Electrical Adjustments; Service Adjustment Menu Operation; Memory Ic (Ic30, Ic80) Replacement - Sanyo PLC-XF70 Service Manual

Electrical Adjustments

Service Adjustment Menu Operation

to enter the service mode
To enter the "Service Mode", press and hold the
menu appears on the screen as follows.
to adjust service data
Select the adjustment group no. by pressing the
select the adjustment item no. by pressing the pointer
W or X 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
Service Mode
Input Video
Group No. Data
0 0
Ver. R 1.00
Group No. Item No.
Memory IC (IC302, IC802) Replacement
Memory ICs on the main board stores the data for the
service adjustments, and should not be replaced ex-
cept 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 Ics replacement
When memory ICs are replaced with new one, the CPU
writes down the default data of the service adjustments
to the replaced ICs as the mentioned on the service ad-
justment table. As these data are not the same data as
MeNu
MeNu button
oN/StANd-BY button
32
Data value
SeLect button
and for more than 3 seconds. The service
(increase) or
U
button
or V
, and change the data value by pressing the
.
factory shipped data, it should be required to perform
the re-adjustments following to the "Electrical Adjust-
ments".
Please note that in this case the lamp replace counter
will be reset.
● caution of Main Board replacement (in the case
memory Ics are not defective)
When the main board is replaced, memory ICs should
be replaced with the one on previous main board. After
replacement, it should be required to perform the re-ad-
justments following to the "Electrical Adjustments".
In this case, the value of lamp replace counter can be
kept as before.
-64-
SeLect button
(decrease), and