Poco X3 Schematic Diagram Download ^new^ -

I understand you're looking for a schematic diagram for the Poco X3 (likely the Poco X3 NFC or Poco X3 Pro). This is a detailed technical request, so let me break down exactly what you need, where to find it, and what to expect.

Navigating the Poco X3 Motherboard (PCB Layout)

Before you download the schematic, you must understand the hardware revision. The Poco X3 comes in two main variants: poco x3 schematic diagram download

| Variant | Codename | Key Difference | | :--- | :--- | :--- | | Poco X3 NFC | surya | Supports NFC (Near Field Communication) via an extra chip. | | Poco X3 (India) | karna | No NFC; different RF shielding. | I understand you're looking for a schematic diagram

Ensure your Poco X3 schematic diagram download matches your model. Using a surya schematic on a karna board will lead to confusion because the component locations (Uxxxx numbers) will differ. No Power: Trace VPH_PWR from battery connector to PM6150L

Common Repairs Using the Poco X3 Schematic

• No Power: Trace VPH_PWR from battery connector to PM6150L.
• No Display: Check LCD_VDD (2.8V) and LED_ANODE for backlight.
• Headphone Jack Not Working: Verify HPH_L and HPH_R lines from WCD9375.
• Overheating: Look for shorted capacitors on VREG_L9C_1P8 or VREG_S5C_0P9.

Repair #1: Dead Phone (No Power, No Charging)

1. Open the Power Distribution page. Locate the main battery connector (J1800).
2. Check VBAT_SYS. Follow the line. The schematic will show a test point (TP) labeled "VBAT_SYS."
3. Probe with a multimeter (Measure DC voltage). If 0V, the battery is dead or the connector is broken.
4. Trace the charging path. Find the BQ25601 IC. The schematic shows "VBUS" coming from the USB port to pin 1 of the charger IC. If you have 5V on VBUS but no output, the charger IC is likely bad.

I understand you're looking for a schematic diagram for the Poco X3 (likely the Poco X3 NFC or Poco X3 Pro). This is a detailed technical request, so let me break down exactly what you need, where to find it, and what to expect.

Navigating the Poco X3 Motherboard (PCB Layout)

Before you download the schematic, you must understand the hardware revision. The Poco X3 comes in two main variants:

| Variant | Codename | Key Difference | | :--- | :--- | :--- | | Poco X3 NFC | surya | Supports NFC (Near Field Communication) via an extra chip. | | Poco X3 (India) | karna | No NFC; different RF shielding. |

Ensure your Poco X3 schematic diagram download matches your model. Using a surya schematic on a karna board will lead to confusion because the component locations (Uxxxx numbers) will differ.

Common Repairs Using the Poco X3 Schematic

• No Power: Trace VPH_PWR from battery connector to PM6150L.
• No Display: Check LCD_VDD (2.8V) and LED_ANODE for backlight.
• Headphone Jack Not Working: Verify HPH_L and HPH_R lines from WCD9375.
• Overheating: Look for shorted capacitors on VREG_L9C_1P8 or VREG_S5C_0P9.

Repair #1: Dead Phone (No Power, No Charging)

1. Open the Power Distribution page. Locate the main battery connector (J1800).
2. Check VBAT_SYS. Follow the line. The schematic will show a test point (TP) labeled "VBAT_SYS."
3. Probe with a multimeter (Measure DC voltage). If 0V, the battery is dead or the connector is broken.
4. Trace the charging path. Find the BQ25601 IC. The schematic shows "VBUS" coming from the USB port to pin 1 of the charger IC. If you have 5V on VBUS but no output, the charger IC is likely bad.