Question about Panasonic PT-40LC12 40" Rear Projection HDTV

2 Answers

Lamp will not light

Ok, I got this tv with a blown bulb (definitely was blown), ordered a new TY-LA1500 bulb, still no light. I get a few green blinks, then 2 blinks of amber every 5 seconds. I read online that the amber means either the bulb is not fully inserted or its the ballast. I have already tested the thermal fuse and it is fine. How many volts should I be getting to the bulb connector? I'm getting right around 47.........I bought this tv for my grandma to replace her 40 year old tv and its turning into a nightmare, HELP!!!!

Posted by on

  • 1 more comment 
  • Yager D
    Yager D Jan 28, 2008

    Also, I tried to test the new bulb for continuity with no prevail. I read a few places online that said this bulb cannot be tested for continuity, how is this possible?

  • Yager D
    Yager D Jan 28, 2008

    You think panasonic would help even though I don't have a warranty or anything through them? Just kind of irritating due to the fact that the bulb was blown, buy a new one and no fire. I'm running out of stuff to test.....

  • Yager D
    Yager D Jan 28, 2008

    I am getting between 0.1-0.2 ohms of resistance, is this about normal??? I'm getting about 47 volts on each side of the thermal fuse. If it is the thermal fuse, I was reading that the new fuse should not be soldered on, why is this? And If I cannot solder it, anyone have a way to crimp it on?

×

Ad

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 18 Answers

Amber light means the cover to the bulb is not in place.

Posted on Mar 06, 2009

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 4,402 Answers

At first i was thinking the ballast had gone bad but after reading a few other post i think it would be best to call pannasonic..
others forums read:
ballast had gone bad. Panasonic no longer makes these ballasts so mine needed to be rebuilt at the tune of $400.00.

With the ballast in place still nothing so now they claim that they need to order a "kit" from Panasonic which basically is all the components of my tv.

Posted on Jan 28, 2008

  • 1 more comment 
  • Cary Farah
    Cary Farah Jan 28, 2008



    Found that the thermistor/temp measuring device is suspect, no resistance across legs. There is a label there that says F701 see service manual
    http://www.goodmans.net/get_item_th-tf11...

    I went here for a tech manual for the Panasonic
    tv.

    http://www.ManualsParadise.com

    then ordered

    Manufacturer: Panasonic

    Part Description: FUSE

    Part Number: LSJA0411-1

    from
    PartStore.com

    it was mounted to the case that holds the lamp. had to remove the back panel, etc. Also think I had to splice in the fuse or something. was a while ago.



    i purchased a NTE8115 from my electronics supplier, closest I could find.
    Radio shack also has them.



    remove the back cover and measure for continuity across the thermal fuse

    above the lamp housing.

    if open jump it wth a 5 amp fuse, be sure to close the safety switch with

    the small blue lever then try to power on.

    If comes on ok you will need to replace the entire ballast assembly to get

    that fuse.

    Panasonic does not have a part number for just the fuse on the PT40LC

    series.

    It is possible to cut off the fuse and replace with another but dont solder




  • Cary Farah
    Cary Farah Jan 28, 2008

    check the F701 if thats not it then you will have to contact panasonic or service rep.

  • Cary Farah
    Cary Farah Jan 28, 2008

    looks like it's good., the reason i think they dont want you to solder it is because it will loosen up

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Trying to replace lamp in HDTV and having trouble. Does not function correctly after putting in new bulb. Boots up and then visuals go black and the green power light keeps flashing. Help?


Panasonic DLP TV Bulbs

Make sure its an original Osram or Philips bulb inside the housing. If its a cheap lamp it will act this way. If it is an original lamp, then you may have a power supply issue. It shouldn't affect your TV but you may want to try resetting the lamp timer by following the instructions that came with the lamp.

TY-LA1001 Timer reset

While pressing the VOL- button on the projection display, hold down the number 0 button on the remote control at the same time for more than 5 seconds.

Aug 15, 2015 | Panasonic Pt-52lcx16 Projection Television

2 Answers

When you turn of the TV the POWER indicator flashes green for several minutes. The TV never comes on. After the several minutes of the POWER indicator flashing green, it stops, I hear a click and the...


A continuous flashing red light with the word LAMP on it would definitely mean you're going to need to spend a few bucks on a new lamp....or for a few more, upgrade to a TV from this century that doesn't require lamp changes :)

May 11, 2011 | Panasonic PT-52LCX66 Projection Television

2 Answers

Describe your Panasonic PT-60LC14 60 in. Rear Projection HDTV Television Problem: Need to reset timer light--how does one do that?? We got the new lamp installed but it keeps blocking the screen telling...


Hold VOL - on the TV then aim the remote at the TV (watch so that your arm doesn't block the remote signal and press PIP or the SPLIT button. Do this together for at least 5 second. I hope this helps.

Mar 18, 2010 | Panasonic PT-60LC14 60" Rear Projection...

1 Answer

I get no picture and the green light flashes then turns red.


LAMP TY-LA1500 orTY-LA1000 Call Fox they have them for 139.00 1-800-227-5369

Dec 14, 2009 | Panasonic PT-50LC13 50" Rear Projection...

1 Answer

TV acts like it is turning on then shuts off then repeat, repeat


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.

May 22, 2009 | Toshiba 62HM95 62" DLP HDTV

1 Answer

Panasonic TY-LA1000 has good lamp, but black screen. light is blinking green, then solid green, then after some time goes red?


We have a PT-50LC14. We replaced the lamp 6 months ago with a TY-LA1000 bulb we bought from a company online (not directly from Panasonic) and it worked for 6 months. Then the TV started turning off on it's own...sometimes it would not come back on for an hour or so. We called the lamp company and we luckily had 1 day left on our 6 month warranty!! They sent us a replacement bulb and the TV would never power on. It would try to power up, but the bulb would never ignite. The power light would flash and then the lamp light would flash every 5 seconds. I had a friend that has the same type of TV and she ordered her bulb directly from Panasonic. I borrowed her lamp and it powered right up. We then called the online company and they sent us yet another replacement bulb, and I tried it today and it works. It seems like these TVs are very particular about the type of bulb used. Next time, we will be ordering ours directly from Panasonic and just paying the extra $100. We have been without our big screen for 2 very long months! I had called a local tv repair shop, called Panasonic directly, and read through countless internet forums, and I thought we were going to have to replace the ballast or get a ballast repair kit and start messing with the circuit board.

Jan 11, 2009 | Panasonic TY-LA1000 Projector Lamp for...

2 Answers

My tv sony kds-50a2000 dont tur ON


I have a Sony KDS-50A2000 50 in. HDTV Television. I just replace the lamp because I got the message that appeared on the TV. Lamp needs to be repaced. I replace with a Sony lamp and now TV cut off after 2 to 3 hours off watching the TV. Any Idea what is going on with this TV

Jan 02, 2009 | Sony KDS-50A2000 50" HDTV

2 Answers

Panasonic lamp


Brian, I just helped my buddy replace his Panasonic ty-la 1000 bulb this weekend. I have to tell you that I have a complete illiteracy when it comes to electronics but we got it done in about twenty minutes and were watching it again. Looks great. We ordered the bulb from dlp lamps.com and had it in about two days. They also had super easy instructions to follow. Try it before you replace the entire TV.

Sep 07, 2008 | Panasonic TY-LA1000 Projector Lamp for...

1 Answer

I have a Panasonic PT40LC12 Multimedia Projector which requires a TY-LA1500 bulb. For some reason, the tv turns on but no picture comes up. The bulb light or temp light on the tv is not on so I think the...


you would need the service manual to even begin ti diagnose the problem. You can get a copy of your service manual for that model emailed to you and they offer free tech support with an on line tech to help you figure it out. The tech support is a free service for anyone buying a servicemnaual. Heres the link.
http://servicemanuals.vstore.ca/

May 03, 2008 | Televison & Video

4 Answers

PT-52LCX16


Hello swankymom, juancardenas,
Your both problem is a defective lamp. That is your only problem.
List Price $233
Part Number TY-LA1001
3fa1dcd.gif

Best regards
circuitcity


Apr 13, 2008 | Panasonic PT-53TW53 53" Rear Projection...

Not finding what you are looking for?
Panasonic PT-40LC12 40" Rear Projection HDTV Logo

486 people viewed this question

Ask a Question

Usually answered in minutes!

Top Panasonic Televison & Video Experts

 Grubhead
Grubhead

Level 3 Expert

5554 Answers

Demonic-2011
Demonic-2011

Level 3 Expert

509 Answers

The Knight
The Knight

Level 3 Expert

75846 Answers

Are you a Panasonic Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...