According to this description I have an older version than "Ver 3". I will find some time on Friday to try to find a solution. If I get to something I will update.
Thanks for all the advise.
I know its an old thread but could anybody tell me which is the Z100 & Z101 Diode on the board. I would change both of it to drive the amp in a lower voltage area.
I have ordered standard 0,5W z-diodes ( 30V , 47V). Would it work?
The resistors are already changed.
Best wishes
David
I have ordered standard 0,5W z-diodes ( 30V , 47V). Would it work?
The resistors are already changed.
Best wishes
David
The under- and over voltage protection zeners are not on the board .
see http://www.diyaudio.com/forums/clas...-irs2092-irfi4020h-200w8r-34.html#post2933914
Cheers ,
Rens
hmm no UVP😕
But everywhere in the discriptions i read that its on board...
but how can i use the amplifier with lower than 40V? The problem is that the LED on the Board is just flashing.
I have 39V from the power supply
best wishes
David
But everywhere in the discriptions i read that its on board...
but how can i use the amplifier with lower than 40V? The problem is that the LED on the Board is just flashing.
I have 39V from the power supply
best wishes
David
Must be some other problem , Amp should work fine on +/- 39 V
UVP and OVP are not on the board .
Upload some pictures .
Cheers ,
Rens
Hello all,i have the l15d pro version running at 50v with a 1.6amp fuse in each rail for testing. Does anyone know what the maximum current draw is under full load?
thanks
thanks
total voltage (peak) from one line is about 48 volts, assuming 50 volt from PS. If running a sine wave into an 8 Ohm load, that's 6 amps (48= 8*6), which is peak, which is 6/root2, = 4.24 amps, RMS. To accommodate peaks, fuses in excess of 6 amps would be prudent. Into 4 ohms, double the values (>12 amp).
hi,
I just got a pair of LJM L15D Pro boards. Hooked them up to a connexelectronic.com 300W power supply and they seem to work perfectly. They don't get hot, they are very quiet, etc.
The blue LED will blink if the output (loudspeaker) terminals are shorted. So I had to isolate them from the chassis.
So far, the sound is OK but I find it a bit lacking in the bass department. Is there a tweak to make it a bit punchier ?
Thank's
R
I just got a pair of LJM L15D Pro boards. Hooked them up to a connexelectronic.com 300W power supply and they seem to work perfectly. They don't get hot, they are very quiet, etc.
The blue LED will blink if the output (loudspeaker) terminals are shorted. So I had to isolate them from the chassis.
So far, the sound is OK but I find it a bit lacking in the bass department. Is there a tweak to make it a bit punchier ?
Thank's
R
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