Kortek corporation
75
of
99
PDP R&D Center
10.5 Sustain Short
(Some horizontal lines appear to be linked on Video)
[ Y-FPC ]
Sustain Short
Y-FPC
① Y-Buffer
② Y-Buffer
Check connector(80pin)-output
(CN5401,5402,5403,5501,
5502, 5503)
Check Scan Driver IC/100pin-
output
Upper(IC5401,5402,5403,5404)
Lower(IC5501,5502,5503,5504)
OK
NG
NG
NG
FPC(80pin)CON
(Check shorting by soldering,
a foreign(conductive)
substance)
Repair/Replace the CONN
Check FPC(80pin)-output
NG
Repair/Replace the CONN
NG
Repair/Replace the IC
NG
Refer to
Sustain Open
Block Diagram
FPC(80pin)CON
(Check shorting by soldering,
a foreign(conductive)
substance)
Check Scan driver IC
(Check shorting by soldering,
a foreign(conductive)
substance)
☞ In checking input or output pins,
Check “No solder/Cold solder/Lead bent” on Connector Leads
To check IC failure, raise IC output lead from
PCB pad and check the output lead waveform.
In case of IC failure, Replace the IC
Содержание P42SV
Страница 2: ...Kortek co kr May 2003 Printed in korea...
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