How to replace red dot pointer and cables
Replace red dot pointer
（Unplug the old red dot pointer, reconnect the new one according to the original position.）
1. The red dot pointer is installed on the beam combiner, please loosen the screw fixing the red dot pointer, and then pull out the red dot pointer.
2. The other end is connected to the red dot cables inside the machine below the first mirror, please unplug the red dot indicator.
3. Finally, please replace the new one and reconnect it.
Replace the cables of red dot pointer
（Note: It is only for the case where the cable needs to be changed after being judged by Thunderlaser, for reference only）
1. unplug the red dot interface on TL-Timer, then please pull the red dot cables in the direction of the slot indicated by the red arrow and wrap it to the slot at the rear of the machine.
2. Then pull out the cables from the hole on the right side of the inside of the machine.
3. Finally connect the red dot pointer with the red dot cables.
End