Tuner

*Option Byte Data for these models was not available at manual release. Refer to future updates to this manual regarding these models.

Note: Described alignments are only necessary when the NVM (part reference number7602) is replaced.

Figure: Tuner Menu

This adjustment is auto-aligned. Therefore, no action is required.

1.Connect the RF output of a video pattern generator to the antenna input.

2.Input a color bar test pattern to the television set.

3.Set the amplitude of the video pattern generator to 10 mV and set the frequency to 61.25 MHz (channel 3).

4.Connect a DC multimeter to pin 1 of the tuner(item 1000 on the main chassis).

5.Enter SDAM:

Press the following key sequence on the remote control transmitter:

0-6-2-5-9-6-MENUDo not allow the display to time out between entries while keying the sequence.

6.Use the MENU UP/DOWN keys to highlight the TUNER sub menu.

7.Press the MENU LEFT/RIGHT keys to enter the TUNER sub menu.

8.Use the MENU UP/DOWN keys to select AGC.

9.Use the MENU LEFT/RIGHT keys to adjust the AGC value (default value is 27) until the voltage at pin 1 of the tuner lies between 3.8V and 2.3V.