Hi, Need how to enter service mode for a ATEC AV421 Thanks Steinar

SOURCE: Service Mode for Apex PF2720

On a standard PU1 chassis use the following:

1. Decrease the volume to 0
2. On remote press and hold the MUTE button till the color of MUTE displayed changes color. At the same time press MENU on the front of the Tv.
CH +/- to select
Vol +/- to change value

All other chassis:
Decrease the volume to 0, Press mute and video at the same time.
Adjust the TV with menu select buttons on remote.
Exit with the power button.
Hope this helps.
Bill

SOURCE: jvc tv

try this:
Click "Display" and "Picture Mode" simultaneously this worked on my jvc av-25lx14

if it didnt work or if you dont have those buttons then try this:
click on "Muting" and "Info(its the button that has the"i" symbol"

Good luck
Sila Awad

SOURCE: Service mode Tv Disney

I need code for entered service mode Tv Disney 14DN1WYD-PRINCESS
Thanks

SOURCE: what's the code for enter in the service menu?

Hi - service mode cars Disney please - no english - slovak . sorry.
juri32centrum.sk

SOURCE: as to enter SERVICE MODE canon imagePROGRAF iPF700?thanks

Service Mode - With power off, hold paper feed (paper select) button and info button while powering on, release after initializing screen.