Electrical Adjustments; Service Adjustment Menu Operation - Sanyo PLC-XU50 Service Manual

■ Electrical Adjustments

● Service Adjustment Menu Operation
To enter the service mode
To enter the "Service Mode", press and hold the MENU and INPUT buttons 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 (+) or KEYSTONE (-) 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 Mode
Input Video
Group No. Data
0 0
Ver. 1
Group No. Item No.
● Memory IC Replacement
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, the re-adjustments are required following to
the "Electrical Adjustments".
The data of lamp replacement counter is stored in the
IC1801.
Please note that the lamp replace counter will be reset
when the memory IC (IC1801) is replaced.
(Lamp replace counter cannot 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 as the mentioned on the service
adjustment table. As these data are not the same data
as factory shipped data, it should be required to per-
32
.00
Data value
ON - OFF
INPUT
KEYSTONE
SELECT
MENU
form the re-adjustments following to the "Electrical
Adjustments".
Please note that in this case the lamp replace counter
will be 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.
-21-
POWER
WARNING
LAMP
REPLACE