Posts by Homersaurus
44 results
Penta Mk3 loud pop on power up
in BeoLab · Nov 17, 2025 20:07Somewhat late, but there a detailed post on the old forum which echoes and adds to this useful post. See /forum/general-discussion-and-questions/penta-pop
SOLVED !! beolab penta MK2 display questions
in BeoLab · Aug 21, 2025 20:21The LDR is on the schematic for the board; 23 and 24 cover the two boards in the display.
SOLVED !! beolab penta MK2 display questions
in BeoLab · Aug 21, 2025 20:13That's the LDR on the right by the multi-coloured connector wire.
SOLVED !! beolab penta MK2 display questions
in BeoLab · Aug 21, 2025 20:12With regard to the intensity, there is a preset trimmer that adjusts the "angle of viewing" so it changes the intensity not by directly increasing or decreasing the brightness but by altering the LCD with respect to the …
adjusting the potentiometer
in General Discussion & Questions · Jun 18, 2025 20:19There are tape calibration tapes/cassettes available, for example on eBay, which generate a tone of known frequency; with a (sound) spectrum analyser app on a phone then you can adjust the motor to achieve the correct sp…
BeolabPenta MK2 standby issues
in BeoLab · Nov 8, 2024 18:09If the problem becomes persistent and on all sources, then you may have a problem with the PCB 2 Control board in the Penta. Specifically a transistor BC 337-40; it switches the Penta on and off dependent on an incoming …
Connecting Beomaster 5500 with Beolab 6002s
in BeoMaster · Sept 3, 2024 22:33I would speak to Steve at Sounds Heavenly; he is very helpful regarding all sorts of connection cables. He can be contacted on this site or on the Sounds Heavenly website where cables for a variety of brands, including B…
BeoMaster 5500 3-Pin Speaker Connector
in BeoMaster · Sept 3, 2024 22:22Both sets of sockets will accept standard 2 pin DIN plugs to allow non-B&O (or) B&O speakers to be connected, as you require. The 4 pin sockets carry the 2 pin loudspeaker signal (as in the 2 pin DIN plug) plus the extra…
Penta unusual loud noises. Like loud Scratching
in BeoLab · Feb 20, 2024 20:09An interesting cause of the fault though, which is very useful to know. Switch cleaner/lubricant use as preventative maintenance might well be worth doing on the (pair of) Penta control board(s).
Penta unusual loud noises. Like loud Scratching
in BeoLab · Feb 20, 2024 19:38Would contact switch cleaner sprayed into the switches (when the control board is out of the Penta) be sufficient without resorting to physically dismantling the switches ? I'd be interested to know the level of corrosio…
BM 5500 and Penta's
in BeoMaster · Feb 21, 2023 11:35The BM5500 can drive two sets of speakers (actually more) from the two pairs of speaker outlets. Both outlets (pairs) will take the 2 pin DIN plugs to drive two pairs of passive speakers or two pairs of Beolab Penta or b…
Beovox Pentas
in For Sale · Jan 16, 2023 20:07Here is a refurbishment service on eBay: https://www.ebay.co.uk/itm/295320288254?hash=item44c275fbfe:g:isQAAOSwfzJeQIWC I have not used it myself, but you can read the feedback for the specific work you require.
Penta mk III does not power off
in BeoLab · Jan 13, 2023 09:36I've had this with Penta II, 6622, but it's the same issue for 2s and 3s. See the archive forum at: /forum/general-discussion-and-questions/beolab-penta-light-stays-green#post-2054426 /forum/general-discussion-and-questi…
6500 system + Beovox Pentas
in For Sale · Nov 8, 2022 13:34Good decision. When you get your Beovox Pentas refoamed, I am sure you will appreciate the sound from the system.
Beovox Pentas
in BeoVox · Nov 3, 2022 23:40If it is just the refoam of the mid-range units, then it is a straightforward job that you could do yourself. I'd rate it as "easy" as there's no soldering involved just the need to be methodical and to label the wires a…
State of MMC4 Needle
in Cartridge · Jul 22, 2022 21:28Aside from playing a record, you have the alternative of sending the MMC4 away; some of the companies that refurbish B&O cartridges will also provide an examination report. After a report, you can decide to refurbish or …
LC1 Schematic and repair
in Other · May 26, 2022 20:37Excellent work in providing the schematic. I've had to repair an LC1 after it stopped working by replacing the BTA06-600T. Whilst it now functions, the maximum brightness is now limited so the schematic will be very usef…
MCP 5500 Micro switch
in Imported Content (Unmapped) · Jan 7, 2022 16:48I'm not sure there is a microswitch for the volume dial; I thought there was a circular wheel with black and white markings and an optical reader for the wheel - i.e. no mechanical connection or potentiometer. The opto r…
Cartridges
in General Discussion & Questions · Dec 24, 2021 10:16You might also consider refurbishing your existing cartridge. You can get the cartridge examined and then decide whether to replace with a, say, Soundsmith cartridge, refurbish it to the same specification or to refurbis…
Is it possible to change the connector for the internal speakers of Beomaster 900K?
in Imported Content (Unmapped) · Sept 4, 2021 21:04Well, those look like plastic rivets from a distance, Possibly metal, so the likely solution in either case is to drill them out using a small eg. 1mm drill until the body of the rivet has been removed. A DIN chassis soc…