A20112 Power Supply Schematic ^hot^ -

typically refers to the model number for a specific power supply board

Feedback Loop

The stabilized high-voltage DC is then converted to specific output levels (e.g., 12V, 24V) using a secondary switching controller and transformer . : a20112 power supply schematic

Keep R24 (10k) constant, recalculate R25:
R25 = 2.5V / (Vout - 2.5V) * R24 = 2.5 / (13.8 - 2.5) * 10k = 2.5/11.3 * 10k ≈ 2.2kΩ.
Replace R25 with a 2.2kΩ resistor.

If you have a link, PDF, or even a photo of a known working board with legible markings, that would save my day. typically refers to the model number for a

: Detailed pinouts and engine installation guides for these models can be found in the HP LaserJet MFP M72625/M72630 Engine Install Guide HP LaserJet E72525 Service Manual Common Failure Keep R24 (10k) constant, recalculate R25: R25 = 2

The A20112 is typically a compact switching power supply module. While often associated with specific proprietary industrial systems, these units generally follow standard switch-mode power supply (SMPS) topologies.

Before analyzing the schematic, understanding the standard specifications of the A20112 is critical: