Screen only displays a message that says, "no sync detected". This message is also displayed upside down. If I hit the 'menu' button on the remote, the menu is displayed on the screen upside down also.

I provide this information for those that are qualified and trained to do TV repair work. Entering or making changes in service mode by untrained persons can cause significant and permanent damage to your television. If you are not qualified to service your television, please DO NOT ENTER these service menu codes.

-Press the {MENU} button and go to the User Menu screen, make sure
that the indicator (arrow) is pointed and highlights the "Picture Control".

- The buttons on top of the remote are set to TV & VCR respectively.

- Set sleep timer to "0" minutes and while it is displayed, simultaneously
press the {VIDEO STATUS} & {DISPLAY} buttons.

- The main service menu will be displayed with choices #1 through #9.
- Press one of the corresponding number keys to enter that menu.

- Use the {CH+} {CH-} buttons to navigate within a menu.
- Use the {VOL+} {VOL-} buttons to change the values.
- Use the {MUTING} button to memorize the changed value.
- Use the {BACK} button to exit the service menu.
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Turn the TV on.
Using the remote control:

- Press the {INFO} & {MUTE} buttons at the same time.
- The Service Menu will be displayed

- Use the number keys to select the category.
- Use the {VOL+} {VOL-} buttons to enter the category.
NOTE: Some models don't have category selection.
- Use the {CH+} {CH-) buttons to select item to be adjusted.
- Use the {VOL+} {VOL-} buttons to change values.
- Press the {INFORMATION} button to exit.
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Turn the TV on.
Using the remote control:

# Press {DISPLAY} & {PIC MODE} buttons at the same time.
# The Service Menu will be displayed

# Use the number keys to select the category.
# Use the {UP} {DOWN} buttons to enter a category.
# Use the {LEFT} {RIGHT} buttons to select items.
# Use the {UP} {DOWN} buttons to change values.
# Press the {DISPLAY} button twice to exit
------------------------------------------------------------------------
# Press the {MENU} button.
# Select "Clock Set".
# Set clock to 3:21 AM and press "Start Clock".
# While a "Thank You" message is displayed on screen, press the {MUTE} and {MENU} buttons.
# The Service Menu will come up.
# Use {UP} {DOWN} to select items.
# Use {LEFT} {RIGHT} to change values.
# To exit, turn the TV Off.