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no booting deep sea machine maintenance ghost
After the machine was disassembled, the BIOS was immediately flashed, which was useless. It was found that the EC also had BIOS, and the failure was still the same. Check the en of U1 to open VCC.When measuring 3.3V to ground, the resistance is zero. It is 3.3V Short circuit Current protection.
Machine model: mechanical revolution deep sea ghost Z2 air notebook
Fault phenomenon: notebook no booting
Maintenance process:
Laptop no booting, standby 0.018, press Switch key 0.020 flash, basically equivalent to no response.For such cases, according to experience, the first thing to think about is BIOS.After the machine was disassembled, the BIOS was immediately brushed, which was useless. It was found that the EC also had BIOS, and then the failure was still the same.It seems that this is not the reason. It’s better to follow the maintenance steps.
Check 5V normal, check 3.3V, not found.Open the Xinzhizao Soft software and check the drawing. The 3.3V Inductor is L13, and the measurement VCC is zero.Check the en of U1 to open VCC.When measuring 3.3V to ground, the resistance is zero. It is 3.3V Short circuit Current protection.3.3V VCC is distributed in dozens of points on the motherboard, only Current heating test.Good luck,Capacitor c601 intense hot, remove auto power off capacity c601.
Mechanical revolution deep sea ghost Z2 air notebook no booting maintenance Figure 1
Mechanical revolution deep sea ghost Z2 air notebook no booting maintenance Figure 2
Power on test,Normally booting up!Test function is normal, troubleshooting, maintenance is over.
Mechanical revolution deep sea ghost Z2 air notebook no booting maintenance Figure 3
