06TV165R4
KDL-40S2000, KDL-40S2010, KDL-40S2030, KDL-40S2510,
KDL-40S2530, KDL-40V2000, KDL-40V2500, KDL-40W2000
BC
Subject IRIS
Dark Mura Phenomenon at Low Temperature [REVISION 4] 1321
SYMPTOM
Dark Mura phenomenon in the picture at low temperature.
CAUSE
At low temperature the "Inverter" is incapable of turning on certain portions of the backlight.
SOLUTION
To solve this problem, the "Inverter Board" has been modified so that different software versions are required for
each panel type. Proceed as explained below.
1. Check whether the panel has been modified.
* A) The "V" mark on the panel label indicates that the modification has been applied during service.
