How to Troubleshoot a Burning Resisitor Problem...

[rsalinger]

Basically, this is my issue: In the attempt to reuse a Traynor TS-50 (solid state) Chassis and Cabinet for a Stangray Clone build, I rehoused it in a 1U rack unit...

Now, when I turn it on, I get no sound and it keeps burning up a 100ohm resistor (well, at least what I 'believe' to be a 100 ohm resistor)...

What I basically want to know is the proper "process"/"checklist"/"how-to" for troubleshooting the 'source' of this issue... obviously, since this is an obscure SS amp, with no voltage chart... it'll be a little more difficult.

Any help would be sincerely appreciated.

I understand that this amp is nothing special and has no commercial value. However, it has this one sound that works well on recordings. So, I was really hoping to hold on to it.

I'm getting a sinking feeling, like I'm up the creek without a paddle.

Thanks in advance.
Rob

[Cantplay]

Is the resistor in the power supply?

Check your output transistors. One msy have shorted, drawing extra current.

John

[rsalinger]

Thanks John.

The resistor in question is the 100 ohm resistor following the 2N6556 transistor on the the lower right-hand corner of the I-490 Board (Power). See Attatched Schematic.

I'm total transistor noob (knob? LOL). How do I check them... I don't have a data chart, unfortunately.

[vibratoking]

I'm getting a sinking feeling, like I'm up the creek without a paddle.

I think you may have the wrong paddle.

There are voltages on the schematic. Have you checked any or all of them? That is where I would start. Tell us what you find. Let's verify that that the power supply is working properly. BTW, the 100R resistor is on the power amp board and not the power supply board. There is no power board. I don't know if I could walk you through diagnosing the source of the problem in the PA given what I think you know, but we could attempt it.

[rsalinger]

I'm getting a sinking feeling, like I'm up the creek without a paddle.

I think you may have the wrong paddle.

There are voltages on the schematic. Have you checked any or all of them? That is where I would start. Tell us what you find. Let's verify that that the power supply is working properly. BTW, the 100R resistor is on the power amp board and not the power supply board. There is no power board. I don't know if I could walk you through diagnosing the source of the problem in the PA given what I think you know, but we could attempt it.

Thanks, Vibroking.

I think my problem resides in trying to paddle with a 'spoon'... LOL.

I will post voltages.

[cbass]

Nevermind I see that you said no sound