I have good news and bad news. Good news is that i found out what the problem is. Bad neas is is that it's a burnt resistor and i dont know what value it is

Chances are the resistor burned when the power supply failed. I'd look for more--a resistor doesn't just burn up for no reason. Keep looking for blown capacitors, fried traces, popped transistors, etc.

 

Yeah but im gonna have one hell of a time trying to figure out the value of that resistor.

 

Yeah but im gonna have one hell of a time trying to figure out the value of that resistor.

Well, the upper limit on "one hell of a time" is the $15 manual I linked to. Looking better every moment?

+1 on that resistor NOT being the root cause, btw.

 

Well, the upper limit on "one hell of a time" is the $15 manual I linked to. Looking better every moment?

+1 on that resistor NOT being the root cause, btw.

Yeah i was looking at the power supply board and it looks pretty dirty on the bottom. And as much as i hate to do it, im gomna have to buy that $15 manual

 

Where is the post where the make and link was posted? I must be losing my marbles or mods are playing tricks on us.

What is the make and model?

 

My bad. I may have confused this with the Sony thread. More rum and lime for my friends, it's raining buckets here for the first time in months!

 

Where is the post where the make and link was posted? I must be losing my marbles or mods are playing tricks on us.

What is the make and model?

Its a sony STR-6045

 

I now have some pictures:

 

That's one roasted resistor!

In the final photo, is that blue wire possibly shorted to the cap terminal?

Those transistors on the heat sink look to me like someone other than Sony has been working there. All that thermal paste doesn't look professional. Not that this helps you.

 

That's one roasted resistor!

In the final photo, is that blue wire possibly shorted to the cap terminal?

Those transistors on the heat sink look to me like someone other than Sony has been working there. All that thermal paste doesn't look professional. Not that this helps you.

I don't know. are you talking about the two blue wires in the top right hand corner, the wire to the left of that, or the wire on the far left

 

here are some more pics of the power supply board:

 

Ur amp is like a haystack, can't make which leads to where.

U can start by checking for shorted diodes and transistors.
Do u know how ?

 

Ur amp is like a haystack, can't make which leads to where.

U can start by checking for shorted diodes and transistors.
Do u know how ?

no, not really.

 

Do u have a DMM ?

 

Do u have a DMM ?

a digital multimeter? yes I do

 

Okay then find a diode, two or three will do.
I'll show u how to test them.

And post a photo with diodes and ur multimeter. So I know what I am dealing with

 

Okay then find a diode, two or three will do.
I'll show u how to test them.

And post a photo with diodes and ur multimeter. So I know what I am dealing with

oh, I know how to test diodes, but not transistors

 

Do u know the internal diode layout in a typical transistor?

Go through this and study them

 

My mistake..go thru this

The meter reading will never show zero as stated in the first pictures. If u get 0V then the junction is shorted.

Any voltage outside the range 0.4V to 0.7V is not considered correct in forward bias connection

 

My mistake..go thru this

The meter reading will never show zero as stated in the first pictures. If u get 0V then the junction is shorted.

Any voltage outside the range 0.4V to 0.7V is not considered correct in forward bias connection

so basically I just put the positive lead of the multimeter on the P-type material and the negative lead on the n-type