20 Most Recent Sony DAV-C770 System Questions & Answers

Unplug unit from AC power outlet for 5 minutes, plug it again and check.
Need further help, let me know.

If you experience difficulty with the disc tray opening or closing, follow these steps to try to resolve the issue.

1. Turn off the power to the disc player or the stereo system, if the disc player does not have a separate POWER button.
2. Unplug the power cord from the AC outlet.
3. Verify there is nothing is blocking the tray from opening or closing.
4. Let the disc player or the stereo system remain without power for approximately one minute.
5. Plug the power cord back into the AC outlet.
6. Turn on the power to the disc player or stereo system.
7. Attempt to open or close the disc drawer or tray.

If the issue is still unresolved, service may be required. this is direct from sony hope it helps

There is a mod for this unit to correct probem you need to add a pull up resistor,we will repair for 125.00 send to A+ Electronics 136 W.Carmel DR. Carmel Indiana

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

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,
Unplug unit from wall socket for minute, replug back in and turn it On then press eject button to take out disc.
Let me know if that does not help to provide you next level info, can you take off top cover of unit?
Thanks.

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.

you need to replace the power ic... i don't know if theres any technician around can open and fix.

This might be worth checking out...the headphone jack contacts can get sprung, and not switch the sound back to the speaker circuits. Sometimes they can be sprayed with electrical contact cleaner, and sometimes they can be resprung to make contact. Since you had the unit worked on, its possible that a ribbon cable or other wire was left disconnected. I would take it back and have the folks that worked on it check it out real quick. Chances are that something is not connected, or the software could need to be reset.
Good luck, and hope this helps.

There is a gear underneath the tray that may be broken or possibly the open close detect switch nay be bad. You will have to remove the tray,you will then see that gear.

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