Dillen
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It’s not uncommon to find spare cartridges, or parts thereof, inside Beograms.
Same goes for center pucks, stylus guards and needle brushes.
I have also found lots of coins, keys, jewelry, LEGO bricks etc.
Under the dust cover seems to be a “safe” place to store small items.
When the Beogram is later moved, the things slide around and fall into the innards.In the larger 1930s to 1960s valve-based radios you could, and still can, sometimes find savings and love letters.
These radios were often fairly large cabinets with room to spare, – a good and safe place to keep secrets from the wife, as she was not likely to ever go in there.Here batteries in a Beogram 5500, arrived here for repairs because the carriage was blocked:
Close, but no cigar.
Martin
You can see it here:
https://beolover.blogspot.com/2020/03/beomaster-4400-type-2419-investigating.htmlHalf way down the page.
Martin
Lay the large black hinge bracket (the rear vertical plate) flat on the table with its backside down. Put it on a thin piece of cloth or similar to prevent scratches and scuff marks.
Place the three small shiny friction plates in place in the hinge bracket, so that they sit aligned with where the three holders will be (photo).
From little marks they have left, you can usually see where they sat previously, and you can glue them in if you find them difficult to control.Put the dustcover in place in the bracket, also lying flat on the table (in what would correspond to fully open position if upright) and fit the spring to the hinge bracket at the center with a holder, a screw and a washer. Don’t mind the springs ends at this point – just let them flap around as they please until the center holder has been fitted.
The spring has small round ends, that needs to run in the grooves at the ends of the dustcover, so make sure the spring is the right way up, or it will run with the sharp pointed ends in the groove and wear the grooves out in no time.Then grab one end of the spring with pliers, twist it to upright position and set the springs length down in the groove in the hinge plate (some hinge plates have small tags it needs to go around and between) and set it into the groove in the dustcover.
Often the spring will be able to sit by itself like this.
Put a black plastic holder in place, hold it with a finger or two while you lift up the whole assy and mount the screw and washer from the other side. Alternatively, keep it flat and slide it out over the edge of a table, just enough to fit the screw and washer from below.
Same job at the other end.
Takes a little practice but it’s a 2-minute job when you know how.
The above instructions for assembly of the dust cover, spring etc. is valid for the following
Bang & Olufsen models:Beogram 1100
Beogram 1102
Beogram 1500 (Type 57xx only)
Beogram 1600
Beogram 1602
Beogram 1700
Beogram 1900
Beogram 1902
Beogram 2200
Beogram 2202
Beogram 2400
Beogram 2402
Beogram 2404
Beogram 3400
Beogram 3404
Beogram 6000 (Type 57xx only)
Beogram RXThe square holders (friction brackets) are known to break.
New parts can be found here.Martin
The motor runs all the time, when the Beocord is out of standby.
Martin
Could be the safety circuit kicking in. It kicks in if the motor is loaded abnormally.
This can happen, if something has seized or running rough in the mech. or if the belts are not correct (too thick or too tight).
– Ebay belts?Martin
That depends on the territory version, as some have polarized mains plugs and capacitive
decoupling to chassis in accordance with local regulations.If your mains plug can be plugged into the wall outlet any side up, it’s safe to swap the leads.
If you have a three-prong mains plug that cannot be reversed, or your mains plug for
some other reason can only be plugged in one way, you should keep the mains leads in their original positions.Martin
In test-mode press 7 to delete RAM settings and revert to defaults.
Service manual page 7-2 and 7-3 describes it.Martin
Does both tape reels rotate during the few seconds when the tape is playing?
Martin
The interesting video is the one where you (should be able to) see the belt running its path.
“when I play without a record it only spins for a couple of seconds.”
That’s normal. It won’t play without a record but needs to spin the platter to check for one.Martin
For the white leads going to the transformer it doesn’t matter which one sits left or right.
Martin
The interesting video is the bad one. I simply can’t see if the belt scrapes on something
– or the motor pulley, it can also scrape on the motors metal bracket (bad motor mounts).Martin
The scraping sound could come from the belt rubbing on something.
If you run the deck without the platter, the belt could run on the subplatter flange.Or it could be from the record sensing mech.
Have you tried with a record on the platter?Martin
The three locks must be rotated a little using a wide-bladed screwdriver, enough to allow
the subplatter to pass.
They will usually move in “loud chunks”.The belt will come off, and you may have to take off the black plastic surround to get at the
motor pulley to put it back (renew it and the motor mounts while in there).Martin
The “skeleton” sub-platter can be lifted off.
That would ease inspection.Martin
I looked through my notes, and I don’t have the measurements anylonger, but I
do remember my surprise experiencing the huge difference from foam to rubber, and
I also remember that the driver that was restored with foam was closer to the
(same) driver with original, old but intact surround than ones that were restored with rubber.Another thing is, that the glue often supplied with new rubber surrounds usually won’t hold for very long.
It just doesn’t grip very well and, even after several weeks/months, you can often peel
the surrounds off again completely intact with no remains of glue sticking to them.
Most rubber surrounds are rubbish when it comes to finding a suitable glue (read: that is commercially available and not toxic).Martin
Does the relay make an audible click when the Beomaster goes in and out of standby?
Martin
