is the internal mainboard for various 4, 8, and 16-channel Hikvision DVR models Revision 1.2
If you are looking to this specific file, it is likely proprietary to a specific engineering firm or manufacturer. I cannot access private internal servers, but here are the best ways to locate it: ds-80249 -p rev 1.2 schematic
Technicians often seek the for specialized repairs that go beyond what is covered in the Hikvision User Manual : is the internal mainboard for various 4, 8,