Chiayo IrDA-9000 User manual

IrDA-9000
UHF 2-Way Synchronizing True Diversity Wireless Microphone System
ISO 9001
ISO 14001
OHSAS 18001
GREEN PRODUCT
Operation manual
IS O
14001
REG IS TER ED
O H S A S
18001
REG IS TER ED

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Thank you for choosing this 2-way synchronizing UHF wireless microphone system! This
2-way synchronization is realized by IrDA sensors.
Our products are designed to last and for user friendly operation. Each system consists of:
1. a receiver
2. a handheld or belt-pack transmitter
3. a pair of antennas
4. a switching adaptor
5. an operation manual
For more details, please take a few moments to go through this operating manual to have
a thorough understanding of the functions and operation of both transmitter and receiver.
Parts and functions of IrDA-9000 receiver
Front panel
1. Power switch
2. IR sensor area
3. Diversity indicator
4. Radio frequency indicator
5. Audio frequency indicator
6. LCD display
7. UP button
8. DOWN button
9. IrDA synchronization button
10.SET button
Rear panel
11.Antenna B socket (TNC)
12.Balanced audio output
13.Unbalanced audio output
14.DC in
15.Antenna A socket (TNC)
10
12
3 4 5 67
8
9
11 12 13 15
14

ISO 9001｜ISO 14001｜OHSAS 18001
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Changing CHANNEL / FREQUENCY
First, press "SET" till the display shows .
Then press UP or DOWN to select a new channel. As the channel changes, the frequency
changes accordingly, too. After the setting is made, the data will be automatically saved.
CHANNEL scanning
For an interference- free operation, a cleaner channel might be necessary if the current one
receives too much interference. Before scanning, the transmitter must be switched off.
First, press "SET" till the display shows .
Then press UP or DOWN to go to the next clean channel.
After the setting is made, the data will be automatically saved.
CHANNEL SYNCHRONIZATION of the receiver and transmitter
a.For a trouble-free synchronization, please limit the distance between the receiver and
transmitter to within 30cm.
b.Align both infrared areas
c.To change the receiver’s channel, please press the synchronizing button of the transmitter.
The receiver’s channel will be changed to the same channel as that of the transmitter.
d.To change the transmitter’s channel, please press the SYNC button of the receiver and
will appear on the receiver’s display, followed by
indicating data transferred. Please try again if appears.
Adjusting VOLUME level
This setting can be made right on the main menu .
Press UP or DOWN to choose a new level. After the setting is made, the data will be
automatically saved.
Adjusting SQUELCH level
First, press "SET" till the display shows .
Then press UP or DOWN to choose a new level. After the setting is made, the data will be
automatically saved.
What is a SQUELCH?
Squelch is a circuit function that acts to suppress the audio output of a receiver in the absence
of a sufficiently strong radio signal.
1. A higher Squelch level means that the audio path will be opened at a stronger RF signal. It
is equivalent to lowering the sensitivity of the receiver, thus shorter receiving distance. In
layman language, when interference noise is presence, turn the Squelch level higher until
noise is suppressed.

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2. A lower Squelch level means that the audio path will be opened at a weaker RF signal. It is
equivalent to increasing the sensitivity of the receiver, thus longer receiving distance. When
no interference noise is detected, just adjust the Squelch to the minimum.
Receiver installation
For best operation, the receiver should be at least 1m above
the ground and 1m away from a wall or metal surface to
minimize reflections. The transmitter should also be at least
1m away from a wall or metal surface to minimize reflections.
The transmitter should also be at least 1m away from the
receiver. Keep antennas away from noise source such as
motors, automobiles, neon light as well as large metal objects.
Audio output connection
There are two audio outputs on the back of the receiver, Mic-level balanced and Line-level
unbalanced. Use shielded audio cable for the connection between the receiver and the
amplifier/mixer. If the amplifier/mixer has a 1/4"(6.3mm) phone jack, connect a cable from the
1/4"(6.3mm) unbalanced audio output (LINE OUT) from the receiver to the amplifier/mixer. If
the amplifier/mixer has an XLR input, connect a cable from the balanced XLR audio output
(MIC OUT) from the receiver to the amplifier/mixer input.
Rack mounting
The receiver can be rack-mounted by either as single unit or two units together. If only one
receiver is to be mounted, an optional kit is available and it's installed as shown in Fig 1. If two
receivers are to be mounted, they can be assembled by another kit and installed as shown in
Fig 2.
(Fig 1)
(Fig 2)

ISO 9001｜ISO 14001｜OHSAS 18001
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UHF handheld transmitters（SQ-9000 IrDA(R)｜SQ-9000 IrDA｜SQ-8000 IrDA）
→SQ-9000 IrDA(R)｜SQ-9000 IrDA
→SQ-8000 IrDA
Parts and functions
SQ-9000 IrDA(R)
SQ-9000 IrDA
SQ-8000 IrDA
Cartridge
1
1
1
Battery power LED
2
2
2
Power switch
3
3
3
LCD
4
4
4
Menu button
5
5
8
Setting button
6
6
9
IrDA synchronizing button
7
7
5
Battery compartment
8
8
6
Color cap
9
9
-
IrDA sensor area
10
10
7
Charging port
11
-
10
GAIN control
-
-
11
Battery installation & indicator
This transmitter requires 2 x AA batteries to operate.
To install, remove the battery cover and slide the batteries according to the correct polarity into
the battery compartment & replace the battery cover.
Note: Batteries contain a corrosive acid that may leak and damage the transmitter when stored
for a long period. Batteries should be removed from the transmitter if it is not to be used for a
prolong period of about 4 weeks or more.
When the transmitter is switched ON a red LED will blink once to indicate the batteries
installed are in good condition. If the LED remains illuminated, it means the batteries are
weak and a replacement is required.
Channel synchronizing of the receiver and transmitter
1. For a trouble-free synchronization, please limit the distance between the receiver and
transmitter to within 30cm.
2. Align both sensor areas
3. To change the receiver’s channel, please press the synchronizing button of the transmitter
and will appear on the LCD. If the receiver’s channel is synchronized,
will appear. Otherwise, please try again if the LCD shows .
2 3 41 7 5 6 910 8

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4. To change the transmitter’s channel, please press the synchronizing button of the receiver.
The receiver will transmit synchronizing signal to the transmitter and change its channel.
Other settings
1. Channel setting
Use MENU button to go to the CHANNEL page .
Pressing SET button will increase the channel number. The corresponding frequency will
change accordingly. 3 seconds after selecting a channel, it will be automatically saved.
2. Battery type setting
Use MENU button to go to the BATTERY TYPE page .
Press SET button to select either NiMH (rechargeable battery) or AKLN (alkaline battery). 3
seconds after selecting a battery type, it will be automatically saved.
Remark: 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.
3. GAIN (Sensitivity) setting（SQ-8000 IrDA）
After taking off the cartridge module, a GAIN adjust trimmer potentiometer ○
11 is visible on the
small printed circuit board. When the transmitter is held at close proximity to the mouth, a lower
sensitivity (adjust in counterclockwise direction) is required, whereas a higher sensitivity (adjust
in clockwise direction) is necessary for stand mounted transmitter.

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UHF belt-pack transmitter（SM-9000 IrDA）
Parts and functions
1. Antenna
2. LCD
3. Cover release button
4. Power switch
5. IrDA synchronizing button
6. Menu button
7. Setting button
8. High-impedance gain control (GT)
9. Low-impedance gain control (MT)
10.Battery compartment
11.Audio mute switch
12.Battery power LED
13.IrDA sensor area
14.Mini XLR connector
15.Charging contacts
Battery installation & indicator
This transmitter requires 2 x AA batteries to operate.
To install, remove the battery cover and slide the batteries according to the correct polarity into
the battery compartment & replace the battery cover.
Note: Batteries contain a corrosive acid that may leak and damage the transmitter when stored
for a long period. Batteries should be removed from the transmitter if it is not to be used for a
prolong period of about 4 weeks or more.
When the transmitter is switched ON a red LED (2) will blink once to indicate the batteries
installed are in good condition. If the LED remains illuminated, it means the batteries are
weak and a replacement is required.
Channel synchronizing of the receiver and transmitter
1. For a trouble-free synchronization, please limit the distance between the receiver and
transmitter to within 30cm.
2. Align both sensor areas
3. To change the receiver’s channel, please press the synchronizing button of the transmitter
and will appear on the LCD. If the receiver’s channel is synchronized,
will appear. Otherwise, please try again if the LCD shows .
4. To change the transmitter’s channel, please press the synchronizing button of the receiver.
The receiver will transmit synchronizing signal to the transmitter and change its channel.
1
2
3 3
9
7
84 5
6
10
11 12
13
14
15

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GAIN setting (GT/MT)
Gain control enables the user to set different output levels. GT is for the use of instrument with
high impedance, such as guitar while MT is for the use of low impedance such as lapel or
headset microphones.
Other settings
1. Channel setting
Use MENU button to go to the CHANNEL page .
Pressing SET button will increase the channel number. The corresponding frequency will
change accordingly. 3 seconds after selecting a channel, it will be automatically saved.
2. Battery type setting
Use MENU button to go to the BATTERY TYPE page .
Press SET button to select either NiMH (rechargeable battery) or AKLN (alkaline battery). 3
seconds after selecting a battery type, it will be automatically saved.
Remark: 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.
CHIAYO ELECTRONICS CO.,LTD.
Http://www.chiayo.com.tw｜Email: [email protected]
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]