How do I unjam a disc stuck in the 5xCD tray of a Sony DAV-C770 compact AV system?

Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'nekkid'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Check for loose speaker connections at the speaker as another possible root cause for intermittent shutdown

Here is what Sony has available for download on their website. It includes operating instructions and specifications. Link

Register and download the manual for free at retrevo.com

http://www.retrevo.com/support/Sony-DAV-C770-Home-Theater-Systems-manual/id/350bh737/t/2/

Hi,
Yes, tis unit has 2 video inputs at rear so you can connect any other dvd player sound (analog or digital) to get 5.1 channel surround sound from DAV-C770 speakers.
Click Sony Support to download user manual copy of DAV-C770 that has more details about connection setup.
Hope this info will help you.
Thanks.

This is a repairable assembly. It needs realigment. I have realigned many of these units with no problem as long as theres no broken plastic parts. What ever you do dont force anything.Yes there is a video input jack that can be used for hookup

i think power amp or power supply board problem.if you are not the technician dont do anything.one thing remoove the all speaker wires and try to turn on agin.
nuwan.

power supply or power amplifire unit problem.give it to repair proffesional.

nuwan.

wrong playback system selection in bouth of tv and DVD player.
please slect auto mode bouth of . and try again.

nuwan

Will it not accept any dics? If so then I would recommend a DVD lens cleaner disc. Usually not more then 9.99.
Good luck,
Lee

The audio amplifier IC of your device are damaged you gotta change it,or send it to a repair center .