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INF - 15
5. 2. 2. Repair
1. Since this projector is very strong light output, when checking the projection screen, please UV protection glasses
and select to "single" lamp mode. If the projection distance is short, please pay particular attention.
2. When electrifying the projector for the check and adjustment with top case taken off, the strong light emits from the
lighting cover and its around. Please take the use of UV protection glasses and means of the shading.
3. While the fan is working, do not pull the plug out nor disconnect the breaker.
* When the monitor of power supply lamp turns red and the fan stops, disconnecting can be done.
4. Make sure to turn off the power before repair.
* When replacing the print board, the internal electrical parts can be broken by the static electricity of clothes or
human body. Be careful of static electricity and wear the anti-static electricity globes.
5. After finishing the repair, check whether it works properly or not.
Check the image with 10 steps or gray scales that can show the gradation and perform self-check.
5. 2. 3. Replacement of A-P.C.Board
the section 3. "Adjustment".
* Down load the adjustment software from our Projector service web site.
5. 2. 4 Replacement of WL-P.C.Board
When WL-P.C.Board is replaced, the MAC address of wired LAN will be changed.
Explain it to the customers in advance.
Explain it to the customers in advance.
5. 3. Replacement of consumable parts
Attention:
* When replacing the consumable parts, please make sure that the main power is OFF and power cable is disconnected.
* Do not replace the lamp unit when it is hot. (Wait at lease one hour after use.)
5. 3. 1. When to replace the lamp unit
1. The lamp unit is a consumable component. Since its brightness gradually decreases over time, it is necessary
to replace it regularly. The estimated duration before replacement is 2 500 hours.
However, this may be shortened depending on individual lamp characteristics, usage conditions, and the
installation environment. Therefore, it is strongly recommended that a replacement lamp unit be prepared.
2. To predict when to replace the lamp, check the lamp cumulative operating hours displayed in lamp1-2 of "STATUS".
3. The unit can damage the projector if it has not been replaced after 2 500 hours of usage.
Thus, the lamp automatically turns off after approximately ten minutes.
If the cumulative operating time of all lamp unit bulbs exceeds 2 500 hours, the power will be switch off after
about 10 minutes.
If replacing A-P.C.Board (assembly), read the ROM data from the old P.C.Board and write it in the new one according to
Note: 2 500 hours is not warranty hours, but guideline for replacement.
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