Factory reseting my panasonic head unit model no CQ-RXBT490W serial no 2EBGAG010676

SOURCE: 1- Panasonic 7'' monitor model # CQ-VA707WEUC

Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages.
Good Luck!

SOURCE: panasonic cq-c1323nw reset button

hi there type your model number into this link and you can download the user manuall, i've tried it for your model no and it works.
http://www.panasonic.co.uk/html/en_GB/220239/index.html#anker_220239

SOURCE: How to reset the id-code

I dont know if there is a way to reset it... Look up the manual for the CQVX100U on the internet, and see if there is a procedure... If not, contact Panasonic customer service 1-800-211-7262

SOURCE: PANASONIC CQ-VD7005U SECURITY CODE MASTER RESET ?

Press TRACK button for 10 seconds...

SOURCE: - Panasonic 7'' monitor model # CQ-VA707WEUC 2- Panasonic brain model #YEPOFX3799

you hold the next track button 15sec at the code screen