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Volt Charge FLT

This article guides you step-by-step on how to determine the cause of a Volt Charge Fault

Step 1: Remove the side covers and turn the system ON Write down if the “OK” light
is Green or Red in the Cap Charger


Step 2: Check if the fan from the Cap Charger is working. If not, change the Cap
Charger


Step 3: Turn OFF the machine. Remove from the Cap Charger the Coax cable with
the BNC connector. Turn ON the machine again and check if the error is still there.
If not, change the Cap Charger

Image 1-2

Step 4: Locate the Control Board seen below

Image 2-1

Step 5: • Set the voltmeter to 200V DC. Set the parameters on the display to 200 volts,
1ms, 0Hz, 0.2mm


Step 6: Locate the following on the control card (TP1, R21, and R24)

Image 3-1

Step 7: Place the Black probe of the voltmeter onto “TP1” Place the Red probe of
the volt meter to the left side of “R21”. Use the following formula to validate if the
voltage is correct:

Divide the voltage across R21 by 10
Multiply the previous result by 400
The final value must match the voltage Setup on the display (Step 3) +/- 3V

Step 8: Place the Black probe of the voltmeter onto “TP1” Place the Red probe of
the voltmeter to the left side of “R24”. Use the following formula to validate if the
voltage is correct:

Divide the voltage across R24 by 10
Multiply the previous result by 400
The final value must match the voltaje Setup on the display (Step 3) +/- 3V

Step 9: Place the Black probe of the voltmeter onto “TP1” Place the Red probe of
the voltmeter to the right pin of “J16” (Voltage Should be 12V)


Step 10: Place the Black probe of the voltmeter onto “TP1” Place the Red probe of
the voltmeter to the right pin of “J17” (Voltage Should be 15V)


Step 11: Place the Black probe of the voltmeter onto “TP1” Place the Red probe of
the voltmeter to the left side of “TP2” (Voltage Should be 5V)

NOTE: This test is not 100% accurate. Therefore, for a more accurate diagnosis, we suggest sending the control board and the capacitor charger to LaserStar for further evaluation in our laboratories.

 

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