HOW DO I RESET THE REMOTE CONTROL FOR SONY RMT-D255A TO FACTORY DEFAULT

It can't be done. The Sanyo remote is for a standalone VCR - DVD recorder. It has no programming capabilities.

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and also

https://www.sony.ca/en/electronics/support/product/dav-dx315/manuals

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Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary. .

1= change the batteries by new ones
2= clean the contacts cleaners with contacts cleaner
3= resolder the wires contacts batteries
4= retight the spring contacts batteries with pliers for better contacts
5= open the r.control clean the kepayds switch for dirty, oxide, and test for open, bad contacts.
6= try agan, if doesnot work go to the repair shop TV for fix it.

God bless you

You may have to reset the remote to the current command code. Here is the link for how to do that. http://community.sony.com/t5/Remote-Controls/RDR-VX525-Changed-to-DVD3-on-command-control-and-remote-won-t/td-p/158777

Hi,

Make sure that the Remote is operating in a range of 3 to 10 feet away from the unit.
Point the Remote directly towards the Remote Sensor of the Device.
Remove any obstacles that may be in the path of Remote and the Sensor.
Make sure that no interference is blocking the Remote to operate normally. Do not expose directly to Sunlight, bright florescent lights etc.
Try resetting the Remote by removing the batteries from the Remote control, press every button twice, and then re-install the batteries after 1 minute.
Make sure that none of the buttons on the Remote control is jammed.
Install fresh alkaline batteries in the Remote, do not use rechargeable batteries.
Make sure that the batteries are inserted by matching the polarity (+ & -).
Try resetting the Blu-ray Disc Player with which you're using the Remote.
If the issue persists, after all the possible troubleshooting steps, service may be required.

Thanks for using FixYa

Try to clean contact with contact cleaner spray( radio schack or computer sotre.

If the problem persist Reset with you code in your manual if you do not have the code go to: esupport.sony.com and download free.

After that if the probllem remain, your contact in the remote control is faulty.
Replace it.
Good luck, G-d bless you
Ernesto Cuadra
managua,nicaragua. c.a.

*Take the remote away from the player. Then hold the enter button and the code* 1 or 2 down for 3 sec. and then you will get some use and you can reset factory defaults. Then repeat from * to * reset for code 3. Hope this works for you.

Had the same problem when I changed the factory settings by mistake. There is no "cancel" button in the remote or the set. What worked for me was to follow the directions on P. 22 of the manual and change the remote settings to DVD 1. This is done by holding the "Enter" button and pressing number 1 on the keypad simultaneously for more than 5 seconds. Then, you go back to the "Settings" screen with the "Settings" button, change the control back to DVD 3, and reverse the setting in the remote by pressing "Enter" and the number 3 this time. Remember to hold them down more than 5 seconds. Good luck!