andriod 3726 light IC BACK LIGHT DISPLAY LIGHT AND COIL IC

PKR 200.00

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Overview of Components in Xiaomi Redmi 2A Backlight Circuit

The 3726 light control IC used in the Xiaomi Redmi 2A is responsible for managing the display's backlight, ensuring that the screen brightness adjusts according to ambient lighting conditions. In addition to the light control IC, components like coils, diodes, and inductors play crucial roles in the functioning of the backlight circuit.

3726 Light Control IC

• Function: The 3726 IC regulates the backlight by controlling the power supplied to the LEDs based on ambient light data. This helps in automatic brightness adjustment, optimizing user experience and conserving battery life.

Coil (Inductor)

• Function: The inductor in the backlight circuit is used to store energy and smooth out the current supplied to the LEDs. It plays a critical role in maintaining a stable voltage and preventing fluctuations that could damage the LEDs or affect display brightness.
• Inductance Value: The specific inductance value of the coil is crucial for proper circuit operation. It is selected based on the required current and voltage for the backlight.

Diode

• Function: The diode in the backlight circuit typically acts as a rectifier or protection component. It ensures that current flows in the correct direction, preventing reverse current that could damage the circuit or the light control IC.
• Protection: Diodes can also protect the circuit from voltage spikes, which could otherwise harm the IC or the LEDs.

Applications:

• Smartphones: The 3726 IC is commonly used in smartphones like  Xiaomi Redmi 2A , Techno and Infinex to manage the automatic brightness feature.
• Tablets and Portable Devices: It is also used in tablets and other portable devices that require efficient backlighting for displays.

Common Issues and Diagnostics

• Backlight Failure: If the 3726 IC, coil, or diode fails, the display backlight may stop functioning, leading to a dark screen even if the phone is on.
• Inconsistent Brightness: A malfunctioning inductor can cause unstable voltage, leading to flickering or inconsistent brightness levels.
• No Automatic Brightness: If the light control IC fails, the device may lose its ability to adjust brightness automatically, requiring manual adjustment by the user.

Replacement and Repair

• Diagnosis: Technicians can diagnose issues by testing the voltage at different points in the backlight circuit, using tools like multimeters to check the functionality of the IC, coil, and diode.
• Replacement: Replacing these components requires precise soldering skills and proper tools. It’s often recommended to have a professional technician perform the replacement to avoid further damage to the device.
• Parts Availability: The 3726 IC, as well as the associated coil and diode, can be sourced from specialized electronics component suppliers. It’s important to purchase from reputable sources to ensure quality and compatibility.

where to buy 3726 Samsung Light IC

·         Online Electronics Suppliers: Platforms like @ BilalGsm,, or specialized electronics parts suppliers offer this IC.

·         Mobile Repair Parts Stores: Physical or online stores that specialize in smartphone components.

·         Ensure Authenticity: Buy from @ BilalGsm, reputable sellers to avoid counterfeit or substandard components.

FAQs About the 3726 Light IC

1. What is the 3726 Light IC?

2. How does the 3726 Light IC work?

3. Which devices use the 3726 Light IC?

4. What are the common issues with the 3726 Light IC?

5. How can I diagnose a faulty 3726 Light IC?

6. Can I replace the 3726 Light IC myself?

7. Where can I purchase a 3726 Light IC?

8. What tools are needed to replace the 3726 Light IC?

9. What should I do if the backlight still doesn’t work after replacing the 3726 Light IC?

10. Can a software update affect the performance of the 3726 Light IC?

In some cases, software updates can impact the performance of hardware components, including the 3726 IC. If you experience issues after an update, try resetting your device or rolling back the update if possible.

This FAQ section covers common questions and concerns related to the 3726 Light IC, helping users understand its functionality, diagnose issues, and consider repair options.