promethean PRM-20, Руководство по обслуживанию

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to enter the service mode
To enter the “ Service Mode”, press and hold the MeNu button on the remote control for more than 0 seconds.
The service menu appears on the screen as follows.
to adjust service data
Select the adjustment group no. by pressing the MeNu button (increase) or SeLect button (decrease) on
the remote control, and select the adjustment item no. by pressing the pointer
e
or
d
button , and change the
data value by pressing the
7
or
8
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 oN-oFF button on the remote control.
Service Adjustment Menu operation
Memory IC on the main board stores the data for
the service 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
Memory IC.
Please note that the lamp replace counter will be
reset when the memory IC is replaced.
(Lamp replace counter cannot be set to the previous
value.)
●
caution to memory Ic replacement
When memory IC 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 perform 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
memory Ic is not defective)
When the main board is replaced, memory IC should
be replaced with the one on previous main board.
After replacement, it should be required to per-
form the re-adjustments following to the “ Electrical
Adjustments”.
In this case, the lamp replace counter can be kept the
value as before.
Memory Ic (Ic1391) replacement
Service Mode
Input
Video
Group No. Data
49 1 +1
Ver.
R 0.00 KM5AC
Data value Item No.
electrical Adjustments
Group No.