Bang & Olufsen Beogram CD 5500 – Reading issue only on the first tracks

[florent maire]

Hi everyone,

I recently acquired a Beogram CD 5500 player. After a few repairs to the DIN cable, which did not appear to be original (short circuit on the data wire), I also replaced infamous cap C2103. The player “works,” except for reading issues:

The CD starts playing normally without any rubbing noise, the number of tracks is displayed, but the first tracks are choppy and skipping a lot. The tracking seems to try to reposition itself a lot. However, as soon as the middle of the CD is reached, there are no more reading issues.

What are the different things to test, and especially how to check:

• The press plate seems unlikely: it doesn’t rub against anything but seems to vibrate a lot; even when I manually re-center it to reduce vibrations,  problem persists Is the motor not spinning fast enough?
• Is the optical block not following the movement well in the center of the CD?
• The CDM block’s suspension? Where can I find replacements, or did anyone try to 3D print them?
• The motor’s suspension?
• Other ideas ?

 

Thank you for your insights, and sorry for the automatic translation which may look a bit awkaward 🙂

[Dillen]

What brand and type of capacitor did you fit for C2103?
Did you do any adjustments? – If not DON’T do any.

Drive supports here.
No, you cannot 3D-print these. There are more to them than meets the eye.

Martin

• This reply was modified 2 days, 3 hours ago by Dillen.

[florent maire]

Hi thanks, I’ll look into the replacement supports. I may try some 3D printed or home made solution as an experiment and will keep everybody posted.

Regarding the cap C2103, I replaced with a random chinese one with same values I had laying around, I know there is a lot of discussion especially in a French forum about using an original one but thought it was a pedantic discussion … I kept the original and will refit it if ESR and capacitance values are still spot on.

 

Edit : Cap c2103 it was tested : 37µF with ESR 6 Ohm so I guess it is toasted !

• This reply was modified 6 hours, 30 minutes ago by florent maire.

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