse" -JT nickb's Avatar
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    Try Yamaha. They often will give you old stuff for no charge. Failing that iI see it can be bought is you search for it. I don't have it though.

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