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Totally dead Texas Star DX667V Amplifier

I have a totally dead Texas Star amp that won't even light-up.I have checked both fuses & the big diode diode that crosses both hot fuses.I also took the big diode outta line,& no power.Could someone please tell me what to check next?I also don't see any burnt foil traces.It has 2 fans added to the CW key that are hooked up to the 2nd button,that won't come-on,either.Thank-you!

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  • Earl Cannon Jan 29, 2008

    Thanks Mechanic,I'll check-out those switches.The 2nd one looks like it has been a little warm.Yes,I have lots experience soldering & using meters.I just need some help diagnosing issues periodically.Those switches come as a unit for about $30,& look like a humdinger to put in,but I can handle it.When I turned it on the other day,it lit up & the fans came on,& then went totally dead.I tried cb tricks the other day & didn't see any posts relevant to my case,but I'll check some of the other forums that I have joined.Thanks so much for the tips,& I'll let ya know what I find-out. Squirrly



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If you still have this problem, email me at [email protected]
I can give some tips and help diagnose and repair this for you.

you may want to check out my website

Posted on Jul 22, 2009

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Squirrly, do you have any experience with a dc voltmeter? If so, I would check the legs on the power switch. You have like 4 or 5 pins in line on the switch. As your pushing the switch in, it's transferring the power from 1 or 2 pins to the other pins. I had a 667 that the power switch burnt inside and would not turn on the amp. The problem is it's a double sided circuit board and the switches come as a set. 2 strikes right there unless your experienced with soldering and desoldering and troubleshooting. The other option I have is that your Texas star is possibly still under warranty. Here is a post telling about it on another site.
Texas Star has an 8-year warranty.
If it's not a basket case you should call Mike at TS and ask for an RA# to send it in for repair.
Even if you don't want to send it in and rather fix it yourself I'd call him and ask for ideas.

Call 760-480-8800
M-F, 1-4pm PDT
Ask for Mike in Texas Star.
Squirrly, I hope this helps you out and if you do decide to repair it yourself, go here and sign up for some of the best straightforward info and some great radio tech's and ideas.
hope this helps you out,,, Mechanic

Posted on Jan 29, 2008


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