20 Most Recent Acer AT4220B 42 in. LCD TV Questions & Answers

no modern set has a vertical hold control, last ones were nearly 40 years ago. what is set doing or not doing?

Sounds like not only is your backlight going but you have a bad case of dead pixels. You can do 1 of 3 things...

Turn your unit in under warranty for repair

If your unit is no longer in warranty you can brave taking it apart and replacing the glass unit and back lights yourself... Find the make/model of the screen after removing the plastic casing and type it in on either of the bottom sites,

www.sparepartswarehouse.com
www.laptopscreens.com

Or last option, sell it on ebay and lie lie lie about the quality of the unit and make sure that somewhere on the listing you put as is

You will need to do in-depth troubleshooting, it can be the power supply problem due to bad caps, or main board, or backlights inverter board.
Please read my guide to get basic understanding first.
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 pictures: 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.

While this site does ask for an email address and has an image security validation (you have to type the numbers shown) I believe you will get the manual in a pdf format.

http://www.retrevo.com/support/Acer-AT4220B-TVs-manual/id/843bh147/t/2/

Good luck

This tv have a 2 long boards call the LCD inverter boards.These 2 long LCD inverter boards are dead.These 2 long LCD inverter boards help the LCD screen panel to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy a 2 refurbishes long LCD inverter boards for the replacement.

AUXCILARY OR AV

Hi


Thanks for using FixYa. From what you have described it seems that you might have a backlight issue with this TV set. It could also be due to the inverter circuits for the backlights. The inverter is the power supply source for the backlights. There could also be a screen driver problem; if it is then you have to change the entire board. All this is only recommended if you have some kind of expertise for checking the internal circuitry of the TV as these units have high voltages running even when the set is switched off.


Please do accept the solution if the issue is resolved or else revert for further assistance.


Thanks
Rylee

you should get in contact with customer support for a possible replacement , try this link,
click here:
http://www.partmaster.co.uk/cgi-bin/catalogue.pl?section=159190&link_parent=159196&path=99178

Refer to page 129 of service manual Acer Aspire 5332, 5732Z - Sevice Guide. www.s-manuals.com.

Help in the link, but you probably need dealer service. https://www.google.com/search?q=Acer+X110P+does+not+light ..

Hi, Please start by switching the outlet that you use to power your projector. If you're not currently plugging the projector into an outlet but using a power strip, you can test that the power strip is still functioning by using it with other items. Thank you.

check the mute button

As Bob Myers mentions, the question can't be answered unless you explain which video output the camera has. The solution for a BNC CCTV camera would not be the same for a PoE IP camera. Provide that information, and we can suggest hardware that would connect your TV sets and project to the camera feed.

If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Statistical Process Control TrainingAll Acer TV models use the universal Remote Control code NEC 18E7, which most of universal Remote Controls can use. We recommend using the search function, available on most universal remote controls, to find the compatible code for your Acer TV.