Hifonics XX Hercules

[blazer40]

Which schematics are you guys referring to?

 

[brandes.cm]

SPL ext2000d

Sent from my DROID BIONIC

 

[blazer40]

Mind emailing me a copy?

 

[brandes.cm]

Send a request to brandes.cm@Gmail.com

Sent from my DROID BIONIC

 

[brandes.cm]

The -12V regulator was reading -15V, replaced that, voltage is fine. That was the only issue. The triangle wave form on Pin1 of the TL072 is still messed up.

Output waveform, with no input signal
Roughly 250hz

 

[brandes.cm]

Found a resistor that was out of tolerance, seems to have fixed the issue. Need to test under load.

 

[Perry Babin]

Post a photo or the circuit board designation of the resistor. It may help someone else in the future.

 

[brandes.cm]

R24 was the resistor, was reading 15k ohms.

Is there any way to bypass the secondary board with the controls on it. I believe it has an issue. My waveform starts to get noise at the peak without much gain.

 

[Perry Babin]

I would think that you could bypass it by jumping the similar colored wires for the shielded cables in the harness.

 

[wintermute]

noobies question moved to here --> http://www.diyaudio.com/forums/car-audio/222499-help-gen-xx-hifonics-hercules.html#post3219882 other posts regarding the move deleted.