No Sync Signal Jrc Radar !!top!!

Inspect the modulator circuit board (e.g., Cpa-264 in some models) for damage or loose cable connections. Step 3: Receiver and Tuning Adjustments

The ship’s electrician, Miller, arrived on the bridge minutes later, clutching a multimeter and a weathered service manual . "Usually, it’s the or a loose terminal on the scanner," Miller grunted, checking the processor unit's wiring. no sync signal jrc radar

1. [Power on radar] → Transmit ON. ↓ 2. Antenna rotates? NO → Check scanner motor, fuse, belt. YES ↓ 3. Any radar video at all? NO → Check magnetron (unrelated but can mimic sync loss). YES ↓ 4. Image is rolling/spoking? YES → Suspect sync signal loss. ↓ 5. Access service menu (JRC: typically hold [Menu] + [Enter] at power-up). ↓ 6. View diagnostic → Look for "Trigger OK?" or "Heading pulse count." ↓ 7. Trigger = NO → Test cable continuity for trigger line. ↓ 8. Cable OK → Likely scanner trigger board failure. Inspect the modulator circuit board (e

For any navigating officer or marine engineer, the radar display is the electronic eye of the vessel. When a JRC (Japan Radio Co.) radar suddenly displays the cryptic error message — or sometimes "SYNC LOSS" or "NO VIDEO SYNC" — the screen often freezes, shows snow, or goes completely dark. This is not just an inconvenience; in restricted visibility, it is a navigation hazard. Antenna rotates