Beomaster 4400 Power Supply / Damage

11 replies
G(
Offline
grahamhood (archived2)
Bronze
Posted September 3, 2015 at 10:40 GMT
#2250544

Hello Beoworld

First time posting here although I have been following the forums for quite a while now. It all started when I inherited my dad's record collection and I bought a Beogram 1203 to listen to them on. I bought it only really for the look of it, not knowing much about B&O at all. Soon after that I developed an outright addiction to vintage B&O products. I was glad to see that it has happened to a few other people on here:)

My latest addition is an import from the US of a Beomaster 4400. It was in PERFECT condition however it got damaged in shipping and the overhanging part of the left side panel was broken off completely. The pieces of veneer seem to all match up and should go back together like a puzzle (will try attach some pics of the damage). I am going to try get it as professionally repaired as possible, however will gladly welcome any tips or advice on this as well!

My question is for anyone who might know why there is no power supply adjustment from 110v to 240v on the outside of the receiver, as there is on various other B&O receivers from around the same period. In South Africa we have 220v power, and the receiver says only AC117v / 60Hz / 310w at the power supply.

Secondly, is there any way to change the power supply internally or shall I just buy a step down transformer for the plug point? If so, can anyone advise on what kind of output I would need on a receiver with this power?

And thirdly, if by chance and in my excitement of opening the parcel had plugged it in and turned it on, would it only have blown the fuse at the back or is there a chance that any internal components could have been damaged as well?

Thanks,

Graham

 

SH
Offline
Søren Hammer
Bronze
Posted September 3, 2015 at 11:33 GMT
#2250545

Hello Graham,

There should be a voltage selector on the rear of the unit.

Otherwise, I do have a spare Beomaster 4400 mains transformer laying around if you want to have it - it can be yours for the shipping cost 🙂

DA
Offline
Davefarr
Bronze
Posted September 3, 2015 at 11:41 GMT
#2250546

Hi Graham,

ouch!  Good luck fixing that.  You may be better either making a replacement panel and re-veneering the whole unit or looking out for replacement panels which come up on eBay sometimes.

If you look at the product info (not always accurate), there seem to be 2 type numbers for the BM4400 which were made at broadly the same time.  One was purely for the US by the look of it (Type 2419) which is I suspect the version you have.  The other (Type 2417) appears to have the multi voltage.

I just found this picture of the back of a BM4400 Type 2419 which clearly does not have a voltage selector and is as described by the OP:

link

http://www.beoworld.org/prod_details.asp?pid=350

I'll leave the electronics experts to answer your 'theoretical' question on plugging it in!

Dave.

 

DA
Offline
Davefarr
Bronze
Posted September 3, 2015 at 11:50 GMT
#2250547

Søren Hammer wrote:
There should be a voltage selector on the rear of the unit.

Not for the US version Type 2419:

DI
Offline
Dillen
BronzeModeratorFounder
Posted September 3, 2015 at 12:54 GMT
#2250548

It's impossible to predict, but I'd say there's a huge risk that something (a lot!) will blow if fed double mains.
The fuse will not be the first thing.

Martin

mexking
Offline
mexking
Bronze
Posted September 3, 2015 at 14:06 GMT
#2250549

I have the same US type, you will need a step down transformer, here mine, nothing to change in there

Location: Mexico city

Retired
Printing machine technician
Restored various 1960-70 items
Rock and Roll music
Collecting Vinyl
Restored Jukebox Wurlitzer 1050
G(
Offline
grahamhood (archived2)
Bronze
Posted September 3, 2015 at 17:18 GMT
#2250550

Thanks for the responses guys, it is definitely the US type 2419.

Will sort it all out when I have some spare time and let you know how it goes.

Graham

G(
Offline
grahamhood (archived2)
Bronze
Posted September 3, 2015 at 17:20 GMT
#2250551

Hi Soren

Thanks very much for the offer!

Will it be of any use in the US type or do you think it would be easier to get a step down converter?

 

mexking
Offline
mexking
Bronze
Posted September 4, 2015 at 15:09 GMT
#2250552

Hi Graham, it wasnt an offer, it was just to show you that nothing can be changed in there. your best solution will be a step down transformer, or you search in Europe for a 220V spare transformer from a slaughtered unit, or maybe Martin (Dillen) has one

Location: Mexico city

Retired
Printing machine technician
Restored various 1960-70 items
Rock and Roll music
Collecting Vinyl
Restored Jukebox Wurlitzer 1050
L(
Offline
leeshep (archived2)
Bronze
Posted September 4, 2015 at 16:05 GMT
#2250553

I think he was replying to the other Soren :-p

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