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Tcl 21276 vertical ic number - Televison & Video

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SOURCE: Television TCL 21276 no power

check power @ outlet,then check for fuse,then replace flyback

Posted on Feb 13, 2010

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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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My set is having a vertical fold over. I can`t see the upper portion of the picture. It has also a vertical retraces and a white horizontal line on it`s center..I replaced bulged electrolytic capacitors...


Hi
Please check the DC supply voltage applied to the IC. If it is higher than the specified voltage, replace the filter electrlolitic capacitor near the rectifier diode. This circuit is generally located near the flyback transformer. If this does not work the vertical deflexion coil on the CRT neck is probably defective.

Sully

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maybe vertical ic be came hot and make some lige unconnected in board have to go to tv tichnican

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Can you please check for any jammed buttons on the remote and/or control panel? Try switching on the TV manually, while removing the batteries from the remote. If you notice same problem, the area to be looked into is around the system control area: like dry solder, leaky/dry capacitors and this should be done only by a qualified service technician.

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The vertical sweep output section circuit has the fault. Locate thhis section on the main board, and look for any loose solder terminals. If have, resolder all the suspected solder terminals by applying a little more fresh solder. If this do not hep you, replace the vertical output IC.

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1 Answer

I have a problem with tcl model 2027u. The vertical ic easily gets hot and will explode after several minutes. All the voltages in the vertical circuit seems to be normal. I replaced the def yoke, the...


I don't have the circuit diagram in front of me, but I would suspect a shorted or leaky capacitor in the output circuit. Another possibility is that the heat sink is inadequate or something is amiss with the thermal interface between the IC and heat sink.

Is the vertical waveform normal? Put a convergence pattern up and see if the grid is linear from top to bottom. This could give you a clue.

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1 Answer

Television TCL 21276 no power


check power @ outlet,then check for fuse,then replace flyback

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1 Answer

Problem with TCL Television


I have also a problem regarding the TCL-2027 the trouble is half screen.I replace the vertical IC together with all neighbor capacitor but same problem unsolve.so please help me asap.and what
is the service mood of TCL-2027.just send your help at jurie7@yahoo.com.

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