argenta Posted April 1 Posted April 1 Hello, I have this above amplifier which powers on, but gives no sound. I checked the obvious, speaker connections, input connections headphone jack. This too has no sound. Checked dc offset, and its around 64mV. Using the service manual, performed an EEPROM test, which returned normal. Has anyone had the same issue, and if so how did you resolve it?
bob_m_54 Posted April 2 Posted April 2 As you do audio repairs, have you done basic signal checks with your scope? Signal input to amplifier section, signal out of amplifier section, signal either side of the protection relay and signal in and out of the speaker/headphone selection switch?
bob_m_54 Posted April 14 Posted April 14 On 01/04/2025 at 7:48 PM, argenta said: Hello, I have this above amplifier which powers on, but gives no sound. I checked the obvious, speaker connections, input connections headphone jack. This too has no sound. Checked dc offset, and its around 64mV. Using the service manual, performed an EEPROM test, which returned normal. Has anyone had the same issue, and if so how did you resolve it? So, what's the news with the amplifier? Fixed yet? and what was the culprit?
Recommended Posts