Service Modes, Error Codes, and Fault Finding
EN 12
LGE PDP
5.
Z-SUS Board
1.
Check the fuses.
2.
Check input voltages (Va, 5V, and 15V)
3.
Check FPC output diode value.
Figure 5-12 Z-SUS board fuse check
Figure 5-13 Z-SUS board FPC output diode check
5.1.2
Bar Defect (Vertical)
Check each section with following method. If there is a
problem, replace or repair that part. If not go to the next section.
Connector
Check the TCP connector and cables. If not connected well, it
will result in a bar defect and abnormal display behaviour.
Figure 5-14 Connector check (1)
Figure 5-15 Connector check (2)
Checking TCP
Confirm whether the TCP was torn or chopping.
Figure 5-16 TCP torn
Figure 5-17 TCP IC broken
F_15590_075.eps
070705
Va FUSE
Vs
FUSE
5V FUSE
F_15590_077.eps
060705
Normal diode value = 0.4 (forward)
Normal diode value = OL (reverse)
Check here
Bar
F_15590_078.eps
060705
Check here
Off
F_15590_079.eps
060705
TCP
torn
F_15590_080.eps
060705
TCP IC
broken
F_15590_081.eps
060705
