Optoma HD8600 User Manual page 50

Appendices
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Lamp Replacing Procedure:
1. Switch off the power to the projector by pressing the Power button.
2. Allow the projector to cool down at least 30 minutes. 
3. Disconnect the power cord.
4. Unlock the lamp cover. 
5. Pull up and remove the cover. 
6. Use a screwdriver to remove the screws from the lamp module. 
7. Pull out the lamp module. 
To replace the lamp module, reverse the previous steps.
8. Turn on the projector and do "Lamp Reset" after the lamp module
is replaced.
Lamp Reset: (i)Press "Menu" -> (ii)Select "System" -> (iii)Select
"Lamp Settings" ->(iv)Select "Lamp Reset" -> (v)Select "Yes".