Cadence A7Hc Diagnostic Light...

[Trixter 10+ year member]

Hey guys...wow has it been awhile since I've been on here!

I have a Cadence A7Hc running a single Brahma 15 (gen 1) 2ohm DVC...so the amp is at 1ohm. I've had this set up for a long time and just yesterday the diagnostic light came on and no more sound. The diagnostic light and power light flash intermittently. Can anyone shed some light? Looking around to house to find my manual...but I'd thought I'd ask.

(And yes, I did a search)

Click to read more...

 

[Shinju 10+ year member]

Sounds like the output section died on you. Time to get it fixed!

 

[CADENCE SOUND 10+ year member]

Sounds like the output section died on you. Time to get it fixed!

Give that guy a cigar!

Yeah, the problem is with either the audio output transistors or with the output driver board.

Call us @ 800-477-2328 ask for Roy or ask Greg in Service

 

[Trixter 10+ year member]

Awesome! Thanks guys!

Yeah...really hoping that I don't have to get a new one...love to get another and strap them...but thats a different story...

 

[Trixter 10+ year member]

Well, I finally got around to taking the amp apart and found the issue. There was a screw with a small brass/copper spacer that holds the board in the center of the amp...it goes form the board to the heatsink. The spacer is between the back side of the board and the heatsink. Well, some how the screw is mia but the spacer managed to get caught between a CAP terminal and a trace on the board. Once the spacer got hot enough it melted the plastic coating on the board and made contact with the trace and POOF!

So I guess the question now is can this be repaired?

Uploaded with ImageShack.us