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iPhone X has no sound repair
Machine model: iPhone X
Malfunction: The phone has no sound or vibration, and the recorder stops recording for 1 second.
Maintenance process: after replacing coder ic, the fault is repaired, and it takes one day to repair. The fault remains the same, and VCC is normal. Measure diode value of each point one by one.
The idea is that both coder and AUDIO CODEC IC don’t work, so there should be something wrong with their bus. Measurement shows that the signal Short circuit in the figure is directly connected to the loudspeaker power amplifier chip, and the fault is repaired after replacement.
iPhone X has no sound repair Figure 1.
iPhone X has no sound repair Figure 2.
