...regulator and we are not measuring any other voltages on the power supply output cable. Does anyone know what different voltages this supply puts out, and if so, can you provide a pinout with the ...
...output on any rail.Replaced the TOP245Y, TL431AC and the P6KE200 diode. 15 + and - rails came back, no 5v. replaced the 7805 regulator......all good.Now all I have to find is the original short which ...
Question about Mackie Music
...back up but don't hold your breath, they regularly fail taking out the output stage which in turn takes out the PSU so check the amp with a limited and robust PSU or use a variac on the mains to
...output Transformers are VERY reliable. Look for another problem... rectifier, filter caps, fuses, regulators. There is a main fuse and if it is blown, repair the unit before applying full ...
I have a Kurzweil Mark-Pro TWOi. It takes several minutes to turn on, and keeps resetting and clicking while booting up. My guess is a bad capacitor somewhere. I looked at the power board, and it ...
...test is if injecting signal on the BACK of the unit jack (power amp in) will create sound. If it won't then better exercise your warranty. The one unit I have completed repair had a bad 15 volt ...
...output is received by the same. This chip is supplied with +/- 15.5 volts UNREGULATED which is stupid! If you get a power surge, the IC will be destroyed. Myself I would put at least a shunt Zener ...
...output transistors (2sc3264) and a resistance R22, and replace them when I was doing the burn test all again ... I do not know what else to do everything seems fine but still with the same problem I ...
...Output wires are 1 black ground wire and 4 other wires. The first wire is -8V and has power but the next wire is +8V and has no power as well as the other 2 wires which are 5V and 3V respectively. ...
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