Hy wont my sony str-de675 turn on

SOURCE: sony receiver str-da2000

Here is the link for the user manual if you need it; http://esupport.sony.com/US/perl/model-documents.pl?mdl=STRDA2000ES®ion_id=1 Check page 54 for details of the error message - it should disappear if the speakers are connected properly and the unit is switched off and on. Check page 17 for speaker connection details, and ensure they are all correct. Check page 19 for details of the factory reset/memory clearing. Hopefully this will clear the error code and let you set the unit up. Hope this helps, please ask again if no luck :)

FM Stereo FM AM Receiver

esupport.sony.com

Sony eSupport Model Support

SOURCE: SONY STR-DE675 RECEIVER

Protect mean that the speaker wires are touching eachother or that one of your speakers are blown and it is shorting out the receiver.

SOURCE: Sony STR-DE698 7.1

in Sony receivers Protect display shows problem / fault in Amplifier output area. Qualified technician can repair the damage.
Regards,

SOURCE: Sony str-de675 receiver has no sound at speakers when turned on.

This unit is having a problem with the preamplifier and power amplifier section. The reason to suspect this is that you can still hear sound, this is not likely if you ahd a failure in the power supply section. The unit may have had a failure in the amplifier areas of these sections, These are the signal amplifier sections that increase the power of the signal to drive the sound in the speakers .The Unit is probably in the protection mode reducing all power to prevent further damage to the rest of the receiver. You can go to the www.sony.com website support section and look in the frequently asked question and troubleshooting sections for problems like yours and see if they have any answers. On this website you can also find customer support. Ask them questions about the problem and see if they have any solutions.If all this fails to answer you problem, you can try opening the unit and looking for the problem yourself. Only work on the unit with it unpluged from the power source. Take off the top cover and look for any damaged areas, on the pc boards.They would be brown areas from excessive heat due to component overheating and possible failure.Look for capacitors that may have gone bad, they will be bulging from the top and bottom and may be leaking material from inside of them. Any component like this needs to be replaced. You may find burnt resistors and other failed components that will require a digital voltmeter to test.If you have expperience with this type of repair you might be able to isolate the problem and replace the parts. This may require the help of service information due to the complexity of the receiver's operations. Try to get a schematic or service manual from the web or a repair shop. This will have all the parts and a diagram of the all the different sections of the receiver. Usuall there is a power supply section, a tuner section, a preamplifier section, and a amplifier section. There also could be a equalizer section and other sections according the functions of the receiver. The failure most likely has occured in the preamplifier section or amplifier section. The problem in the preamplifier section could be a signal diode failure or a signal amplifier failure. in the amplifier section the problem could be in the output power devices which may be transistors or ic's depending on the type of output amplifier use in the unit. Usually not that hard to find with good service information and test eauipment.You may want to take this to a school that teaches electronic servicing and see if they will work on the unit for you for the cost of parts and a small labor fee. Call them first and see if they can help you out. I hope this helps you with your problem.

SOURCE: Im going to be running a set of BOSE acoustimass

By set, do you mean just the satellite speakers? Without the sub? With the sub?

Your receiver front, center and rear channels are rated at 100watts per channel at 8 ohms. If the Bose speakers are 8 ohm speakers, you're good to go. And as long as they have speaker connectors on them, and are not specifically made to work with the sub, or with each other(in other words proprietary). If you are using the entire Bose system, it should work fine.

Hope this helps.