Sony STR-D365 Stereo Receiver Repair

Fixing a 2 channel Sony receiver.

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Category:

Entertainment

Tags:

• Sony
• receiver
• repair
• test
• STR-D365
• 100
• watt
• Matthew
• Ebel
• music

[theone3210the]

I have a Sherwood model rv-6010r a/v stereo receiver, all the speakers are hooked up right but as the receiver is play ( min vol around 15 to 20) about 15 to 20 mins the receiver shut off. I have to wait around 15 mins and then the receiver will work...but will go back to doing the same thing again is this a transistor problem or more......can u help me thanks

[Maxxarcade]

@theone3210the Is it turning right off, or going into protect mode? See if your speakers are all 8 ohms, and make sure nothing is restricting the vents.

[Watcher3223]

Well, I've just been given a STR-GX5ES where the left channel has a pair of shorted output transistors.

Unfortunately, unlike the D365 you serviced, there is no removable panel on the bottom of this receiver.

I'm in the midst of ordering parts already, though I wonder how I am going to readjust the bias without a scope.

[Maxxarcade]

@Watcher3223 As long as you haven't touched any of the adjustments, you should be able to replace the transistors and go. Newer stuff like this doesn't have a bias or offset adjustment.

[Watcher3223]

@Maxxarcade

As for it's failure, this is going out on a limb, but I think the output transistors were destroyed maybe due to bad joints in the power amp circuit.

Considering the age of the unit and the fact that Sony had a tendency to use minimal solder on their joints, I wonder if that could be a likely hypothesis?

[Maxxarcade]

@Watcher3223 Hard to say if that caused it or not. Depends on which ones were broken.

[dillweederik]

I have a Sony str de 915 and it turns on and everything but it what put out any sound. Should I run thicker wire or just shoot the sum bitch lol Plc comment back

[XxChEcKoxX]

Well hello i have a huge question, i have a Samsung Mini componet And i think i fried it beacause when i was listening to music really loud the ends of one speaker cable touched, and it went into protect mode but when i turned back on the sound was all blurry and foggy and at very low volume it shuts down

now my question is can it be repaired ?

if yes, what would it be the aprox cost of it ?

thanks

[Watcher3223]

@Maxxarcade

Must rephrase.

When I indicated that, so long as I stick to the original parts and, provided other parts are okay, that I shouldn't need to reset bias, I meant it as a question.

Sorry about that.

And, thank you for your assistance.

[Watcher3223]

@Maxxarcade

The STR-GX5 has two potentiometers, one for each channel and each labeled "bias."

It is of late 1980s vintage.

But, so long as I stick to the original parts, I, more than likely, should not need to reset the bias, especially if all other parts are okay.

So far, the emitter resistors still measure at their rated specs and other parts, including the bias transistor, appear to be okay and there's no obvious signs of thermal distress on even the board itself.