Chiayo DB-2400 User manual

Operation manual
CHIAYO ELECTRONICS CO.,LTD.
DB-2400
Digital Belt-pack Transmitter

1
DB-2400 Digital Belt-pack Transmitter
Parts and functions
1 Antenna
2 LCD
3 Menu button
4 Setting button
5 High-impedance gain
control (GT)
6 Low-impedance gain
control (MT)
7 Channel sync button
8 Battery compartment
9 Cover release button
10 Power switch
11 Battery power LED
12 Audio input connector
13 Charging contacts
Battery installation & indicator
●►○
●
When the transmitter is switched ON, the
battery power LED (red) will blink once to
denote the batteries installed are in good
condition
If the LED remains illuminated the batteries
have expired and require replacement.
This transmitter requires two
AA batteries to operate.
To install, open the battery cover
and insert the batteries into the
battery compartment.
IMPORTANT: Batteries contain corrosive acid that may leak and damage the transmitter when stored for a
long period. Batteries should be removed from the transmitter before storing without use for more than 4
weeks.
Changing CHANNEL / FREQUENCY
1 Press-release MENU button until the
CHANNEL-FREQUENCY page appears.

2 Press and hold SET button until the
channel number flashes to denote
readiness for setting.

3 Press-release SET (UP) or MENU (DOWN)
button to select a new channel.

4 After a channel is chosen, wait about 3
seconds to store the setting.
MHz
C H : 0 7 9
2480
MHz
C H : 0 7 9
2480
MHz
C H : 0 7 6
2477
11
12
13
10
1
2
3
4
5
6
8
7
9

2
Instructions
Channel synchronizing of the receiver and transmitter
1 Open the cover and then press and hold
the synchronizing button until “LINK”on the
LCD flashes.

2 Press and hold the receiver’s SYNC button
until the frequency icon appears. After
successful channel synchronizing, this icon
will disappear automatically.

Battery type setting
1 Press-release MENU button until the
CHANNEL-BATTERY TYPE page appears.

2 Press and hold SET button until NIMH or
AKLN flashes to denote readiness for
setting.

3 Press-release SET or MENU button to
select either NiMH (rechargeable battery)
or AKLN (alkaline battery).

4 After a battery type is chosen, wait about 3
seconds to store the setting.
IMPORTANT: NiMH battery must be selected when rechargeable battery is being used. Never select AKLN
(alkaline) when transmitter is intended for charging as alkaline battery isn’t rechargeable. Wrong battery
selection will result in battery sensing electronics to display wrong and misleading status information.
RF power setting
1 Press-release MENU button until the
CHANNEL-RF POWER page appears.

2 Press and hold SET button until the RF
power figure flashes to denote readiness
for setting.

3 Press-release SET (UP) or MENU (DOWN)
button to choose an output level from 0db
to 20db.

4 After an output level is chosen, wait about 3
seconds to store the setting.
C H : 0 0 0
L I N K
FREQ
SYNC
C H
FREQ CH.
RF AF
MHz
0 7 9
2480
C H : 0 7 6
A K L N
C H : 0 7 6
A K L N
C H : 0 7 6
N I M H
C H : 0 7 6
R F 0 8
C H : 0 7 6
R F 0 8
C H : 0 7 6
R F 1 2

DB-2400 Digital Belt-pack Transmitter
IMPORTANT: Lower output power will reduce the RF transmission distance and higher output
power will extend the possible RF transmission distance. However, higher output power places
slightly more load on the battery and will reduce operating duration faster than lower output
power.
GAIN setting (GT｜MT)
Gain control enables the user to set different output levels.

GT (LEFT) is for the use of instrument with
high impedance, such as guitar.
MT (RIGHT)is for the use of low impedance
such as lapel or headset microphones
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined
by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
FCC Caution: To assure continued compliance, any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this equipment. (Example - use only shielded interface cables when connecting
to computer or peripheral devices).
FCC Radiation Exposure Statement
This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be
installed and operated with a minimum distance of 20 centimeters between the radiator and your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
The antennas used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must
not be co-located or operating in conjunction with any other antenna or transmitter.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received, including interference that may cause undesired operation.
CE
Frequency: 2400~2483.5MHz , Maximal power: 6.47 mW
CE declaration info: www.chiayo.com.tw/declaration.html
CHIAYO ELECTRONICS CO.,LTD.
Http://www.chiayo.com.tw｜Email: [e-mail]
Office: 30, Lane 27, Section 4, Jen-Ai Road, Taipei 10685, Taiwan
Tel: [phone]｜Fax: [phone]
Factory: 88, Chung-Hsiao Street 2, Chiayi 60080, Taiwan
Tel: [phone]｜Fax: [phone]