How can i contact harmonic for support? Our products are our expertise, let us help you along the way. The Harmonic Technical Assistance Center (TAC) is the single point of contact for all your support questions and issues. With locations worldwide you can reach the team by chat, phone or email, 24/7.What is the harmonic technical assistance center tac? The Harmonic Technical Assistance Center (TAC) is the single point of contact for all your support questions and issues. With locations worldwide you can reach the team by chat, phone or email, 24/7. All of your Harmonic video products are supported worldwide by our team of technical support engineers.Where are harmononic drives made? Harmonic Drive Group Companies in Japan (Harmonic Drive Systems, Inc.) and Germany (Harmonic Drive SE) provide additional products. We have shared core values, product designs and quality standards. State of the art manufacturing facilities in the US, Japan and Germany enables us to locally serve the needs of our global customers.How long does it take to get in touch with harmonic? Someone will be in touch within 1-2 business days. I agree with Harmonic's Privacy Policy. By clicking submit below, you consent to allow Harmonic store and process the personal information submitted above to provide you the content requested. Phone: +1.212.896.1220