Kortek corporation
61
of
99
PDP R&D Center
10. Troubleshooting
Trobleshooting: It makes it easy to fine causes that can produce abnormal conditions.
▶ This chart contains abnormal conditions happened in 2002. (PBA of 42
”
S1.0 Module)
* You should learn PBA Analysis Manual to be familiar with PBA specification and
output wave form, before learn Troubleshooting
Condition Name
Description
Related Board
■ No Power
Operating Voltage don
’
t exist
AC Filter, SMPS
■ No Video
Operating Voltages exist, but an Image doesn
’
t
exist on Video
Y-MAIN, X-MAIN, Logic
MAIN
■ Abnormal Video
Abnormal Image is on Video
(except abnormality in Sustain or Address)
Y-MAIN, X-MAIN, Logic
MAIN
■ Sustain Open
Some horizontal lines don
’
t exist on Video
Scan Buffer, X,Y FPC
■ Sustain Short
Some horizontal lines appear to be linked on
Video
Scan Buffer, X,Y FPC
■ Abnormal Sustain
Abnormal Condition on horizontal lines
(except abnormality of Sustain Open or Short)
Y-MAIN, Scan Buffer
■ Address open
Some vertical lines don
’
t exist on Video
Logic MAIN, Logic Buffer,
FPC, COF
■ Address Short
Some vertical lines appear to be linked on
Video
Logic MAIN, Logic Buffer,
FPC, COF
■ Abnormal Address
Abnormal Conditon on Vertical lines
(except abnormality in Address Open or Short)
Logic MAIN, Logic Buffer,
FPC, COF
Содержание P42SV
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