1. Introduction
This manual provides instructions for the replacement and general operation of the Raymarine ST70+ Anti-fuction Display Screen. This product is a replacement LCD screen only, designed to restore the visual functionality of your existing Raymarine ST70+ unit. It is a used product, confirmed to be in excellent working condition.
The Raymarine ST70+ is a versatile marine instrument display capable of showing a wide range of navigation, environmental, and vessel data. This replacement screen ensures continued clear and accurate data presentation.
2. Installation (Screen Replacement)
Important: Screen replacement should ideally be performed by a qualified technician. Improper installation can damage the display unit or the new screen. Always ensure the main unit is powered off and disconnected from all power sources before beginning installation.
- Power Off: Ensure the Raymarine ST70+ unit is completely powered off and disconnected from the vessel's power supply.
- Access the Display Unit: Carefully remove the ST70+ unit from its mounting location. Refer to your original ST70+ installation manual for specific instructions on how to safely remove the unit and access its internal components.
- Disassembly: Gently open the casing of the ST70+ unit to expose the internal LCD assembly. Note the position of all cables and connectors.
- Disconnect Old Screen: Carefully disconnect the ribbon cables and any other connectors attaching the old LCD screen to the main circuit board. Exercise extreme caution to avoid damaging the connectors or the main board.
- Remove Old Screen: Unmount the old screen from its housing. It may be held in place by clips, screws, or adhesive.
- Install New Screen: Position the new replacement LCD screen into the housing. Ensure it fits securely and is correctly aligned.
- Connect New Screen: Carefully re-attach the ribbon cables and other connectors from the new screen to the main circuit board. Ensure all connections are firm and correctly seated. Do not force any connections.
- Reassembly: Close the unit's casing, ensuring all seals are properly seated to maintain water resistance. Re-install the ST70+ unit into its mounting location.
- Power On and Test: Reconnect the power supply and power on the ST70+ unit. Verify that the new screen displays information correctly and without defects.
3. Operating the Display
The Raymarine ST70+ display is designed to show various types of marine data. The specific data displayed and how to navigate between screens is controlled by the buttons on the ST70+ unit (not included with this screen replacement). Below are examples of data screens you can expect to see:
Displays essential navigation information such as Latitude, Longitude, Course Over Ground (COG), Speed Over Ground (SOG), Distance To Waypoint (DTW), and Bearing To Waypoint (BTW).
Shows atmospheric and water conditions including Pressure (MBar), Humidity (%), Minimum Air Temperature (°F), Maximum Air Temperature (°F), and Sea Temperature (°F).
Provides real-time depth readings in Feet, often with a graphical history or trend indicator.
Features an analog gauge for Speed (KTS) alongside digital readouts for Heading (M) and Depth (FT).
A comprehensive screen displaying Depth (FT), Heading (M), Speed (KTS), Distance To Waypoint (DTW), Bearing To Waypoint (BTW), and Cross Track Error (XTE).
An analog compass rose indicating Heading and Speed (KTS), complemented by digital displays for Speed (KTS) and Depth (FT).
To change display modes or access specific data, refer to the user manual for your Raymarine ST70+ main unit.
4. Maintenance
- Cleaning the Screen: Use a soft, lint-free cloth dampened with fresh water to clean the display surface. For stubborn marks, a mild glass cleaner (non-ammonia based) can be used sparingly. Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the screen coating.
- Environmental Protection: While the ST70+ unit is designed for marine environments, prolonged exposure to direct sunlight when not in use can reduce the lifespan of the LCD. Consider using a protective cover when the vessel is docked or stored.
- Inspection: Periodically inspect the screen for any signs of physical damage or moisture ingress. Address any issues promptly to prevent further damage to the unit.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display/Blank screen | Loose ribbon cable connection; Power issue with main unit; Faulty main unit. | Check all ribbon cable connections to the new screen. Ensure the ST70+ unit is receiving power. If the issue persists, consult a professional technician or the original ST70+ manual. |
| Distorted or flickering display | Loose ribbon cable connection; Electromagnetic interference; Screen defect (unlikely for a tested 'working well' unit). | Verify screen connections. Check for nearby sources of electrical interference. If the problem continues, professional inspection is recommended. |
| Incorrect data displayed | Sensor malfunction; Main unit configuration error; Network issue (SeaTalk/NMEA). | This is typically not a screen issue. Refer to your ST70+ main unit manual for troubleshooting sensor and network problems. |
If troubleshooting steps do not resolve the issue, it is recommended to seek assistance from a certified marine electronics technician.
6. Specifications
- Product Type: Replacement LCD Screen
- Compatibility: Raymarine ST70+ Anti-fuction Display Unit
- Condition: Used, working well, in excellent condition
- Origin: Taiwan (China)
Note: Detailed technical specifications such as screen resolution, backlight type, and exact dimensions are dependent on the original Raymarine ST70+ unit's design and are not provided for this replacement screen component.
7. User Tips
- When handling the screen, always hold it by the edges to avoid touching the display area or damaging the delicate ribbon cables.
- Before fully reassembling the unit, perform a quick power-on test to ensure the screen is functioning correctly. This can save time if adjustments are needed.
- Keep the work area clean and free of dust during installation to prevent particles from getting trapped behind the screen.
8. Frequently Asked Questions
- Q: Is this a complete Raymarine ST70+ unit?
- A: No, this product is only the replacement LCD screen for the Raymarine ST70+ display unit. It does not include the main circuit board, casing, or buttons.
- Q: Do I need special tools for installation?
- A: Basic electronics tools (small screwdrivers, plastic prying tools) may be required. Due to the delicate nature of LCD replacement, professional installation is highly recommended.
- Q: How do I know if this screen is compatible with my ST70+?
- A: This screen is specifically for the Raymarine ST70+ model. Ensure your existing unit is indeed an ST70+ before purchasing.
9. Warranty and Support
As a used replacement part, this screen typically comes with a limited warranty from the seller, covering functionality upon arrival. Please refer to your purchase agreement for specific warranty terms.
For technical support related to the Raymarine ST70+ unit's overall functionality, software, or sensor integration, please consult the official Raymarine documentation or contact Raymarine customer support directly.
