Introduction to functions of DC regulated power supply panel
1. Power outlet
It is employed to switch the DC regulated power supply on and off. Since there is no switch on the output end, you should turn on the power and adjust the voltage value before receiving a mobile phone for repair. You should also be aware of the voltage range of the battery used in this mobile phone.
2. The Voltmeter
utilized to view the output voltage reading. It is important to check the output voltage value with a multimeter before usage to see the indication error of the voltmeter, as the accuracy of the regulated power supply voltmeter is not high and it will show inaccurately after being used for an extended period of time. How much. If not, incorrect instructions may have caused the output voltage to be either too high or too low.
3. Amplifier
When fixing cell phones, it is utilized to check the value that is currently there. Experts frequently use the ammeter pointer's swing to discover problems.
4. A knob for adjusting voltage
used to modify the voltage of the output signal.
5. Port for voltage output
After plugging in the power cord and flipping on the power switch, the mobile phone's operating voltage is output via the voltage output port.
6. Fine tuning at zero points
Adjust the pointer to the zero-point position by fine-tuning the zero-point fine-tuning knob while the power is off.
7. F guidance
It is employed to test the transmitting circuit for mobile phones. The signal strength will be shown on the F indication when the mobile phone is in close proximity to the regulated power supply and calls "112". It is employed to determine if the circuit that transmits mobile phone signals is operational.
8. Switch for function selection
used to choose between the functionalities of the measured voltage display and the output voltage display. DC controlled power source
