Eiki LC-NB3E - Manual (Page 25)

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■ Electrical Adjustments
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. The service menu appears on the screen as follows.
To adjust service data
Select the adjustment group no. by pressing the MENU 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
IC1801 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 IC1801.
Please note that the lamp replace counter is reset
when the memory IC (IC1801) is replaced.
(Lamp replace counter can not be set to the previous
value.)
● Caution to memory IC replacement
When IC1801 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-
adjustments following to the “Electrical Adjustments”.
Please note that the lamp replace counter is reset.
● Caution of Main Board replacement (in the case
IC1801 is not defective)
When the main board is replaced, IC1801 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.
● Memory IC Replacement
ON ON -- -- OFF OFF
LA MP
RE PLA CE
WARNIN G
TEMP.
READY
LAM P
INPUT IMAGE MENU
VOLUME – VOLUME +
SELECT ZOOM FOCUS
Service Mode
Input Video
Group No. Data
0 0 32
Ver. 1 .00
Group No. Data value Item No.