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Panasonic Stereo Video NV-HV61. Power cut at home and Video will ot switch on. power going in& Signal splitter working. Fuse not blown. Power aftr the rectifierbut I need circuit information to go any further.

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SOURCE: Panasonic TC-25V50A TV circuit schematic

Success! After finding nothing with a visual check I dropped the set about 3inches and all is well. Must be a mechanical connection problem. Probably a dry joint, will resolder if it happens again. John

Posted on Nov 30, 2008

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SOURCE: Panasonic NV-V8000 no apparent power ,fails to switch on

Check all the small size capacitors on the power board (switching ps). There is a small capacitor that will need to be replaced sooner or later. (They dry out with age).

Posted on Jan 19, 2009

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Jan 02, 2014 | Projection Televisions

1 Answer

Panasonic PT47XD64J Rear Projected TV


I know this sounds crazy but unplug everything in the HDMI ports. This series of Panasonic TVs have had many problems with bad HDMI ports. If there is a device plugged into one of the blown ports the power light will blink and the TV will refuse to power on.

If it comes on plug in devices one by one. You'll be able to isolate the bad port. Just refrain from using that one from now on. There's not much else you can do. There are HDMI splitters available if you need all your ports. It's an extra step but it's certainly cheaper than buying a new TV.

Jul 23, 2012 | Panasonic Projection Televisions

1 Answer

Our first tv has a booster amplifier on the coaxial cable, i have purchase a new tv and need to know what product i need to us to attached the new tv's coaxial cable too. We have used a splitter box, but...


To have good picture quality you need zero DB (decibels) for one TV without a splitter. You can use and inline amplifier for each individual TV hooked up to the cable input with a output leg connected to each TV. If your house in wired in parallel (one main input hooked up to a splitter with all of the other TV's run off of the splitter) you can use a whole house amplifier hooked up inline between the input line and the splitter. If you house is wired in series (the input goes to the first outlet, then splitter to second outlet and so forth) each splitter knocks your signal levels down 50% each splitter. Amplifier placement depends on how the home is wired and how many TV's are in the home. Splitters can be either balanced (50/50 split) or imbalanced (75/25) etc. On a two way splitter 75% of the signal goes out one leg, while 25% goes out the other (usually for FM transmissions). If you have a three way splitter the signal is divided by the number of output legs. Splitters do go bad as well (sometimes only one leg). You can also buy an amp that is multi- port (which splits the signal and amplifies in one unit/ one input and 2,3,4 outputs). Amplifiers are electric and there is no way that the splitter can interrupt the power that would take all the signal away. If you meant that it drops the signal level so the picture is unacceptable, that's different. If you have another splitter in the house try using that one, the other might be bad. All in all you can purchase most anything you need at a Radio Shack and are very inexpensive. Amps can be purchased in different gains (boost). +10db, etc. I cannot believe that your cable company is giving you such minimal signal that 1. you need an amp?, and 2. that one splitter drops your picture to nothing? Your line extenders (amps for the lines that feed your neighborhood) might have problems or need adjustment by the lazy, cheap, cable co. also. I had problems with my cable company (when I had one) my modem would not stay online. 4 months later, they diagnosed the problem and my drop (RG56 cable line that feeds my home from their tap in the cable box outside) was bad. My friend could stay online and 2 months later comcast adjusted their amps (line extenders) in the neighborhood and then he was fine. I know this is a lot to digest, but I'm just trying to draw a clear picture so you can understand it all. I hope this helps and good luck!
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Nov 07, 2009 | Projection Televisions

2 Answers

I purchased a JVC LT52X579 March 30/09. The TV would phase out by itself and then restart by itself. Some times it would remain on and could be cut off only by unplugging it from my sudge protection...


Hi,
Please unplug TV from wall socket for couple of minutes, replug back in and turn ON.
If still does not power up, try it in another wall socket.
Also check standby/ power light flashing or its solid at TV.
If standby light is flashing or its not lit then TV got power supply problem and requires qualified TV tech. I hope TV is still under warranty so ask for warranty cover to store.
Thanks.

Jul 24, 2009 | JVC Projection Televisions

1 Answer

Panasonic NV-V8000 no apparent power ,fails to switch on


Check all the small size capacitors on the power board (switching ps). There is a small capacitor that will need to be replaced sooner or later. (They dry out with age).

Dec 30, 2008 | Panasonic Projection Televisions

2 Answers

Green Light blinks, no picture, bulb new


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 tv1.gif.
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 shack1.gif 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
must be crimped.

Jan 14, 2008 | Panasonic PT-40LC12 40" Rear Projection...

1 Answer

Panasonic 51"


First there are a few questions. Did You disconnect fly back xformer (black honeycomb looking deal with red large gauge wires)? Did you make sure your solder splash didn't bleed over on causing shorted amplfier(s)? Have you identified what component has went home to ma ma? You should see discoloration on either board, replace blown fuse power board replace damage part(s) and go over real good before applying power.

Sep 05, 2007 | Panasonic PT-51HX41 51" Rear Projection...

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...

2 Answers

Instantly blows the 5 amp fuse next to the power cord plug.


You have a short in the power supply. Look at the regulator and or rectifier diodes. These are all on th primary side of the SMPS (switched mode power supply) the secondary side if shorted shouldn't cause a blown fuse at all.

Mar 18, 2007 | Mitsubishi VS-50607 50" Rear Projection...

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