Kortek corporation
71
of
99
PDP R&D Center
10.3.2 Abnormal Video (The 2
st
type)
(Abnormal Image is on Video.(except abnormality in Sustain or Address))
Rising SW
Falling SW
[ X-MAIN ]
Check Control signal
① X-MAIN
Check discarge state of
ERC circuit(C4049,4050,4051,
4052)100Vdc
② X-MAIN
③ X-MAIN
X-MAIN
O.K
Check Rising Ramp-slope
(VR4001)
Check input(1(Vdd),3(Vcc),5(Ve)
,10(Vs),11(Vs),12(Vs) )pins of
the CN4004/CON_12pin
Check Operating Voltage
SPEC.
→ Adjust
OK
NG
NG
OK
Repair
Adjust the slope
NG
OK
The slope of Rising/Falling(VR4001)
☞ In checking input or output pins,
Check “No solder/Cold solder/Lead bent” on Connector Leads
Содержание P42SV
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