Question about Insignia IS 20" TV040919 TV

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Insignia TV040919 Dead lightning surge. AC fuse okay. Any ideas. Do you have main board number for this product?

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Look for burned PC board traces on the bottom of the main board. With lightning/surges it could be a wide variety of things. You're probably doing the right thing in looking for a main board however it's probably going to cost you more than the set is worth to go that route........even if parts are available.

Posted on Oct 06, 2008

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Toshiba TV dead: is there a fuse inside? Toshiba 24AF46 is dead after a thunderstorm and nearby lightning. Plug sparks when I plug it into the wall. Nothing happens on the TV. No sound, nothing when I hit...


Yes,there is a fuse in inside on the tv main pcb board near the power a/c cord.But if the tv have sparks,main pcb board could have more other components fries too.If tv less 10 years repair it by a shop,more than that should buy a another tv.

Jun 09, 2011 | Toshiba 24AF46 24" TV

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This morning I tried to turn my RCA TV (model 24R411T) on and nothing happened. I tried plugging it into a different outlet, still nothing. I tried leaving it unplugged about 10 minutes and trying again,...


Hello,

Power surges or nearby lightning strikes can destroy electronic equipment. However, most of the time, damage is minimal or at least easily repaired. With a direct hit, you may not recognize what is left of it!

Ideally, electronic equipment should be unplugged (both AC line and phone line!) during electrical storms if possible. Modern TVs, VCRs, microwave ovens, and even stereo equipment is particularly susceptible to lightning and surge damage because some parts of the circuitry are always alive and therefore have a connection to the AC line. Telephones, modems, and faxes are directly connected to the phone lines. Better designs include filtering and surge suppression components built in. With a near-miss, the only thing that may happen is for the internal fuse to blow or for the microcontroller to go bonkers and just require power cycling. There is no possible protection against a direct strike. However, devices with power switches that totally break the line connection are more robust since it takes much more voltage to jump the gap in the switch than to fry electronic parts. Monitors and TVs may also have their CRTs magnetized due to the electromagnetic fields associated with a lightning strike - similar but on a smaller scale to the EMP of a nuclear detonation.

Was the TV operating or on standby at the time? If it was switched off using an actual power switch (not a logic pushbutton or the remote control), then either a component in front of the switch has blown, the surge was enough to jump the gap between the switch contacts, or it was just a coincidence (yeh, right).

If the TV was operating or on standby or has no actual power switch, then a number of parts could be fried.

TVs usually have their own internal surge protection devices like MOVs (Metal Oxide Varistors) after the fuse. So it is possible that all that is wrong is that the line fuse has blown. Remove the cover (unplug it first!) and start at the line cord. If you find a blown fuse, remove it and measure across the in-board side of fuse holder and the other (should be the neutral) side of the line. The ohmmeter reading should be fairly high - well certainly not less than 100 ohms - in at least one direction. You may need to unplug the degaussing coil to get a reasonable reading as its resistance may be 25 or 30 ohms. If the reading is really low, there are other problems. If the resistance checks out, replace the fuse and try powering the TV. There will be 3 possibilities:

It will work fine, problem solved.

It will immediately blow the fuse. This means there is at least one component shorted - possibilities include an MOV, line rectifiers, main filter cap, regulator transistor, horizontal output transistor, etc. You will need to check with your ohmmeter for shorted semiconductors. Remove any that are suspect and see of the fuse now survives (use the series light bulb to cut your losses - see the section.

It will not work properly or appear dead. This could mean there are open fusable resistors other defective parts in the power supply or elsewhere. In this case further testing will be required and at some point you may need the schematic.

Jun 14, 2010 | RCA 27R411T 27" TV

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Have an insignia tv lost remote was wondering about codes for uni mote


Insignia provides codes for a number of universal remotes for your TV on our website. Click on the Support tab.

Apr 14, 2010 | Insignia IS 20" TV040919 TV

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27r410t no power


did you check that you are receiving a good hot (a consistent 110 ac) check the tv on a different outlet otherwise the chassis board has malfunctioned inside the tv. Probaly the flyback transformer which converts the 110 ac to thousands of volts to power the CRT (picture tube) which has failed more than likely. Usually the culprit after sustaining a surge from a lightning strike. Not worth the repair just replace go to your local pawn shop for a great deal on another used tv

Aug 15, 2009 | RCA F27664 27" TV

2 Answers

Insignia is-tv040919 remote codes


The Insignia is-tv040919 is a Cytron and the code is 11326. But no Comcast multifunction remote contains that code -- so you cannot enter it manually and the 991 search function will not find it. I discovered the make and code by the serendipity of having a cable box with a multifunction remote and several DTAs with the small, black two function remotes. I first installed the Insignia on a DTA and the remote programmed quickly. I just moved that tv to the room with the cable box with the multifunction remote and mayhem ensued. I got an $8 RCA 3 function remote today and it's working great on the Comcast cable box, a DVD player and, drum roll please, our old friend the is-tv040919.

Nov 01, 2008 | Insignia IS 20" TV040919 TV

1 Answer

INSIGNIA is-tv040919


you please let me know which IC is used in that ckt then i will let you know immediately
regards
manahar

Aug 31, 2008 | Insignia IS 20" TV040919 TV

1 Answer

Insignia IS-TV040919 color problem


The tv has been dropped or banged around, you can try to get a degaussing coil and fix the colors, if you cant pull them back out than it would need a CRT/Picture tube...in other words the tv would not be worth anything.

Nov 11, 2007 | Insignia IS 20" TV040919 TV

1 Answer

Cracking noise and flickering screen


Sounds like you have a bad flyback Transformer...Crackling is high voltage leaking. I would quit turning it on and replace the main board in the set if you are good at soldering you can replace the flyback transformer but cost wise it is easier to replace main board. 20" might not even be worth the repair.

Nov 02, 2007 | Insignia IS 20" TV040919 TV

1 Answer

Green Screen


check on crt board green amp transister and associated ckt should be short. or green drive transister,or main jungle ic which drive green signal is sure defective, i had the same problem in rca 32 inch tv for all screen red,replacing chroma ic solved the problem.

Sep 12, 2007 | Insignia IS 20" TV040919 TV

1 Answer

Lightning?


90 % of the time, when you get lightning damage to a tv set, its not worth repairing, because the chain reaction the surge causes. Its a matter of labor v cost of a new set. Ive seen brand new large screen tvs 1 week old get popped with lighyning and cause every board in the set to bur and blow out not only the printed circuit traces, but the ICs had holes in them and the transistors were blow apart. Luckly this customer had homeowners insurance and got a new set. With a lightning strick all you can do is start from the front of the power supply an work your way back till you get some life in the set. Now you could get lucky as I know panasonic uses whats called a thyristor type of a device that when a surge enters the set it shorts out the ac plug and pops the internal fuse and it will be black. You cant simply replace the fuse cause the thyrisistor is shorted. Also no one with no teleivision training should be inside a tv now a days as there are no user serviceable parts inside and theres way way more voltage inside these sets ,even unplugged then a dvd or satillite reciver. I would advise you to get a pro to assist you in this matter as it could if your lucky ,like i said before be a simple problem But i've seen peeps make a mountain out of a molehill. Good Luck

Jun 17, 2006 | Panasonic CT-36D11 36" TV

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