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SC3127 N321 213 18 2 64 0 - -
SC3132 N321 223 222 43 40 0 - -
SC3132 N331 223 222 43 40 0 - -
* Option Byte Data for these models was not available at manual release.
Refer to future updates to this manual regarding these models.
Tuner
Note: Described alignments are only necessary when the NVM (part reference
number7602) is replaced.
Figure: Tuner Menu
IF PLL
This adjustment is auto-aligned. Therefore, no action is required.
AGC (AGC take over point)
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-MENU Do 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.