Sanyo PLV-55WHD1, Service Manual

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WARNING:
The chassis of this LCD projection TV 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 circuit
is identified with the line ( ) in the schematic diagram. For continued product safety and protection of per-
sonnel injury, servicing should be made with qualified personnel.
The following precautions must be observed.
SAFETY PRECAUTIONS
1: An isolation transformer should be connected in the power line between the LCD projection TV and the
AC line before any service is performed on the LCD projection TV.
2: Comply with all caution and safety-related notes provided on the cabinet top, 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 LCD projection TV WITHOUT THE PROTECTIVE SHIELD IN POSITION AND
PROPERLY SECURED.
4: Before replacing the cabinet, thoroughly inspect the inside of the cabinet to see that no stray parts or
tools have been left inside.
Before returning any LCD projection TV 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 LCD projec-
tion TV. Components indicated by mark in the parts list and the schematic diagram designate components
in which 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.
SERVICE PERSONNEL WARNING
Eye damage may result from directly viewing the light produced by the Lamp used in this equipment. Always
turn off Lamp before opening cover. The Ultraviolet radiation eye protection is required during this servicing.
Never turn the power on without the lamp to avoid electric-shock or damage of the devices since the stabilizer
generates high voltages at its starts.
Since the lamp is very high temperature during units operation. Replacement of the lamp should be done at
least 30 minutes after the power has been turned off, to allow the lamp cool-off.
CAUTION
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
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Safety Instructions