Sanyo PLC-XL40 Service Manual

Also see for PLC-XL40: Owner's manual

Contents

-3-Safety InstructionsWARNING:The chassis of this projector is isolated (COLD) from AC line by using the converter transformer. Primary sideof the converter and lamp power supply unit circuit is connected to the AC line and it is hot, which hot circuit isidentified with the line ( ) in the schematic diagram. For continued product safety and protection of person-nel injury, servicing should be made with qualified personnel.The following precautions must be observed.SAFETY PRECAUTIONS1: An isolation transformer should be connected inthe power line between the projector and the ACline before any service is performed on the projec-tor.: Comply with all caution and safety-related notesprovided on the cabinet back, cabinet bottom, insidethe cabinet or on the chassis.3: When replacing a chassis in the cabinet, alwaysbe certain that all the protective devices areinstalled properly, such as, control knobs, adjust-ment covers or shields, barriers, etc.DO NOT OPERATE THIS PROJECTOR WITHOUTTHE PROTECTIVE SHIELD IN POSITION AND PROPERLY SECURED.4: Before replacing the cabinet cover, thoroughlyinspect the inside of the cabinet to see that no strayparts or tools have been left inside.Before returning any projector to the customer, theservice personnel must be sure it is completely safeto operate without danger of electric shock.SERVICE PERSONNEL WARNINGEye damage may result from directly viewing the light produced by the Lamp used in this equipment. Alwaysturn off Lamp before opening cover. The Ultraviolet radiation eye protection required during this servicing.Never turn the power on without the lamp to avoid electric-shock or damage of the devices since the stabilizergenerates high voltages (15kV - 5kV) at its starts.Since the lamp is very high temperature during units operation replacement of the lamp should be done at least45 minutes after the power has been turned off, to allow the lamp cool-off.PRODUCT SAFETY NOTICEProduct safety should be considered when a component replacement is made in any area of the projector.Components indicated by mark ! in the parts list and the schematic diagram designate components in whichsafety can be of special significance. It is, therefore, particularly recommended that the replacement of thereparts must be made by exactly the same parts.