20 Most Recent Sharp LC-19SB25U 19 in. LCD HDTV Questions & Answers

To make it a factory reset, you have to enter its service mode option. 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/ Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done. NB: Please read and understand well, the instructions to enter the service mode, before you begin. Be very careful. Note how to "EXIT" the service mode; after entering and adjusting data. This is very important.

Turn down the volume

I have an opc light that stays on. My cable channel input will come on briefly then picture and sound shut off but the dvr works just fine.

Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. 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/

Check whether there is any sockets marked as line-out, at the back of the set. If yes, you can connect these sockets to an external amplifier to make audio more louder. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter". http://electronicshelponline.blogspot.com/

Check its speaker first. Connect an other known good speaker, after disconnecting the wires to the speaker inside, and connect it to external ones, and switch ON the set, and check whether there is good sound with external speaker/s. If OK, make sure that the internal speaker has damaged, and should be replaced. If there is distorted sound with external speakers too, check and replace damaged component/s at its audio output stage circuit. If you're sound in electronics, and if you wish to get more details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Time slide, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name/model number/IC used, in the search box at the top right of the display window.

I did it yesterday and it took longer than doing the repair! With the stand removed along with all the screws, start at the bottom to split the case apart with a wide thin tool. I used a 3/8 inch wide flat xacto blade. The case has interlocking tabs to keep it together. Maybe not meant to be opened, ever. The bottom and sides opened easy enough, the top was a bxxxx. Wiggled and forced, pressure one way or another and it finally opend. Did the repair and pressed the 2 halfs together.

To do this, you have to enter its service mode option. If you wish to get more details about this, check this site. http://electronicshelponline.blogspot.com/ Pull up previous posts by its left sidebar, or type in the brand name and model number to of your set, to its search box, and press 'Enter' or view it in Mosaic / Timeslide option.

The picture position is misaligned. Adjust it. For more details, check this link. http://electronicshelponline.blogspot.com/ Pull up previous posts by its left sidebar, or type in the brand name and model number to of your set, to its search box, and press 'Enter' or view it in Mosaic / Timeslide option.

Hi

Check if all the necessary cables are correctly connected. Please check if the cable contains the digital TV signal supplied by your cable TV service provider. Please make sure the correct signal source is selected: Press the "menu" button on the remote control, select "External Input", and choose the correct signal depending on your using environment.

Please view this article to get more details:-

http://www.ehow.com/how_6041027_fix-snowy-screen-satellite-tv.html

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Audio but there is no picture or brightnessThis is a common issue in many LCD or Plasma sets and it does not have a common solution. In most cases you need to first check for missing voltages on the power supply board and for damaged filter caps there. If good voltages exist then look elsewhere.LCD (not projection) sets often use a back light to provide the light source for the screen unit (display panel) so confirming that the voltage for those is first-if the back lights are being used but not on it is either no voltage, not being turned on by the set, or bad light unit/s.In these sets there are also boards that "Drive" the panel itself. Usually the set will use two boards (some combine both into one large board---names vary but are Inverters, Y-boards (Y means video) T-con boards etc. Usually in this case only one half of the screen will be black but it is possible for it to cause a total loss of brightness also.Plasma sets are similar to some degree but with no back light in most cases.Trouble shooting can be tedious and expensive-Taking one of these sets apart requires some skill as one wrong move and the Display panel can be instantly damaged which is fatal from a repair cost point of view.Other possible solutions include but are not limited to physical problems---loose plugs or connections between boards (look for any plugs held down with tape where they plug into a board). A lot of people with problems play the guessing game-buy and try a board after research which can get expensive and may not fix the set---To gamble or not?I have seen sets where every single board was replaced and set still did not have a picture-means display panel is the problem.The problem can even be the "main" board in some cases -it controls the communication with the panel and if faulty can cause issues.Aside from checking voltages, connections etc. there are a few other considerations---The problem can be the display panel itself---Part cost for that is more than the set cost when new.The panel connects to the boards that drive it with either a multi-pin conventional plug or a RIBBON CABLE.The worst case is if the problem is a ribbon cable etc. bad or damaged INSIDE the panel where it cannot be got at.That means if the case set would cost too much to repair.The connectors where the cable attaches outside of the panel can also develop dirty or loose connections.Fans in units that use them can be an issue if dirty or not moving.As you can see (or not if no brightness) the problem sounds simple but has many possible different causes.Let me know if you have questions as I am here to try to help.SD TECH