Orion HCCA1200.2

[imraneesa]

Hi
Attached are the output signals of two channels. One channel side, bottom wave clips and other channel top wave clips. Amp goes into protection. I removed the protection to get the waveforms.
All the rail voltages positive and negative are similar in value and low voltages are also good.

 

[Perry Babin]

Do they clip evenly if you slowly increase the level just to the onset of clipping?

 

[imraneesa]

No they don't clip evenly.

 

[Perry Babin]

Photo of main and any driver boards?

 

[imraneesa]

It have JRC 13600 on the board that also has the same waveform on some pins.

 

[Perry Babin]

Which pins have the same signals?

Is the voltage on pins 1 and 16 constant or is it changing? There may be a series-connected 30k resistor and if so, check the voltage on the side not connected to pins 1 and 16.

 

[imraneesa]

Pins 1 and 16 voltages os not constant. I traced them and reached to this attached picture which is remote controller switch. Once I removed it amp is functioning normal. All the 3 pins of this jack are showing shorted.

 

[Perry Babin]

Does the jack show any signs of damage or any metal strands in it?