Blanking Width
1. Tune on NTS Retma pattern.
2. Press Screen mode on the remote control, and then slelct Normal mode.
3. To be symmetrical the screen, adjust Blanking Width with rotating the variable volume RU19 on the Blanking Board.
Y Level Adjustment (to DTV Decoder module)
1. Tune on SMPTE Color Bar signal.
2. Connect a scope probe to pin 9 of PW06V.
3. Adjust RV900 such as the following figure so that the amplitude of Y level may be 0.7Vp-p.