LG 50PC1DR - - 50" Plasma TV Troubleshooting Manual page 71

Vset-UP too low
Vset-UP too High
Plasma Display Panel Troubleshooting - 2007
DUAL SCAN PDP 50PX2
The center begins to wash out and ark due to Vset_UP
Peeking too late and alters the start of the Vset_DN phase.
Very little alteration to the picture, the wave form indicates a
distorted Vset_UP. The peek widens due to the Vset_UP
peeking too quickly.
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