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I have a Panasonic PT50LC13 flat screen LCD. It will turn on for about 10 minutes then shuts off. The power light flashes red and the lamp light slowly flashes red as well. The lamp was replaced about a year ago and just for kicks I did a reset on the lamp with no effect...any ideas? Thanks!

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  • 3 more comments 
  • witsends Mar 28, 2011

    This was a new lamp/housing assembly, it was a Philips, not a factory Panasonic but suppose to be the same quality...so they say.

  • witsends Mar 28, 2011

    This was a new lamp/housing assembly, it was a
    Philips, not a factory Panasonic but suppose to be the same
    quality...so they say.

  • witsends Apr 06, 2011

    Just received my new light, that did the trick.
    Thanks!

  • witsends Apr 21, 2011

    Hello!
    My problem is back, if I try turning it on 3-4 time it will eventually come on and stay on but looks like the trouble is with something other that the bulb..any suggestions?
    Thanks

  • witsends Apr 21, 2011

    Yes it is, the problem actually started about a week after I got the bulb. When the TV does turn on I hear a "click" from the back of the set that I don't hear otherwise..

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  • Master
  • 10,594 Answers

Hi,
Replaced lamp was Panasonic original or some low price bulb that installed in old lamp casing/ housing?
Let me know above info to diagnose problem.
Thanks.

Posted on Mar 26, 2011

  • 2 more comments 
  • Shahid Electronics
    Shahid Electronics Mar 28, 2011

    OK, please reinstall lamp in tv and check. If problem still not solved then replace lamp and please buy Panasonic original lamp for longer lasting.
    Thanks.

  • Shahid Electronics
    Shahid Electronics Apr 06, 2011

    Thats great, have nice time.
    Please click accept solution to close question thread.
    Thanks.

  • Shahid Electronics
    Shahid Electronics Apr 21, 2011

    Please confirm replacement lamp was original from Panasonic?
    Thanks.

  • Shahid Electronics
    Shahid Electronics Apr 21, 2011

    If lamp is original Panasonic then ballast supply would become very sensitive like its built in protection circuit activates without any tolerance of lamp performance.
    I think ballast supply requires repair by technician, click HERE for more details and click for schematic of ballast supply that will help technician.
    Thanks.

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1 Answer

Panasonic tv PT50LC13 has no picture red light flashes when i turn it on green light flashes and turns off


This model was recalled by Panasonic-----massive recall. Start by having the lamp examined or tested---that is the place to begin.

Oct 17, 2012 | Panasonic Televison & Video

1 Answer

Our TV just turned off tonight. The power light flashes green, but never turns on. After a few seconds, it flashes red. We replaced the lamp last month.


This model (pt50lc13) was subject and part of a massive recall by Panasonic and the main problem was the Ballast which powers the lamp had repeated failures where it destroyed the lamp over and over again.

If lamp bad again (should have a warranty on that from where you bought it) the ballast should be dealt with---there is a kit for this but not for a novice at this kind of repair.

Apr 20, 2012 | Panasonic PT-50LC13 50" Rear Projection...

2 Answers

The lamp light is blinking once every 5 seconds. The manual says that " Lamp will not light or light is abnormal"


HI,

Panasonic PT50LC13 lamp indicator blinks to tell you the lamp is faulty.

You need to replace the bulb or TY-LA1000 lamp assembly. This link displays all Panasonic TV Lamps and TV Bulbs. This page shows Panasonic lamp location and How to Replace TYLA1000 bulb. TY-LA1000 Bulb Replacement requires the use of a long Philips Screwdriver to reach screws within the lamp cage.

Unplug AC power before removing the lamp and re-install all doors, etc, correctly before starting the TV. Vacuum any visible dust or lint from air vents and lamp area. Do not used forced air to blow out dust, big problems may result.

The user's manual has a description of what the Blinking LED indicators mean.

easyab.jpg
Image of TYLA1000 lamp.


Robert

Apr 14, 2011 | Panasonic PT-50LC13 50" Rear Projection...

1 Answer

Panasonic PTL500U LCD HiDef projector. Unit occasionally powered up briefly, lamp lit, then shut down, standby LED flashed orange/red. Sometimes lamp lit and sometimes not. Technician diagnosed bad ballast...


If you take the back off you might find a couple of bulged electrolytic caps on the power supply board that need change, or just buy a new power supply at www.partstore.com

Dec 22, 2010 | Televison & Video

1 Answer

Well my mom was watching tv and it just shut off so then my mom turned it back on thinking she might have hit the power button accidentally. But when she turns it on it started blinking the green light for...


The flashing light red power light should only stay while the fan cool down for about 1 minute after a power off (remember to always wait before unplugging the TV so the lamp can cool down with the fan). Does that flashing start right away after plugging back the TV after an hour of letting it without AC power.

The red light should flash no longer than 10 sec. This prepare the light to be turned on. If all is OK the green should stay (no longer flashing) and the sound and picture come on.

As for the lamp flashing, i bet it's only 1 time each 5 sec? Or do it group many rapid flash each 5 sec?

Things that can be wrong:
-the fan lamp

-the lamp is not proprely inserted (wait an hour before manipulating it to be sure it cooled down, and use glove to not put body oil on it).

-Lamps is defective and is not operating properly so you can't get to the usual on screen message that recommend to change the lamp.

Sep 02, 2010 | Panasonic PT-60LCX64 Television

1 Answer

Tv desn't turn on,power light just flashes ten times and then stops and then again


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
IC2301(pin76) detects the Lamp Cover Unit condition
(open or close), then indicates the error when the
Lamp Cover Unit is open.
IC6001(pin85) detects the Duct FAN stop, then
indicates the error when the Duct FAN is stopped.
IC2301(pin74 and 75) detects open or short of the Temperature
Sensor (R2911) on Front Thermistor C.B.A., then indicates the
error when Temperature Sensor is open or shorted.
(The error is not detected for 1 minute after Lamp ON.)
IC2301(pin74 and 75) detects the temperature attached near
the Front FAN by the Temperature Sensor (R2911) on Front
Thermistor C.B.A., then indicates the error when the
temperature becomes more than 43 C (109 F).
(The error is not detected for 1 minute after Lamp ON.)
IC6001(pin86 and 87) detects open or short of the
Temperature Sensor (R2901) on Lamp Thermistor C.B.A.,
then indicates the error when Temperature Sensor is open or
shorted.
(The error is not detected for 4 minutes after Lamp ON.)
IC2301(pin74 and 75) detects the temperature attached near
the Lamp by the Temperature Sensor (R2901) on Lamp
Thermistor C.B.A., then indicates the error when the
temperature becomes more than 60 C (140 F).
(The error is not detected for 4 minutes after Lamp ON.)
IC2301(pin11) detects the error of LCD Power C.B.A.,
then indicates the error when the temperature fuse
(117 C)(243 F) in LCD Power C.B.A. is open.
IC2301(pin11) detects the error of LCD Power C.B.A. and Lamp,
then indicates the error when an inner malfunction of LCD Power
C.B.A. occurs, the Lamp voltage becomes more than 130V or
less than 30V, Lamp current becomes more than 5A, or the Lamp
is cracked.
IC2301(pin11) detects the error of the Lamp, then indicates the
error when the Lamp is short-circuit.
IC2301(pin48) detects +16V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
becomes less than +13V.
IC2301(pin47) detects +14V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
becomes less than +11V.
IC2301(pin45) detects +7V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
becomes less than +5.7V.
IC2301(pin44) detects +3.3V line voltage on LCD Main
C.B.A., then indicates the error when the voltage
becomes less than +2.5V.
flashes 3 times
every 5 seconds
flashes 4 times
every 5 seconds
Abnormal Voltage
on 3.3 V line of
LCD Main C.B.A.
-
-
-
- flashes 5 times
every 5 seconds
Forced cooling
The failure of Lamp
light up
-
Temperature Sensor
short or open
-
-
Abnormal
Temperature
Duct Fan stop -
When accumulated operation time of the the Lamp reaches
5000 hours, OSD (replacing the Lamp) appears on the screen.
Note: The Lamp time is stored in EEPROM (IC2305).
When accumulated operation time of the Air Filter reaches 400
hours, OSD (cleaning the Air Filter) appears on the screen.
Note: The Filter time is stored in EEPROM (IC2305).
During forced cooling, this indication is indicated.
IC2301 (pin11) detects the failure of light up processing of
the Lamp, then the POWER LED is changed as follows.
1) POWER LED flashes green for 140 seconds (while turning on).
2) POWER LED flashes red for 60 seconds (while cooling).
3) POWER LED lights up red (standby).
Note: If the Lamp will not light after attempting turning on the
power 2 or 3 times, the Lamp, the LCD Power C.B.A. or the
LCD Main C.B.A. may be defective.
Error Symptom Problem Possible Solutio

May 30, 2010 | Panasonic Viera TH-50PX80U Plasma TV

2 Answers

The tv will turn on but no the screen wont. and


Replace the lamp would be the first thing to try. Lamp door switch on this model is notorious for going bad. If you replace lamp and still won't turn on jumper door switch. If you take off back you can see switch board.

Nov 21, 2009 | Sony KDF-E50A10 50 in. LCD HDTV

2 Answers

My panasonic (pt50lc13) keeps shutting off after a few minutes.


probably lamp gone out. You can change it youself if you still have owners manual should have directions, if not most lamps have instructions in box.

Aug 10, 2009 | Panasonic PT-50LC13 50" Rear Projection...

1 Answer

Sony Bravia kdl-46S3000 flashing red lights


Sounds Lamp is weak in this TV.
Please replace lamp and procedure is written in TV user manual.

Mar 14, 2009 | Sony BRAVIA KDL-46S2000 46 in. LCD HDTV

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