Press MUTE button twice on Remote Control.
Press MUTE button again and keep pressing.
While pressing the MUTE button, press MENU button on TV set.
DISPLAYING THE ADJUSTMENT MENU
Press MENU button on Remote Control.
Service mode <–> Adjustment mode [Toggles]
KEY FUNCTION IN THE SERVICE MODE
The following key entry during display of adjustment menu provides special functions.
Test signal selection : TV/VIDEO button (on Remote)
Selection of the adjustment items : Channel UP / DN (on TV or Remote)
Change of the data value : Volume LEFT / RIGHT (on TV) or UP / DN (on Remote)
Adjustment menu mode ON/OFF : MENU button (on Remote)
Initialization of the memory : CALL + Channel button on TV [UP]
Reset the count of operating protect circuit to “00” : CALL + Channel button on TV [DN]
“RCUT” selection : 1 button
“GCUT” selection : 2 button
“BCUT” selection : 3 button
“CNTX” selection : 4 button
“COLC” selection : 5 button —– Color thickness correction
“UVTT” selection : 6 button note: Displayed differently as shown below, depending
on the setting of the receiving color system. COLP (PAL); COLC (NTSC); COLS (SECAM)
Automatic A/D Adjustment(PC, Component) : 7 button
Self diagnostic display ON/OFF : 9 button.
CAUTION : Never try to perform initialization unless you have changed the memory IC.