TO ENTER SERVICE MODE
- Press {Power Off => Display => Menu => Mute => Power On} keys in sequence to enter service mode.
WHITE BALANCE ADJUSTMENT
- After enter the Service Mode, initilize all set data.
- Input a Toshiba pattern.
- Using Probe [CA100], do white balance adjustments.
TO ADJUST LOW-LIGHT
- Adjust sub-brightness to set 'Y"
- Adjust B-Cutoff to set 'y'
- Adjust R-Cutoff to set 'x'
TO ADJUST HI-LIGHT
- Adjust sub-contrast to set 'Y'.
- Adjust B-Drive to set 'y'.
- Adjust R-Drive to set 'x'.
Check the value of low-light. If necessary, adjust low-light.
Check the value of high-light. If necessary, adjust hi-light .15.
SCREEN VOLTAGE ADJUSTMENT
- Screen voltage and white balance are related each other. Make sure, both these adjustments are correct.
- Adjust screen voltage, before White Balance Adjustments. Make sure the screen voltage is correct.
- If white balance has been re-adjusted, re-check screen voltage too.
- After adjustments has been done, check if there if spots appear on the screen after Power On/Off key. If fly back line [thin white horizontal lines across the screen at about an inch apart, all over the screen], re-adjust the screen voltage to a little less. It will be best to adjust screen voltage out from direct light. A dark room is more preferable.
