Question about Televison & Video

Open Question

Have a lg tv, mod #21fj4rb,came in for repairs.found HOT shorted out,replaced it & HV started to come out at top of FBT ,replaced it & then tv starts up for about four seconds &then shuts down.cheeks where made & found that the screen resistor&diode were blown,also found a transistor&30 volt zener diode& ABL diode defective,replace all components & still tv shuts down, i'm at my wits as to know what is the problem?can anyone help?thanking you in advance! vic

Posted by on

3 Suggested Answers

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,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

vljenterp81
  • 86 Answers

SOURCE: Toshiba model#: 32a33, chassis: TAC0303. STRG5624A

go to the nte website and download their quickcross. go to datasheets.com it will also do that. both of them are free.

Posted on Nov 10, 2009

  • 2 Answers

SOURCE: tv does not power up

I have seen the schematic, d982 is a 13v 1/2w zener
-GR

Posted on Jun 03, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

I have a LG CRT TV This tv tly back HOLDER HV cable sparking its very big spark - bulb HV cable connector ...not showing picture .show spark lighting ... how can fix this? what parts of trouble ?


Replace the FBT. Never switch on this set, any more; till it has been replaced. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Search the site by type in the brand name to your device, in the "Search box at the top right of the display window" to get gathered related posts.

Sep 29, 2015 | LG Televison & Video

1 Answer

Hot over heats


add more fans they sell those on ebay 4 pack that runs off ac outlet suck that hot air out faster

Jan 19, 2008 | LG RU-27FB30C TV

2 Answers

FBT partnumber help


Try to download the service manual to this set by internet. It has all details.

May 26, 2013 | Televison & Video

2 Answers

I have a 32" GE regular crt TV. Everything was fine and when I woke up the next day it would not turn on. Keeps making a clicking sound every few seconds like a solenoid trying to close..


Sounds like a probable shorted Horizontal Output Transistor (hot) Hopefully thats all. Sometimes the flyback will fail as well. If your not familiar with electronics I would recommend a tv shop repair. If its just the HOT transistor average repairs are 75-110 depending on your location.

Oct 17, 2010 | GE 32GT740 32" TV

1 Answer

No pix/sound, just high pitched whistle


Ur tv the high voltage it dead,the FBT,the flyback transformer.The big black block of plastic with a red wire with a black cap that hook up to the CRT(tv tube) is dead.The FBT,flyback transformer needed it to be replaced to solved this problems.Call the shops,take estimates for the best deal to do the repair.This is one of the main part of the tv to put HV in CRT(tube tv).It pretty hard to find this FBT these day,because of the discontinue of making of Amalog tvs.

Jun 06, 2010 | RCA 35V432T 35" TV

1 Answer

Picture is blurred were i am seeing multiple images in odd bright colors. when tv is on without cable box, there are a couple red and green lines across the top third of the screen


Your TV has a Convergence submenu. Verify that this menu is still present (use your user manual to locate it in the menu). If it is not there, you have a solder quality problem on your HV/Deflection board and a fuse has opened as a result. It will need to be repaired. I suggest NOT using the TV until this is fixed, as further damage can result.

If you are a DiY person: remove the HV board (left side with red anode coming from FBT), clean solder from the FBT connections, reflow the connections (make them look wet and shiny), check the fuses to the right of the FBT (there are 3, they look like little rust colored boxes), replace as needed. These fuses can be hard to get, the culprit is >500mA if memory serves me. Also, give a good inspection on the rest of the board for broken solder joints and repair as needed.

Mar 14, 2010 | RCA D52W23 52" HDTV CRT TV

1 Answer

Focus wire from flyback transformer lost position?


Yes, yoke plug in should be next to or behind FBT.

Dec 22, 2008 | KLH 13" TV

3 Answers

Won't turn on


Although the other response is in much better technical lingo, it sounds to me like the television had a high voltage arc which I have seen on quite a few of the sony big screens lately. Usually, it causes a part on the circuit board, (one of many that were listed on prev. solver's list) to fail. This causes a delimma for the repairman, because when they find the bad part and replace it, sometimes it will pop again causing repeat failure of boards and/or parts on the board. Sony is known for having bad tubes on their projection sets, and it can be a difficult repair even for a trained tech. I suggest calling a sony service center in your area, and get an accurate estimate before deciding if replacing the set is the best idea. Hope this is helpful input, Russmann.

Nov 15, 2008 | Sony KP-46WT510 46" Rear Projection HDTV

1 Answer

RCA D52W19 Flyback Transformer


This transformer does not come with the hv lead,if the arch is coming from the side of the transformer,cut the side of the plug were it goes into the transformer and the lead will come out,there is no voltage stored on the hv lead after the set is unpluged for a few min.,the transformer you can get at any rca repair center.

Mar 21, 2008 | RCA D52W19 52" Rear Projection Television

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

27 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74136 Answers

Cindy Wells

Level 3 Expert

5105 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

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

Answer questions

Manuals & User Guides

Loading...