Kortek corporation
67
of
99
PDP R&D Center
10.2.2 No Video (The 2
th
type)
(Operating Voltages exist, but an Image doesn’t exist on Video)
WAVE of Xrr
WAVE of Xr
WAVE of Xf
WAVE of Xs
①X-MAIN
[ X-MAIN]
Check X-Out 1, 2
output-WAVE
Check S/W_FET/ GATE-WAVE
(Xrr.Xr.Xf.Xs.Xg)
①-①
X-MAIN
①-②
X-MAIN
After check
coldsoldering &
Pin-shorting,
Replace the IC
NG
OK
①-③
X-MAIN
OK
NG
Check SMPS
output-volt.
harness connection
After check FET, if
it’
s failure, replace.
②-①
X-MAIN
②-②
X-MAIN
Check input(12,24)pins of the IC4007,
4006,4001 /IR2110S
Check output(1,8)pins of the IC4007, 4006,
4001 /IR2110S
X-MAIN
O.K
After check
coldsoldering &
Pin-shorting,
Replace the IC
NG
NG
NG
Check output(3.6,8,11)pins of
the IC4005 /74HC08
Check Logicsignal input(2,4,6,8,
10,12)pins of CN4005/Con_13Pin
Check pins voltage(1(Vdd),3(Vcc),
5(Ve),10(Vs)11(Vs),12(Vs)pin) of
the CN4004/Con_12Pin
NG
OK
After check
coldsoldering &
Pin-shorting
Replace the IC
☞ In checking input or output pins,
Check “
No solder/Cold solder/Lead bent”
on Connector Leads
NG
Содержание P42SV
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