Table of Contents
Advertisement
Servicing Notice
Note on main board replacement
Take the following workings when the main board is replaced.
Adjustment data setting
This projector stores "Color shading correction data", "Gamma correction data" and "Ye device data" in the memory
IC (IC1371) on the main board. Those adjustment data have been setup according to the optical characteristics of the
mounted LCD panels preciously in the factory. When replacing the main board, you need to read out the those setting
data stored in the memory IC on the previous main board and write down them into the memory IC on the new main
board. By this way, it enables the projector to reproduce the picture which has properly adjusted color shading cor-
rection, gamma correction. For further details, refer to the operation manual of the software [PROJECTOR SERVICE
TOOL v4.21].
Serial number setting
The data of serial number is stored in the memory IC (IC381) on the main board.
After replacing the main board, perform the work below to restore the serial number.
• Use the serial no. setting tool to write the correct serial no. referring to the serial no. (S/N) printed on the rating label.
For further details, refer to the operation manual of the software [SERIAL NO. SETTING TOOL v1.00].
The projector service tool v.4.21 and serial no. setting tool v1.00 can be downloaded from the projec-
tor service web site.
Model no. setting
The data of projector's model no. is stored in both memory ICs (IC381) on the main board.
After replacing the main board, perform the work below to restore the model number.
1. Enter the service mode.
2. Select the Group "430 ~ 431" and No. "1", change the Data value from "0" to "10". Refer to table below. The Data
value will return to "0" after setting.
3. To check the setting, select each Group and No. "0" and check its value with table below.
How to enter the service mode, or set the Group. No. and Data, refer to the item "Service adjustment menu opera-
tion".
Model no. setting
Model no. set-
Group
ting
Not defined
430
LX1750
431
LX1750 Service Manual
020-000643-01 Rev.1 (01-2014)
No.
Data
✻ (refer t table right)
0
1
0 -> 10
✻ (refer t table right)
0
1
0 -> 10
-57-
Model no. chanking
Data
Model no.
0
Not defined
1
LX1750
Advertisement
Table of Contents
