Read Sony KDE-V42A12U / KE-V42A10E Service Manual online
◈ Defext: F/White low discharge
◈ Defect: Weak discharge
■Symptom : Low discharge caused by unstable cells
occurring at full white pattern if high
(60 degree) or normal temparature.
■ Cause
① Panel : MgO source / dielectric thickness
cell pitch/phosphor
② Circuit : drive waveform/ voltage condition
■Symptom : Normal discharge but cells appear darker due to
weak light emission occurring mainly at low
(5 degree) Full white/Red/Green/Blue pattern
or gradation pattern
■ Cause
① Panel : MgO deposition count and thinckness /
aging condition
② Circuit : drive waveform/ voltage condition
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