1. Check to see if anything has fallen in, causing it to get stuck and unable to board the plane. You can tear off the tape and open the panel. If something gets stuck, take it off.

2. If it is not due to physical reasons (jamming, jamming of pushing parts, deformation, etc.). ), maybe the motherboard is broken. Press and hold four color keys at the same time. When the color flashes after hearing the buzzer, release the power, turn it on and off again to see if it can work normally.

If none of the above methods work, there are many reasons why you can't get permission. It is recommended to find a local after-sales teacher to solve the problem.

First of all, when the power switch is turned on, the switch indicator does not light up and the machine does not respond:

1, AC 220V power supply has no power supply.

2. The power plug can't be plugged in and the power socket is loose.

3. The power cord or connecting wire of the power supply part is disconnected.

4. The power fuse is disconnected or has poor contact.

5. The power switch is damaged.

Second, the indicator light of the operation panel is on. If the up/down key is pressed, the operation panel will not move or rise:

1. The plug on the operation panel is loose, the plug wire is broken or the contact is poor.

2. Check whether the operation panel and the main control panel are normal.

3. Check the motor and HL switch of the lifting assembly.

Three, when the machine is working, press the lifting button, the operation panel does not move, no lifting action:

When the machine is working, the indicator light on the operation panel goes out. At this time, if you want to raise the operation panel, you must press both lifting buttons at the same time.

Four, in the process of machine work, at the same time, press the two lifting buttons to reset the board, and the big board still rotates:

When the machine is in the normal state of card replacement: press two lifting buttons at the same time, and the lifting parts, coil parts, conveying parts and electromechanical parts should stop working. After the card replacement is completed, just press a lifting button, the lifting assembly will descend, and the coil assembly, conveying assembly and electromechanical assembly will start working again. When there is a license plate, the magnetic ring assembly, conveying assembly and electromechanical assembly are on, indicating that the main core plate is damaged. Ask a professional to check and replace it.

Five, the operation panel is not stable:

1, the mechanical part of the lifting assembly has friction.

2. The lifting key of the operation panel is not good.

3.HL installation is not in place or loose, and the quality is poor.

4. Check the executive part of lifting parts, such as silicon controlled rectifier (note: it should be checked by electrical professionals).

Six, mechanical and electrical components have no promoting effect:

1. The photoelectric sensor S 1 on the electromechanical element pushing mechanism is defective or the signal is blocked by foreign objects.

2. Determine the potentiometer value of S 1 working state.

3. If the sensitivity of S 1 is too low, adjust the potentiometer of S 1 to meet the requirements.

4. The card is too dirty, which shortens the action distance of S 1.

5, mechanical and electrical components motor plug loose or disconnected.

6. The phase-shifting capacitor of the motor or electromechanical component is damaged or changed.

Extended data:

Machine inspection:

First, press two lifting keys at the same time, then turn on the power switch, release the keys, and the Lao Zhuang indicator light will light up, indicating that the test begins. Press any dice key to change the test number (the test number consists of four green lights, from left to right, on-1 and off -0). For example, the four green lights from left to right are "Off and On", indicating the test number 011,which is used to test the blocking sensor signal).

After selecting the test number, press any lifting key to confirm. At this point, the reset indicator will light up for testing. Press any lifting key to exit the test and enter the next test. After the test, power on again to enter the running state.

Common faults:

1, the machine speed is slower than 80 seconds. The fault causes are that the magnetic ring position is not in place, the rubber strip of the turntable falls off, the distance of the triangle block is adjusted, the card feeder is adjusted, the turnover lever is adjusted, the height of the magnetic isolation plate and the turntable is adjusted, the head speed is abnormal, there are sundries in the conveying groove, the shuffling spring is not easy to use, and the turntable speed is ahead of the magnetic ring.

2. Reasons for pushing the chain behind the splint: whether the front and rear clamping rods are flexible, whether the rubber strip on the splint falls off, whether the spring falls off or is damaged, and whether the microswitch is flexible.

3. The reasons for jamming are: adjustment of the stroke position between the head and the conveying groove (the distance between the head plate and the conveying groove is generally 1mm), poor optical coupling performance of the groove, long sensitive distance of K 1 head sensor (4 distance from the optical sensor × 10mm), damaged motor gear, and uneven head stacker and road sign.

Adjust the position of the head guard and the push plate. The first gear slider is not flexible, and the stainless steel plate is too low.

Baidu Encyclopedia-mahjong machine