unknown opti-coupler Help

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I have a Massive Audio Class D amp that I am currently working on. The tie down clamp for the ouputs hit the opti and sparked. The original reason for the repair was to replace the input rca jack. I verified that the amp was in working condition. Now I need help to verify the defaced opti. Any help would be of help. Thanks in advance.
 
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This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.