Eiki LC-X71 LC-X71L - Manual (Page 24)

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To enter the service mode
To enter the “Service Mode”, press and hold the MENU and IMAGE button on the projector at the same time for
more than 3 seconds, or press and hold the MENU button on the remote control unit for more than 20 seconds.
The service menu appears on the screen as follows.
To adjust service data
Select the adjustment group no. by pressing the MENU or IMAGE button, and select the adjustment item no. by
pressing the pointer UP or DOWN button, and change the data value by pressing the VOLUME – or VOLUME +
button. Refer to the “Service Adjustment Data Table” for further description of adjustment group no., item no. and
data value.
To exit the service mode
To exit the service mode, press the POWER ON-OFF button on the projector or remote control unit.
Service Adjustment Menu Operation
IC802 on the main board stores the data for the serv-
ice adjustments, and should not be replaced except for
the case of defective device.
If replaced, it should be performed the re-adjustments
following to the “Electrical Adjustments”.
The data of lamp replacement monitor timer is stored
in the IC802.
Please note that the lamp replace counter is reset
when the memory IC (IC802) is replaced.
(Lamp replace counter can not be set to the previous
value.)
● Caution of Main Board replacement (in the case
IC802 is not defective)
When the main board is replaced, IC802 should be
replaced with the one on previous main board. After
replacement, it should be required to perform the re-
adjustments following to the “Electrical Adjustments”.
In this case, the lamp replace counter can be kept the
value as before.
● Caution to memory IC replacement
When IC802 is replaced with new one, the CPU writes
down the default data of the service adjustments to the
replaced IC, refer to the service adjustment table. As
these data are not the same data as factory shipped
data, it should be required to perform the re-adjust-
ments following to the “Electrical Adjustments”.
Please note that the lamp replace counter is reset.
Before IC802 is replaced with new one, take a memo
for the value of group/item no.
"290 - 0" of the service
adjustment data table, and after replacing IC802
change the value of group/item no.
"290 - 1" to the
same data with the memo.
● Memory IC Replacement
Electrical Adjustments
Service Mode
Input Input 1
Group No. Data
0 0
280
1.00
20
Ver
Group No. Data value Item No.