Kortek corporation
72
of
99
PDP R&D Center
10.3.3 Abnormal Video (The 3
st
type)
(Abnormal Image is on Video.(except abnormality in Sustain or Address))
[ Logic MAIN ]
Check
Data, Control-signal
① Logic MAIN
Check Oscillator Output &
frequency -WAVE
X2000(60MHz) pin3
X2001(40MHz) pin3
X2002(28.636MHz) pin3
② Logic MAIN
③ Logic MAIN
Check Generator Output
F1,F2,256K
Check Generator-output
IC2001/240pin Solder
(coldsoldering, insert missing,
shorting)
OK
NG
NG
OK
NG
Check input
voltage(3.3V)
Check and replace the
F1,F2,256K
Check
IC2037/ 2th-output
and pattern
Check Coil 10uH-
running condition
Replace the fault
Oscilator
NG
NG
OK
OK
Repair
④ Logic-
MAIN
⑤ Logic-
MAIN
Logic MAIN
O.K
Check Delay Controller-output
IC2002/240pin Solder
(coldsoldering.solder missing.
Short)
Check Data Memory Controller-
output
IC2005,2006,2007,2008/100pin
Solder(coldsoldering,solder-
missing,Short)
NG
Repair
NG
Repair
X
2
0
0
2
(6
0
M
H
z)
3
th
-
P
in
X
2
0
0
1
(4
0
M
H
z
)
3
th
-
P
in
X
2
0
0
2
(2
8
.6
3
6
M
H
z)
3
th
-
P
in
Replace the fault
Oscilator
☞ In checking input or output pins,
Check “
No solder/Cold solder/Lead bent”
on Connector Leads
Содержание P42SV
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