HOW TO ADJUST FOCUS & WHITE BALANCE TO SONY KV-32FQ70U – FD TRINITRON TV

TO ADJUST FOCUS

• Receive a television broadcast signal.
• Normalize the picture setting.
• Adjust the focus control located on the fly back transformer to obtain the best focus at the center of the screen.  Bring only the center area of the screen into focus, the magenta ring appears on the screen. In this case, adjust the focus to optimize the screen uniformly.

G2 Adjustment.

• Input a dot signal from the pattern generator.
• Set the Picture, Brightness and Color to minimum.
• Apply 165V DC from an external power supply to the R, G and B cathodes of the CRT.
• Whilst watching the picture, adjust the G2 control [SCREEN] located on the fly back transformer to the point just before the fly back return lines disappear.

White balance adjustment for TV mode.

• Input an all-white signal from the pattern generator.
• Program the Remote Commander for operation in Service Mode.
• Enter into the ‘Service Mode’ by pressing ‘VIDEO’ button twice and ‘MENU’ on the Service Commander.
• Select ‘Service’ from the on screen menu display and press ‘Right Arrow’.
• The ‘Service’ menu will appear on the screen.
• Set the ‘Contrast’ to MAX.
• Set the ‘R-Drive’ to 50.
• Adjust the ‘G-Drive’ and the ‘B-Drive’ so that the white balance becomes optimum.
• Press the ‘OK’ button to write the data for each item.
• Set the ‘Contrast’ to MIN.
• Set the ‘R-Cutoff’ to 29.
• Adjust the ‘G-Cutoff’, and the ‘B-Cutoff’ with the left and right buttons on the remote commander so that the white balance becomes optimum.
• Press the ‘OK’ button to write the data for each item.

Programming the Remote Commander for Operation in Service Mode.

1. Press the VCR/TV/DVD button until the TV LED lights.
2. Press and hold the yellow button for approx. 5 seconds until the TV LED flashes quickly.
3. Press 99999. All three LED’s should light.  The remote commander is now set to Service Mode.
4. To return the remote commander to normal operation mode repeat steps 1. And 2. Then press 00000. All three LED’s should light.
5. The remote commander is now set to normal mode.

Setting the TV into Service Mode.

• Program the remote commander for operation in Service Mode as described above.
• Turn on the TV main power switch.
• Press the video standby button on the remote commander twice.  ‘TT ’ will appear in the upper right corner of the screen.  Other status information will also be displayed.
• Press ‘MENU’ on the remote commander to obtain the following menu on the screen.

• Move to the corresponding adjustment item using the up or down arrow buttons on the Remote Commander.
• Press the right arrow button to enter into the required menu item.
• Press the ‘Menu’ button on the Remote Commander to quit the Service Mode when all adjustments have been completed.

After carrying out the service adjustments, to prevent the customer accessing the ‘Service Menu’ switch the TV set OFF and then ON.