Velleman K4601, Иллюстрированное руководство по сборке

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Adjusting the picture:
Set the TV set to "search" on the UHF band until a clear picture is obtained. If a clear picture cannot be
obtained then try turning the trimmer capacitor to a different setting (turn 1 to 2 mm per test).
"Expand" or "compress" (see fig. 9.0) also have an influence on the picture quality, and it is always
necessary to close the housing before doing the test (if the test is done with an open housing then the
settings will probably have to be done again after the cover has been put in place).
Test and setup
Fig 9.0
L2
L2