TROUBLESHOOTING
Plasma Training
56
Troubleshooting
TROUBLESHOOTHING THE COF ICS
COF is Chip On Film. If any of the tests indicate the junction is shorted or leaking, the adjacent COF
IC is defective. As a result the PDP panel will have to be replaced. Each resistor is a 10.2 - 10.8 ohm
resistor.
DVM set to Diode test
DVM set to Resistance test
across the surface mount resistor.
STV7620
BLK
POC
STB
A6
A5
A4
A3
A2
A1
CLK
F/R
BS
VPP
OUT96
OUT1
VSSP
P
b
it
s
h
ift
re
g
is
te
r
P
P
b
it s
h
ift
re
g
is
te
r P
P
b
it
s
h
if
t re
g
is
te
r P
P
b
it
s
h
ift
re
g
is
te
r P
P
b
it s
h
ift
re
g
is
te
r P
P
b
it s
h
ift
re
g
is
te
r P
1
2
3
4
5
6
16
16
16
16
16
16
91
92
93
94
95
96
Q1
Q
2
Q
3
Q
4
Q
5
Q
6
Q94
Q95
Q9
6
LAT
C
H
DIAGRAM OF THE COF IC
Summary of Contents for 50PC1DR - - 50" Plasma TV
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