LG 42PW350 - Z-SUS Waveform; Z-SUS Waveform Analysis

The Z-SUS (in combination with the Y-SUS) generates a SUSTAIN Signal and an ERASE PULSE
for
g
eneratin
g
SUSTAIN and DISCHARGE in the Panel.
Z-SUS Waveform
gg
This waveform is supplied to the Z-SUB through P3 and P4 and then to the panel through two
FPC (Flexible Printed Circuit) connections P201 and P202.
Reset
Y Drive
Wf
577V p/p
Oscilloscope Connection Point.
J17 to check Z Output waveform.
Right Hand Side Center.
ZDi
W
ave
f
orm
Right
Hand
Side
Center.
Vzb voltage *125V ± 1V (*See Your Label)
Z
D
r
i
ve
Waveform
(Vzb) Z Bias VR1 manipulates the
offset of this waveform segment.
230V p/p
100V
p
er/div 100uSec
TIP: The Z-Bias (VZB) Adjustment is a DC level adjustment.
This is only to show the effects of Z-Bias on the waveform.
p
TIP: To help lock the scope when capturing the Z-SUS Waveform, us the
VS DA TP on the Control Board for an External Clock
June 2011 42PW350 Plasma
75
This Waveform is just for reference to observe the effects of Zbz adjustment
VS
_
DA
TP
on
the
Control
Board
for
an
External
Clock
.