Converting DVD1 mk1 (type 4620) to region free/ multi-region

15 replies

Duncan/Fritz

If you can find a working KeyMaster, that will work also.
Is was a private company in Struer that made this KeyMaster. Think the rest.
The B&O made the workaround with BEO4, due to the KeyMaster could be a warrenty issue.

 

 

HI Fritz,

 

Understood!

I have ordered a couple of old Philips units with the same ASD 1 transport/laser/monoboard ( Philips DVD 612 ) and an old OneForAll 6 (urc7652) universal remote control. With this combination I should be able to perform the multiregion programming of the 'monoboard' whilst it is still in the Philips player then transfer it to the relevant B&O DVD1 or Avant DVD unit.

It is possible that the monoboard/transport from these players is also compatible with the B&O units.

I will post all the results of this experiment when completed.

 

Cheers,

Duncan.

Location: belgium

Duncan/Fritz

Pls note that DVD MK I, the unit is software controlled from the PWR supply.
The keyMaster then informs the software that the region code ia OK and bypassing the "burnedin" region code on the ASM 1 board. The BEO4 software workaround does the same, by instructing the controller to accept all return DVD regions Codes from the ASM1 module.
.

Hi Again,

My experience is that when I take only the 'monoboard' that is attached directly beneath the transport/laser mech. from a machine that has already been converted to multiregion by the dealer with no extra circuit fitted, then fit it to another DVD1 or indeed my Avant DVD that was not multiregion beforehand, those units become multiregion from then on with no other modifications or procedures, thus proving to me that the multiregion coding is stored permanently and exclusively on that 'monoboard' itself.

This I discoverd by accident when I had to install one of these boards from a DVD1 (dealer converted to multiregion) into my Avant DVD because the internal DVD had stopped working (no power to laser). With DVD1 board fitted, the laser power was restored and all DVD's could be read including all regions whereas beforehand my Avant DVD would only play region 2 DVD's. I have since performed this a few times to restore failing B&O DVD players as previously stated.

Having said all that, it does not mean that there are not alternative ways to achieve the same result. So I value all of the info. that you have posted for increasing the knowledge available to me and others.

Cheers,

Duncan.

Location: belgium

For info - here's a photo of a fitted Keymaster.  It's a bit fuzzy as it's taken from the fitting instruction pdf.  These describe the board as the MPEG board.

Location: Warwickshire, UK

My B&O Icons:

BeoCenter-9500.png BeoCenter-9500.png
Beoremote-Beo4.png Beoremote-Beo4.png
Beovision-10.png Beovision-10.png
Beotime.png Beotime.png
Beosound.png Beosound.png
Beosound-Explore.png Beosound-Explore.png
Beosound-Essence.png Beosound-Essence.png
Beoplay-P2.png Beoplay-P2.png
Beoplay-M3.png Beoplay-M3.png
Beoplay-H4.png Beoplay-H4.png
Beoplay-H3.png Beoplay-H3.png
Beoplay-Form-2i.png Beoplay-Form-2i.png
Beoplay-Earset.png Beoplay-Earset.png
Beoplay-A2.png Beoplay-A2.png
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.