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5.1.4
Bar Defect (Horizontal)
Most horizontal defects can be repaired. In case of adherence
part of the film and rear panel electrode, or panel electrode
open/short, replace the PDP panel.
Connector
If the connector on Y board and Z board are not plugged in well,
it can result in a horizontal bar, because the sustain voltage
Cannot be supplied to panel. So check connectors FPC and
Ydrv-Ydrv first.
Disconnected
Horizontal bar
Figure 5-21 Check FPC connectors
Disconnected
Screen off
Figure 5-22 Check drive connectors
Scan IC Check
Check diode value of the right side part of the output pin.
Normal diode value= 0.6 (forward)
Figure 5-23 Scan IC output diode check
Service Modes, Error Codes, and Fault Finding
F_15590_085.eps
060705
F_15590_086.eps
060705
Normal diode value= OL (reverse)
F_15590_087.eps
060705
LGE PDP 2K5
5.1.5
Line Defect (Horizontal)
FPC Check
In case of one or more horizontal lines, this is probably due to
FPC or panel inside the Control board. Y board is just normal.
FPC electrode open
Figure 5-24 Open FPC electrode / Panel electrode breakdown
Scan IC Check
Check diode value of the right side part of the output pin.
Figure 5-25 Scan IC output diode check
5.
EN 15
Panel electrode
Insulation break down
Horizontal 1 line.
F_15590_089.eps
070705
F_15590_091.eps
290605
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