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Multivision
Parameters
Necessary adjustments in Multivision system are only 2.
1.
Modulator output channel
2.
Adjustment of output level in remote receiver
Modulator output channel
Adjustment of output channel is made by some microswitches placed in the rear
panel of Multivision.
Make sure that the channel that is going to be selected is free and the one
immediately lower and upper are also free. Example: If you decide to use CH26
check that CH25 and CH27 are free specially lower one.
Microswitches are marked from 1 to 8.
Microswitch position follows this rule: If in the board of page 16 appears “0” then
suitable microswitch must be up, otherwise if in the board appears “1” position
must be down (ON).
Position 7 is used to generate a video test pattern (to tune TV sets). Switching ON
this position is activated the picture of two vertical white lines on black
background.
Position 8 is unused.
Use test pattern generator to tune the channel of Multivision
in TV sets of remote roomsaand also to check that the channel
is free of interferences. To modify the selection of microswitches
use a small screwdriver.
R 8