20 Most Recent byD sign d:4222 42 in. EDTV-Ready Plasma Television Questions & Answers

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I bought 40 byd:sign 23" LCD screens from them about 1 year ago and installed them in a hospital enviorment. The sets are starting to fail. Do you have an address or phone number for them? I would be greatful for any help.

Respectfully

John Liljeblad
Amerisat, Inc.
858-505-1122

There is a place in the menu where you have to tell it /define what the inputs are to be. they will have a sub menu,
I don't have the manual to show you exactly.

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary. Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

I am assuming this is the board you need... I would take the old one out and see if it is the same part # first! Byd 40 4032 782 L40D11 6900 Terminal Board Unit

Refer its user manual for details.

Dumb answer, but have you turned down the thermostat to a lower setting?

first this needs to know if set has internal left and right speakers

It depends on the TV (make/model). Do you have an Input or Source button on the TV? Then you can use that button to change your input. A few models will offer an alternative option to change the source from the menu and have a Menu button on the TV. (Some TVs only let you change the source from the remote.)Some remotes are available from the manufacturer's parts store (Sony, for example). remotes.com has the exact original or a replacement remote for many brands. For other TVs, a universal remote may work. Look for a higher end universal remote with a Source or Input button. Then test all of the codes for your TV brand. (Some codes may only enable parts of the remote functions; make sure you find a code that lets this button work.) The remotes that can be programmed with a USB connection to a computer are the easiest to set up for this situation. Please add a comment with the specific make and model of your TV; I'll try to find a source for an exact replacement remote. Cindy Wells (some really old TVs let you swap from AV1 to AV2 to channels by going up or down through all channels to reach a point where you could swap the inputs.)

No pictures can be due to no 24vdc for the backlight, bad T-CON board (have backlghts but no pictures).
Please try below first:
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board. if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having. If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on: 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: http://s807.photobucket.com/albums/yy352/budm Learn about bad caps: 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. 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.

Most of the flat pannel tv have a standard D shaped removeable cord. all most all computer pc's use the same cord. they should all be three prong. unless you are not in the usa. Most people will have atleast one of them around. good luck.

The most obvious reason is an overheating issue in the Power Supply board. There are other ideas here, but you need to take it to a television engineer to diagnose https://www.google.com/search?q=television+will+suddenly+turn+off+every+4+minutes ..

Check the internet connection. The television can't update if it can't see the internet. Resetting it breaks the previous settings. Just for fun, reboot the router as well and wait 15 minutes until all the lights come back on. Then reestablish the television connection to the router. Harwa is not a make we know here in North America. https://www.google.com/search?q=Harwa+Smart+television.+How+to+restore+Apps ..

general steps: Get the TV remote control and push the "Menu" button and select "Options". Select "Child Lock" from the "Options" list. On some televisions, the "Child Lock" is named "V-chip". Choose the "Remove Child Lock" selection. Highlight this and then hit the "Enter" button. Enter the four-digit code that you used when you activated the child lock feature. If you cannot remember it, your only option to deactivate the child lock is to reset the TV. The instructions for resetting a TV is written on the user's manual of the TV. Exit the TV menu once you have entered the four-digit code. To do this, press the "Exit" or "Menu" button on the TV's remote control. If you don't have a remote, you might try leaving the TV unplugged overnight. Some TVs will 'forget' their settings if left without power for a long period. You could also potentially buy a cheaper universal remote, and use that to turn off the child lock.