JTS PT-920BG/2, Инструкция по эксплуатации

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8
4 Power Supply
G
Only insert batteries of the same type and always
replace all batteries.
G
If the unit is not used for a longer period (e. g. more
than a week), remove the batteries. Thus, the unit
will not be damaged in case of battery leakage.
1) Open the Velcro fastener and take the transmitter
out of the belt bag.
2) Remove the cover (11) of the battery compartment.
Then the battery compartment (10) will be acces -
sible.
3) Insert two 1.5 V batteries of size AA (R6) with the
positive and negative connections as indicated in
the compartment.
4) Replace the cover.
5 Setting the Transmitter into Operation
1) Connect the Lavalier microphone CM-501 supplied
to the mini XLR jack INPUT (4) and fasten it to your
clothes (e. g. tie or lapel) by means of the clip.
It is also possible to use another matching JTS
microphone with 4-pole mini XLR plug (see chap-
ter 3).
2) Before switching on the pocket transmitter, set the
receiver to an interference-free transmission chan-
nel, see instruction manual of the receiver.
3) Then switch on the transmitter: Slide the power
switch (2) to position ON. The display will indicate
the transmission group adjusted with the corre-
sponding transmission channel (3) and a battery
symbol (7) showing the current charging status of
the batteries in several steps:
fully charged exhausted
4) Set the transmitter to the same transmission group
and the same transmission channel adjusted on the
receiver
→
chapter 5.1.
5) Speak/sing into the microphone connected. The
volume level can be readjusted by changing the
sensitivity via the trimming control GAIN (9) on the
rear side of the control part (fig. 2). For this pur-
pose, use the adjusting key supplied. Adjust the
transmitter to the optimum level according to the
indication AF on the display of the receiver. If the
level is too high, the transmitter will distort; in this
case, turn back the control (if necessary, turn it to
the left stop). If the level is too low, a poor signal-
noise ratio will result; in this case advance the con-
trol correspondingly.
6) The transmitter can be locked to prevent accidental
change of the transmission channel or switching off
→
chapter 5.2.
7) After all adjustments have been made, put the
transmitter back into the belt bag and secure it
against slipping out by means of the Velcro
fastener.
8) Fasten the transmitter with the Velcro belt strap to
your clothes, e. g. belt.
9) To switch off the transmitter after operation, set the
power switch (2) to OFF. The display will shortly
show
before it will be extinguished completely.
5.1 Adjusting the transmission group
and the transmission channel
1) Keep the key SET (8) pressed for 2 s until the dis-
play shortly shows . Then the group indication
, , or flashes.
Note: To exit the adjusting mode without making an
adjustment, press the key SET so many times
until the display shows
.Then the unit will
return to normal operation.
2) Use the cursor keys to adjust the transmission
group: With the key (6) the groups will be scanned
in descending order, with the key (5) in ascending
order. The corresponding channels and transmis-
sion frequencies can be found in the table fig. 3.
Note: If other wireless transmission systems are
operated at the same time, the radio frequencies
of the individual systems should be carefully
matched to each other to prevent interference.
3) Press the key SET again to call the channel ad -
justing mode. On the display, the channel indication
1 – 16 will start flashing.
Group
Channel
A B C D
1 522.250 518.750 519.125 518.625
2 523.500 519.375 519.750 519.125
3 524.500 521.125 520.625 519.875
4 525.125 522.000 521.750 521.625
5 526.250 523.250 522.500 523.875
6 527.125 524.250 524.125 525.125
7 528.500 524.875 524.875 525.875
8 531.500 526.000 526.250 527.125
9 532.250 526.875 527.000 528.875
10 533.875 528.250 528.875 529.375
11 535.000 531.250 532.500 530.875
12 536.500 532.000 533.875 531.375
13 537.000 533.625 534.625 532.125
14 538.750 534.750 535.750 534.250
15 539.750 536.250 536.375 535.625
16 541.250 541.750 541.750 541.625
ENGLISH
Fig. 3 Transmission frequencies in MHz of the groups
and channels