SM A15 5G Display & Light Schematics with Diode Value

Описание: 📱 Samsung Galaxy A15 5G Display & Light Section Repair Guide
In this video, we dive deep into the Samsung Galaxy A15 5G (SM-A156) motherboard to explain the Display and Backlight section schematics. If you are facing a "Black Screen," "No Graphics," or "No Light" issue, this step-by-step hardware tracing guide is for you!

🔍 What’s Covered in This Video:
Display Connector (LMX) Pinouts: Detailed explanation of the FPC connector pins.

Backlight Circuit Tracing: Understanding the LED+, LED-1, and LED-2 lines.

Diode Value (Reading) Chart: Exact multimeter diode readings for all essential display pins to help you find shorts or open lines.

Voltage Requirements: Checking for V
reg
​
and V
boost
​
voltages (e.g., 1.8V, 5V, or higher for the backlight).

Component Identification: Locating the Light IC, Coils, and Diodes on the PCB.

📉 Diode Value Reference (Brief Summary):
Note: Always measure in Diode Mode with the Red probe on Ground (GND).

MIPI Data Lines: Should show consistent readings (approx. 300-400 range).

LCD_VCC / VSP / VSN: Essential for graphics.

Backlight Anode (LED+): High impedance/specific value depending on the IC.

🛠 Tools Used:
Digital Multimeter (Sunshine/Fluke)

Pragmafix Schematics

Microscope for PCB Tracing

Found this helpful? Don't forget to Like, Subscribe, and hit the Bell Icon for more mobile repairing tutorials!

#SamsungA155G #DisplayRepair #MobileRepairing #SchematicDiagram #BacklightSolution #SmartphoneRepair #A156B

Suggested Next Step:
Would you like me to create a Diode Value Table specifically for the A15 5G display connector pins so you can show it on screen during your video?