M-7899 Industrial Circuit Board
Purchase the reliable Okuma M-7899 industrial circuit board (E4809-770-039-B). This genuine replacement top board is designed for Okuma CNC control systems, featuring robust components for lasting performance in industrial applications.
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Okuma M-7899 Industrial Circuit Board
The Okuma M-7899 is a robust industrial circuit board, often identified by part number E4809-770-039-B, designed as a critical component for Okuma CNC control systems. This green printed circuit board (PCB) is engineered for reliability in demanding industrial environments. It features a durable gold-plated edge connector (CN1) for a secure connection and multiple power transistors (TR1-TR9) mounted on heatsinks for efficient thermal management. Key integrated circuits, including PLD4B and 4538, manage logic and timing functions, while multiple trimmer potentiometers (VR5, VR6, etc.) allow for precise calibration. This board is an essential part for the repair and maintenance of compatible Okuma machinery, ensuring operational integrity and performance.
Technical Specifications:
- Model: M-7899
- Alternate Part Number: E4809-770-039-B
- Application: Top Board / CPU Board for Okuma CNC Control Systems (e.g., OSP5000L-G)
- Key Components: Gold-plated edge connector (CN1), Power transistors with heatsinks (TR1-TR9), Integrated Circuits (PLD4B, 4538), Trimmer potentiometers (VR5-VR8)
- Form Factor: Industrial Printed Circuit Board (PCB)

| Model | M-7899 |
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If you are buying multiple items, please contact us before checking out so we can get you the best combined rate for shipping.
Our default shipping rate is $100, which is enough to cover the cost of most shipments, but it is not our expected shipping rate. Due to the varying weights and sizes of products and customer locations, please contact us with your location and the products you are interested in to get the best current shipping rates.
ENERAL DELIVERY INFORMATION
Orders will be processed and shipping during standard working hours (0830 – 1700 GMT+8) Monday to Friday (excluding Bank Holidays)
On rare occasions, your order may be handled and/or processed on a Saturday. However, we are unable to ship items on weekends, therefore any orders dealt with on the weekend will be send out the next following working day.
The cut-off point for orders to be shipped the same day is 14:00 – please contact us to confirm stock levels before placing your order
Any orders placed after the cut-off will ship the next working day assuming all parts are in stock and ready for dispatch.
All orders:
- must be paid for in full before any goods are dispatched
- require a signature upon delivery. Please ensure delivery can be made to an address where someone will be available to sign for the delivery
- are packaged with great care, ensuring your order and the contents it contains, makes it safely through the delivery network

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