Sanyo PLV-Z800 Service Manual page 15

How to check lamp used time
The LAMP REPLACE indicator will light when the total
lamp used time reaches ,000 hours. This is to indicate
that lamp replacement is required.
The total lamp used time is calculated by using the below
expression;
Total lamp used time = teco + tnormal x (1.5)
teco: used time in Eco mode
tnormal: used time in Normal/Auto1/Auto2 mode
You can check the lamp counter following procedure.
1 Press and hold the PoWer oN/StANd-BY button on
the projector or the remote control unit for more than
20 seconds.
2 The projector used time and lamp used time will be dis-
played on the screen briefly.
You can also check "Lamp Time" in the "Information
Menu". This value is actual lamp used time.
"Lamp Time" = teco + tnormal
Lamp counter display
Counter
Projector
Lamp
Corresponding value
Information Menu
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Lamp Replacement
Projector used time
475H
Normal 100H
Eco 375H
525H
total lamp used time
total lamp used time (actual)
475