Polaroid ID-3000 Repair Manual page 181

Polaroid ID3000 Service Manual
IF THE ABOVE ALIGNMENT IS NOT DISPLAYED, DO THE FOLLOWING:
1. Adjust R7 on the Monitor Board to fine-tune horizontal centering (see Figure 4-3).
2. Adjust R27 on the Monitor Board to fine-tune vertical centering (Figure 4-3).
3. Adjust R48 on the Monitor Board to obtain proper vertical height (Figure 4-3).
4. If the cross hairs do not coincide with the gauge, return the Vertical Centering pot
(R27 in Figure 4-3) and Horizontal Centering pot (R7) to their nominal (center)
positions.
5. Cut the hot melt securing the two centering rings on the yoke of the CRT
(see Figure 4-4).
6. Adjust the centering rings to obtain proper vertical and horizontal centering. When
centering is correct, secure the centering rings with hot melt adhesive.
7. Adjust R7 on the Monitor Board to fine-tune horizontal centering (see Figure 4-3).
8. Adjust R27 on the Monitor Board to fine-tune vertical centering (Figure 4-3).
9. Adjust R48 on the Monitor Board to obtain proper vertical height (Figure 4-3).
10. Adjust R14 to obtain proper horizontal width (Figure 4-3).
11. Adjust L11 to obtain proper horizontal linearity (Figure 4-3).
IF THE IMAGE IS STILL TILTED, MECHANICALLY ADJUST THE CRT AS
FOLLOWS:
1. Loosen (do not remove) the four screws holding the CRT mount
2. Bring up the tennis court pattern by selecting DP.GTI from the Gentest menu.
3. Carefully move the CRT while observing the pattern on the gauge.
4. When the pattern meets the conditions shown in Figure 4-5, tighten the mounting
screws and replace the CI-5000 cover.
5. After tightening the mounting screws, recheck the image alignment with the template
(refer to Figure 4-5).
4-9
Calibration Procedures