Defective Secondhand Weinmann WM39900C Mechanical Ventilator Power Board

Objective AI Report

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Report date: 11.09.2025

Weinmann WM 28600c Electronic Board Analysis Report

Overview and Product Description

The product shown in the images is an electronic circuit board understood to be used in medical devices. The “WEINMANN” brand on the board indicates that the product belongs to a device developed by this manufacturer. The general structure of the board, its components, and connectors indicate that it is one of the main control units of a complex electronic device. This part is considered a spare part or a disassembled component that manages the functions of a device. Only one electronic board is present in the images.

Condition Assessment

The general condition of the electronic board is quite good for a used part. It is displayed without any box or packaging. Apart from slight dust accumulation on the board’s surface, no significant physical deformation, burn marks, cracks, or evidence of liquid contact have been observed. Solder points and circuit traces maintain their integrity. No adverse conditions such as swelling or leakage have been detected in sensitive components like large capacitors on it. Based on these observations, it can be stated that the board is in good physical condition.

Technical Details and Label Information

Significant technical information has been identified upon examining the labels and prints on the board. This information plays a critical role in determining the board’s identity and potential compatibility.

• Brand: WEINMANN
• Model/Part Codes: The codes “WM 28600c / 57423” and “WM 39904b” are clearly legible on the board.
• Serial Number: The serial number “130902083(i)” has been identified on the label.
• Other Codes: The expression “WM 28696 23.1” is present on one of the integrated circuits on the board.

The board features various pin connectors and a red connector extended with an external cable. These connection points enable the board to communicate with other components of the device (motor, sensor, display, etc.). All sockets and connectors appear physically sound.

Current and Potential Fault Risk

As a result of visual analyses, no findings indicating a current fault, such as breakage, burn marks, or obvious damage, have been observed on the electronic board. Although the functionality of the board’s electronic components cannot be tested, its intact physical integrity is a positive sign. No situations suggesting potential fault risks such as severe wear or corrosion have been observed. The product’s condition appears visually risk-free, apart from potential issues originating from the device it was removed from.