Vibrator Circuit - Huawei G510 Maintenance Manual

Signal Symbol
MDP_VSYNC_P
LCD_ID0
LCD_ID1
MIPI_DSI_CLK_P
MIPI_DSI_CLK_N

9.4.2 Vibrator Circuit

Circuit Diagram
Figure 9-26 shows the vibrator circuit diagram.
Figure 9-26 Vibrator circuit diagram
Analysis
The PM8029's VIB_DRV_N pin serves as the drive pin of the vibrator and is located on the
main PCB. When the vibrator is not vibrating, the level VPH_PWR and VIB_DRV_N is high.
Troubleshooting
Fault symptom: The vibrator does not vibrate.
Handling: Troubleshoot the fault according to the process shown in Figure 9-27.
2013-01-28
G510 Maintenance Manual V1.0
Description
Vertical frame synchronization
signal
Vendors' ID information
Vendors' ID information
Clock differential signal (+)
Clock differential signal (–)
Huawei Confidential
INTERNAL
Reference Measurement or
Waveform
1.8 V
1.8 V
1.8 V
1.8 V
1.8 V
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