LC-30HV2E (serv.man8). This redesign has been made to improve the video noise (SN) ratio. - Sharp TV Service Manual (repair manual). Page 3

The adjusting value is saved in the PC board.  Write down the current adjusting value before changing the PC board.

  1

 Enter into process mode.

  2

 Write down the number of the item from the chart below.

Refer to page 21 of the operation manual for entering the process mode and operation.
Below is the excerption.

           

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   Process Adjustment Mode

(1)Entering the process adjustment mode

Using the system cable, properly connect the LCD Display Unit and the AVC System.

Turn ON the power while holding down the INPUT and VOL DOWN buttons located the LCD Display Unit.

(2)Exiting the process adjustment mode

Process adjustment mode: Turn OFF the power.

(3)OSD menu and parameters displayed at manual adjustment

Descriptions of special buttons in process adjustment mode

Cursor UP key

:Proceeds to the previous page.

Cursor DOWN key

:Returns to the next page.

VOL UP key

:Increases the adjusted value by 1.

VOL DOWN key

:Decreases the adjusted value by 1.

Cursor LEFT key

:Decreases the adjusted value by 10.

Cursor RIGHT key

:Increases the adjusted value by 10.

CH UP key

:Moves up the cursor.

CH DOWN key

:Moves down the cursor.

Pull out the AC cord and take off the old PC board according to the operation manual.
You can use the same screws for the new PC board, as the shape of the new one and the old one is compatible
with one another.
Leave the top cabinet of the AVC center open for adjustment.