Without a manufacturer’s datasheet, the schematic must be reverse-engineered from common application circuits.

Some IP-35155A variants have an internal MOSFET and use pin 6 as the drain output. Others are controllers driving an external FET. The schematic must reflect which version you have.

For detailed repair work, you can download the full PDF circuit diagrams from specialized electronics repositories:

Dr. Elena Vasquez stared at the flickering terminal. The air in the bunker smelled of rust, old coffee, and something chemical she couldn’t name. Her fingers hesitated over the keyboard.