The Nintendo Switch OLED board (HEG-CPU-10) is significantly different from the HAC-CPU-20/30 (V2). The board is darker, tighter, and reconfigured to optimize space.
+------------------+ +-------------------+ +-------------------+ | Headphone Jack | <--- | Realtek RT5682 | <--- | Tegra X1+ SoC | | (Analog Signal) | | (Audio Codec) | | (Digital Audio) | +------------------+ +-------------------+ +-------------------+ Audio Routing
A high-efficiency, multi-phase buck regulator responsible specifically for delivering high-current, low-voltage power to the Tegra CPU and GPU cores ( V_CPU and V_GPU , typically hovering around 0.8V to 1.1V under load). Battery Charging and USB-PD Control
Provides excellent, high-resolution visuals of the internal layout.
For micro-soldering technicians, the Switch OLED schematic highlights several critical lines prone to failure. The No-Power / No-Charge Fault
The Tegra SoC does not natively output native HDMI signals; it outputs DisplayPort (DP) over USB-C alternate mode. The console motherboard houses a converter chip—historically a Pericom IC, but updated in later revisions to a Realtek variant. This chip translates the DisplayPort streams into standard HDMI protocols before sending them down the USB-C port to the dock. Protection and Filtering
Here is the uncomfortable truth: Nintendo’s legal team has successfully DMCA’d GitHub repos and repair forums hosting these files.
is now soldered directly to the main motherboard, making internal storage upgrades or simple replacements nearly impossible.
Having the schematic allows you to trace power and signal paths, which is essential for diagnosing "black screen" or "no power" issues. Primary Component to Check M92T36, USB-C Connector, Battery Connector No Display (Black Screen) P13USB, OLED Driver Components, LCD Connector Wi-Fi Not Working Wi-Fi IC, Antenna Connections Joy-Cons Not Connecting Bluetooth Module/IC No Audio Audio Codec IC, Speaker FPC Connector 5. Resources for Schematic Diagrams
Other changes hinted at by the schematics include:
As of 2026, the best sources for Nintendo Switch OLED schematics are community-driven wikis and forum, such as:
Locate the specialized OLED power IC. Measure the output smoothing capacitors to ensure the positive and negative panel drive voltages are generating upon boot. If these rails read 0V, inspect the enable ( EN ) line coming from the SoC. 6. Structural Schematic Differences: V1/V2 vs. OLED
