Video Cassette Recorder is a highly complex electro mechanical system. Most of the time, it can be repaired by visually inspecting the mechanism. A reason can be a worn-out rubber wheel can be the cause for a bad picture. A simple cleaning procedure can set right a visible fault.

It is necessary to understand that all modern tape recorders use dedicated electronics parts, like controllers, power device, active and passive components, all made of them may be surface mounted devices. However a formal education in this will help a technician to be more proficient in troubleshooting techniques. While it is difficult to trouble shoot electronic parts, namely surface mounted devices (SMDs), it certainly provides necessary skills identify which part to be replaced. This demonstrator provides such skills.

Before you begun to study about VCR, you need to understand its territory. This section deals with how a VCR's mechanical deck is laid out, the individual parts and what they do. Developing an understanding of how it all works together goes a long way towards acquiring successful knowledge of VCR.

It is possible to view the following components in the trainer. They are

• Supply Reel Table
  
• Supply Reel Brake
  
• P1 Post
  
• Tape Tension Arm
  
• P2 Post
  
• Full Erase Head
  
• Roller Guide (supply)
  
• V-stop (supply)
  
• Video Drum
  
• V-stop (Take-up)
  
• Roller Guide (Take-up)
  
• ACE Head
  
• P3 Post
  
• Capstan Shaft
  
• Pinch Roller
  
• Take-up Reel Brake
  
• Take-up Reel Table

Now that you understand the individual parts and what they do, it is time to know how they work. The VCR Demonstrator is supplied with the following.

Video Cassette Recorder Demonstrator with various faults introduced in them by switch mechanism. They are:

• Record
  
• Channel UP
  
• Channel Down
  
• Record
  
• Reset
  
• Rewind
  
• Stop
  
• Play
  
• Forward and
  
• Eject.
  
• Hand held Remote control unit
  
• Partly recorded VHS cassette
  
• AV-RF Cable set assembly.