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Posts by Nick Davison
20 total posts

13 results

Avant 32" 8433 Flyback Transformer & Caps
in BeoVision · Aug 26, 2026 12:15 GMT

Hi All Looks like I have to replace the flyback transformer on my 32"CRT. Donberg have stock of replacement parts number HR8731, but before I go down the route of replacing this has anyone experience of these replacement…

The Great Penta Renovation!
in BeoLab · Dec 1, 2025 09:55 GMT

So out of the 8 Pentas I have been working on 7 are serviceable with just 1 needing the caps replacing (as a routine but working fine). The sticky one has what I believe to have been a self induced problem. I inadvertent…

Beoenter 9300 Faults
in BeoCenter · Nov 16, 2025 15:07 GMT

I recently bought a sick 9300. It has the following problems which may or may not be attributable to a dead lithium battery. Hoping someone can help? When turned on and any input source selected the volume sets itself to…

Penta Mk3 loud pop on power up
in BeoLab · Nov 14, 2025 16:35 GMT

So the loud Pop or crack has been resolved. I substituted various assemblies to isolate the problem which was isolated to PCB 22. Diodes and resistors all checked and no faults. So identified as IC2 chip. Cost about £0.4…

Penta Mk3 loud pop on power up
in BeoLab · Oct 27, 2025 01:48 GMT

When I say pop it isn't something that can be lived with, it's more of a loud crack I guess and sounds like it will be doing some sort of damage. One of my others has a quiet pop but nothing like this and as with yours p…

Penta Mk3 loud pop on power up
in BeoLab · Oct 26, 2025 12:32 GMT

Hi All I have a problem with one of my Mk3s the I'm hoping someone can help with. With mains power on and no speaker plug connected, when I select left source on the speaker switch I get a loud Pop. It also pops as I des…

Penta 3 Crossover board adhesive.
in BeoLab · Oct 17, 2025 19:07 GMT

Yep went out and bought a glue gun. Done two sets of crossovers with it and looks like it sticks well. I have to replace the L3 coils that have glue filling the void in the middle of them so will use the glue gun for the…

What are you working on now?
in General Discussion & Questions · Oct 15, 2025 11:35 GMT

Madskp, I'll give that a go. I also note that I have an issue with the left speaker chanel output not working or very quiet so It may all be connected. After reading a few posts and s the BC is a bit old it may be plug/b…

9300 & Pentas
in BeoLab · Oct 15, 2025 11:28 GMT

Although I currently have the BC and Speakers on the same plug I will change that so I can leave the BC on standby to maintain the saved settings, although it does needs the battery changing now. I will put the Pentas on…

What are you working on now?
in General Discussion & Questions · Oct 13, 2025 17:26 GMT

I’m busy working over 6 Penta 3s and 2 Penta 2s that are all having new foams and full cap sets. Also I have been replacing some trim to keep them looking great. Bits I am in the process of:- 1. Replace the rear trim str…

9300 & Pentas
in BeoLab · Oct 13, 2025 17:07 GMT

Hi all, just looking for a straw pole on how people use their equipment. I have a BC9300 with two Penta 3s connected. (Who doesn’t love a good Penta!) Who leaves the BC and Pentas plugged into the power and in standby mo…

Penta 3 Crossover board adhesive.
in BeoLab · Sept 27, 2025 18:36 GMT

I'm in the middle of renovating my penta 3s. On the crossover boards what adhesive (brand) is a good choice to secure the new caps and the replacement mid coil that was once once filled with the stuff? Also, and I have a…

Fully wired Penta cables.
in General Discussion & Questions · Sept 20, 2025 23:25 GMT

Can anyone tell me the spec and possibly provider of the 8 core cable for Penta 3 speakers? I’m looking for a roll so I can custom build some cables. cheers