Manual Hue Phase Adjustment Procedures for Flyers

Product: Flyer

Platforms: 2000 3000 3000T 4000 4000T

These programs require the following hardware:

1. A vectorscope on internal sync at 75% bars connected to the flyer MAIN OUTPUT BNC with 75 ohm termination.

2. An NTSC Signal Generator on 75% SMPTE bars connected to the Toaster's VID 1 BNC input. Input termination may be verified by pressing the F10 function key to see the check at the input 1 box.

3. An AUTOHUED Toaster.

4. A Flyer with video drives on SCSI0 (FlyerA or FA0) and SCSI1 (FlyerB or FB0).

5. An Amiga 2000 or 4000 loaded with 4.1 Flyer software.

These programs require the following clip and framestore:

1. The "107.FS.IVectorPattern" framestore which comes with the ManPhase.lha distribution should be put into the NewTek/Framestore drawer by the install procedure which is part of the distribution.

>> Load the framestore 107.FS.IVectorPattern into DV1 of the Toaster.<<

2. The "wd2-bars" video clip must be recorded onto SCSI0 (FlyerA or FA0) and SCSI1 (FlyerB or FB0) of the Flyer system.


HUEPA and HUEPB

These programs perform manual Play Hue Phase adjustment, with HUEPA for channel A and HUEPB for channel B.

1. Load the Toaster-Flyer software and do a FlyerCalibrate so the Flyer will pick an aligner edge.

2. Double-click on the Workbench icon for HUEPA. A window appears with 4 sliders.

3. The top slider, POSITION, should be set to -35.

4. Put the remaining DEGREE sliders to the far left.

5. Move the CLK(22.5 degree) slider to the right until the vectorscope display's color points are at the nearest counter-clockwise (CCW) position from the center of the small boxes on the vectorscope. Red and magenta would be left of the small boxes. If it is possible to set the color points in the exact center of the small boxes do so and go to step 8. If when setting the CLK(22.5 degree) slider, the vector display is at or past 90 degrees CW (clockwise), the next click may make it jump past the small boxes. In this case, go to step 6 now.

6. Move the COARSE(4 degree) slider to the right until the vectorscope display's color points are at the nearest counter-clockwise (CCW) position from the center of the small boxes on the vectorscope. Red and magenta would be left of the small boxes. If it is possible to set the color points in the exact center of the small boxes, do so.

7. Move the FINE(1 degree) slider to the right until the vector display is nearest to the center of the small boxes.

8. Check the phase linearity by moving the COARSE(4 degree) slider left and right 2 clicks each way. If the vector pattern jumps more than the selected amount (like 45, 60, or 90 degrees) start the procedure over and during step 2 try using the COARSE (4 degree) slider one click to the right while adjusting the CLK(22.5 degree) slider. As in step 7, use the FINE(1 degree) to make the final adjustment.

9. In cases which do not adjust with linearity, rerun FlyerCalibrate to reselect the aligner edge. If this fails to obtain phase linearity as the COARSE(4 degree) slider is moved back and forth 2 clicks (as described in step 8) it may be necessary to accept a linearity of one click each way. If phase linearity problems persist see the note at the end of this file. You may need to contact NewTek Tech support for a hardware repair.

10. Repeat HUEPA quickly as settings may drift as board temperature stablizes. Channel B may look like it has proper color phase during the clip playback section of HUEPA, but it tends to track channel A unless it is way off. Be sure to run HUEPB to check and set channel B as shown in step 11.

11. Perform steps 2 through 10 using the HUEPB program to set video channel B's play color phase.

12. If not going on to HUER for record phase adjustment, and if needing to turn the system off be sure to exit the Flyer software from the Editor/Switcher using SHUTDOWN in the VIEWS menu to prevent loss of settings.


HUER

The record hue phase adjustment is set with HUER by double-clicking on the HUER icon. A window appears with 4 sliders.

1. The 107.FS.IVectorPattern framestore should appear on the video monitor. It has a large orange stripe down the middle of the monitor. If it does not appear, load it into DV1 from the NewTek/Framestore drawer. You may need to use Left-AMIGA M to switch screens to get to the Switcher/Editor and back to HUER.

2. The top slider is POSITION and should be set to 22 on a good Flyer.

3. Put the Clk(22.5 degree) slider fully left, the Coarse(4 degree) slider fully right and the Fine(1 degree) slider fully left.

(NOTE: This is different from HUEPA and HUEPB).

4. The Clk(22.5 degree) slider has 4 positions. The object is to try each one to find a "sweet spot" by moving the Coarse(4 degree) slider from right to left to locate a linear phase region around 0 degrees as displayed near the bottom of the Record Phase Test window. The best regions will be linear for plus and minus at least 8 to 10 degrees either side of zero. The Coarse(4 degree) slider should change the displayed degrees by roughly 4 degrees for each position.

5. If the displayed degrees jump well past the expected 4 degrees (like 45, 60, or 90 degrees), you must try the next Clk(22.5 degree) slider position to the right and repeat step 4. Try each of the Clk(22.5 degree) positions until a stable region is located by scanning it with the Coarse(4 degree) slider.

6. If a region is found to be almost but not quite linear for 8 to 10 degrees either side of zero, the Fine(1 degree) slider may be used to shift the region slightly to one side or the other.

7. Finally, the Fine(1 degree) slider is used to bring the displayed degrees nearest to zero.

8. After using step 7, recheck the region's phase linearity by scanning it with the Coarse(4 degree) slider to see that it is stable up and down about 8 to 10 degrees, and leave it set nearest to 0 degrees. If the displayed phase jumps about 45, or 60 degrees try other positions of the 1 degree slider and then reset the Coarse(4 degree) slider, and scan up and down about 8 to 10 degrees. This can affect the linearity of the region around 0 degrees.

9. If still no linear region is found, rerun FlyerCalibrate and try again. This will also strip the HUEPA and HUEPB settings, so rerun them before doing HUER. If no linear region is found after about 4 FlyerCalibrates and HUERs, try the note below. You may need to contact the NewTek Tech department for hardware repair.

10. Click the close gadget in the top left of the Record Phase Test window to check the results. Although channel A and channel B playing wd2.bars should play right in the small vectorscope boxes if properly adjusted, the third clip of all three color phase programs will only look as phase accurate as the incoming signal from your signal generator. Any observed shift in the incoming signal during recording should be matched during the playback of the third clip which is the RECORDED clip for HUER. (You can distinguish the incoming pattern out of the signal generator by the STRAIGHT lines connecting the color dots. Digital playback of color bars shows a bending or skewing between color dots during retrace. This is normal and does not indicate a Flyer problem).

11. To shut off the AMIGA, exit from the Editor/Switcher using SHUTDOWN in the VIEWS menu of the Editor to save your settings.

NOTE: Video cable lengths and terminating impedances DO affect phase adjustment in video systems. It is possible to change the results of the above adjustments by changing video cable lengths or terminating video devices on the main video output. You may verify your terminating impedance by measuring it directly with a digital ohmmeter at the BNC cable connected to the Flyer Main Output. Disconnect the cable from the Flyer Main Output. With the meter set to Ohms, touch the black lead to the shell of the cable’s BNC connector and touch the red lead to the pin in the center of the cable’s BNC connector. The reading should be VERY close to 75 ohms.