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Latest post 01-29-2012 4:35 AM by chartz. 60 replies.
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  • 12-31-2011 4:03 PM In reply to

    • chartz
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Just as I figured...

    Join the broken bits with cyano, then sand broken tracks and make solder bridges or better still, cut small pieces of copper wire to make the bridges more reliable. I'd also glue plastic pieces on each side of the PCB to render it more rigid.

    Good luck!

    Jacques

  • 12-31-2011 4:18 PM In reply to

    • Rich
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    chartz:

    Just as I figured...

    Join the broken bits with cyano, then sand broken tracks and make solder bridges or better still, cut small pieces of copper wire to make the bridges more reliable. I'd also glue plastic pieces on each side of the PCB to render it more rigid.

    Good luck!

    Thanks, Jacques.  Will give it a go tomorrow or Monday.

    Current primary listening:  SMMC20EN -> BG4002 -> BM4000 -> Beovox M70

     

  • 12-31-2011 4:23 PM In reply to

    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Rich,

    I have a spares BC5000 and I owe you a package!

    Want my board?

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  • 12-31-2011 4:52 PM In reply to

    • Rich
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    burantek:

    Rich,

    I have a spares BC5000 and I owe you a package!

    Want my board?

    Absolutely, yes, but only if you won't miss it.

    Current primary listening:  SMMC20EN -> BG4002 -> BM4000 -> Beovox M70

     

  • 12-31-2011 5:45 PM In reply to

    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    No problem.

    I never intended (wasn't crazy enough) to mechanically restore this one. I bought it for the shell.

    I'll take a peak tonight over some red.

    Jacques, would you like the MC1437P?

    Anybody/anything else?

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  • 12-31-2011 6:03 PM In reply to

    • chartz
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    burantek:

    Jacques, would you like the MC1437P?

    Anybody/anything else?

    Oh yes please!

    A Happy New Year!

     

    Jacques

  • 12-31-2011 7:38 PM In reply to

    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Rich/Jacques,

    What a piece of machinery!

    I have extracted both of your respective boards.

    I don't want to put any heat on the MC, so I will ship the complete board.

    With the holidays, the earliest shipping would likely be Tuesday.

    Unless your addresses have changed since our last contact, I will ship to the addresses I have in the rolodex.

    Let me know otherwise.

    ...and Happy New Year to you as well!

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  • 12-31-2011 9:16 PM In reply to

    • Rich
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Thanks, Jeff.  Whenever you can get the board out is great!  Same address.

    Survived the ice sculptures and dinner out with the kids...now it's time for the serious drinking!  Drinks

    Happy New Year!

    Current primary listening:  SMMC20EN -> BG4002 -> BM4000 -> Beovox M70

     

  • 01-01-2012 2:56 AM In reply to

    • chartz
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Thank you Jeff! Same address here as well! But I think you could safely unsolder it! Its failure upon my machine was in fact due to a (factory!) short between two components, which in the long run made the chip decide that enough is enough!

    Now I wonder how we will align everything correctly. We don't have the special tools (nobody on the planet does  I guess) and we will need alignment tapes to do it... It is not a Beocord 9000 with its auto-tests!

    Best wishes for 2012!

    Jacques

  • 01-01-2012 9:56 AM In reply to

    • chartz
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Now working! No tape chewing, just beautiful music. It is incredibly fast—and safe—to rewind!

    Jacques

  • 01-01-2012 11:06 AM In reply to

    • Rich
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Congratulations!  Good luck putting it back together....

    Current primary listening:  SMMC20EN -> BG4002 -> BM4000 -> Beovox M70

     

  • 01-01-2012 11:14 AM In reply to

    • chartz
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Rich:

    Congratulations!  Good luck putting it back together....

    Thanks, but I still have a thing or two left to do: replace all the red ROE caps and the oxydised trimmers on the PPM board —not that they measure badly, but I hate it when they look like that!

    Oh, and replace the dual op-amp! I can listen to it because the phones amp takes its signal before the final MC amp...

    Maybe also replace the PSU reservoir caps, which is cheap anyway.

     

    Jacques

  • 01-01-2012 11:24 AM In reply to

    • Rich
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Man, you are WAY more motivated than I am.

    I will likely do the same - some day - but it won't be for awhile.

    Current primary listening:  SMMC20EN -> BG4002 -> BM4000 -> Beovox M70

     

  • 01-01-2012 11:57 AM In reply to

    • chartz
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    I want to be able to write:

    SMMC20EN --> Beogram 4000 --> Beomaster 4400 --> Perspective MC120-2 !!

                        or Beocord   5000 -->

    That's why! I've spent countless hours on the Beogram and Beomaster (ask my other half...) and I want this to work (no pun on the marriage, that works too!) Lightning Laughing

    I've tried lots of different tapes, old and new, pre-recordeds, with the same success. Who said this Beocord chews tapes?

    And I don't know about your head (no, the Beocord's!) but mine looks unused. Not so the spool motor, which Jeff might do something about, hopefully. There's one on ebay at the moment in UK, I might bid for it. It doesn't look too good though.

    Jacques

  • 01-01-2012 2:04 PM In reply to

    • Rich
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Now you're just showing off!  Wink

    Current primary listening:  SMMC20EN -> BG4002 -> BM4000 -> Beovox M70

     

  • 01-02-2012 4:56 AM In reply to

    • chartz
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Can you please confirm that on your deck the head is not at right angles to the cassette like mine?

    Jacques

  • 01-02-2012 1:26 PM In reply to

    • Rich
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Looks the same.

    I glued my broken PCB last night, and this morning I was able to fix all but 3 of the traces with solder.  I tried to use wire on the other 3 without taking the timer off and unscrewing the board, but I wan't happy with the results.  I took the wire out and quit.  I'll wait to work on my deck again until after I receive the board from Jeff.

     


    Current primary listening:  SMMC20EN -> BG4002 -> BM4000 -> Beovox M70

     

  • 01-02-2012 1:34 PM In reply to

    • Rich
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    jrantala:

    Oh yes, the timer belt: I left only small opening between the machine and keyboard (i.e. almost closed the keyboard down) and then used my wife's crochet hooks to get the belt in place.

    They are actually very good tools with all belts, tuning wires in old radios etc., the crochet hooks!

    - Jari

    By the way, while I was at Lowes getting superglue and a few other other items, I discovered Kobalt makes a set of tools that includes a straight pick, 45 degree, 90 degree, and a hook.

     


    Current primary listening:  SMMC20EN -> BG4002 -> BM4000 -> Beovox M70

     

  • 01-02-2012 1:50 PM In reply to

    • chartz
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Well at least you tried! That one wasn't an easy one anyway.

    Thanks for the picture. I thought the alignment was odd (well, it is according to Philips standards) but I remember that my Beocord 9000 has the same kind of head tilt. By the way, the cassettes I did on the Beocord 9000 replay perfectly on this deck, piano notes being rock-steady, with plenty of treble with dolby on. Nakamichi ones don't. I'll never understand why tapes recorded on Naks are always out of azimuth when played on any other deck I have...

     

    Rich:
    By the way, while I was at Lowes getting superglue and a few other other items, I discovered Kobalt makes a set of tools that includes a straight pick, 45 degree, 90 degree, and a hook.

    Nice find! As far as I'm concerned, I'll use one of the good lady wife's crochets!

    I see that your trimmers look as horrid as mine...

     

    By the way, where does the PC1 to PC2 strand go?

    Jacques

  • 01-02-2012 1:59 PM In reply to

    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    On my machine (which is a 4705), the recording head is about the same as You guys, and the playback head is even more tilted forward- should have taken a picture, but missed that, I'm afraid.

    - Jari

  • 01-02-2012 2:01 PM In reply to

    • chartz
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Thanks for confirming Jari! Three misaligned decks? Nah...

    Jacques

  • 01-02-2012 2:29 PM In reply to

    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    The service manual for the Beocord 5000 (4705, 4715) calls out using several B&O alignment tools.  Has anyone ever come across those?  It would be handy to reproduce them for future servicing.  Without the alignment tools are you just eyeballing the adjustments and then testing the results with a cassette?

    I have one of these decks I bought new back around 1977 or 1978.  It was in a box out in a shed for years until last year.  I brought it in and took it apart to fully clean everything but got side tracked.  I didn't know all of the history behind this deck until watching this post.  This will motivate me to restore mine....thanks.

  • 01-04-2012 2:08 PM In reply to

    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Rich/Jacques,

    24 hour delay, but you both have packages en route!

    Rich, your ETA is Friday. Jacques, I have no Clouseau!

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  • 01-04-2012 2:41 PM In reply to

    • chartz
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Thanks Jeff!

    To France, usually 6 or 7 working days. 

    Very nice indeed! 

    Jacques

  • 01-07-2012 3:28 AM In reply to

    • chartz
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    Re: Changing belts on Beocord 5000 (4705, 4715) -part 2

    Interesting link to a Tim Jarman post about what he did to Peter's Beocord:

    http://www.vintage-radio.net/forum/showthread.php?t=48128

    No trouble for me so far, we'll see what happens in the long run!

     

    Jacques

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