Toshiba 42HL167 42 in. LCD Television - Answered Questions & Fixed issues

Try self taping screws. Get a couple sizes and use the smallest one that holds securely.

If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors - Flickering screen - Screen image disappears after several seconds - Dim screen - Slow start - Power LED on, but no picture - Unusual colors and/or lines The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad. If they appear bulged on top, then they need to be replaced. New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years. Check the cables, connectors and connections. Take it to a repair shop.

This could mean that the tuner board is bad. By saying "no image", does that mean that there is snow on the screen (i.e. from no signal received), or simply a black background or distorted image from bad reception? If the menu is displayed than that means that the image driving circuitry is working correctly.

Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/

I found it!

I managed to fix it by reloading the firmware.

I posted detailed instructions on my website at:

http://www.benjammin.net/www/pages/techtips/Toshiba-Regza-42HL167.html

I hope this is still useful for others. It's so embarrassingly easy anyone can at least TRY it before calling a tech if they have any friends that are computer savvy.

-Ben

Check its speaker. If it is OK, check and replace the audio output card. For more details, search for this site by google. You can locate this electronics equipments repair help site, either at the bottom part of the first search page, or at the to pr the second.

Google the model number to see if available on the internet (model number and base or pedestal) .Best way here would be to call Toshiba's customer service hotline to get a part number and price and availability----with the part number you could also direct search with GOOGLE TO SEE if someone else has one.

What is the sein Board? I'm guessing you mean the signal board since you are also talking about updating the firmware. Signal boards are not too hard to replace on an lcd TV depending on your abilities. You can do a search for a service manual on the internet it will give you detail instructions on how to replace the board.You can get parts at www.interliquidparts.com

Contact the mfc . It is still under mfc warranty. If you did not impact the screen mfc may pay for repair.

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.

You need to replace your T-com board. Not very expensive.

you need to set the tv to air instead of cable..............

there are screws in the back holding it

www7.toshiba.com I have it but it's too big for here!

your tv's pictures tube are creating the problem. contact with the tv brand customer services center for the repairment of your tv

You can access the SD slot without having the back cover off of the TV. The SD slot is covered with a L-shaped bracket held on the TV with a single Phillips screw. The plate is located in the recessed part of the back panel to the right of the HDMI port. Good Luck

Unplug,replug the tv about an hour later.Let the tv reset itself back to factory setting.The tv should work now,not than the power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

hi, it should have one buy you may not see it if you look at the back of the tell you see the part towards the bottom well look their and the ariel goes in from under instead of pushing strait into the back of the telly it goes upwards into the back of the telly, have a look you should see what i mean, it so you can have it flat on the wall if it had the socket in the back going inwards like the old tellys you wouldnt be able to have it flat on the wall so the socket goes in either from one of the sides or upwards.

you should find it

let me know if you need further assistance ok

plz rate this solution as i have a whole page of unrated posts. thanks

Either the 24vdc power supply problem or shorted out backlight inverter board, you will need in-depth troubleshooting to narrow down the problems.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Hello,

Problem is in either power supply or - my bet - the Y-Sustain board.

The Y-Sustain is a relatively large board out of which go connections to the side of the display; it's therefore closer to either the left or the right side of the display, has at least one rather large heat sink on it and fat power cables connecting it to the main power supply.

Often there are fuses on that board - one or more. Check those.

if they are blown you can try to replace them, but expect them to blow again - usually the whole board needs to be replaced.

Good luck in solving the problem.....