D8MW
29
...TROUBLESHOOTING FLOWCHARTS (continued)...
Is the burn-in
mode normal?
LED is green lighting.
Are the voltage of
pin 1-5 of CNPP1and pin 1-5 of
CNPP2 (power supply unit) normal?
Normal voltage is +24V.
It is trouble of Power supply
unit.
Please change.
No
Go to # 1
Yes
It is trouble of Main PWB or
Terminal PWB.
Picture trouble Go to “A”
Sound trouble Go to “B”
No
Yes
After a few seconds, it becomes
a red lighting even if it turns on
power.
Main PWB -- Inverter PWB
PPO1(pin 10) -- CN2(pin 12)
PPO1(pin 11) -- CN2(pin 14)
Are these connected?
No
It is trouble of Power supply unit.
Please change.
Or please check ELCD2 connector
or EPS connector.
Yes
It is trouble of Main PWB or LCD
panel (include Inverter PWB)
Please change.
Summary of Contents for UT42V702/D8MW
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Page 42: ...D8MW TABLE OF CONTENTS Final assembly guide 41 1 9 ...
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Page 49: ...D8MW TABLE OF CONTENTS Final assembly guide 48 8 9 ...
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Page 83: ...D8MW TABLE OF CONTENTS PRINTED CIRCUIT BOARDS 82 page 1 5 Main board components side ...
Page 84: ...D8MW TABLE OF CONTENTS PRINTED CIRCUIT BOARDS 83 page 2 5 Main board solder side ...
Page 90: ...PA NO 0239 MADE IN MEXICO ...