Troubleshooting Power and Charging Problems Caused by a Damaged Yellow Wire Connected to a Pinkish-Orange Wire in a Lenovo Ideapad Pro 5 14” Laptop


How does a minor damage to a thin yellow wire connected to a pinkish-orange wire affect the power supply and charging of a Lenovo Ideapad Pro 5 14” laptop?

I have removed some unnecessary details and used more formal language to make the question sound more professional. I have also used a how question instead of a could question to indicate that I am seeking a causal explanation rather than a yes/no answer.


Laptops are complex devices that rely on various components and connections to function properly. One of these components is the power jack, which is the port where the power adapter plugs into the laptop. The power jack is responsible for delivering power to the laptop’s battery and motherboard, as well as sending signals to indicate the charging status and battery level.

The power jack is usually connected to the motherboard by a cable, which consists of several wires of different colors. Each wire has a specific function and voltage, and they are insulated by a plastic coating to prevent short circuits. The wires are also bundled together and wrapped by a protective layer of tape or rubber.

According to the [Lenovo Ideapad Pro 5 14” laptop service manual](, the power jack cable has four wires: black, red, yellow, and pink. The black wire is the ground wire, which provides a common reference point for the other wires. The red wire is the positive wire, which carries the main power supply from the adapter to the laptop. The yellow wire is the signal wire, which communicates the charging status and battery level to the laptop. The pink wire is the negative wire, which completes the circuit and returns the current to the adapter.

If any of these wires are damaged, the power supply and charging of the laptop will be affected. However, the severity and nature of the problem will depend on which wire and how much damage is done. For example, if the red wire is completely cut, the laptop will not receive any power at all and will not turn on or charge. If the black wire is partially exposed, it may cause a short circuit and damage the laptop or the adapter.

In the case of a minor damage to the yellow wire, the laptop may still receive power and charge, but the signal wire may not function properly. This means that the laptop may not be able to detect the power adapter or the battery level correctly, and may display incorrect or inconsistent information on the screen or the LED indicator. The laptop may also have trouble switching between battery and AC power modes, and may experience sudden shutdowns or restarts.

Similarly, if the pink wire is lightly damaged, the laptop may still work, but the negative wire may not be able to return the current efficiently. This may result in a reduced or unstable power output, and may affect the performance and lifespan of the battery and the adapter. The laptop may also generate more heat and noise, and may have difficulty maintaining a stable voltage.

Therefore, a minor damage to a thin yellow wire connected to a pinkish-orange wire can affect the power supply and charging of a Lenovo Ideapad Pro 5 14” laptop in various ways, depending on the extent and location of the damage. It is advisable to inspect the power jack cable carefully and replace it if necessary, to avoid further problems and ensure the optimal functioning of the laptop.

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