Based on your request, here is the information regarding the Samyung SMR-3700 Service Manual.
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You can find documentation for the Samyung SMR-3700 Marine Radar Go to product viewer dialog for this item. through the following sources:
This guide provides a roadmap for locating the SMR-3700 service manual and understanding the core components covered within it. Why You Need the Service Manual
Operational Checks: The system includes a 90-second preheating time and supports 10 levels of brightness adjustment and zoom functions.
Comprehensive Radar Overview: A detailed 10.4-inch LCD color radar manual is hosted on Scribd.
Issue 3: Display works but no audio