Panasonic kx-tga600b display has 16 vertical lines and L1 L2 VE and battery symbol across the top. Can't use phone book.

SOURCE: panasonic KX-T7730 CORDED PHONE

my telephone is lock forget pasword

SOURCE: Need help for Panasonic KX-T7730 phone

Downnload the operator manual:
http://www2.panasonic.com/webapp/wcs/stores/servlet/PNAEndecaSearchCmd?N=779832046&Ne=&No=0&Nr=12001&Ns=&Ntk=SupportSearch&URL=

Carl Navarro

• 2460 Answers
• Posted on Feb 24, 2009

SOURCE: panasonic kx-t7330 suddenly cannot use intercom and phone calls

I'm guessing the phone is 8 years old and you spilled something into the keystrip.

Start by unplugging it to see if it resets. Then, look for a mechanical failure (sticky buttons, broken buttons, etc.). Some alcohol and a Q-Tip will clean the buttons, or carefully take the phone apart and wash out the housing.

Last, but not least, any of the new 7730/31/35/36 phones will replace that set.

Carl

SOURCE: Semi Dead Panasonic KX-TGA100N with ''C533'' displayed.

Panasonic KX-TG1050N Cordless Phone. Base handset (No. 1, KX-TGA100N) does not work, no keypad response or dial tone. Green indicator message light ON (should only work with the TG1000N base unit) all the time till battery runs down. Display shows message ?C533?. Can still send and receive calls on extension phones 2 and 3.

Testimonial: "This responder did nothing but repeat my initial post and yet gets credit for a solution?"

SOURCE: panasonic KX-TG1855AL envelope and speech bubble symbol

Hi, you probably won't get this anymore, but here is the fix (I had the same problem and couldn't get rid of it. Had no messages or calls that I hadn't viewed). You will laugh but press the Clear / Mute button for a few seconds. That is the bottom right button out of the four that are around the big round one. It has a C on it, a line under the C and the mute symbol underneath... Good Luck. Julia