Chiayo NDR-3110 User manual

CHIAYO ELECTRONICS CO., LTD.
Operation manual
NDR-3110
UHF 1/2 19" Single-Channel Auto Sync
Diversity Receiver
9 9
MIN MAXIR RF AF SYNCCHANNEL PWR
NDR-3110 WIRELESS RECEIVER

1
NDR-3110 UHF 1/2 19" Single-Channel Auto Sync Diversity Receiver
Thank you for choosing this wireless microphone system! For more details, please take a few
moments to read this operating manual to have a thorough understanding of the function and
operation of both transmitter and receiver.
In the box
NDR-3110 receiver
one handheld / beltpack transmitter
(optional)
audio cable
switching adaptor
(plug varies from country to country)
operation manual
** Remark: The above specifications are subject to change without prior notice.
Important
1.Please make sure that the output DC voltage range of the switching power covers that
specified by the receiver before turning it on.
2.The RF indicator will glow to denote RF signal received after turning on the transmitter.
3.The receiver and transmitter must be the same frequency.
4.While using the transmitter, the audio signal indicator will glow to denote audio signal
received.
9 9
MIN MAXIR R F AF SYNCCHANN EL PWR
NDR-3110 WIRELESS RECEIV ER

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Instructions
Parts and functions
9 9
MIN MAXIR RF AF SYNCCHANNEL PWR
NDR-3110 WIRELESS RECEIVER
POWER ANT.B SQ MIC LINE AF OUT MIC OUT ANT.A
BALANCED
AF OUT
LEVEL
DC 12V
Channel scan buttons
IR sensor LED
RF signal indicator
Audio signal indicator
Channel synchronization button
Balanced audio output
Unbalanced audio output
MIC/LINE output impedance switch, only
for unbalanced audio output.
Squelch control
DC input
Antennas (fixed)
Power / volume control
Channel indicator

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NDR-3110 UHF 1/2 19" Single-Channel Auto Sync Diversity Receiver
Adjusting volume level
Volume level can be adjusted by rotating the Power/volume knob.
Scanning & changing channel
First turn on main power switch, the two 7-segment display LED will show last stored frequency.
For example, if channel 88 is 630.325MHz, the LED will first display 63, 03 and 25 in order and
return to 88. Select a channel that corresponds to the transmitter. When transmitter is turned on,
either A or B diversity indicator will light up to indicate that it is connected.
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.
Press ▲or▼and the receiver will scan and stop at the next clean channel.

Channel synchronizing of the receiver and transmitter
Align infrared areas of the receiver and transmitter within 10~30cm. (Fig.1)
Fig.1
9 9
MIN MA XIR RF AF SY NCCHAN NEL PWR
NDR-3110 WIREL ESS REC EIVER
01
IR RF AF SYNCCHANNEL
MIN
01
IR RF AF SYNCCHANNEL
MIN
06
IR RF AF SYNCCHANNEL
MIN

4
Instructions
Changing the receiver’s channel
Press the sync button on the receiver. The receiver will transmit the frequency to the transmitter
and synchronize the channel.
If it doesn’t work check that you have the IR sensor panels aligned, that they are facing each
other, devices are within 30cm of each other, and try again.
Adjusting squelch level
When interference is encountered, try reducing the sensitivity of the receiver by turning the SQ
control clockwise, making it less susceptible to interference. If this still does not solve the
problem, it means this frequency is not suitable. Adjust the squelch back to where it was and
use the scan function to locate a clear channel.
Audio output connection
◼Balanced output: XLR connector provides balanced audio output signal from this jack to the
mixer/amplifier. Use an audio output cable with “XLR” or “Cannon” connector, connect one
end to the balanced output jack of the receiver, and the other end to the “MIC IN” jack of the
mixer/ amplifier (Fig.2).
Level 
9 9
MIN MAXIR RF AF SYNCCHANNEL PWR
NDR-3110 WIRELESS RECEIVER
POWER ANT.B SQ MIC LINE AF OUT MIC OUT ANT.A
BALANCED
AF OUT
LEVEL
DC 12V
POW ER AN T.B SQ M IC LINE AF OU T MIC O UT ANT.A
BAL ANC ED
AF OU T
LEV EL
DC 12 V
AF OUT
LEVEL
MIC LINE
Fig.2

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NDR-3110 UHF 1/2 19" Single-Channel Auto Sync Diversity Receiver
◼Unbalanced output: ¼” PHONE PLUG connector provides unbalanced audio output signal
from this jack to the mixer/amplifier. Use an audio output cable with ¼” PHONE PLUG
connectors. Connect one end from the unbalanced output jack of the receiver, and the other
end to the “LINE IN” or “MIC IN”jack of the mixer/ amplifier.
Level switch setting
◼When connecting to the LINE /AUX IN of a mixer/amplifier, switch to “LINE” position (Fig.3).
DO NOT use the “MIC” position as they may not deliver a sufficient high output level
◼When connecting to the “MIC IN” jack of a mixer/amplifier, switch to “MIC” position (Fig.4).
Overload distortion may occur at the wrong level position.
LINE/AUX IN
MIC IN
Level 
Level 
Fig.3 Fig.4
Receiver installation
1. The receiver should be at least 1m above the ground and
1m away from a wall or metal surface to minimize
reflections.
2. The transmitter should also be at least 1m away from a
wall or metal surface to minimize reflections.
3. 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.
4. Power voltage should not below 12V DC or above 15V DC. Deficient current causes unstable
operating voltage or malfunction and over current shortens the product life and possibly
damages circuits.
POW ER AN T.B SQ M IC LIN E A F OUT MIC O UT ANT.A
BAL ANC ED
AF O UT
LEV EL
DC 12 V
POW ER AN T.B SQ M IC LIN E A F OUT MIC O UT ANT.A
BAL ANC ED
AF O UT
LEV EL
DC 12 V
MIC LINE
AF OUT
LEVEL
AF OUT
LEVEL
MIC LINE
1m
1m
1m

6
Instructions
Rack mounting
The slide rail structure on both sides of the receiver is designed to facilitate the user to connect
the two receivers in parallel and quickly install onto the cabinet.


Rack mount of two receivers

Rack mount of single receiver

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]I1491