ViewSonic PJ452 Service Manual - Page 27

Replacing the Lamp When the indicators or a message prompts you to replace the lamp, replace the lamp as soon as possible. 1. Turn the projector off, and unplug the power cord. Allow the lamp to cool for at least 45 minutes. 2. Prepare a new lamp (the lamp type number = DT00702 or RCL-004). If the projector is mounted on the ceiling, or if the lamp has broken, also ask the dealer to replace the lamp. In the case of replacement by yourself, 3. After making sure that the projector has cooled adequately, slowly turn over the projector, so that the bottom is facing up. 4. Please loosen the screw (marked by arrow). Then, unhook the claws of the lamp cover and remove the lamp cover. 5. Loosen the 2 screws (marked by arrow) of the lamp, and slowly pick up the lamp by the handles. 6. Insert the new lamp, and retighten firmly two screws that are loosened in the previous process to lock it in place. 7. Interlocking the 2 tabs of the lamp cover to the projector, position the lamp cover on the projector, and push the center point of two claws to fix the lamp cover. Then retighten firmly the screw of the lamp cpver. 8. Slowly turn the projector so that the top is facing up. 9. Turn the projector on, and reset the lamp time using the LAMP TIME function of OPTION menu. (1) Select the item of LAMP TIME in OPTION of Advance menu (2) Press and hold RESET button of the remote control or [ ] button of the keypad for 3 seconds. LAMP TIME reset window will appear. (3) Choose RESET using [ ] button. NOTE • When the lamp has been replaced after the message of "THE POWER WILL TURN OFF AFTER 0hr ." is displayed, complete the following operation within 10 minutes of switching power on. Incorrectly resetting of the lamp timer (resetting without replacement, or neglect of resetting after replacement) will result in incorrect message functions. ViewSonic Corporation Confidential - Do Not Copy PJ452 24