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Tcl tv repair

My TCP 21189p, when turned on, menu settings is viewed. Buttons not functioning including remote. No sound. I clean d micro switches still same. Solder components, solve BT wen I turn it off and on, it return to its same problem. I nid help plz

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  • TCL Master
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It sounds that the main system control memory IC is faulty. Replace it and check. This is a very cheap to buy IC. Eventhough its cost and size is small, the function of it when the set is switched ON, is great. It is a very small IC, having only 8 solder terminals. 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

Posted on Oct 12, 2013

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Posted on Jan 02, 2017

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  • 362 Answers

SOURCE: Can not access menu or input functions

Hi rduncan27,
I will be happy to help. 88% of LCD tv problems are with the backlight, the symptoms you described indicate a probable inverter malfunction. Lets do a simple test to check the functionality.

  1. Get the tv to a point that it is producing sound.
  2. Take a flashlight and shine it on the screen.
  3. Look very closely for a dark video image.
Let me know your findings and we can proceed from there.
Lone99star

Posted on Jan 26, 2009

  • 6 Answers

SOURCE: no picture

I purchased four 2200uf @ 25v capacitor’s for $8 at that same repair shop. I upgraded to 25v because these will run cooler. The tv came with 10v Samxon caps that seem to be problematic in all the units they were used in. Do not buy Samxon if you do this yourself.... I opened the set by taking off the plastic back panel and then by removing the second metal panel. There are three boards and a hard drive. The board on the far left just above where the plug goes in is the power supply board. There are five data cables and one red power cable attached to it that can be removed simply by unplugging them. The board is fastened to the unit with five small screws, one on each corner and one in the middle of the right side. If you look for three green capacitors grouped together around the middle of the board and slightly off to the right, you will probably see one that is bulging out at the top. This is most likely "C235", the main problem. The other three caps that need replacing are C202, C201 and C219. C219 is closer to the top part of the board.....
The process to replace is simple, believe it or not, and it could save you hundreds of dollars. 1, Go to RadioShack and buy a cheap soldering iron and a small roll of solder. 2, Buy four, 2200uf @ 25v capacitors, online or at an electronics store. 3, Plug the soldering iron in and let it heat up. 4, Locate C235 on the back side of the board and mark the negative terminal with a felt tip marker (you want to make sure that you put the negative terminal on the capacitor through the right hole, otherwise you will pop the cap. The negative terminal is clearly marker on all the capacitors). 5, With needle nose pliers, grip the cap and pull down while heating up the terminals. The cap will eventually come out. 6, Put the new cap in (you may need to heat the solder that is left on the board to clear the hole so it can push through). 6, When both terminals are through, bend them slightly so it stays in place. Take the solder and stretch out a few inches off the roll and while holding it in one hand, lightly touch the base of the terminal where it comes through the board, with the soldering iron and the solder at the same time. --- Try not to use too much solder.. you only need a tiny drop. This will solder the cap in place. 7, cut off the terminals close to the board with some snips and repeat this on the other three. 8, put the board back in, plug in the cables. Test the TV before putting the back panels on. It should work fine if all went well..... If you hear a pop than you reversed the terminals on a capacitor and that one will need to be redone correctly.... This might sound lengthy and potentially difficult but its worth a try. Otherwise you can pay someone to replace the entire board for BIG BUCKS with the same junk caps on it and have the same problem in a year or so. LG doesn’t want to take responsibility for this and I'm sure that it has cost a lot of people a lot of money for about $8 in parts........... This worked for me and it can work for anybody with the same problem.. Good Luck!

Posted on Apr 28, 2009

  • 1 Answer

SOURCE: vizio remote control not working

Wow, I feel stupid! Solution #2 did it! There are 2 Tv buttons, one on the top right and one on bottom right. You have to press the bottom one!! THANK YOU PPL!!!

Posted on May 25, 2009

  • 1 Answer

SOURCE: TCL LCD TV. No sound on one channel only.

I had the same problem... try toggling through the "SAP" (multilingual audio feeds) for the channel. Mine was somehow set on "audio 3 of 3" for that channel, but there were only 2 audio feeds.

Posted on Jul 20, 2009

  • 5 Answers

SOURCE: no response to any button on remote or tv except power button

Press the 'Favorite' button on the remote. You may have accidentally pressed it. It locks the channel. Pressing again unlocks.

Posted on Aug 22, 2010

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How to unlock tcl tv. My tv turned to child lock. I dont have the remote help plss


Go to Google, and type in, 'how to disable child lock for TV model #' (type in the model of your TV); or you may be able to utilize the buttons directly on the TV that would allow you to access the menu that would display the option to disable the child lock function.

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I have my remote for my tcl TV but it will not


There must be a line damaged, check the lines connected from program functions on remote PCB. Or buttons and board contact points from channels are out of carbon. Resoldering the function IC also can cure that problem.

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Unlock TCL-21276 child lock without a remote please help


Okay Welkins, try to power of the tv and power it on by keep on pressing POWER-BUTTON and MENU-BUTTON at the same time,... and see if the tv start into de menu mode....if it does...just keep on using volume "up and "down" button combined with channel "up" and "down" buttons to select an reach the UNLOCK-MODE...most of the time the MENU button will be the enter button after each sellection....hoping to inform you correctly I remain,Yours Friendly.

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1 Answer

Have power (backlite) but no screen (menu or any control from side buttons) will not turn off.


Try disconnecting the tv button pcb interface connection to the mai board once switched on and try using your remote control functions. If there is still no menu or functions, this cancels out the buttons pcb, and the fault is the main pcb.The voltages are ok which you mentioned..12v..5v and the 24v invertor feed voltage so it will be the main pcb..If you had sound and remote functions i would have said it may be the Tcon as well as the main pcb.
If the remote works ok with tv buttons pcb disconnected, then the problem is the buttons pcb.However, you have no picture..i presume nothing at all including 'no signal message or menu screen'. Therefore, with no bulging caps and correct votages to the main pcb, you will be right to change the main pcb.
PLEASE DO NOT CARRY OUT ANY ELECTRICAL REPAIRS IF YOU ARE NOT COMPETENT TO DO SO..ALL MAINS PARTS ARE DANGEROUS..GET A QUALIFIED TV ENGINEER TO CARRY OUT ANY REPAIRS IF THIS IS THE CASE.

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I have a Mitsubishi WS-65909 w/a steady blinking timer light. Steps I have tried to correct include: System reset for 10 seconds (after I left unplugged and disconnected from ALL attached components for 24...


Only one of two reasons for your problem--either the DM is bad OR:

These sets sometimes develop a problem with the front keyboard---micro switches in back of the plastic buttons can fail (reset one is common).

Remove front speaker grill and inspection plate behind it and follow the group of wires coming down from the front keyboard to the right top edge of the opening.

About 8 inches to the right you will find two plugs that are inline--they go to the keyboard--disconnect both and turn set on with REMOTE (remote receiver is behind the screen).

If the set now functions you have a bad micro switch on the keyboard (most likely the reset) and two choices---either leave the keyboard unplugged and just use the remote or remove entire screen and get at the circuit board and locate and replace defective micro switch.

Lots of people miss this as a possible choice--easy to do to either know it is the keyboard or not.

If set does not operate this way DM is bad regardless of how caps look.

SD TECH0d60ab8.jpg

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Tv wont turn on. toshiba 37c3030d


The internal power supply has died. take it to a repair facility.

Aug 13, 2009 | Toshiba 37C3030D 37 in. LCD Television

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Parental lock


Child Lock

Combos
--Should have original remote. Press and hold the power button for 6 to 10 seconds


Combo Model T25208, V-Chip Forgotten Password
If you forget your password, simultaneously press VOLUME down on the TV/VCR front panel and the 0 number button on the remote for a few seconds. This resets the password and you can enter a new one.

Combo Model 13TVR62, V-Chip Forgotten Password
If you forget your password, press STOP/EJECT on the TV/VCR front panel and MENU on the remote simultaneously. This resets the password, but not the limits you’ve set.
Televisions with Parental Lock Feature


If you forgot your password for this feature, press the following buttons on the remote, one at a time. (Note: You must be in the password entry screen) Press, Mute, Display,Clear and Reset, this unlocks parental controls and you can now re-enter a new password.
OR TRY THIS..
Press and hold Menu on the TV AND volume down on the remote for 3 seconds. Nothing will appear on the screen, and the Parental Controls will unlock, and you can re-enter a new password with the LOCK PARENTAL CONTROLS

CTC169AU
Channels that have been locked can be viewed only when the PARENTAL CTRL function is set to OFF. This can only be done with the remote control-it can not be changed with the buttons on the front of the TV.

Therefore, after you turn on PARENTAL CTRL, you simply hide the remote control so that your children can not watch the locked channels. The locked-out channels will remain unviewable even if the TV is unplugged or the channels are autoprogrammed again. The only way to view locked channels is to use the supplied remote control to set the PARENTAL CTRL function to OFF.

The PARENTAL CTRL and the CHAN CTRL functions work hand-in-hand. The instructions below will first tell you how to turn parental control on or off with the PARENTAL CTRL function and then how to lock desired channels with the CHAN CTRL function.
1. Repeatedly press MENU to select SETUP MENU, and then press + or - to display setup functions. Repeatedly press MENU to select the PARENTAL CTRL function. . When this function is set to ON, PARENTAL CTRL is activated and any channels you locked with the CHAN CTRL function will not be viewable. . When this function is set to OFF, PARENTAL CTRL is deactivated and all channels are viewable.

2. To lock channels, press the MENU button to select the CHAN CTRL function. Select a channel you want to lock by pressing CHANNEL up or down. Then press +. The CHAN CTRL setting will change from NORMAL to LOCKED when that channel is locked. To return the channel to NORMAL, press the - button. Repeat step 2 for each channel you want to lock. If the PARENTAL CTRL function is set to ON while you are locking out channels, each channel will go blank as you lock it. When the PARENTAL CTRL function is set to ON and a channel which has been locked out is tuned, the TV will display the words PARENTAL CONTROL to let your kids know you have locked it.

CTC185's
If the front panel function buttons don't work, (menu, ch up/dn etc.) but the functions work normal with the remote, enter the "Channel" menu with the remote and turn "Parental Control" off.

CTC203's
In the event you have forgotten your password, perform the following procedure:
Press and hold for 3 seconds the TV button on the remote while pressing the menu button on the TV.
This procedure will turn off the parental lock and erase the previous password .

Another Possibility To Try For Various Models: If TV's in the Parental mode and askes for a password that's forgotten, Press menu on the TV, select Parental Lock #4 on menu, then with the remote press Mute, Display, Clear, and Reset buttons in sequence.

TX808 Chassis
If Parental Controls have been set and you don't know the password, do this:
Press and hold the volume down and the channel up buttons at the same time for 5 seconds.
Now you can reset the password to 0000, and using that password you can now access the V-Chip menus.

TV's (Made by Daewoo or possibly Apex, ie. GE model 24GP653)
The factory default pass code of 6688 is also the override code, in case the owner forgets their pass code. If that doesn't work, another place in the owners manual says to push Function and Mute on the remote at the same time. Function is the top right button.

Mar 26, 2008 | RCA TruFlat 27F520T 27" TV

2 Answers

CODE FOR TCL TV UNIVERSAL REMOTE CONTOL-CHUNGHOP RM -133E


If you don't have a code you can do these steps to get your universal remote working with pretty much any tv:

1.) Turn your TV on. Then on your remote press the set button, it's the small gray button above the green button that says TV.

2.) Press the TV button. There should be a red light to the right of the SET button. This means that your remote is ready for the TV code.

3.) To find the TV code, press the + or - on your remote. This is located above the orange buttons. Once the volume on your TV goes up or down, stop pressing the + or - button.

4.) Then press the SET button again to set that code for your TV.

If the above steps do not work, keep trying. It will work! ;)

Jan 30, 2008 | Televison & Video

1 Answer

How can i get my tv to stop automatically changing to menu screen?


slapshot,
What you have there could be one of three possibilities. Micro, eprom or tact switches... Tact switches are the small contact switches behind the buttons you depress to turn the volume up and down or change the channel. Sometimes these small switches can become contaminated or breakdown due to corrosion. What we call in the industry a windex syndrom, because the older crts on some models had the swiches exposed just below the lower ridge of the cry where when cleaning the screen windex could drip down onto the switch and cause the corrosion to begin.
Eprom is another likely suspect. This Ic is responsible for storing an array of information including customer settings and other logics convert what the eprom stores into electronic pulses for any number of fuctions. For example press the volume down on your Tv and the eprom has the information to show you the volume bar, the level the volume bar was last set at and the increments at which you are reducing it realtime.
The Micro is another possibility. It acts like a traffic cop engaging various circuits to do or not do something according to a preset list of conditions. Timers, looking at a particular input or yes even bringing up the menu is tasked through the micro controller Ic or micro for short.
The fact that you can eventually get the unit to operate suggests that something in the logic circuit is failing and will in all likelyhood continue to do so until eventually it doesn't work at all...

Nov 14, 2007 | Televison & Video

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