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Topic starter
20/08/2025 10:02 pm
Looking for the manual & schematics.
21/08/2025 12:27 am
The oldest manual from Vertical Xpress is for the HD-98. The mechanics are the same. What's different is the electrical setup. The HD-98 uses encoders and solid-state pcbs, whereas, the 73 uses cams and resistors. Hope this helps.
https://verticalxpress.com/media/download_files/component_manuals/hd_03_hd_04_door_operators.pdf
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