Good Day Classmates and to you Teacher ChedRick Jumawan Ortiz
Another iPhone7plus Trouble Shooting Success
Problem: No Power
Causes : Water Damage
History : Already Repair on other Shop but sad to say Not Done.
Action Taken:
1. Check The Phone and i Found #PP_VDD_MAIN fully shorted Capacitor #C7610_RF
2. Remove #C7610_RF
After remove tatagalogin ko nalang
Nawala na ang Short at may Power na ang Phone, pero ayaw mag Charge.
3. Open Easy Draw and find #PP5V0_USB and Check Voltage if Present or Absent buti nalang Present may Voltage 4.8 ayun kay Fluke101
4. Trace the Line of #PP5V0_USB and Check the Resistance of every Capacitor,FL & Resistors if Good or Bad
5. While Checking the Line of #PP5V0_USB i found #Q4001 & #FL4107 is Missing and the #Q4001 pin 1 is Lifted The function of This line is a (TRISTAR_REVERS_GATE) ibig sabihin si #Q4001 Pin1 ay isa ring Protection if any Overloaded Cases na matamo ni TRISTAR or ni #U2ic kaya Masira ang Switching Mechanism ni #Q4001 Hindi na gagana
6. Make Jumper #Q4001Pin2PP5V0_USB to #Q4001Pin3 the #2403PP5V0_USB sila lang po ang i Dugtong Huwag na isali si pin1
7. Connect the two point Line #FL4107 (pin#2PP3V0_TRISTAR_ANT_PROX & pin#1PP3V0_LAT1_CONN452)
And Trouble Shooting Successfully Done
Another iPhone7plus Trouble Shooting Success
Problem: No Power
Causes : Water Damage
History : Already Repair on other Shop but sad to say Not Done.
Action Taken:
1. Check The Phone and i Found #PP_VDD_MAIN fully shorted Capacitor #C7610_RF
2. Remove #C7610_RF
After remove tatagalogin ko nalang
Nawala na ang Short at may Power na ang Phone, pero ayaw mag Charge.
3. Open Easy Draw and find #PP5V0_USB and Check Voltage if Present or Absent buti nalang Present may Voltage 4.8 ayun kay Fluke101
4. Trace the Line of #PP5V0_USB and Check the Resistance of every Capacitor,FL & Resistors if Good or Bad
5. While Checking the Line of #PP5V0_USB i found #Q4001 & #FL4107 is Missing and the #Q4001 pin 1 is Lifted The function of This line is a (TRISTAR_REVERS_GATE) ibig sabihin si #Q4001 Pin1 ay isa ring Protection if any Overloaded Cases na matamo ni TRISTAR or ni #U2ic kaya Masira ang Switching Mechanism ni #Q4001 Hindi na gagana
6. Make Jumper #Q4001Pin2PP5V0_USB to #Q4001Pin3 the #2403PP5V0_USB sila lang po ang i Dugtong Huwag na isali si pin1
7. Connect the two point Line #FL4107 (pin#2PP3V0_TRISTAR_ANT_PROX & pin#1PP3V0_LAT1_CONN452)
And Trouble Shooting Successfully Done