Posts by artig
23 total posts23 results
Your favourite product from B&O's first 100 years?
in General Discussion & Questions · Aug 17, 2025 06:39For me the favourites will always be the ones I had a hand in creating, and of these the Beocord 9000 stands out as one of the best. It was probably one of the most advanced and best cassette decks of all time from any m…
Software for single chip computers etc. contained within products.
in BeoCenter · Jul 15, 2025 06:00The service manual is an invaluable aid in reverse engineering the requirements, and most of it could be done using that. Also there may be some information to be found at https://beomicro.wordpress.com which could be he…
Software for single chip computers etc. contained within products.
in BeoCenter · Jul 14, 2025 06:42As far as I'm aware there is no such repository, and doubt that even the B&O archive has copies of the software images. There are a couple of potential problems: The single-chip controllers are mostly mask programmed and…
Beocom 6000 shared phonebook transfer/copy
in BeoCom · May 13, 2025 06:04As an aside, the common phone book should be stored on the PSTN as well as on all the Beocoms registered to it and set to common. You should be able to scroll through them even when outside range of the PSTN. Registering…
Beocom 2 Repair
in BeoCom · Jul 26, 2024 06:26There are two aluminium, a black and a grey. All are pre-2010 so matt finish.
Beocom 2 Repair
in BeoCom · Jul 25, 2024 05:58I have four Beocom 2 handsets that have been in storage for about 20 years that could be plundered for spare parts if necessary, except for the main circuit boards since I don't know which program version is in their fla…
Beocord 9000 tape calibration never stops
in BeoCord · Feb 7, 2024 05:11Presumably you know that you can get a readout of the values the calibration has found, so you can check if they have changed or if the results are reasonable? The procedure is outlined in the service manual. With Record…
Is a £45 Beogram worth buying?
in BeoGram · Feb 3, 2024 05:06Guy wrote: Great video Steve! Regarding your comment at 3m45s that it was the only B&O radial tracker with remote control: Beogram 2400 pre-dated Beogram 2000 this by 5 years, was radial tracking and had remote control (…
Internal bluetooth receiver for transistor Beolits
in BeoLit · Aug 27, 2023 06:05I don't know if they are legal everywhere, but you can buy small, fairly cheap, BT receivers that transmit a weak FM signal with a range of only a few metres. They need a 12V supply since they are most often sold for use…
Beomaster 6000 Power-On Issue
in BeoMaster · Feb 21, 2023 21:26I've never owned a BM6000 and apart from the CPUs I don't have any parts for them. I meant if anyone who can write 3870 assembler code and wants to re-create the functionality of the original program, as you are doing wi…
Beomaster 6000 Power-On Issue
in BeoMaster · Feb 21, 2023 11:39A posting on this site describes the beginnings of the BM6000 PIC project. /forum/beogram/how-does-the-beogram-tx-compare#post-1681837 I'm hoping a full description will be published one day before too long. It did take …
Beomaster 6000 Power-On Issue
in BeoMaster · Feb 21, 2023 05:21If anyone with a faulty Beomaster 6000 CPU is interested I have two unused CPUs, with no way of checking whether they are working or not. They have never been installed, but are original production samples. They have the…
Beomaster 6000 Power-On Issue
in BeoMaster · Jan 19, 2023 05:36OK, my fault for relying on my poor memory. I don't have a BM6000 to try it on and I just remembered it as being like other products from that era which did use the 50/60Hz signal for power failure indication. It's now m…
Beomaster 6000 Power-On Issue
in BeoMaster · Jan 18, 2023 05:14quattttro wrote: What about Pin16 on the cpu (the 50/60Hz signal)? This signal comes from TR4 on the power supply board # 16. I’m not getting a square wave from the collector of TR4, but I might not be measuring correctl…
Decoding early model numbers
in General Discussion & Questions · Dec 1, 2022 05:45matador wrote: Martin, what is “Chartol”, please? I'm not Martin, but Chartol (usually spelled Chatol) could be translated as a writing desk, escritoire or secretaire. Usually with lockable compartments and a fold-down o…
Beocord 8000 breaking a cassette tape
in BeoCord · Nov 22, 2022 05:37Before breaking the shell apart I would take a pen or pencil and turn the lower reel slightly clockwise to loosen the tape and try to pull it gently out of the cassette while doing so. It may get the tape back on the ree…
Beomaster 6000 Power-On Issue
in BeoMaster · Aug 21, 2022 07:05Since there's really nothing happening on the outputs after /Reset goes high it would seem that the program code is not running at all. Sorry, I'm out of ideas for things to try.
Beomaster 6000 Power-On Issue
in BeoMaster · Aug 20, 2022 06:19Did you have a crystal oscillator on pins 1 and 2? The /Reset signal shouldn't really be pulled high until after the 5V and XO are stable. It looks as if Reset goes high just before 5V, but perhaps that is deceptive. Sin…
Beomaster 6000 Power-On Issue
in BeoMaster · Aug 18, 2022 08:31Setting up all the I/O pins would be one of the first things done in the program after the oscillator has started and /RESET has gone high. Pin 16 input is used only for the clock and for checking whether the mains power…
Beomaster 6000 Power-On Issue
in BeoMaster · Aug 17, 2022 06:07Several products from that time will go into standby or not start up if there is no signal from the 50/60Hz mains frequency. It should be on pin 16 of the microprocessor.