Mahjong machine shows four maintenance tutorials.

Mahjong machine monitor 4 maintenance tutorial is as follows:

1. The main reason for this failure is that the indicator light of the motherboard power supply does not light up after power on. The main reason is that the motherboard power supply is damaged or the motherboard power cord is not connected to the 220V power supply. In this case, you first use a multimeter to adjust the AC voltage to 750 V, and measure whether the power input has a voltage of about 220V V V. If so, the motherboard power supply is damaged; If not, check the power input terminal and connecting wire.

2. After connecting the power supply, the "indicator light" of the motherboard power supply is normal, but the program cannot work. The main reason for this failure is that the motherboard program is not burned well, or it is not positioned, or the motherboard is broken, or there is something wrong with the panel switch.

First deal with the panel switch failure, unplug the panel switch, use the remote control to the left position, and press the "A/B" key to color. If it is normal, it proves that the panel switch is damaged and replaced.

3. The main reasons for this kind of failure are that the motherboard is broken, the bracket is broken, the bracket line is broken or the connection is not good. The maintenance method is to let the mahjong pass through the bracket and observe the indicator light of the motherboard.

Found that an indicator light is not on, touch the bracket plug of the motherboard with your hand, and the indicator light of the motherboard has a luminous indication, which proves that the motherboard is good. Replace a good bracket, and the indicator light still doesn't light up, or replace the bracket wire.

Working principle:

Mahjong machine's working principle is that the cards with the back facing upwards are attracted by the magnetic ring on the shuffling barrel, sent to the conveying trough along with the rotation of the magnetic ring, pushed into the pier by the card folding motor of the head, and pushed away by the chain rod, while the cards with the non-magnetic front face continue to rotate on the tray (single-mouth machine principle), which has been upgraded to a four-mouth machine.

Mahjong machine is divided into single-port machine, four-port machine, eight-port machine and ultra-thin machine.