DX500 blown trace...

[2NC995]

Sometimes just as you've got everything figured out.

I have my fan connected to a 1/8 mono jack, which is supplied ~12V from the power switch on my DX500. Works the trick and turns on / off with the main power. Perfect...almost.

Hindsight is an incredible thing, and I now know not to unplug the fan while its on...because if you do you create a direct short, and even though momentary, it's enough current to pop a trace like dandy little fuse.

The smallest portion of the + supply to the power switch isn't exactly in a convenient location, either. Directly under the switches on the front board. Ughhh.

I'll probably end up cleaning out the sliver of a trace with an exacto knife (I *think* I can get in there) and jumper a new supply over to the switch, even though it feels kind of half-assed.

 

[Shadetree Mechanic]

Maybe just put a jumper wire across any convenient place along the trace? It doesn't have to be right at the bad spot.

 

[2NC995]

Maybe just put a jumper wire across any convenient place along the trace? It doesn't have to be right at the bad spot.

Yep. Unfortunately, addressing the trace directly would require a full disassembly; including removal of the boards and removal of all the switches...suffice to say, I ain't doin' all that.

So long as I can remove the burnt and lifted trace (to prevent additional problems) I'll just jumper from the main positive trace on that board over to the switch.

I actually hate doing things that way...but I've finally arrived at the point in this hobby where I like using my stuff more than working on it!

 

[Handy Andy]

 

[Ranch55]

Sometimes just as you've got everything figured out.

I have my fan connected to a 1/8 mono jack, which is supplied ~12V from the power switch on my DX500. Works the trick and turns on / off with the main power. Perfect...almost.

Hindsight is an incredible thing, and I now know not to unplug the fan while its on...because if you do you create a direct short, and even though momentary, it's enough current to pop a trace like dandy little fuse.

The smallest portion of the + supply to the power switch isn't exactly in a convenient location, either. Directly under the switches on the front board. Ughhh.

I'll probably end up cleaning out the sliver of a trace with an exacto knife (I *think* I can get in there) and jumper a new supply over to the switch, even though it feels kind of half-assed.

View attachment 36003

Yep, I have repaired a few of those traces also.

 

[2NC995]

All patched up and running. I was able to cut the trace at the connection to the preamp switch and remove the sliver without disassembly.

Then I ran a new wire from the pos supply on the front board, behind the panel, and lap soldered to the trace supplying power to the main switch.

Not perfect, but it’s working.

 

[Tokin]

Rca might be a better plug for that.

 

[2NC995]

Rca might be a better plug for that.

True, any number of connectors would be more appropriate.

But a 1/8 mono jack fits rather nicely in the supplied “CW key” hole.