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Inspect the modulator circuit board (e.g., Cpa-264 in some models) for damage or loose cable connections. Step 3: Receiver and Tuning Adjustments
: Ensure the scanner unit is receiving its dedicated AC or DC power (check fuses and breakers), as the display may be on while the scanner remains unpowered. Critical Safety Warning no sync signal jrc radar
Contact JRC technical support (Tokyo or regional offices) with your radar model number and firmware version. They maintain service bulletins specific to "No Sync Signal" for each legacy model. Alternatively, consult a certified JRC marine electronics technician – and provide them with oscilloscope screenshots from your troubleshooting. Inspect the modulator circuit board (e
The multicore cable between the radome/scanner and the display is the most frequent culprit. Damage from cable flexing, loose terminals at the strip, or corrosion in the 10-pin chassis plugs can interrupt signal flow. They maintain service bulletins specific to "No Sync