The remote control switch of the factory gate is not good, which makes the motherboard circuit probl

You'll want to see if your host has a learning feature. If so, you go to the manual and try it again. "Some learning programs have them on the motherboard, "If it doesn't work, you have to go to the warranty."

You don't want to be fooled by the main pole feedback remote control signal LED2 light flashing. As long as the frequency is the same, the board where any remote control will make the LED2 light flash is digital. The host only recognizes the password but not the frequency.

It can be used manually, but the remote control cannot be used, which means that there is a problem with the remote control. One is the remote control and the other is the remote control receiver. If you don't know anything about electronics, it's best to find a manufacturer. This problem is not very big.

If you know electronically, you may use an oscilloscope to test whether the receiver has received a signal, and if there is a signal, it may be that the remote control is mistaken, find the original one. If there is no signal, you can only find the manufacturer.

You can try to change a remote control, if it doesn't work, that is, the inductance of the induction coil has changed, so it is not sensitive, you can find someone who understands to adjust it, well, this may take a lot of time, sometimes it is related to luck, if you want to be fast, find the circuit drawing, and then take the inductance coil down, go to the maintenance place to debug its inductance to the same as the drawing, the problem should be solved.

It is not recommended to adjust it casually, if it will not be adjusted, there may be even a job that can not work, can only be used manually.

I help you can't find the information of p87c52x2ba on the net. But it's hard to judge just that. What's more, many brands are different.

If so, share it.

You don't have a remote control receiver circuit part and a remote control part in the picture, and I don't know what you mean by not being good, it's not sensitive? Close? Serial bits?

It is not good to make the instructions can still be used, it should not be a motherboard problem, please first check whether the battery level of the remote control is normal, whether the contact is good, whether the keys are sensitive, and it is best to clean the circuit board of the remote control. Then check the receiving circuit part, the antenna and the plug-in part.

If you know about the electronics, you may use an oscilloscope to test whether the receiver has received a signal, and if there is a signal, it may be that the remote control is wrong, find the original one.

Manual is easy to use, the remote control is not easy to use, that means it is not the problem of the electric door motherboard, it is the problem of the remote control, try to change the remote control again, if it is not good, check the receiving signal circuit.

1.find someone to fix it; 2.If you can't fix it, replace it. Find back the docking personnel you originally installed, if you can't find it for too long, go to the company that did these projects to find a master to repair or replace.

Power issues:

Check whether the wires are connected well, whether the power cord is loose, if not, it can be basically determined that the power supply is partially faulty. Check: whether the power cord and socket are electric, whether the motherboard power plug is connected, whether the UPS is powered normally, and then confirm whether the power supply is faulty, the simplest is the replacement method, but it is impossible for the general user to have spare parts such as power supply at home, at this time, you can try to use the following method (Note:

Be cautious): first connect the hard disk, CPU fan, or CDROM, and then connect the ATX motherboard power plug with a wire to connect the two pins (put one side of the plug protruding towards yourself, the upper pin from the left 4th and the lower pin from the right 3rd, the direction must be correct), and then turn on the ATX power switch, if the power supply fan rotates, the power supply is normal, otherwise the power supply is damaged. If the power supply is fine, simply short the jumper of the power switch on the motherboard, and if it is normal, the power switch on the chassis panel is damaged.

Motherboard issues:

Workaround:

1. Plug in the power cord tightly and check.

PWR is short for PowerSupply; BTN is short for Botton (Push Button Switch).

Together, it means "power switch button".

What circuit? Originally, the boot button was a very simple thing.,Could it be that you want to do an automatic boot or something?

Oh, yes, in fact, if it is a professional maintenance personnel, it will do relevant testing to determine that the power management module is repaired. In fact, for a maintenance person, if he knows that there is a problem and the original is repaired, he will not not repair it. The trouble is that he doesn't know that there is a problem, and there is no original replacement, and the ICs of many mobile phone motherboards are customized.

Or the specifications are not the same, and it is difficult to buy. And you don't necessarily know that it's the problem of the power management circuit, my *** is like this, it can't be charged, and people say that you can only change the motherboard. Because I guess he didn't know that there was something wrong with the original, and then he asked you to change the motherboard, so that you could make more money.

It is not difficult to repair How much money do you give after the key repair Ask you if you are willing to charge 500 It is better to change the motherboard Most of the current electronic products are integrated The level of profiteers does not dare to compliment you just to get a cheap source of goods for you.

It is not too difficult for people who are skilled in soldering, but there are risks, such as the motherboard will not light up due to the PCB plate.

Check your CPU and memory!

It's convenient to look at the memory first.,If you have two memory, try to pull one.,If you have one memory.,Try a different socket.。 If it's not memory, or take things off, try a good motherboard, if it works, then it's a motherboard problem, if it can't then it could be a CPU!

The most convenient thing is to buy a test card! Plug it in and see what the problem is! If it is a CPU, no numbers and letters will be displayed on it.

Take the motherboard out of the chassis, then plug in the power supply, see if it can be turned on, first the minimum system method, that is, only plug in the CPU, memory, graphics card, boot, see if it can detect the alarm. If you can, plug in the rest of the hardware at once and eliminate it step by step.

Motherboard problem,I have two computers are this problem,The first one is MSI's motherboard,The phenomenon is exactly the same as what you said,Later the computer was replaced,I bought an ASUS motherboard a year ago,The phenomenon is:If it cools down for more than ten minutes,You can turn on the computer for about five or six minutes,And then fix the screen (the display is not black,But keep the picture unchanged),Restart the light fan has a response,The others have no response,Later, it was sent to the ASUS chip-level testing center,There was no detection of any reason,I had to replace it。

Generally, this situation is caused by oxidation or poor contact of the gold finger in the memory. Encounter this situation:

1. Unplug the computer power cord first, and press the on/off button on the chassis 5-6 times. Releases the residual charge of the motherboard.

2. Then open the side panel of the chassis and plug and replace the slots of the memory.

3. Remove the CMOS battery from the motherboard and install it after 1 minute.

The computer has a discrete graphics card, so it's best to plug and unplug the graphics card. After the above operations are completed, the computer is powered back on.

The fault still needs to be booted using the minimum system method: (power supply + motherboard + CPU + memory + graphics card + monitor).

At this time, you should normally see the display content, pop up the hard disk can not be detected, keyboard and other prompts, you can enter the BIOS, and the buzzer has no abnormal sound. If it is abnormal, the monitor does not display (or the screen is blurred) or the buzzer has an abnormal sound.

1) Memory issues.

a.Problems per se. It doesn't work in any slot, and it doesn't work on other machines. Then the only way to do this is to change the memory. Buzzers generally have an unusual sound.

b.Compatibility issues. Other machines can be used, but this one can't; Or a single root can be used separately, but two roots cannot be used. Change memory.

2) Display graphics card issues.

a.Wiring issues. Check if there is any needle breakage or short circuit.

b.The graphics card itself is damaged.

c.The monitor is damaged (very unlikely).

b.Motherboard issues:The graphics card slot part, or the related control circuit is faulty. At this time, it can only be solved by changing the motherboard.

It seems that the motherboard of your computer may be burned, and there will be no problem if you change the motherboard, if you really don't understand, you add the QQ of the 425775050

Is there no alarm sound? If you can enter the system normally once, it is recommended to reinstall the system or fix the C disk under DOS. It seems to be a problem with the hard drive.

You take the memory down and wipe it. If it doesn't work, try a different slot.

It refers to interface circuits, BIOS and CMOS circuits, power supply circuits, clock circuits, reset circuits, and boot circuits.

I do not know.

Excuse me and I'm sorry.