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Alto EQU Series User`s manual
R
LTO
User's Manual
U-16R/16H/16P SERIES
WIRELESS MICROPHONE SYSTEM
LTO
R
HM-38
www.altoproaudio.com
Version 1.0 SEP. 2007
English
IMPORTANT SAFETY INSTRUCTION
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
TO REDUCE THE RISK OF ELECTRIC SHOCK
PLEASE DO NOT REMOVE THE COVER OR
THE BACK PANEL OF THIS EQUIPMENT.
THERE ARE NO PARTS NEEDED BY USER
INSIDE THE EQUIPMENT. FOR SERVICE,
PLEASE CONTACT QUALIFIED SERVICE
CENTERS.
WARNING
To reduce the risk of electric shock
and fire, do not expose this equipment
to moisture or rain.
Dispose of this product should
not be placed in municipal waste
and should be separate collection.
11. Move this Equipment only with a cart,
stand, tripod, or bracket,
This symbol, wherever used, alerts you to the
specified by the
presence of un-insulated and dangerous voltages
manufacturer, or
within the product enclosure. These are voltages that
sold with the
may be sufficient to constitute the risk of electric
Equipment. When
shock or death.
a cart is used, use
This symbol, wherever used, alerts you to
caution when
important operating and maintenance instructions.
moving the cart /
Please read.
equipment
Protective Ground Terminal
combination to
AC mains (Alternating Current)
avoid possible
Hazardous Live Terminal
injury from tip-over.
ON: Denotes the product is turned on.
12. Permanent hearing loss may be caused by
OFF: Denotes the product is turned off.
exposure to \ extremely high noise levels.
CAUTION
The US. Government's Occupational Safety
Describes precautions that should be observed to
and Health Administration (OSHA) has
prevent damage to the product.
specified the permissible exposure to noise
1. Read this Manual carefully before operation.
level.
2. Keep this Manual in a safe place.
These are shown in the following chart:
3. Be aware of all warnings reported
with this symbol.
HOURS X DAY SPL EXAMPLE
4. Keep this Equipment away from water and
90 Small gig
8
moisture.
92 train
6
5. Clean it only with dry cloth. Do not use
95 Subway train
4
solvent or other chemicals.
97 High level desktop monitors
3
6. Do not damp or cover any cooling opening.
100 Classic music concert
2
Install the equipment only in accordance with
102
1,5
the Manufacturer's instructions.
105
1
7. Power Cords are designed for your safety. Do
110
0,5
not remove Ground connections! If the plug
0,25 or less 115 Rock concert
does not fit your AC outlet, seek advice from
a qualified electrician. Protect the power
According to OSHA, an exposure to high SPL in
cord and plug from any physical stress to
excess of these limits may result in the loss of
avoid risk of electric shock. Do not place
heat. To avoid the potential damage of heat, it is
heavy objects on the power cord. This could
cause electric shock or fire.
recommended that Personnel exposed to
equipment capable of generating high SPL use
8. Unplug this equipment when unused for long
hearing protection while such equipment is
periods of time or during a storm.
under operation.
9. Refer all service to qualified service personnel
The apparatus shall be connected to a mains
only. Do not perform any servicing other than
those instructions contained within the
socket outlet with a protective earthing
User's Manual.
connection.
10. To prevent fire and damage to the product,
use only the recommended fuse type as
indicated in this manual. Do not short-circuit
the fuse holder. Before replacing the fuse,
make sure that the product is OFF and
disconnected from the AC outlet.
The mains plug or an appliance coupler is used
as the disconnect device, the disconnect device
shall remain readily operable.
IN THIS MANUAL:
1.
2.
3.
4.
5.
6.
INTRODUCTION................................................................................1
FEATURES.......................................................................................3
CONTROL ELEMENTS......................................................................3
OPERATION.....................................................................................8
TECHNICAL SPECIFICATIONS.........................................................10
WARRANTY...................................................................................12
1. INTRODUCTION
Thanks for purchasing the LTO wireless microphone system. The U-16R/16H/16P
series is the delicately designed UHF, PLL synthesized system, with antenna built
inside the receiver for smart switching diversity control, the higher level RF signals
maybe fed into the system for greater reliability and coverage, therefore, the risks
of breakdown and interference are to be effectively reduced. You can manually adjust
the channel of the transmitter to match that of the receiver if you know about the
operating frequency of it.
Enjoy your U-16 series and make sure to read this Manual carefully before operation!
1. U-16R, PLL UHF DIVERSITY RECEIVER
VOLUME
ANT
ANT
U-16R
A
MIN
AF
B
PEAK
MAX
PL
ANT
POWER
R
LTO
2. Either one of the following transmitters:
U-16H, HANDHELD TRANSMITTER
R
LTO
1
1. INTRODUCTION
U-16P, BODY PACK TRANSMITTER
U-16P: A bodypack transmitter with belt clip. The bodypack transmitter will come
with either:
(1)
(1). A cable to be connected to an electric guitar or bass.
(2). A Lavalier Microphone. This is the little "bug" to be clipped on ties, shirts,
nipples, etc.
(3). A Headset Microphone that is fit like a pair of sunglasses so that the Player
has both hands free to play an instrument, dance, shot the Audience, etc.
(2)
(3)
LM-10, Clip microphone
Preset Impedance: 680 ohm
Freq. Response: 50-12 kHz;
Sensitivity: -65 dB 3 dB at 1kHz
Directional: 12 180 mm( 0.47" 7.1")
Weight: 22g(0.049Ib)
HM-38, Condenser microphone
Preset Impedance: 600 ohm
Freq. Response: 80-12 kHz;
Sensitivity: -68 dB+/-3 dB at 1kHz;
Directional: Uni-directional;
Weight: 52g (0.12Ib)
2
2. FEATURES
- FEATURES OF U-16R, PLL UHF DIVERSITY RECEIVER
2 Antennas and Switching diversity control
LED indication for RF, AF PEAK and POWER
Output volume control
Squelch control to minimize therefore interferences
- FEATURES OF U-16H AND U-16P TRANSMITTERS
Soft touch painting for comfortable use
Channel frequency adjusted manually
- COMMON FEATURES
PLL synthesized design
Consistent operating frequencies to comply with the EMC regulations
16 channel frequency presets
Manufactured under ISO9000: 2000, ISO/TS16949: 2002 quality management
System
SP
OT
L
IG
3. CONTROL ELEMENTS
HT
3.1 U-16R, PLL UHF Diversity Receiver
THE FRONT PANEL
6
4
5
VOLUME
ANT
ANT
U-16R
A
MIN
3
2
6
1
AF
B
MAX
PEAK
PL
ANT
POWER
R
LTO
1 Power Switch
It switches your U-16R ON and OFF.
3
SP
OT
L
IG
3. CONTROL ELEMENTS
HT
2 Power LED
This LED lights up when the receiver is powered on and vice versa.
3 AF Peak LED
This LED lights up when the signal reaches PEAK and you will get distortion.
4 RF LED
This LED lights up when antenna receives signals.
Note: U-16R has two antennas. LED A lights up when antenna A receives
more signals than antenna B. LED B lights up when antenna B receives more
signals than antenna A.
5 Volume Control
It is used to adjust the volume of your U-16R.
6 Antennas
The antennas receive the signals from transmitter.
THE REAR PANEL
1
MODEL
2
3
BAL
DC IN
AUDIO
OUTPUT
4
5
UNBAL
CH SEL
SQUELCH
SERIAL
12-18V
+
0.3A
-
MAX
1 DC Input
You can connect the supplied AC Adapter to this socket.
2 Squelch Control
It is used to adjust the squelch level by using an adjusting bar which is placed in
the microphone. The adjustable squelch range is 95.0~65.0 dB.
3 Audio Output XLR
To connect a balanced cable with XLR connector (we forgot to tell you that
although your U-16 system is wireless, you still need to connect the receiver
to your Mixing Desk and to a wall plug!)
4 Audio Output Jack
To be used with an unbalanced cable and standard 1/4" mono jack.
5 Frequency Band Selector
Using a select bar, you can select the right frequency band you want.
4
SP
OT
L
IG
3. CONTROL ELEMENTS
HT
3.2 U-16H, Handheld Transmitter
1
6
BATT. ON
MIC
OFF
PR
AL PLL WIR
3
EL
2
E
R
E
IO
N
SS
OF
SS
4
LTO
LOW
5
7
R
LTO
1 Front Grill
This spring steel mesh grill will protect the microphone capsule during a live
performance. Especially made for heavy metal players, alcohol, drugs, etc.
2 Power Switch
Set the power switch to "ON" position, then the microphone is turned on and
the BATT LED flashes once. Set the power switch on "OFF" position, then the
microphone is turned off and the BATT LED lights off slowly.
3 Power LED
When the unit is turned on, this LED flashes once. When the unit is turned off,
this LED lights off slowly. When the batteries are short of power, this LED lights
up.
4 Band Selector
With an adjusting bar, the band selector can be used to switch to an expected
frequency. Before switching frequencies, turn off the microphone first and then
turn on it.
5 Adjusting Bar
This adjusting bar is placed in the microphone. It is used to adjust squelch
control and band selector for switching frequencies.
6 Antenna
The antenna is integrated into the transmitter body for transmitting signals.
7 Battery Compartment
This unit may be powered from one pair dry or rechargeable batteries, size AA
1.5 V.
5
SP
OT
L
IG
3. CONTROL ELEMENTS
HT
3.3 U-16P, Body Pack Transmitter
7
3
4
6
5
R
POWE
ON
8
LOW
BATT.
ANT.
OFF
2 1 10
9
1 Power Switch
Set the power switch in the position "ON", then the microphone is turned on
and flashes once. Set the power switch in the position "OFF", then the
microphone is turned off and the BATT LED lights off slowly.
2 MINI 4P Connector
This connector is used to connect the unit with the clip microphones, for
example, HM-38 condenser microphone or LM-10 clip microphone.
(1) (4) (3)
Pin
Pin
Pin
Pin
1
2
3
4
GND
Phantom power supply for condenser microphone
For guitar, bass and keyboards
For dynamic or condenser microphone
(2)
3 Battery Compartment
This unit may be powered from one pair dry or rechargeable batteries, size AA
1.5 V.
4 Belt Clip
It is the detachable belt clip for easy carry during the live applications.
5 Antenna
It is a flexible antenna. To get effective transmission, never cover the antenna with
hand, clothes, etc during the operation, and always position the transmitter nearby
the receiver.
6
SP
OT
L
IG
3. CONTROL ELEMENTS
HT
6 GT Switch
It is used to adjust the input signal level of electrical guitar. When an electrical
guitar is being used, it is ineffective to adjust MT switch.
7 MT Switch
It is used to adjust the input signal level of microphone. When an microphone
is being used, it is ineffective to adjust GT switch.
8 Band Selector
With the adjusting bar, the band selector can be used to switch to an expected
frequency before switching the frequencies, turn off the transmitter first and
then turn on it.
9 Adjusting Bar
It is used to adjust BAND SELECTOR, MT SWITCH and GT SWITCH.
10 POWER LED
When the unit is turned on, this LED flashes once. When the unit is turned off,
this LED lights off slowly. When the batteries are short of power, this LED
flashes. When the batteries can not be used, this LED lights up.
7
4.3.OPERATION
CONTROL ELEMENTS
4.1 FOR the U-16R, PLL UHF DIVERSITY RECEIVER
- Manually Selecting Frequency
With an adjusting bar, adjust the band selector to select the right frequency
which matches the frequency of transmitter.
- Output Volume Control
It is used to control the output volume. Turn the knob clockwise, the output
volume will increase. Turn the knob counter-clockwise, the output volume will
decrease.
- Squelch Control
The job of a squelch circuit is to reduce audible noise. It eliminates noise during
Pauses in the audio signal by muting the receiver every time and the audio level drops
below a defined threshold. The squelch control on the receiver sets this
threshold. Use the squelch control with care! If the squelch threshold is too
high, the squelch will not only cut out noise but mute quiet audio signals as
well because the squelch responds to the detected voltage and cannot
distinguish between wanted signal and noise. Besides that, a too high squelch
threshold also decreases the usable range. The squelch range is 95.0 dB~
65.0 dB. Use an adjusting bar to adjust the squelch selector for a right
squelch threshold.
4.2 FOR the U-16H/16P TRANSMITTER
- Frequency Select
In practice, to effectively avoid the interference from any lighting equipment, computers,
fax machines, etc nearby, It is usually advised to switch to another frequency
to get best performance. The frequency range of this system is UHF, 798 MHz
~ 827 MHz, and it is divided into 16 frequency bands according to the country's
EMC regulations; Each frequency band can be manually adjusted with an adjusting
bar. If you want to switch a frequency, you have to turn off the unit, adjust
frequency and then turn it on again.
- Battery Replacing And Charging
Please be advised to use only one pair of AA 1.5 V batteries for power supply.
Note: Danger of explosion if battery is incorrectly replaced. Replace the
batteries only with the same or equivalent type.
8
CONTROL ELEMENTS
4.3.OPERATION
4.3 Operating frequency matches between Receiver and Transmitter
To make the operating frequency matched between the transmitter and the
receiver, adjust the transmitter and receiver manually with the adjusting bar for
the same frequency. Please refer to the following table for selecting frequency.
Caution:
a: If several apparatus are used at the same time, the same frequency can not be
used for them.
b: Ten channels can be used simultaneously at most. They are respectively CH 0,
CH 1, CH 3, CH 4, CH 6, CH 7, CH 8, CH 9, CH E, CH F. The rest 6 channels
are available for customer's choice.
9
CH 0~CH F
FREQUENCY
0
798.125 MHz
1
798.325 MHz
2
3
798.925 MHz
799.325 MHz
4
800.725 MHz
5
6
802.725 MHz
805.725 MHz
7
807.925 MHz
8
811.525 MHz
9
815.725 MHz
A
820.825 MHz
B
822.725 MHz
C
823.225 MHz
D
824.625 MHz
E
825.425 MHz
F
826.625 MHz
5. TECHNICAL SPECIFICATIONS
U-16R
MODEL
Channel
Receiver type
Oscillation mode
Frequency band
Frequency response
Frequency stability
Modulation mode
T.H.D
Dynamic
Audio output
Balance output
S/N Ratio
RF sensitivity
Power supply
Dimensions
Weight
Single-Channel
Diversity
PLL UHF SYNTHESIZED
UHF 798~827 MHz
50 Hz~50 kHz ( 3 dB)
0.005%
FM (F3E)
1%
100 dB
Unbalanced 6.3 mm phone jack 280 mV
15 kHz deviation
360 mV at
15 kHz deviation
90 dB
- 100 dbm/ 30 dB sinad
DC 12 V/500 mA (AC 115 V/230 V 50/60 Hz adaptor)
130 (W) 44 (H) 201 (D)
0.365 Kg (Approx.)
MODEL
Oscillation mode
Carrier frequency band
Frequency response
Frequency stability
T.H.D
Modulation mode
RF output power
Dynamic
Tone frequency
Current drain
Max. Deviation
Battery
Microphone Capsule
Dimensions
Weight
PLL UHF SYNTHESIZED
UHF 798~827 MHz
50 Hz~15 kHz ( 3 dB)
0.005%
0.8%
FM (F3E)
10 mW
100 dB
32.768 kHz
150 mA
35 kHz deviation
"AA" type 2 pcs (battery life: more than 6 hours)
Dynamic capsule
220 mm x 48.8 mm
0.16 kg (Approx.)
U-16H
10
5. TECHNICAL SPECIFICATIONS
MODEL
Oscillation mode
Carrier frequency band
Frequency response
Frequency stability
T.H.D
Modulation mode
RF output power
Dynamic
Tone frequency
Current drain
Max. deviation
Battery
Microphone capsule
4 bands choice
Dimensions
Weight
11
U-16P
PLL UHF SYNTHESIZED
UHF 798~827 MHz
50 Hz~15 kHz ( 3 dB)
0.005%
0.8%
FM (F3E)
10 mW
100 dB
32.768 kHz
150 mA
35 kHz deviation
"AA" type 2 pcs (use for more than 6 hours)
Condenser or dynamic capsule
1. Condenser
2. Dynamic
3. Electric instrument
4. Ground
65 (W) 111 (D) 31 (H)
0.105 Kg (Approx.)
6. WARRANTY
1. WARRANTY REGISTRATION CARD
To obtain Warranty Service, the buyer should first fill out and return the enclosed
Warranty Registration Card within 10 days of the Purchase Date.
All the information presented in this Warranty Registration Card gives the
manufacturer a better understanding of the sales status, so as to provide a
more effective and efficient after-sales warranty service. Please fill out all the
information carefully and genuinely, miswriting or absence of this card will void
your warranty service.
2. RETURN NOTICE
2.1 In case of return for any warranty service, please make sure that the
product is well packed in its original shipping carton, and it can protect your
unit from any other extra damage.
2.2 Please provide a copy of your sales receipt or other proof of purchase with
the returned machine, and give detail information about your return address
and contact telephone number.
2.3 A brief description of the defect will be appreciated.
2.4 Please prepay all the costs involved in the return shipping, handling and
insurance.
3. TERMS AND CONDITIONS
3.1 LTO warrants that this product will be free from any defects in materials
and/or workmanship for a period of 1 year from the purchase date if you
have completed the Warranty Registration Card in time.
3.2 The warranty service is only available to the original consumer, who purchased
this product directly from the retail dealer, and it can not be transferred.
3.3 During the warranty service, LTO may repair or replace this product at its
own option at no charge to you for parts or for labor in accordance with the
right side of this limited warranty.
3.4 This warranty does not apply to the damages to this product that occurred
as the following conditions:
Instead of operating in accordance with the user's manual thoroughly, any abuse
or misuse of this product.
Normal tear and wear.
The product has been altered or modified in any way.
Damage which may have been caused either directly or indirectly by another
product / force / etc.
Abnormal service or repairing by anyone other than the qualified personnel or
technician.
And in such cases, all the expenses will be charged to the buyer.
3.5 In no event shall LTO be liable for any incidental or consequential damages.
Some states do not allow the exclusion or limitation of incidental or
consequential damages, so the above exclusion or limitation may not apply to
you.
3.6 This warranty gives you the specific rights, and these rights are compatible
with the state laws, you may also have other statutory rights that may vary
from state to state.
12
SEIKAKU TECHNICAL GROUP LIMITED
NO. 1, Lane 17, Sec. 2, Han Shi West Road, Taichung 40151, Taiwan
http://www.altoproaudio.com Tel: 886-4-22313737
email: alto@altoproaudio.com Fax: 886-4-22346757
All rights reserved to ALTO. All features and content might be changed
without prior notice. Any photocopy, translation, or reproduction of part of this
manual without written permission is forbidden. Copyright c 2007 Seikaku Group
NF02963-1.0
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