Beomaster 1900 parts

19 replies

My unit is only delivering sound to one speaker. I have been advised by a B & O tech service rep that the part "balance control" is no longer available and the unit cannot be repaired w/o this part. Does anybody have any ideas or can your unused Beomaster 1900 be canabalized to provide the part?

I may have a spare 1900 available. Where are you located?

Hi,

Did the rep actually inspect your Beomaster 1900?

If not, most likely the BM1900 needs to be recapped. Much has been written on the 1900 in this forum. Do a search.

It is rare for the balance controls to go.

Some B&O service centers will not touch the 1900 because it is a lot of work. They just tell customers that due to parts shortage the unit can not be repaired, but this is not entirely true. Most of the parts are off the shelf and those that are not don't really go.

Derek

 

 

For slider poti repair check here have fun

Location: Mexico city

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Hi Derek,

Thanks for the quick reply. Yes, my technician did a thurough analysis. I also followed up with the B&O office in San Francisco that confirmed that the 35 year old part (balance control) is no longer available, so I am left with finding the part from someone else unit I guess. I will discuss the "recapping" you referred to once I am able to find the balance control.

Thanks,

 

Len

I am in Walnut Creek but would be happy to travel to find access the part that I need.

Regards,

Len

@auric I would personally say the opposite - very common for this style of pot to fail causing channel loss, and is fully repairable!

Step1 wrote:

@auric I would personally say the opposite - very common for this style of pot to fail causing channel loss, and is fully repairable!

With a little patiense and care the sliders are normaly repairable, I did it on my BM 2400 and my BM 900.

 

Location: Mexico city

Retired
Printing machine technician
Restored various 1960-70 items
Rock and Roll music
Collecting Vinyl
Restored Jukebox Wurlitzer 1050

Hi Len, if your slider is not repairable I have one that I can remove from a BM2400. I think it should be the same as is used in the BM1900.

John

Hi Len:

The balance control generally does not go. And the reason is they are seldom used. Most users set them once and forget them.

So unless he's pulled the tone control board out and verified that pot is bad... I would suspect something else such as the caps are the culprit.

Recapping would fix many problems in that unit as they are unreliable now at this age.

Derek

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