JVC Model 200 service manual Maintenance Removal/Replacement

Chapter 4---Maintenance (Removal/Replacement)

WARNING!!! Various procedures in this chapter involve the removal and replacement of system subassemblies. Ensure that the circuit breaker on the rear panel of the projector is turned off and the AC power plug is removed from the AC outlet PRIOR to attempting any of these procedures.

When performing any maintenance procedures in this chapter, follow the guidelines below:

Left/Right Orientation: When left and right is mentioned in this chapter, it is with reference to standing at the rear of the projector, facing the screen.

Connectors on subassemblies and PCBs have tabs that must be released first before pulling on the connector. The proper procedure is to push slightly IN on the connector, then squeeze the tab, then pull the connector out.

Power off: After turning power off with the remote, wait until the Arc Lamp cooling fans have stopped running, then toggle the projector circuit breaker on the rear panel to OFF and disconnect the power cord (allow a discharge time of at least a minute for the high voltage to bleed off before removing the power plug).

NOTE: While performing any maintenance procedures, check the prism diaphragm for dryness, crazing, cracking, or possible leaking. If any problems are observed, call HJT.

When references are made to assemblies or components in this chapter, refer to Figures 4-1 and 4-11 for locations.

4-2 Model 200 Service Manual