ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hello everyone,
This is my first post on this forum. Since 1 month I am the proud owner of a Beomaster 2400 and a Beogram 4004. I read a lot about these systems on this forum. I already ordered and replaced all the bulbs in the Beomaster with a bulb kit from Dillen. I looks absolutely beautiful now. It works perfectly with the Beogram.
I just tried to hook up the antenna for listening to the radio. I used a coaxial cable that was previously used for television. Because the Beomaster antenna had a female coax connection and the cable ends in a female connections I used a small male-male adapter to get the cable to fit. The other end of the cable goes in the socket in the wall (next to the TV connections).
This all seemed to work because the reception was super on al 5 FM channels. After a two or three minutes I started to smell something and saw a bit of smoke coming out of the right side at the back next to the antenna connections.
My first idea is that the Beomaster can't cope with a 'modern' tv/radio connection like this and that it can only work with the 'bunny ears' antenna or an older arial antenna on a roof.
Is this correct? Is the signal coming out of the wall (provided by my tv-cable company) to powerful? Or is there something wrong with the beomaster antenna connection?
Regards,
Ben
Hi Ben
seems really impossible that an Fm antenna connection make this event probably something such a transistor or resistor have end its life. Put a piece of wire into antenna input of Beomaster and see What happen
all the best
Marco
The cable TV wall socket must carry DC, a technique used to power aerial amplifiers and satellite dish heads (ghost PSU). Can you use a voltmeter to check that?
Jacques
What chartz said.Any DC present on the antenna leads will toast the antenna transformer inside the Beomaster.Put a fairly large capacitor, 100nF polyester type or so in series with the inner lead inside the antenna plug.
Martin
Thank you for your answers. I thought it would be something like this. In the next couple of weeks I will try the put a new capacitor in place to see if it works.
Ben.
Bezulsqy: Thank you for your answers. I thought it would be something like this. In the next couple of weeks I will try the put a new capacitor in place to see if it works. Ben.
There is no capacitor in there by default! But to cut DC from the aerial/dish you will have to solder one! Perhaps you could just do that inside the wall socket?
Now I understand. Thanks!
I am completely new to electronics :-) Soldering the bulbs in the Beomaster was my first experience of opening an electrical appliance and my first soldering experience. I am very able in following instructions so that job ended well :-)
I am going to try and find a normal antenna to plug in… Probably the easiest solution!
Thanks for all the feedback.