Yamaha DXR15 Powered Speaker Fault LED On

[MobileXT]

Another updates: I install the parts I get sound but another problem. I don't have high I test the tweeter is good.

[CapLeaker]

check if there is audio going to the TDA8922. Maybe the mute is on somehow, no VSS, no oscillator, something open in the output, etc.

[R_J]

I have a shorted on the IC713 and IC715 both on PIN 6 & 7 so I ordered the parts from Mouser NJM2068M-D hopefully will get here by next week. Once I get the parts I will update you guys.

IC713 has a 0Ω resistor (R897) across pins 6 & 7, IC 715 pin 6&7 are connected together (section of ic not used)

[MobileXT]

check if there is audio going to the TDA8922. Maybe the mute is on somehow, no VSS, no oscillator, something open in the output, etc.

That's what I thought it could be mute somewhere so I am looking at Q256 and Q257 as well as the IC724.I am still waiting for my oscilloscope. I already did replaced the TDA8922 that from China it could be faulty that's why have the same problem no audio output.

[MobileXT]

I check the Audio output at IC724 at Pin 1 and Pin 7 and I don't get any audio output. I did also replaced the IC724 and still have the same problem no audio output. The power supply is okay I have +15v at Pin 8 and -14.84v at PIN 4 Look Like DSP IC702 is no audio output at PIN 34,33 & 35 ,36 . I do have audio output @ PIN 29,30 & 31,32 which is the LF output.

[MobileXT]

check if there is audio going to the TDA8922. Maybe the mute is on somehow, no VSS, no oscillator, something open in the output, etc.

No Audio going to the the TDA8922.

[CapLeaker]

Oyyy… it went as far as the DSP? Dayum! That sux!