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Safety Instructions
SAFETY PRECAUTIONS
WARNING:
The chassis of this projector is isolated (COLD) from AC line by using
the converter transformer. Primary side of the converter and lamp power
supply unit circuit is connected to the AC line and it is hot, which hot cir-
cuit is identified with the line (
tinued product safety and protection of personnel injury, servicing
should be made with qualified personnel.
The following precautions must be observed.
1: An isolation transformer should be connected in the power line between the projector and the AC line
before any service is performed on the projector.
2: Comply with all caution and safety-related notes provided on the cabinet back, cabinet bottom, inside the
cabinet or on the chassis.
3: When replacing a chassis in the cabinet, always be certain that all the protective devices are installed
properly, such as, control knobs, adjustment covers or shields, barriers, etc.
DO NOT OPERATE THIS PROJECTOR WITHOUT THE PROTECTIVE SHIELD IN POSITION AND PROP-
ERLY SECURED.
4: Before replacing the cabinet cover, thoroughly inspect the inside of the cabinet to see that no stray parts
or tools have been left inside.
Before returning any projector to the customer, the service personnel must be sure it is completely safe to
operate without danger of electric shock.
PRODUCT SAFETY NOTICE
Product safety should be considered when a component replacement is made in any area of the projector.
Components indicated by mark
safety can be of special significance. It is, therefore, particularly recommended that the replacement of the
parts must be made by exactly the same parts.
Caution:
The parts and screws should be placed exactly the same position as the original otherwise it may cause lose of
performance and product safety.
The wiring method of the leads should be returned exactly the same state as the original otherwise it may cause
lose of performance and product safety.
) in the schematic diagram. For con-
in the parts list and the schematic diagram designate components in which
- 3 -
Caution
"HOT CIRCUIT"
Lamp Unit
Lamp ballast Unit
Power supply Unit
P.F.C. unit
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