JVC 330 Inverted Vertical Jumpers, J300 J301 J500 J501, J200 J201 J600 J400, J601, J401, J700

Chapter 3---Service Adjustments

4.Pull out the Horizontal Deflection board and verify that the horizontal scan jumper is properly inserted for front (J500) or rear (J501) projection, depending on your application (refer to Figure 3-6 and Table 3-1). Change jumper if necessary.

5.Replace the card cage cover.

6.Replace the rear projector cover.

Inverted Vertical Jumpers

The Vertical Invert jumpers invert the image vertically for use in some situations that use mirrors or ceiling projections. Figure 3-7 illustrates the location of the jumpers on the Vertical Deflection Board (the fourth board from the rear of the projector). The Model 330, 340SC and 370SC Projectors are shipped in the normal vertical projection position with vertical jumpers in J200, J300 and J400 and convergence jumpers in J500, J600, and J700. For other orientations, change the jumpers in accordance with Table 3-1.

NOTE: Do not turn projector upside down or at 90º!

J300

J301

J500 J501

J200

J201

J600 J400

J601 J401 J700 J701

Figure 3-8Vertical Scan Jumpers on the Vertical Deflection Board.

To change jumpers on the Vertical Deflection Board:

1.Turn power off at the projector and wait about five (5) minutes for the arc lamp to cool.

2.Remove the rear cover from the projector.

3.Remove the cover from the card cage.

Model 330, 340SC, 370SC Service Manual 3-15