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Dell G7 does not boot.
When measuring the main board inductance with single board, it is found that the bridge’s resistance of 1.05V is 0, which indicates that there may be something wrong with the bridge. Other inductance resistances are normal when measured. If the bridge is burnt with 1V, the bridge will be locked for short circuit damage. The specific maintenance process is as follows:
“Machine model” Dell G7
[Fault phenomenon] No boot.
[Maintenance process] The board number is LA-E994P, which is a single board sent by a colleague for maintenance. The model is Dell G7, and the fault is that it won’t start.
Dell G7 does not boot Figure 1
When measuring the main board inductance with single board, it is found that the bridge’s resistance of 1.05V is 0, which indicates that there may be something wrong with the bridge. Other inductance resistances are normal when measured. If the bridge is burnt with 1V, the bridge will be locked for short circuit damage.
Dell G7 does not boot Figure 2
[Maintenance result] Since the customer only sent a single board, we only guarantee that it can be turned on.
