The set is in service mode and the way to clear it is by pressing the action and power buttons on the set, not the remote, and hold till set turns off. It should then turn back on and be on channel 3 and at a preset volume level. If that doesn't work you may have a problem on the key scan lines or on the switches. ************************************************** Jim Myers Since 1972 Telrad Electronic Services Co. Fort Wayne, IN 46815 ************************************************* ----- Original Message ----- From: "electronicrepair" <electronicrepair@xxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Friday, December 19, 2003 4:41 PM Subject: [TechAssist] Re: PANASONIC TV CT-27SX12F Vertical problem? Tried it, did not work.. But now when I push the power button on the remote a blue window opens up on trhe bottom right corner which displays 18 B 00, push again you get 115 C 00, and so on. Thank you, Mark Electronic Repair Services 48 W. James St. Lancaster, PA 17603 ----- Original Message ----- From: "Larry E." <videotech@xxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Friday, December 19, 2003 4:21 PM Subject: [TechAssist] Re: PANASONIC TV CT-27SX12F Vertical problem? > Mark, I had a similiar problem on a Panasonic projection set, mine had > vertical shrink, a > yellow CHK, and it would intermittently channel up one channel when > turned on, fix was > to re-set the eprom, on the remote push action & power keys at the same > time, hold them > down until the set shuts off, hope this is the fix for yours, Larry E > Larry Eastman > American TV & Electronics > Crystal River, Fl. 34428 > > electronicrepair wrote: > > >This TV came in with the vertical shrunk top and bottom to about 6" pix. > >Also on the screen, on the top left it displays CHK in red and some numbers > >next to that.. > >I assume this is in some sort of factory menu. This set came from another > >shop because they > >didn't have a clue what was happening, which now it makes two of us. > >I checked the caps on the vertical section they all seem OK. > >One time that I turned on the whole picture came on, but it was very jittery > >and after about 5 minutes > >it turned off and the only way to turn it back on was to unplug the set and > >plug it back in then turn it on. > >Can someone shed some light on this dilemma, I would appreciate it very > >much. > >Thank you, Mark > >Electronic Repair Services > >48 W. James St. > >Lancaster, PA 17603 > > > >*************************************************************************** ** > >Lost Password: > >http://www.tech-assist.org and select "Login Problems?". > >Email Archives: > >//www.freelists.org/archives/techassist/ > > > > > > > > > **************************************************************************** * > Lost Password: > http://www.tech-assist.org and select "Login Problems?". > Email Archives: > //www.freelists.org/archives/techassist/ > **************************************************************************** * Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/ ***************************************************************************** Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/