GEEK .... ;)
sooo ... There again NEN post from me ... after I followed the thread of bassi in the DIY community.de have, I have noticed amplifier. It is shot at while NEN Nordmende PA 1100, which I have here: click ebay
From the series gives each NEN Receiver "Re", NEN amplifier "PA", as well as tuner and tape deck, etc. ... the 1100 is to performance. Since there are 1050, 1100 and 1200 or even 1400, from 25 to 50 or 75 W or so ... More on this later. Since the design
me blow your mind, I have before my already bad for me Kenwood 5.1 Receiver sale and to instead take 3 Nordmende stereo parts.
The amplifiers have but because of their age (70, 80) or old Din inputs and outputs. These need an adapter if you only have to be rebuilt.
The outputs are simple, the large rectangular is ground and the little round the signal. (Minus = minus = shaped mass (black), R and R = ot)
All I did was rebuilt on the cheap binding posts from Ebay. € 10 or so for 8 terminals with 2 terminals.
The inputs look it's best to back on the board. Middle ground, one on the right is the right channel, 2 right, the left channel, left and right and left recording. is also everything in wiki. The I've then converted to RCA by Conrad 50cent or so the piece.
The old inputs and outputs I leave as they are, have just picked up the tensions and the new jacks wired with it.
I'm now a 1100 bought a 1050s amp and a 1050s receiver . there is unfortunately a dead channel
the 1100s I've already rebuilt ready funzt also fine just I have to replace or the backlight. From
sounded forth properly and adequately on the performance COMPLETELY. If I can trust the output of the amplifier is already playing the hands in 1 to 3 watt ... I test tomorrow even if the neighbors are awake.
The 1050s Receiver Unfortunately NEN-smoking unit, and must be completely cleaned so that only comes into my room.
I will also repair other important channel that can already nciht be too heavy. On occasion I
screw it apart completely and test capacitors and transistors by ne description of the problem:
of a channel-funzt properly. the others are very loud cracking noise NEN, NEN rather fast on its own, with very weak signal, perhaps in the background. However, completely independent of any potistellung, and each input.
the same problem once had a lag in the hifi forum, there will ne the DC voltage at the output since a elko was broken and the voltage for the transistor so somehow came directly to the output. However, one has to solve the problems after the never got back in so no one knows whether that was the solution now.
and here are some pictures of the conversion
1: 1100 open
2: tail on rca solder
3: beautiful everywhere shrink tube over it
4: and cable now there at the right contacts of dinausgänge
picture 5: the terminals of the output.
then I've almost finished the 1100 pa taken apart again, the RCA jack properly fastened (fig. 5) and again purified final.
means I'm me "tuner and contact spray 600 of conrad concerned (fig. 1), from chemical contact. costs so 7 € the bottle, but maybe had to stop her. then spray it all pots and a button. evaporated by itself and is not as aggressive as contact 61 or contact 60th .. because, according to the pots hifi-forum after a few months "crumble" ... t6 Oszillin of empohlen is teslanol also been several times, but that does not exist in Conrad.
the backlight I've also replaced. MIRS've just made me and spare bulbs purchased from Conrad. 6V, 50mA is important. 60 or 70mA would go well. gabs in a 5 pack for 1.50 €
turn soldered funzt.
times I test today in the dark ...
solve this, simply unscrew the front, buttons and pull the pots just ran it already is. I've then cleaned with soap and toothbrush and the front with glass cleaner (tip)
Here's a photo where I have the voltages for the tap output:
So on Thursday I got the smoky re 1050s - the receiver with only one channel - completely disassembled and cleaned. it was the ne work. is actually far from the current value it has taken. I should have thrown away the better part, instead I would have worked NEN few hours and then I would have bought another NEN. All I do not again ...
up to the board itself is now all clean, I just hope I get that back together somehow. was much more complicated than the pure amp because it has virtually NEN still full with the tuner device.
the back is made from sheet metal and not plastic, so I had to let me come up with something new. from ner CD case and some cardboard I then din outputs on terminals upgraded and now at home with my parents drilled the holes for the RCA jacks. harder than you think .....
the images are versüfft a) the ground, do not know if you recognize that.
and then the connections
the flickr album and the post I will of course update
so there ne updated:
the 1050s receiver output stage is now for the subwoofer including radio for all become. to have the "tape recording" function also soldered to 2 RCA (stereo, one hears the comparison to mono), pinout can be found in wiki.
today I'm still at the 1050 amplifier binding posts and RCA, the retrofitted.
funzt now everything is like, now I have to rewire everything properly and I only NEN mixer 6 channel ne xD get rubbish.
is an input used for each stereo where I just share the stereo signal from the mixer also broken to 3 (self-built cable, but I'll soon be time again) and the other input jack for 5.1 which comes directly from the PC.
