Cant turn off demo mode on jvc kdg140

Try this
1. Press and hold the MENU button
2. Turn the volume to select DEMO and press the volume to enter the sub menu.
3. Turn the volume to select DEMO OFF and press the volume to set.
4. Press MENU to exit.

To turn off the demo go to the link below bottom right of page 1.

http://www.jvc.ca/en/consumer/downloadmanual.asp?f=ma372ien.pdf

Good Luck

If you press and hold the menu button the display will change into the main menu mode. Scroll to "DEMO" and click or press in button. You can then scroll to On or Off effectively turning off or on the demo mode.

Press and hold SEL until menu appears
Using the scan button (FWD/REV), select Clock H
Using the volume knob/button, set the value
Using the scan button (FWD/REV), select Clock M
Using the volume knob/button, set the value
Press SEL to save and exit

I held down the sel button until demo showed on the screen. Released the sel button. Turned the volume control to left or right until it said Demo Off then hit the select button again.

I need a code JCV KD-G333???

Hello jayme84,

To cancel "DEMO" mode on the JVC:

Enter the PSM (personal settings mode) and turn DEMO off.

1) Press and hold "SEL" until the display changes.
2) Use the left/right rocker switch until "DEMO ON" is displayed.
3) Turn the volume knob to select "DEMO OFF".
4) Press "SEL" to exit.

Hope this helps.

Make sure the unit is on. Press the FM Mode /Mute -Demo button (right next to the power) press it untill you get to either mono or auto (-for stereo). That will take the unit out of the demo mode. next turn the music jog dial (located just above the preset buttons) untill you get to which ever setting you choose. Hope that helps. ( I can't find the manual on line either- not even from JVC! )

You will find the demo mode in the settings menu. It's options will be on and off and are reset to default each time power is disconnected from the unit.

1st, hold the "SEL" button
2nd, use the left/right arrows to select option "Demo"
3rd, turn the volume knob until "OFF" is displayed
Then, lastly, press the "SEL" key once more.

Here is a link to the pdf document for the instruction manual off the JVC website: http://books.jvcservice.com/Download/717497409/GET0485-001A.pdf

Hold down the "SEL" button, and use the CD track skip button to scroll to where the display says "DEMO," and use the volume knob to change the setting to "OFF." Push SEL again and you're good to go.