SKYWORTH 29T66AA 5T36 Machine Strange Failure Consult the Master!!

Hehe,It's up to me to repair the Skyworth machine.,I'm a Skyworth engineer.,Hehe.。

Check whether the power supply pins of the large TMP8829 are short-circuited, if not, check whether the bus pins are normal (the normal value is about right), and if it is normal, check whether the TA1343 pins are normal.

You can disconnect the bus pins to determine which bus load is faulty.

If you can't find the fault point, then you can change the 8829 to try it, the voltage increase has the possibility of breaking down a large block, and the crystal oscillator and memory will not be damaged if the voltage is high.

Have you measured the power supply at all levels? There are also large blocks of the voltage of several power supply pins, if it is normal, eliminate the fault of the bus, and change to TMP8829

The power supply voltage is too high, and it is easy to destroy the 400V capacitor.

At present, there is no light on the start-up, and the focus should be on the visual amplifier voltage.

Power on with remote control (or local key), it's normal.

I think it's redundant to rewrite the data.

If you can't find the problem on the video amplifier, it is better to let the user find another master.

200 points is very attractive, come and join in the fun.

Is there really no problem with the power supply 130v? Generally, if the voltage is too high, the first thing to bear the brunt of is the fault of the power supply regulation circuit, remove +b, connect the false load, and see if the voltage is stable. If the power supply voltage is stable, the switching power supply vibrates normally, if it is unstable, the switching power supply has other components damaged.

Check that there is no problem with the power supply, in order to check the line scan circuit, do not move the accelerator pole first, should check whether the high-voltage package current is normal, whether the line tube is normal, the screen can not be opened, and whether there is a problem with the reverse capacitor. It is estimated that the possibility of the problem in the power supply is large, and the power supply circuit should be investigated, including the power supply of the remote control circuit.

On the right side of the screen there is a bright bar 15-20 cm high and 1 cm wide, with a reddish color - like a problem with line scanning.

Since the power cord is connected wrong, there must be a problem in this regard, and the circuit board should be cleaned and dried with alcohol first, otherwise other problems will occur!

Your problem is like the lack of other voltages in the mains output, affecting the brightness signal, and also check the ABL circuit.

Summary. Hello dear! We will be happy to answer your questions! Here you can find out:

If we are in **TV program,At this time, Skyworth TV suddenly began to restart itself,There is no response after restarting,Then at this time, we must first check the components of the TV,Because once the components are damaged,It will cause Skyworth TV to not turn on,If this is the reason,Replace the components in time。 In addition, if the components are not broken, then we need to measure the secondary power supply, if there is a problem with the output of the secondary power supply, it may also cause the above phenomenon, at this time, just change a power supply, and the TV will restart successfully.

SKYWORTH 29T63AA line does not start fault.

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Hello dear! We will be happy to answer your questions! This orange sensitive side for you to find out:

If we are in **TV program,At this time, Skyworth TV suddenly began to restart itself,There is no response after restarting,Then at this time, we must first check the components of the TV,Because once the components are damaged,It will cause Skyworth TV to not turn on,If this is the reason,Replace the components in time。 In addition, if the components are not broken, then we need to measure the secondary power supply, if there is a problem with the output of the secondary power supply, it may also cause the above phenomenon, at this time, just change a power supply, and the TV will restart successfully.

Dear,If the power supply is not displayed when we turn on the Skyworth TV,At this time, it may be that the protection circuit of the TV is faulty,We need to replace the safety tube of the TV,But if the screen is not lit,It can be a phenomenon that there is a problem,At this time, it is necessary to let professional maintenance personnel overhaul。 In addition,If the Skyworth TV can't be turned on,But the power light of the TV is always on,Yan Nabi is likely to have a broken remote control,At this time, you can try not to use the remote control,Just use the control button of the TV to turn it on。