Tip & How-To about Sharp AQUOS LC90LE745U 90 3D 1080p LED-LCD TV - 16:9 - HDTV 1080p - 1
Main unit supplied as service unit was adjusted on some item.
However, W/B adj is not finished because it needs to be done by final set condition. So the main unit is in the adjustment condition when it is supplied and K mark is shown up in display when you use it. After finishing Factory setting, K -mark disappear so please do it as following ADJUSTMENT
The adjustment values are set to the optimum conditions at the factory before shipping. If a value should become improper or an adjustment is required due to part replacement, make an adjustment according to the following procedure.
1. After replacement of any PWB unit and/or IC for repair, please note the following.
# When replacing the following units, make sure to prepare the new units loaded with updated software.
MAIN Unit: DKEYMF953FMJ6
# When replacing the LCD control PWB, perform the VCOM adjustment.
2. Upgrading of each microprocessor software
CAUTION: Never "POWER OFF" the unit when software upgrade is ongoing.
Otherwise the system may be damaged beyond recovery.
If you wish to get some details; check the site linked here.
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