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CBD‑2001” is a motor driver circuit board manufactured by JRC (Japan Radio Co.), part number H‑7EPRD0035. It’s commonly used in JRC’s marine radar systems like the JMA‑7100, 9100, NKE‑1125 series, and others, converting AC 100 V or 110 V power to control radar motor movement.
In marine radar systems, accurate control of the antenna’s rotation speed and stability is critical. If this board fails, your radar may stop rotating or do so unevenly, impacting navigation or safety at sea.
AC Input: 100 VAC or 110 VAC, depending on the specific “B” revision .
Function: Drives the motor that rotates the radar antenna, essential for keeping radar scanning correctly.
Compatibility: Mostly found in JRC radar units such as JMA‑7100/‑9100, JMR models, NKE‑1125PM/29/30/39, etc.
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