B. There are five different transformer with different voltages for the
AC power supply containing AC24/48, 48/110, 48/220, 110/220
and 220/380V, each transformer has two kind of voltage which will
be selected by a Jumper set at HI or LO position on the pc board as
shown on the following Fig.
4
Please find on the following, if the Jumper is set at HI position, the
voltages can be AC48, 110, 220, 220 or 380V; if the Jumper is set at
LO position, the voltage can be AC24, 48, 48, 110 and 220V.
T R A N S F O R M E R
J U M P E R
Changing the Frequency
There are two different PC board for using in two different frequency
range were called VHF and UHF. For each frequency range, by
changing the Crystal of the transmitter and receiver can obtain the
required frequency/channel.
NOTE: Do not replace the crystal for VHF into the UHF PC board
and vice versa. The indication for VHF or UHF is shown
on the PC Board with a check mark “v”.
INSTRUCTIONS:
(1) Pry up the crystal unit with a flat screwdriver.
(2) Remove the crystal unit from the system.
(3) Use a needle nose pliers to straighten both pins of the new crystal
unit.
JUMPER is used as
a voltage selector
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