CHAPTER 32
TELEVISION CONTROLS
There are three types of controls or adjustments in a TV receiver. In the first group come those controls which are accessible to and used by the viewer. These are called user or customer controls. The second group consists of those controls which the service technician adjusts while setting up the receiver in the customer's house. These service controls are usually located on the rear apron of the receiver. The third group includes the alignment adjustments for tuning the frequency response and bandwidth of RF, IF, sound IF and colour circuits. Proper alignment of these adjustments, which requires specialised knowledge and equipment, is usually done only in the service shop.
Many colour receivers include automatic ...
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