JL 500/1 component identification

JL 500/1 PCB 100005 Rev 10

Amp had low volume and muddy audio, then went out completely
RCA input read short. I need help identifying this part.
It’s in front of the supply capacitors
 

Attachments

  • 41B32173-C99B-458B-B70F-D3F0F537DF78.jpeg
    41B32173-C99B-458B-B70F-D3F0F537DF78.jpeg
    921.5 KB · Views: 204
Thank you.
I changed diode and started checking voltages on 10 pin connector near +- inputs and got to pin 4 , then blew changed diode again and small pop sound emitted from test speaker . when pin 4 probed for voltage.
1. 5v
2. -14.9v
3. 13.7v
Low power input selected and gain set lowest position
 
I was praying it was muting component that I’ve read about in similar posts here. I still haven’t lifted it because my voltages weren’t similar enough
 

Attachments

  • 539A22EA-B251-46E1-9539-A260DAE8CB4D.jpg
    539A22EA-B251-46E1-9539-A260DAE8CB4D.jpg
    690.3 KB · Views: 102
Last edited: