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
HI to all,
I know that, usually, people wants to make the opposite conversion, but I have a beogram 4002, Type 5513 that I never used since the DIN was converted to RCA long ago and the other receiver I have is a beomaster 2400... (and I didn't wanted the tons of adapters that situation would have required..)
It's been a tedious task so I thought I would share my experience, in case somebody else would be in the same situation.
When I searched on the web, I saw few exemples of what I needed to make the repair, however, on other B&O models... most of them showed the left out being a blue wire (pin 3) and the right out a red one (pin 5)...That's what I did.... No sound at all! However, A good look at the proper manual (Type 5514-5524) rectified the thing. This is the pinout configuration:
Pin 1 and 4 are not usually used. These are the extra connections for the optional CD4 decoder. Each pinouts goes to P9 on 6 pins, that are numbered 1-6, from left to right:
And this is the actual configuration of my beogram:
So I have, from 1 to 6, yellow, blue, orange, red, common ground (bronze wire wrapping) and ground chassis (silver wire wrapping). By doing the math with the schematics above, I get this actual DIN pinout configuration (Which is completely the opposite of what I thought):
Yellow is the actual front left channel and orange the right one..
I don't know if the color configuration is always the same on these model of 4002 but the lesson is: Always look at the schematics to be sure ..
It worked. Fine, but then I had some weird distortion in both outputs. I was being nervous again. My first thought was that I messed with the continuity of some wires. Everything was fine. Then I thought about the cartridge: a MMC 10E that I salvaged from an old BG 1600. Maybe it was bad. I tested with the MMC 20CL I have on my 8000. Sound was way better. So the other cartridge was probably bad. Then I thought about the tracking. Searching on this wonderful site, I've found this: 1,5 gram for the MMC 10E.
At last! I'm not just looking at this system now..
Guillaume
Well done Guillaume, and very useful information!
Jacques
I just used your nice detailed post to replace a DIN plug on my 4002. Worked like a charm - thanks!
This was a HUGH help, Thank you. my Old beogram 4004 TT works great..!