It may be a custom-labeled integrated circuit where the technical schematic is restricted to authorized service centers. How to Find Specific Circuit Details
Provides low-voltage rails (usually 5V, 12V, or 24V) to the mainboard and backlight. Draft Blog Post: Troubleshooting the CHKV904G Power Board DIY Repair Guide: Understanding the CHKV904G Circuitry chkv904g circuit diagram full
Typical Architecture and Functional Blocks It may be a custom-labeled integrated circuit where
: Break the "full diagram" into logical stages, such as the Power Input , Signal Processing , and Output Stage . such as the Power Input