20 Most Recent Toshiba REGZA 42WLG66 42 in. HD-Ready LCD Television - Page 5 Questions & Answers

type name of model on ebay.com and size to see if they have a replacement screen should be kinda cheap

It's hard to pull teeth over the net, however, I would suspect the power supply panel first. You can disconnect the inverter module and see if you get sound back. If its a high end set then the power supply will detect what you have done and not let the set start up completely but you will notice a change in the relay cycle. That will tell you that there's a short on the inverter board.

HelloJust connect the set to an external antenna, and make an autotune function. You can get details about, how to make an auto tune, from its user manaul.

Use Screw Driver or wrench...

Hellohttp://www.fixya.com/support/r8733688-common_faults_in_infrared_type_remoteGo to this link, and check your remot for its proper function first. If the remote is OK, the fault will be with TVs remote sensor, which is inside it, and have to be replaced. OK.

HelloJust unplug the TV from AC mains socket and left it for 10 minutes. If the fault is due to a reset problem, this must resolve it. If not, the power supply of your TV is faulty. To proceed with, you must have knoledge in electronics, and have ability to follow the schematic diagram of the TV. I've the the proceedings to do all the service work to your tV, and all are in PDF format files. I can't send it to you by this window, as it does not allow me to upload PDF files by it. If you have confidence that you can do the sork by my assistance, inform me. I hereby attached the picutre of power supply board, that will be inside in most of the Toshiba WL series tVs, for your attention. If you want further assistance and all other documents and repair steps, you have to buy one amoug my services advertised by Fixya, on Fixya site and Google. I can't send any PDF documents to you to assist hereby, as Fixya must establish a link between us. According to new Fixya site, all are likeways. On the former site, you may have put this add as a paid post, and anyone may have attent to it, but now, the customer has to choose any experts as his like. Just do what you decide. OK.

Good. Day!!! That problem is usually cause of bad inverter board... Please try to replace it to fix your TV... Hope it helps.. Thanks for using fixya..

Hello,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board. You might be lucky it's just a blow fuse. Also a defective transformer can cause your TV not to power on.

All these can be checked on the power supply board.

But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Regards.

Inspect the power supply module first to see if you can locate any blown component, that will be the first step.
Please read my guide to learn more before DIY repair.
Basic LCD monitor and TV troubleshooting guide: http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting http://www.fixya.com/support/r7406380-tv_training_manuals Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague Parts: www.shopjimmy.com Parts: http://interliquidparts.com/ Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps. Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series. Please post back what you find.

Be sure you have the correct video line in the proper input (one. two or three, etc). This would be the yellow line, if you are using them. If you feel this is not the problem, you may have an inverter that is not lighting up. This is some what costly, and should still be feasible for repair. I do not have a model number, so I answer this as briefly and simply as asked. Thanks for asking and show all hands of support!

This is most likely a main/signal board problem. needs replacing.

Hello
Check the remote control for its infrared emission first. You can check it with the help of a cellphone with camera. Eventhough human eye cannot detect infrared rays, electronic cameras can. Put your cellphone to camera mode, place the remote control [ replace its batteries with new ones]; at about one feet away from the camera lens, and press each button on the remote control. If infrared emission is there, you can see its image on the cellphome camera screen. If there is infrared emission for all button press of remote control; the infrared sensor inside your TV is faulty. It should be replaced with same type and number. If there is no infrared images, the remote control is not working, and should be replaced. Check the battery contacts of the remote battery compartment for any rust or dirt. Clean it well before replacing new batteries into it. OK.

You will need to obtain a replacement panel. I recommend shopjimmy.com they stock parts for many units. You may be able to find one on ebay also. I see them available there from time to time with issues like no power or audio issues. The set's are fairly modular on the inside so you could possibly take the power supply from your unit and fix another one to use

Hello,

Connect your TV to a DVD player. If there is still no picture, it means the display inverter of your Tv is defective.

The display inverter is what makes the TV brings picture. Since the TV is no longer bringng any picture, the display inverter is the first thing that needs to be checked as it is most likely the cause of the problem.

Please give me feedback if you need any assistance in locating or identifying the display inverter.

Your sincerely.

Elect_Comp.