Sony STR - D665

could be bad connections on the preamp IC's. You would have to have some soldering skills to be able to touch up the connections.

HI,

Hi, first you have to enable the Bluetooth to scanning mode,
To do this, press and hold the power button continously for 10 seconds, you may have a stable LED, this shows that its in discoverable mode, Now perform scanning and you may get your device and you can pair and make it work

Please rate this solution if this solves your issue, or leave me comment ill help further
RNJ VINODKUMAR

replaced power output amp

In all likelyhood, one or more output transistors have failed. Please confirm your model as STR-DE335 and I'll post the probable parts that need to be checked.

Dan

Hopefully this post isn't too late... That receiver has the ability to disable certain inputs. The easiest thing to try is to do a factory reset.
1. Turn off the receiver
2. Hold down DISPLAY and PANEL UP/DOWN buttons and press power.
3. All Clear should appear on the screen.

Unfortunately, this clears out all of the other settings on your unit. It should, however, re-enable the inputs.

Let me know if this helps!

When you moved did you put somethink on it so that it does not have good ventillation through itself to keep it from overheating? Or set it down in a way that it does not have ventilation room under it? Some papers set on top of it or a pillow under it would block good cooling ventilation through it.

Check if you connect corectly the speakers wiresnand if they are right connected the audio amplifier Ic are damaged

Protet mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.

If you do all the above and still get Protect, then there is a real fault.

In that case the unit may be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

The easiest way is to hook up your DVD/VCR combo directly to the back of your Sharp LCD TV, then run a component audio output from the TV to the audio input in the back of the receiver. Make sure you hook up your front, center and rear speakers correctly to the receiver, then go through with the speaker calibration steps - per manual, then it should work with no problem. Good luck!
Marc

I have experienced a similar problem with my Sony STR-GX57ES and took it to a certified tech only to find it needed the power supply replaced. I opted to hunt down a compatible power supply but have been unsucessful thus far. That being said I picked up an STR-D665 for next to nothing and found the power supplies to be quite different (you would hope so any, with the ES meaning Elivated Standard and all) but with the D665 working flawlessly I'd rather have something working than nothing. Good luck!