Lg 52'' dlp tv turns on then shuts done after short time, lamp bulb flashs 5 red times. tv will turn back on - repeats problem

Your lamp has probably failed. You can buy a new bulb for under $100. http://projectorlamps.com/lg-zenith-dlp-tv-lamp-ru52sz51d-bulb.html RU52SZ51D Bulb LG Genuine High Quality Original Projector Lamps now...

It is helpful to have the sequence of the blinking red light. This may help:

MODELS: WD-52627 / 52628 / 62627 / 62628 / 62827 / 62927 / 73727 / 73827 / 73927

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3. Error Code Operational Check

Note: The TV must be in "Shut Down" and not have been switched Off, to perform the Error Code Operational

Check. When the TV is switched Off, the code automatically resets to "12" No Error.



Pressing the front panel "DEVICE" and "MENU" buttons at the same time, and holding for 5 seconds,

activates the Error Code Mode. The LED flashes denoting a two digit Error Code, or indicating no problem

has occured since the last Initalization.



Note: The front panel buttons must be used, NOT those on the Remote Control.



• The number of flashes indicates the value of the MSD (tens digit) of the Error Code.

• The flashing then pauses for approximately 1/2 second.

• The LED then flashes indicating the value of the LSD (ones digit) of the Error Code.

• The Error Code is repeated a total of 5 times.



Example: If the Error Code is "23", the LED will flash two times, pause, and then flash three times.



4. Error Codes

The Error Code designations indicating malfunction, or no malfunction, are listed below:

POWER

LED

STATUS

LED

LAMP

LED

Power

Status Condition

Off Yellow Off Low

Power Excess heat. Check Lamp Filter

Off or On Off Yellow No

change

120w usage time over 7000 Hrs.

150W usage time over 3500 Hrs.

Off Off Blinks

Yellow

Low

Power Lamp Cover open

Off Blinks

Yellow Off " Filter Cover Open

Off Off Red Stby Lamp did not turn On

Off Blinks

Red Off Low

Power Fan Stopped

Off Red Off " Circuit failure (short or DVI

connector unplugged)

Abnormal LED Indications

Error Codes "DEVICE" & "MENU"



Error Codes Description



12 No error detected

22 Recovery from Reset

32 Lamp cover is Open

34 Lamp abnormality

35 DM Fan failed (Chassis Fan)

36 Exhaust or Lamp Ballast Fan failed

37 DMD Engine Fan failed

38 Lamp temperature abnormally high. Remove Lamp to check filter.

39 DMD temperature abnormally high

41 Short is detected (Standby Power Supplies)

42 Lamp Fan failed

44 DVI cable between Format and Engine disconnected

46 DMD Temp. Sensor not detected (check DT connector))

47 DM Temperature too high

48 Engine power supply short detected

51 Speaker Drive circuit short detected

52 HDD excess temperature (V30+ & V31 only)

55 HDD Fan Stopped (V30+ & V31 onlyt)

Replace the Lamp P/N 915PO20010 if it has never been replaced.
Mats Electronics has them for $99.00 1-800-628-1118

Problem on power supply.
Solve: If you fix this problem itself,change capacitor or power transistor,Drain section LT diode fault change it.then solve your problem.

Check to make sure that the lamp housing is fully seated in the compartment, and that the door is properly closed and secured. There's a microswitch on the lamp access door that will shut the lamp off if the door isn't in place properly. That switch itself can be bad and can cause your problem.
Good luck.

If the second light is blinking to orange or red, that is usually the lamp indicator light on an LG DLP tv. That indicates your bulb needs replaced, or something surrounding the bulb has failed (like the cooling fan for the bulb for example) IF you have a spare bulb handy, I'd replace the bulb, keeping in mind if you touch any part of a new bulb with your bare hands, you just cut the life of the bulb by more then half.

the pins that protrude into the lamp compartment have a tendency to get out of alignment where the lamp will only make partial contact. It sounds like what youre describing.

When my lamp died the bulb literally exploded. That may be what you heard. Have you check the lamp? If the lamp is ok, the lamp's ballast or power supply might have blown.

DLPs have flow chart trouble shooting techniques to pinpoint exactly why your set isnt completeing the boot sequence. If you would like the service manual for your model let me know and i will post a link where you can purchase a complete one.

1. Unit powers on and works properly for a while then shuts off with a red lamp LED (lamp error). Suspect bad lamp part # 915P020010 2. Lamp enable line at J14 pin 6 does not switch to 5 volts after turn on, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977010 3. At power on the lamp turns on and off three times and then the unit shuts down with a red lamp LED (lamp error). Replace the Light Engine part # 939P977010 4. Check for 12-volts DC at J-9 connector pin 4 on the Engine Driver PCB, if missing check for an open F9A09 on the Power PCB, if it is open replace F9A09 part # 283P127060 and the Light Engine part # 939P977010 5. Lamp enable line at connector J14 pin 6 on the Engine Driver PCB switches to 5 volts after turn on but does not go back to 0-volts (low) after 5 seconds, 12 and 5 volt supplies are good. Suspect the Light Engine part # 939P977010 6. Check for 5-volts DC at J-9 connector pin 1 and 2 on the Engine Driver PCB if low or missing check C9A37 and C9A38 both 3300 UFD 10 V part # 181P732040 on the Power PCB part # 930B929001