Cell Phone Repair Burner Magic Tool Anti-Burning Motherboard Repair Computer Motherboard Short Circuit Adjustable DC Voltage Regulator Ammeter
Product Features:
Support output voltage 0-5.5V, current 0-20A/30A
This instrument can detect various short circuits on the circuit
This instrument can detect the short circuit and repair it within seconds.
This instrument can be used to detect short circuits on cell phones and laptops
Product Advantages:
Short circuit recovery/overheating protection/overcurrent protection/overvoltage protection/sound alert/automatic recovery/safety and efficiency/positive and negative polarity identification
Caution:
TS-20A Current cannot exceed 20A
TS-30A The current cannot exceed 30A.
The probe of the meter pen is very sharp, please pay attention to safety, this meter pen can also be used on the multimeter.
The instrument has a high voltage, non-professionals, please do not open without authorization, the instrument has a high current output, is strictly prohibited for a long time short circuit test.
Instructions for the use of the device:
After receiving a cell phone first observe the current, this instrument can handle the following situations
1: power short circuit (with a regulated power supply to the phone power supply (set the standard voltage connected to the positive and negative poles), the power to hit the table at the same time issued an alarm);
2: press the on button high current over 500 mA;
3: Small current fast shaking;
4: be able to clearly know that a short circuit occurs somewhere in the circuit, and can not find the real short-circuit device.
5: other use of the secret to find out for yourself.
Using a multimeter to measure the main board of the cell phone if the battery contacts directly short-circuited, (multimeter buzzer gear will ring must look at the actual resistance is not 0) can set the voltage 1V, according to the battery labeling connected to the right negative fire directly clamped on the shield, and then use the instrument positive point to live on the main board of the battery positive pins or contacts. When the goddess is ringing that in the electric shock, if the continuous ringing 5 sound should be disconnected after the goddess, and again measure the battery contact resistance. If the resistance becomes larger, try increasing the voltage.
If no direct short-circuit occurs when the battery contacts are measured with a multimeter, you should measure around the power supply IC to find the short-circuited components (just a few big capacitors, you can find them in a few seconds), and then in the electric shock, the same method as above.
If you can not clearly determine the polarity of the two ends of the capacitor can take the following method: first the god clip clamp the motherboard shield, and then use 1V voltage positive to click on the capacitor ends, when the buzzer rings remember the voltage value, respectively, write down the voltage value of the two ends of the comparison, the voltage is high at the end of the positive end of the capacitor.
Generally 5 times can not burn the phone should be observed whether there are man-made circumstances caused by a short circuit, such as shielding depression, man-made settings short circuit, the edge of the motherboard trauma and so on.
If many times can not burn open the phone can use rosin smoke hair to assist in carrying out. Find the heating element to remove and then test the short-circuit situation.
Product Features:
Support output voltage 0-5.5V, current 0-20A/30A
This instrument can detect various short circuits on the circuit
This instrument can detect the short circuit and repair it within seconds.
This instrument can be used to detect short circuits on cell phones and laptops
Product Advantages:
Short circuit recovery/overheating protection/overcurrent protection/overvoltage protection/sound alert/automatic recovery/safety and efficiency/positive and negative polarity identification
Caution:
TS-20A Current cannot exceed 20A
TS-30A The current cannot exceed 30A.
The probe of the meter pen is very sharp, please pay attention to safety, this meter pen can also be used on the multimeter.
The instrument has a high voltage, non-professionals, please do not open without authorization, the instrument has a high current output, is strictly prohibited for a long time short circuit test.
Instructions for the use of the device:
After receiving a cell phone first observe the current, this instrument can handle the following situations
1: power short circuit (with a regulated power supply to the phone power supply (set the standard voltage connected to the positive and negative poles), the power to hit the table at the same time issued an alarm);
2: press the on button high current over 500 mA;
3: Small current fast shaking;
4: be able to clearly know that a short circuit occurs somewhere in the circuit, and can not find the real short-circuit device.
5: other use of the secret to find out for yourself.
Using a multimeter to measure the main board of the cell phone if the battery contacts directly short-circuited, (multimeter buzzer gear will ring must look at the actual resistance is not 0) can set the voltage 1V, according to the battery labeling connected to the right negative fire directly clamped on the shield, and then use the instrument positive point to live on the main board of the battery positive pins or contacts. When the goddess is ringing that in the electric shock, if the continuous ringing 5 sound should be disconnected after the goddess, and again measure the battery contact resistance. If the resistance becomes larger, try increasing the voltage.
If no direct short-circuit occurs when the battery contacts are measured with a multimeter, you should measure around the power supply IC to find the short-circuited components (just a few big capacitors, you can find them in a few seconds), and then in the electric shock, the same method as above.
If you can not clearly determine the polarity of the two ends of the capacitor can take the following method: first the god clip clamp the motherboard shield, and then use 1V voltage positive to click on the capacitor ends, when the buzzer rings remember the voltage value, respectively, write down the voltage value of the two ends of the comparison, the voltage is high at the end of the positive end of the capacitor.
Generally 5 times can not burn the phone should be observed whether there are man-made circumstances caused by a short circuit, such as shielding depression, man-made settings short circuit, the edge of the motherboard trauma and so on.
If many times can not burn open the phone can use rosin smoke hair to assist in carrying out. Find the heating element to remove and then test the short-circuit situation.