beogram 5500 turntable repair, gear disassembly?

32 replies
DI
Offline
Dillen
BronzeModeratorFounder
Posted October 28, 2022 at 11:27 GMT
Edited October 28, 2022 at 11:29 GMT
#1650110
The recitifier board pulls right up when you pry away the small black claw that holds it.
The regulator itself has three pins that goes into a connector. The regulator stays with the chassis.

The filter capacitor is a "soldering star" type - not a snap-in. They are known to go bad.

Also check the rectifier diodes. I've seen cases where owners fitted schottky types, - not sure why, presumably in a misunderstood attempt at improving something,
- and they are no good in this position. They typically go with a bang.

Martin
UM
Offline
ummagumma
Bronze
Posted October 28, 2022 at 20:33 GMT
#1650129
Thanks guys, much appreciated!

That makes sense with the regulator, I was wondering what the heck was going on with how it was mounted. Even peeked underneath the TT but it is mounted from the top.

 

I should probably replace all those caps anyway
UM
Offline
ummagumma
Bronze
Posted November 1, 2022 at 09:28 GMT
#1650251
Aha, I see the regulator board clip now!

 

It will be a bit before I get all the parts, meanwhile I will test the components I remove. The diodes are original. Will post an update once I make some progress.

 

Thanks again!
Beitie
Offline
Beitie
Gold
Posted November 5, 2022 at 01:24 GMT
#1650388
That solenoid can be tricky at times. Though if you don't have any power or motor movement at all, you have bigger issues to figure out.

The solenoid you have pictured reacts based on some micro switches under that PCB. The placement of that PCB and the switches are very delicate and it's not always easy to get right.

Location: Minnesota, USA

My B&O Icons:

BeoCenter-9500.png BeoCenter-9500.png
Beoplay-H95.png Beoplay-H95.png
Beomaster.png Beomaster.png
UM
Offline
ummagumma
Bronze
Posted November 6, 2022 at 10:52 GMT
Edited November 9, 2022 at 01:58 GMT
#1650429
Yes....and since it worked until I removed that bent part 1609 & reassembled the gears ( improperly? ) it highlights how important it is to make sure the gears are assembled correctly!

 

The service manual is a bit crypic regarding the orientation of the gears.
UM
Offline
ummagumma
Bronze
Posted November 9, 2022 at 01:57 GMT
#1650530
I am going to recap the 5500 CD player & 5500 amplifier too, while I'm at it.

Pretty sure the CD player has a couple of those "soldering star" electrolytic capacitors.

 

Funny, I've never heard of them. They appear to just be radial caps with a more robust mounting/base?
UM
Offline
ummagumma
Bronze
Posted November 11, 2022 at 02:15 GMT
#1650580
I can't seem to find those "star solder" caps anywhere. the 1000 uF 40v one in the 5500 TT looks like it has 3 leads?

I did find this, but it has 5 leads:

https://www.digikey.ca/en/products/detail/kemet/ALP22A102DD200/13176663

can I just use a regular 2 lead cap instead?

the 5500 power amp & 5500 CD player have them as well

( 4700 uF, 2200 uF in them )

 

thanks!

 

 

 

 
DI
Offline
Dillen
BronzeModeratorFounder
Posted November 11, 2022 at 10:59 GMT
#1650584
Soldering star capacitors have four leads. One center positive and three negative in the outer circle.

You can fit a general purpose capacitor with reasonable specs instead, just make sure to get the
polarity right and connect any negative pads that were previously connected by the original cap.

Martin

 
UM
Offline
ummagumma
Bronze
Posted November 11, 2022 at 17:45 GMT
#1650592
Nice!

I was examining the 5500 TT board & saw the - leads were all tied together, but the CD player was tougher to figure out. It almost looked like a multi cap can.

 

I will make sure to add some support, so they're not just hanging off the PCB.

 

Thanks again!
UM
Offline
ummagumma
Bronze
Posted November 13, 2022 at 19:06 GMT
Edited November 13, 2022 at 19:08 GMT
#1650626
Does anyone know if there is a good explanation of how to assemble the gears in these TT's anywhere? I didn't find the service manual very clear.

Or a method to test the mechanism before powering it up?

Thanks!

 

 

 

 
or
BeoWorld Gold Membership card
Join BeoWorld

Register to access the forums, reference material, and exclusive member benefits — including our monthly prize draw.

Become a Member

December 2026 Prize Draw

Gold Members Only

As a Gold member you're automatically entered into our exclusive prize draw — your chance to win iconic Bang & Olufsen products. A unique benefit of BeoWorld Gold membership, every draw brings a new opportunity to win something special.

View Prize Go For Gold