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

1 Answer

I have a Panasonic PT40LC TV and while watching it the TV just made a big pop and everything went out. Nothing turns on.

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  • theutpn Feb 07, 2009

    When you say bulb are you referring to the lamp unit?

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  • Panasonic Master
  • 8,617 Answers

Most likely the bulb has blown, often they will actually shatter which can sound like a large popping sound

Posted on Feb 05, 2009

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1 Answer

Tv went out after loud pop and has clicking noise does not turn on


If you have a Sony DLP, then the loud pop you heard is your lamp.  The lamps last approx. 4K-6K viewing hours.  Read your manual for replacement part number to reorder and very simple to replace yourself.

Apr 22, 2009 | Televison & Video

1 Answer

TV will turn on, but not respond


Good Day, mistymiles;

Try this before calling a factory authorized service center:

Press " menu 2 > 4 > 7 > 0 > enter", on remote. After settings have been initialized > press the system reset button on the front, once the LED stops blinking > reprogram settings and tuner channels (if not using box). IF NOT fixed call for service (get estimate before repair) and suspect repair of DM PCB (printed circuit board).

Good Luck, big IRISH.

Jul 31, 2008 | Mitsubishi WD-52525 52" Rear Projection...

2 Answers

Tv went out, made a pop sound and won't turn back on


Sounds like the flyback went out. Your set is a CTC195 you can get a replacement flyback for it at the following link. They also provide free instalation instructions and free on line tech support.
http://servicemanuals.vstore.ca/

Apr 30, 2008 | RCA P56950 56" Rear Projection Television

2 Answers

Green Light blinks no picture


check 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-tf117c_thermal-fuse-117-degrees-celsius.htm
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

Dec 27, 2007 | Panasonic PT-40LC12 40" Rear Projection...

1 Answer

Changed bulb, green light blinks, nothing happens


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-tf117c_thermal-fuse-117-degrees-celsius.htm
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

Dec 17, 2007 | Panasonic PT-40LC12 40" Rear Projection...

1 Answer

Power problem


would require some troubleshooting, common problems would be convergence amp ic and high volt transformer transistors

If you are really brave tackle this TV FAQ.
http://repairfaq.ece.drexel.edu/sam/tvfaq.htm

Dec 04, 2007 | Panasonic PT-47WX42 47" Rear Projection...

2 Answers

50 inch 1999 TheatreView Television


#1 When I turn on the TV the power button comes on then blinks 6 times then goes off for a few seconds then repeats the cycle. I have sound over my surround system during this time but no picture.
#2 My sound would crackle and pop every once and a while until now it does nothing. I have to watch it with the surround sound on.

Nov 26, 2007 | RCA HD52W59 HDTV Projection Television

2 Answers

Dead tv


Sounds like a power supply problem. I am sure that the pop is the fuse blown. If the fuse is blown, this means that there is a short somewhere. Rear projection TV are like LCD projectors. And all of them use Switch mode power supply. If you are lucky, there is a chance that a protection device (like a varistor) is sorted. This means that removing this, even without replacing will bring your TV to life, however... Most probably the power supply is defective.

May 22, 2007 | Panasonic PT-50LC14 50" Rear Projection...

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