Question about LG 50PC3D 50 in. Plasma Television

1 Answer

LED flashes green 3 times then turns RED...doesnt power

Unit use to take a few minutes to power...now nothing..
main power board....if so where & how much can I obtain for.
Also what would a authorized service repair shop charge me?

Posted by on

  • Kenneth Lee Sr. Apr 28, 2010

    the main power board needs replacement? Chu?

  • Kenneth Lee Sr. Apr 28, 2010

    will the part be still available...model discontinued...

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1 Answer

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  • LG Master
  • 8,457 Answers

Any BIG SCREEN TVS authorized shop,will charge u about $500-575 for parts and labors.Relating to the problems u discribing.

Posted on Apr 28, 2010

Testimonial: "very helpful...fast response..."

  • Chi Chu Apr 28, 2010

    Don't know which power boards are dead. There are two one primary,and a second dairy.Don't know which must take tv aparts first to examine.

  • Chi Chu Apr 28, 2010

    Most likely they take out the two power boards,examine and change parts.If the problems,it difficult to find.They probally order a refurbish power board for the replacement from many sources from the web.

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blinking

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Error Indication Information
Error No. Error Information ERROR DESCRIPTION LAMP LED OSD LAMP OFF
(Note 3) (Note 4)
POWER LED TEMP LED
Note:
1.When any of the above errors has occurred, the LED will flash as shown above every 5 seconds.
2.When two or more errors have occurred at the same time, the LED will light up or flash as shown above, and then
change to another every 5 seconds in turn.
3.Warning OSD appears when the Air Filter is clogged 90%, accumulated operation time of the Lamp reaches 5000 hours,
or accumulated operation time of the Air Filter reaches 400 hours.
4.LAMP OFF: The LED will flash right after the Lamp goes off.
5.IC2301 is mounted on LCD Main C.B.A. which is included in the Projection Unit.
6.IC6001 is mounted on TV Main C.B.A.
Clogged air filter
more than 90%
15)
16)
17)
18)
1)
2)
3)
4)
5)
6)
7)
11)
8)
9)
10)
12)
13)
14)
- flashes 5 times -
every 5 seconds
IC2301(pin82) detects the clogged air filter, then indicates the
error when the air filter is clogged 90%.
Front Fan stop or
Lamp Fan stop
flashes orange
once every
5 seconds
- -
IC2301(pin12) detects the Front FAN stop or Lamp
FAN stop, then indicates the error when the Front FAN
or Lamp FAN is stopped.
Lamp Cover open
Temperature Sensor
short or open
flashes orange
twice every
5 seconds
flashes orange
3 times every
5 seconds
flashes green for
140 seconds.
flashing red for
60 seconds.
light up red.
flashes once
every 5 seconds
flashes once
every 5 seconds
flashes red for
10 minutes
flashes once
every 5 seconds
-
-
-
-
Abnormal
Temperature
flashes twice
every 5 seconds
flashes twice
every 5 seconds
- -
Request for Lamp
Replacement - - lights up
Power Ballast Error
(abnormal
Lamp voltage)
- -
flashes 3 times
every 5 seconds
Power Ballast Error
(abnormal
temperature)
- -
flashes 4 times
every 5 seconds
Power Ballast Error
(other causes) - -
- -
Request for Filter
Cleaning -
Abnormal Voltage
on 16 V line of
LCD Main C.B.A.
-
flashes twice
every 5 seconds
flashes twice
every 5 seconds
Abnormal Voltage
on 14 V line of
LCD Main C.B.A.
-
flashes 3 times
every 5 seconds
flashes 3 times
every 5 seconds
Abnormal Voltage
on 7 V line of
LCD Main C.B.A.
-
flashes 4 times
every 5 seconds
flashes 4 times
every 5 seconds
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IC6001(pin86 and 87) detects open or short of the
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is cracked.
IC2301(pin11) detects the error of the Lamp, then indicates the
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IC2301(pin47) detects +14V line voltage on LCD Main
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IC2301(pin45) detects +7V line voltage on LCD Main
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IC2301(pin44) detects +3.3V line voltage on LCD Main
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every 5 seconds
flashes 4 times
every 5 seconds
Abnormal Voltage
on 3.3 V line of
LCD Main C.B.A.
-
-
-
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every 5 seconds
Forced cooling
The failure of Lamp
light up
-
Temperature Sensor
short or open
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-
Abnormal
Temperature
Duct Fan stop -
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When accumulated operation time of the Air Filter reaches 400
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During forced cooling, this indication is indicated.
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