Panasonic TH-42PX50U Replacement Procedure page 51

PDP White Balance Adjustment (Step 9)
Reapply the 20 IRE pattern and 80 IRE
patterns and verify that the drive and cutoff
settings match the settings in Table 1,
Color Temperature
Cool (High)
Normal (Mid)
Warm (Low)
Page 34
adjust as necessary.
Table 1
0.276
0.288
0.313
X Y
0.276
0.296
0.329