Hitachi CP-S420WA, Service Manual

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CP-S420WA(C7S2) / CP-X430WA(C7X2)
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CP-S420WA(C7S2) / CP-X430WA(C7X2)
Do not disassemble the unit
because replacement of separate
parts is not possible.
For repairs of the product, please
contact our distributor.
DISTRIBUTOR HITACHI
Replacement of G Panel Reconditioning
Return
G Panel
6-4 Before Replacing the LCD / Lens Prism
You should not replace separately the parts of the liquid crystal LCD / Lens Prism because it works properly only
when used together. Therefore, regarding these parts, you can either replace part, LCD / Lens Prism assembly,
or send the whole unit LCD / Lens Prism assembly back to HITACHI, where we will replace the malfunctioning
part, recondition the device and send it back to you. In that case please contact our distributor.
6-5 Air Filter
Cleaning the Air filter
The air filter should be cleaned as described below at intervals of approximately 100 hours.
1. Switch the projector power supply OFF, and remove the power cord from the power outlet.
2. Clean the air filter with a vacuum cleaner.
Replacing the Air filter
Replace the air filter if contamination cannot be removed, or if it is damaged.
1. Remove the filter cover.
2. Remove the old filter.
3. Set the new filter and filter cover.
CAUTION
Switch power OFF and remove the power cord from the power outlet before beginning mainte-
nance work. Please read the separate “SAFETY INSTRUCTIONS” thoroughly to ensure that
maintenance is performed correctly.
Replace the air filter if contamination cannot be removed, or if it is damaged. Contact your
dealer in such case.(Option Air filter assembly : Parts No. NJ06131)
Do not use the equipment with the air filter removed.
When the air filter is clogged with dust etc. the power supply is switched OFF automatically to
prevent the temperature rising inside the projector.