JVC 250 service manual Loosen the two hex nuts, using a 4-mm hex-head wrench

Chapter 4---Optical

CAUTION! To avoid damaging the connector, grasp the ILA® assembly itself, not the connector at the top.

Figure 4-10ILA® Assembly top view. The overlap screws shown are under the ILA® . They are visible only after the ILA® assembly is removed.

13.If the overlap is at the top or bottom, be sure the projector is level. Slide the spring clip (see Figure 4-10) at the top of the ILA® assembly back.

14.Loosen the two hex nuts, using a 4-mm hex-head wrench.

WARNING!!! Always wear an ANSI/ASTM 10,000 volt rated safety glove when working around CRTs due to the High Voltage present there.

15.Slide the ILA® /Relay Lens/CRT Assembly back and remove the ILA® assembly (it will slide out with some resistance).

16.There are two adjustment screws at the bottom of the ILA® assembly that move the ILA® up or down. Turn these screws in or out very slightly to allow the ILA® to seat lower or higher, as necessary.

17.Reinstall the ILA® assembly, slide the ILA® /Relay Lens/CRT Assembly forward and replace the spring clip.

18.Repeat Step 4 as necessary.

4-16 Model 250 Service Manual