A coin not scoring:

The 1 switch ( normally open, normally closed ) shifting gears is correct.

2 coin of the signal line is connected, the wiring method is correct.

The 3 Coin if the power socket contact.

The 4 Coin COIN signal to an open collector output, which is connected with the target board is connected with a pull-up resistor.

5 the coin had coins is smooth.

B coin have coin phenomenon:

1 adjust the COIN signal speed switch.

The 2 coin coin passage is caused by foreign body, walk not smooth and eat coins coins.

3 the coin had coins is smooth.

C coin is not smooth:

1: VR adjustment knob counterclockwise locking, a clockwise direction regulating pine.

The 2 adjustment precision switch : precision gear: a coin selecting accurate but more severe, tokens used normal file.

3 sample is clamped, a coin.

4 the coin had coins is smooth.

The D. But coins:

The 1 coin outlet is connected, whether bad contact.

The 2 coin is whether the wiring is correct.

The 3 coin coin passages is a foreign body.

4" if clips.

The 5 door is stuck and the electromagnet electromagnet suction does not move.

6 the coin had coins is smooth.

E over counterfeit money:

1: VR adjustment knob counterclockwise locking, a clockwise direction regulating pine.

2 will adjust the precision switch to precision gear.

3" if clips.

4 electromagnet death card.

F. No sound:

The 1 coin if the power socket is not connected, whether bad contact.

The 2 wiring is correct.

G. Sound much sound:

The 1 coin coin passages is a foreign body.

The 2 coin if the power socket contact.