How to adjust the 48V 30W RF Tube Power Supply Voltage for a Thunder Laser Bolt
Preface: This article covers how to adjust the 48V power supply voltage for the Thunder Bolt DC 30W RF tube. Power must be on the machine and the Laser must complete the startup sequence.
This procedure requires work to be done near live voltage. Take proper precautions.
Quickstart Video:
Complete Guide:
Tools you will need:
Multimeter
P1 Phillips Head Screw Driver
Doorlatch Key
Procedure:
1. Locate the Power SupplyYou will need to access the back of the Thunder Bolt Laser where the LPSU and Tube are. Unlock and unlatch the two latches that keep the tube door closed
Unlock and Unlatch the Rear Door
2. Observe the Power Supply
The power supply is on the left side of the back of the machine. It should have a green Light on it to indicate the it is On and Outputting. Take note of the terminals and devices pointed out below
3. Measure the Output and Adjust
Use the multimeter to measure the DC output on the V+ and V- terminals. Use the screwdriver on the Trim Pot to adjust the voltage. Small turns clockwise to increase, Small Turns counter=clockwise to decrease.
Adjust the voltage until it is between 47 and 49 VDC. Try to get closer to 48V if possible.
Reference Articles:
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