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DAVALOS

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Everything posted by DAVALOS

  1. Hi everyone, I still need a bit of help help to fix my amp. The green circled resistor show 1.87 kOhm instead of 3.2 kOhm. Should it be the cause of my failure ? I will be thankfull of anyone could help me to repair it. Thanks guys
  2. Hi everyone, @ngen33r I did the full replacement of all capacitors on the PCB below (old picture) on my R115SW, also replaced the transistor. No change at all, green light ON, still no sound, completely quiet. Even when I plug or unplug the RCA cinch cable, no noise at all from the speaker. The speaker is good I tested it. You talked about the PWM IC that may have failed. Do you have more information ? Where is this PWM IC located on the board ? Thanks !
  3. Hi @ngen33r, Thanks for this blog and for your science. I'm Martin from France and I will appreciate a bit of your help with my R115SW amp to try to save him. I bought it from second hand, replaced the famous burned resistor and the 3 capacitors arround. That worked for arround 50 hours before a few crackes sounds appeared sometimes. Now I have no sound at all. The front light is green, and the speaker is good. Do you know from where I should start ? When you said "recap", are you talking about replacing all PCB capacitors ? I'm not an electronic but a mechanic and I only have a multimeter tester. But I will be happy to learn more about it ! Martin
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