JVC LT-23D50BK TV Service Menu

PIXEL FAULT
There are three pixel faults - bright fault , dark fault and flicker fault - that are respectively defined as follows.
 BRIGHT FAULT
In this pixel fault, a cell that should not light originally is lighting on and off.
For checking this pixel fault, input ALL BLACK SCREEN and find out the cell that is lighting on and off.
 DARK FAULT
In this pixel fault, a cell that should light originally is not lighting or lighting with the brightness twice as brighter as originally lighting.
For checking this pixel fault, input 100% of each R/G/B colour and find out the cell that is not lighting.
 FLICKER FAULT
In the pixel fault, a cell that should light originally or not light originally is flashing on and off.
For checking this pixel fault, input ALL BLACK SCREEN signal or 100% of each RGB colour and find out the cell that is flashing on and off.


JVC LT-23D50BK Service Menu
Photo credit : trend-kid.com


Service menu mode
 BASIC OPERATION OF SERVICE MODE
 HOW TO ENTER THE SERVICE MODE
(1) Press [INFORMATION] key and [MUTING] key on the remote control unit simultaneously to enter the SERVICE MODE SCREEN.


 HOW TO EXIT THE SERVICE MODE
Press the [MENU] key to exit the Service mode.
 CHANGE AND MEMORY OF SETTING VALUE
 SELECTION OF SETTING MENU & ITEM
 [FUNCTION channel up / channel down key : Select the SETTING MENU & ITEM
 [OK] key : Decision the SETTING MENU & ITEM
 CHANGE OF SETTING VALUE (DATA)
 [FUNCTION volume down/volume up] key.
 MEMORY OF SETTING VALUE (DATA)
The setting value will be stored automatically when release the REMOTE CONTROL UNIT keys