Building a DVR

How do we build a DVR from scratch?   Here is a mini-guided tour to our R&D facility.  

The process starts with a list of needed specifications or features.  From these requirements, two teams will collaborate in the design and production of the DVR, namely hardware and software.  

Depending on the requirement, hardware will design the motherboard only or including the case.  A block diagram is the first order of business to based on all the spec requirement.  Following the block diagram would be a schematic diagram (see left illustration).  The whole process takes around ten (10) working days or less to complete.

     Sample schematic diagram

After the schematics, the printed circuit board (PCB) will be designed based on the schematic diagram.  The process takes around 2 days to complete.    For the casing, the mechanical team will produce the mock up prior to producing the engineering sample.

PCB board design

Mechanical

After each and every stage, a quality control staff checks and monitors the process and output as per established company standards.  Next process is PCB production.

The finished PCBs will be tested and a few samples will undergo surface mount device (SMD) assembly.

 

After assembly completion, the finished board is tested for defects.  The few samples produced will be used for the prototype and subsequent engineering samples for further testing.  

Part of the finished engineering samples will then be turned over to software for testing and driver and application development.

After completing the driver and applications, the finished product will undergo extensive product testing prior to the release of the commercial version. This will include useability testing, aging test, feature and function testing.

Some of our sample products are shown below: