Kortek corporation
62
of
99
PDP R&D Center
10. 1 Troubleshooting Procedure in Abnormal Conditons
10.1.1 No Power (Operating Voltages don’t exist)
Check the AC
Power
Cord Connection
AC Noise
Filter
Check CN8702/2Pin
(220Vac) Connection
AC Noise
Filter
Replace After Check whether
F8701, 8702 Fuse
is short or not
Check Whether L8704 Choke
is reverse or not
①SMPS
②SMPS
③SMPS
Check V5A(5Vdc)
Voltage
Check LED8004(RED)
Protection light-out
④SMPS
Check output voltage of
SMPS
Replace the SMPS
Replace the SMPS
Check
Protection Failure,
SMPS(Shutdown)
(Vs,Va,V5)
NG
NG
OK
OK
OK
OK
OK
NG
NG
NG
Connect the
AC Power cord
Check
LED(Green)
8001,8002,8003
turn-on
Replace the
SMPS
NG
/Logic-Connector(Va)/
Check
(LP1/5Pin) Open-Output
(OVP,OCP)
/Logic MAIN(V5)/
Check
(LD1/4Pin) Open
Output(OVP,OCP)
/Y-Main Connector(Vs)/
Check
(CN5008/13Pin) Open
Output(OVP,OCP)
/X-Main CON(Vs)/
Check
(CN4002/13Pin)Open
Output(OVP,OCP)
Replace the B/D
&
Check
NG
CN4002/CN5008
Output Voltage
VDD-in: 5Vdc
PG
VCC-in: 18Vdc
PG
Vscan: 79Vdc
PG
Vset: 220Vdc
NC
PG
PG
Vs-in: 165Vdc
Vs-in: 165Vdc
Vs-in: 165Vdc
Check SMPS Output
in manual
Check CON8002/2Pin
Connector(220Vac)
AC Cable is Open?
→Replace it.
Содержание P42SV
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