CARVIN U7000 User manual

OVERALL SYSTEM
Operating Freq. - 794.90 - 0811.00
Frequency Stability ±0.005%
Modulation Mode FM(F3E)
Max Deviation ±40 kHz
Operating Range 500’ line of site
Operating Temp 40° F (4° C) to 110° F (43° C)
Freq. Response 50 Hz to 12 kHz ±3dB
RECEIVER
Receiving System Quartz controlled fixed frequency
Image Rejection ≥80 dB
Signal-to-noise
.90 dB
THD ≤1%
Sensitivity 3 µV for 20 dB sinad
Audio Output
Unbalanced 750 mV / 5K ohm
Balanced 56 mV / 600 ohm
Output Conn.
Unbalanced 1/4” phone jack
Balanced XLR M-type
Power Supply 15V DC, 400 mA, with provided
AC adapter–center positive
Dimensions 16.93” (430.0 mm) W x 1.92” (48.8
mm) H x 7.28” (185.0 mm) D
Weight 5.5 lbs (2.5 kgs)
Accessories Two antennas, rack mount
adapters, AC adapter
INTRODUCTIONS
Congratulations on your purchase of the U7000 and U7500 Professional Wireless
System. These systems include a receiver and either a Lavaliere mic, a handheld mic with
transmitter, a headworn mic, or a body-pack transmitter for guitar,.
The receiver features true UHF diversity reception. Two antennas feed two completely
independent RF sections on the same frequency. Automatic logic circuitry continuously
compares and selects the superior received signal providing better sound quality and
reducing the possibility of interference and dropouts. Both receivers are made to be
mounted in a standard 19” rack (1U).
The versatile body-pack transmitter is designed for use with condenser microphones as
well as Hi-Z instrument pickups. Both the handheld and body-pack transmitters use inter-
nal antennae.
Please note that in multiple-system applications there must be a transmitter-receiver
combination on a separate frequency for each input desired (one transmitter per receiver).
BELT PACK TRANSMITTER
RF Power Output 3 mW
Spurious Emissions Under federal regulations
Dynamic Range ≥100 dB
Input Connections High impedance, low imp, bias
Battery 9V (NEDA type 1604) alkaline
Current Consumption 40 mA typical
Battery Life Approx. 20 hours
Dimensions 2.56” W x 4.33” H x 1.00” D
Net Wt (no battery) 2.8 oz (78 grams)
HANDHELD MIC TRANSMITTER
Polar Pattern Unidirectional
RF Power Output 3 mW
Spurious Emissions Under federal regulations
Dynamic Range ≥100 dB
Microphone Element
Battery 9V (NEDA type 1604) alkaline
Current Consumption 30 mA typical
Battery Life Approx. 20 hours
Dimensions 9.50” long, 2.10” dia.
Net Wt (no battery) 12.7 oz (360 grams)
Accessory Included mic clip
76-20012 0203
12340 World Trade Drive, San Diego, CA 92128
800-854-2235
www.carvin.com
GETTING STARTED QUICKLY
If you’re like most new owners, you’re probably in a hurry to plug your wireless system in and
use it. Here are some brief instructions to get you going quickly. With the wireless system
unplugged and the unit turned off, complete the following procedures:
1. ANTENNAS Assemble the two antennas to the BNC connectors. For the U7000 the
BNC connectors are located on the front. For the U7500, the BNC connectors are locat-
ed on the rear. For rackmount installation of the U7500, the extension cables provided
bring the antenna inputs to the front of the receiver for mounting.
2. FREQUENCY CHECK Check the frequency of the system against the chart on the
back page to ensure you have the proper frequency for your area. The frequency is
marked on the back panel or bottom of the receiver.
3. OUTPUT CONNECTIONS There are two audio outputs on the back of the receiver:
balanced XLR and unbalanced 1/4”. Connect the appropriate cables for your system.
4. POWER CONNECTIONS Connect the included AC adapter to the DC power input on
the back of the receiver. Then plug the adapter into a standard 120 volt 60 Hz AC power
outlet.
5. RECEIVER POWER ON Turn down the Level control of the receiver as well as the
mixer. Switch on the receiver only. Do not switch on the transmitter yet. The power indi-
cator will light up even though the transmitter is not on. With U7000 one of the diversi-
ty indicator LEDs (A or B) will also light up.
6. TRANSMITTER SETTINGS Slide the battery cover off of the transmitter and adjust
the input switch to the appropriate setting; 1=Instrument, 2=headmic, 3=lav mic.
7. BATTERY SELECTION Insert a fresh 9-volt alkaline battery, observing the correct
polarity. Reinstall the battery cover.
8. TRANSMITTER POWER ON The transmitter has a 3-position power switch; “Off”,
“Stand-by”, and “On”. Switch the transmitter to the “on” position.
9. SOUND CHECK Do a sound check and gradually raise the level while watching the
AF level indicator. Increase the level until the AF level indicator peaks. This indicates that
maximum transmitter modulation without significant distortion has been reached.
10. SQUELCH To eliminate unwanted background RF noise adjust the squelch control.
Hopefully, this will help get you started. Have fun with your new U7000/U7500 wireless
system.
RECEIVING INSPECTION—read before getting started
INSPECT YOUR WIRELESS SYSTEM FOR ANY DAMAGE which may have occurred during
shipping. If any damage is found, please notify the shipping company and CARVIN immedi-
ately.
SAVE THE CARTON & ALL PACKING MATERIALS. In the event you have to re-ship your unit,
always use the original carton and packing material. This will provide the best possible pro-
tection during shipment. CARVIN and the shipping company are not liable for any damage
caused by improper packing.
SAVE YOUR INVOICE. It will be required for warranty service if needed in the future.
SHIPMENT SHORTAGE. If you find items missing, they may have been shipped separately.
Please allow several days for the rest of your order to arrive before inquiring.
RECORD THE SERIAL NUMBER on the enclosed warranty card or below on this manual for your
records. Keep your portion of the card and return the portion with your name and comments to us.
U7000/U7500 Wireless System
For your records, you may wish to record the following information.
Serial No._____________________ Invoice Date_______________
REGULATIONS AND SERVICING
This device complies with part 15 of the FCC Rules. Operation is subject to the condi-
tion that this device does not cause harmful interference.
This device complies with INDUSTRY CANADA R.S.S. 210, en conformite´ avec IC: RSS-
210/CNR210. Operation is subject to the following conditions: 1) This device may not
cause harmful interference and 2) this device must accept any interference received,
including interference which may cause undesired operation.
CAUTION! Electrical shock can result from removal of the receiver cover. Refer servicing
to qualified service personnel. No user-serviceable parts inside. Do not expose to rain or
moisture.
The circuits inside the receiver and transmitter have been precisely adjusted for optimum
performance and compliance with federal regulations. Do not attempt to open the receiv-
er or transmitter. To do so will void the warranty, and may cause improper operation.
CARVIN ENGINEERING DATA
c
WARRANTY
1 year on all electronic components. Does not cover cable connectors or broken parts
caused by normal wear or replacement part abuse.
U7500
U7000

RECEIVER
FRONT PANEL FEATURES
1. POWER SWITCH Depress to power the receiver. The RED led indi-
cates power to the unit.
2. LEVEL CONTROL Adjusts the audio level to your amp or mixer. If
distortion occurs, reduce the level.
3. SQUELCH CONTROL The squelch control is preset at the factory,
but can be adjusted if you must use the system in an area with consid-
erable RF interference. If there is audio output from the receiver when
your transmitter is off, adjust the squelch control so the system will
receive the signal from your transmitter but “squelch” or eliminate the
unwanted background RF noise. This adjustment can cause a reduction
in useable range of the wireless transmitter, so set the control to the low-
est position that reliably mutes the unwanted RF signals.
4. ACTIVE DIVERSITY CHANNEL LED (On U7000 UHF Receiver
only) The A and B LED indicate which antenna signal is being used. This
diversity receiver will automatically choose the stronger of the two.
5. AF LEVEL LED The AF level is displayed by an LED meter, which indi-
cates the strength of the audio signal received.
6. RF LEVEL LED The RF level is displayed by an LED meter, which
allows you to estimate the RF power with which a transmitted signal is
received. If less than 2 LED, reception will become noisy.
7. ANTENNA “A” Antenna for receiver “A.”
8. ANTENNA “B” Antenna for receiver “B.”
9. MOUNTING ADAPTERS For mounting the receiver in any stan-
dard 19” rack, attach adapters to receiver with screws supplied.
FRONT & REAR PANEL CONTROLS
1. Use only fresh alkaline batteries.
2. Position the receiver so that it has the fewest possible obstruction between
it and the normal location of the transmitter. Line-of-sight is best.
3. The transmitter and receiver should be as close together as conveniently possible.
4. The receiver antenna should be in the open and away from any metal or cement walls.
If in a rack, have the unit on top or angle antennas outward away from the metal rack.
5. A receiver cannot receive signals from two transmitters at the same time.
6. Each transmitter/receiver system operates on a factory-aligned, crystal co trolled
frequency. Look on the back of the receiver to obtain the channel number. This
number must match the transmitter if you purchase a replacement transmitter.
7. Turn the transmitter off when not in use. Remove the battery if the trans-
mitter is not used for a period of time.
TIPS TO OBTAIN THE BEST RESULTS
REAR PANEL FEATURES
10. ANTENNA JACK “A” Antenna connector for receiver ”A.” Attach
the antenna directly or extend it with an antenna cable for front mounting.
11. ANTENNA JACK “B” Antenna connector for receiver “B.” Attach
the antenna directly or extend it with an antenna cable for front mounting.
12. DC POWER INPUT Use AC power adapter, which supplies 12V DC.
13. OUTPUT LEVEL If the signal going to your amp or mixer is too loud or
distorted, set the output level to Low. If you lack volume, set the switch to High.
14. FUSE Turn the unit OFF and unplug the power supply before checking or
replacing the fuse. Use a philip screwdriver to remove the fuse holder.
Replace the fuse with the same rated fuse.
15. UNBALANCED AUDIO OUTPUT JACK 1/4” phone jack. Can be
connected to an unbalanced input of a mixer or tape recorder.
16. BALANCED AUDIO OUTPUT JACK XLR-type connector. A stan-
dard 2-conductor shielded cable can be used to connect the receiver out-
put to a balanced input on a mixer.
17. FREQUENCY CODE The transistor and receiver must have the same
frequency number.
5
2
1
8
11
4
6
10
8
5614 12 315 16
14 12
U7000 Front view
U7500 Front view
U7500 Rear view
U7000 Rear view
32 1 9
13 15 16
9
7

Fig. C Front View Fig. D Back View
Fig. H
Fig. F
Fig. E
H 1
BELT-PACK TRANSMITTER
BATTERY INSTALLATION An alkaline 9-volt battery is recommended.
1. Slide off the battery cover as shown in Figure A.
2. Carefully insert a fresh 9-volt alkaline battery, observing correct polarity
as marked inside the battery compartment. The transmitter housing is
designed to prevent incorrect installation of the battery. Do not force the
battery in.
3. Replace the battery cover.
BATTERY CONDITION INDICATOR The RED battery condition indica-
tor (Fig. B 1) should light strongly with a fresh battery. As the battery
weakens, the indicator will grow dimmer. When the indicator becomes
very dim or goes out, there is little life left in the battery. Replace it at once
for continued operation of the transmitter.
TRANSMITTER ON SWITCH The transmitter has a 3-position power
switch: “OFF,” center–in between ON-OFF aka “Standby” and “ON” as
shown in Fig. B 2. When the switch is set to “On,” the transmitter pro-
duces both RF and audio. With the switch set to “Standby,” the transmit-
ter sends only RF to the receiver, which prevents an on or off “pop” into
the audio. When turning on the mic the led indicator will flash only for the
time of switching on. If the led indicator remains lighted it means that the
battery has low power and needs to be changed.
INPUT CONNECTOR 1/8” input jack for Lavaliere mic, head mic, or
instrument input.
ADJUSTING INPUT SWITCH The transmitter has a three position sen-
sitivity input switch (fig. A 1). The three settings are as labeled; 1 (low)
instrument, 2 (mid) headmic, 3 (high) lav mic. Set the switch to appropriate
setting. If set to high for the wrong mic, distortion or low volume will result
BELT CLIP (Fig. D 1) Clip this to a belt, guitar strap or clothing. The clip
is removable if not needed.
HEAD MIC
MIC CONNECTION
Connect mic cable (Fig. E 1) to transmitter input jack (Fig. B 3).
LAVALIERE MIC
MIC CONNECTION
Connect mic cable (Fig. F 1) to transmitter input jack (Fig. B 3).
HAND HELD TRANSMITTER
HANDHELD TRANSMITTER BATTERY INSTALLATION
1. While holding the upper part of the transmitter body, unscrew the lower body
cover and slide off (Figure G).
2. Insert a fresh 9V battery. Be certain to observe correct polarity as marked inside
the battery compartment. The transmitter housing is designed to prevent
incorrect installation of the battery. Do not force the battery in.
3. Replace the lower body cover. Do not over tighten.
TRANSMITTER ON SWITCH The transmitter has a 3-position power switch:
“OFF,” center–inbetween ON-OFF aka “Standby” and “ON” shown in Fig. H 1. When
the switch is set to “On,” the transmitter produces both RF and audio. With the
switch set to “Standby,” the transmitter sends only RF to the receiver; the audio
source is turned off. After operation the microphone must be switched off. When
turning on the mic the led indicator will flash only for the time of switching on. If
the led indicator remains lighted it means that the battery has low power and needs
to be changed.
B 3
B 2
TRANSMITTER
HAND HELD MIC
INSTRUMENT CABLE
LAVALIERE MIC
HEAD MIC
Removable
Battery
Cover
Frequency code
F 7
E 1
Clip
Fig. G
B 1
Fig. A
Battery Cover Open
A 1
D 1
Fig. B Top View

CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
SAFETY INSTRUCTIONS (EUROPEAN)
The conductors in the AC power cord are colored in accordance with the following code.
GREEN & YELLOW—Earth BLUE—Neutral BROWN—Live
U.K. MAIN PLUG WARNING: A molded main plug that has been cut off from the cord is
unsafe. NEVER UNDER ANY CIRCUMSTANCES SHOULD YOU INSERT A DAMAGED
OR CUT MAIN PLUG INTO A POWER SOCKET.
IMPORTANT! FOR YOUR PROTECTION, PLEASE READ THE FOLLOWING:
WATER AND MOISTURE: Appliance should not be used near water (near a bathtub, washbowl,
kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken
so that objects do not fall and liquids are not spilled into the enclosure through openings.
POWER SOURCES: The appliance should be connected to a power supply only of the type
described in the operating instructions or as marked on the appliance.
GROUNDING OR POLARIZATION: Precautions should be taken so that the grounding or polar-
ization means of an appliance is not defeated.
POWER CORD PROTECTION: Power supply cords should be routed so that they are not like-
ly to be walked on or pinched by items placed upon or against them, paying particular atten-
tion to cords at plugs, convenience receptacles, and the point where they exit from the appli-
ance.
SERVICING: The user should not attempt to service the appliance beyond that described in
the operating instructions. All other servicing should be referred to qualified service person-
nel. If your unit is equipped with a fuse receptacle, replace only with the same type fuse. Refer
to replacement text on the unit for correct fuse type.
This symbol is intended to
alert the user to the pres-
ence of uninsulated “dan-
gerous voltage” within the
product’s enclosure that may be of suf-
ficient magnitude to constitute a risk of
electric shock to persons.
This symbol is intend-
ed to alert the user to
the presence of impor-
tant operating and
maintenance (servicing) instructions
in the literature accompanying the
appliance.
LIMITED WARRANTY
1 year on all electronic components. Does not cover cables, connectors, or broken parts caused by
normal ware and tear or dropage. Shipping costs are the responsibility of the customer. CARVIN
DOES NOT PAY FOR PARTS OR SERVICING OTHER THAN OUR OWN. A COPY OF THE ORIGINAL
INVOICE IS REQUIRED TO VERIFY YOUR WARRANTY. Carvin assumes no responsibility for horn
drivers or speakers damaged by this unit. This warranty does not cover, and no liability is assumed,
for damage due to: natural disasters, accidents, abuse, loss of parts, lack of reasonable care, incor-
rect use, or failure to follow instructions. This warranty is in lieu of all other warranties, expressed
or implied. No representative or person is authorized to represent or assume for Carvin any liability
in connection with the sale or servicing of Carvin products. CARVIN SHALL NOT BE LIABLE FOR
INCIDENTAL OR CONSEQUENTIAL DAMAGES.
When RETURNING merchandise to the factory, you may call for a return authorization number.
Describe in writing each problem. If your unit is out of warranty, you will be charged the current FLAT
RATE for parts and labor to bring your unit up to factory specifications.
HELP SECTION
RF Interference
If you encounter receiving interference (from other than an operating TV station), often it can be
eliminated by adjusting the receiver’s squelch control, as described in this manual.
Please note that wireless frequencies are shared with other audio services. According to Federal
Communications Commission regulations, “Wireless microphone operations are unprotected from
interference from other licensed operations within the band. If any interference is received by any
Government or non-Government operation, the wireless microphone must cease operation…”
If you need assistance with operation or frequency selection, please contact Carvin’s service
department.
Application Freq. (MHz) Belt Pack Hand Held Mic Head Mic Lavaliere Mic Instrument Cable
• Channel 1 800.20 UHBP-800.20 UHMC-800.20 UHHM UHLP UHGT
• Channel 2 802.30 UHBP-802.30 UHMC-802.3
• Channel 3 803.30 UHBP-803.30 UHMC-803.30
• Channel 4 804.88 UHBP-804.88 UHMC-804.88
• Channel 5 U5 - 794.90 UHBP-U5-794.90 UHMC-U5-794.90
• Channel 6 U6 - 797.50 UHBP-U6-797.50 UHMC-U6-797.50
• Channel 7 U7 - 796.30 UHBP-U7-796.30 UHMC-U7-796.30
• Channel 8 U8 - 798.80 UHBP-U8-798.80 UHMC-U8-798.80
• Channel 9 U9 - 804.90 UHBP-U9-804.90 UHMC-U9-804.90
U29 - 806.40 UHBP-U29-806.40 UHMC-U29-806.40
U30 - 809.60 UHBP-U30-809.60 UHMC-U30-809.60
U31 - 811.00 UHBP-U31-811.00 UHMC-U31-811.00
Multi-channel Systems
Following are groupings of frequencies suggested for multi-channel wireless systems.
• For use where TV channels 7, 9, 11 and/or 13 are operating: 8D-8M-8S-10C-10J-10W-12L-12S-12V
Traveling frequencies T2, T3 and/or T8 may be used with any of the above frequencies except for: 8D, 8M and 10C.
Interference may result from the use of these frequency combinations.
• For use where TV channels 8, 10 and/or 12 are operating: 7G-7I-9F-9Q-11G-11S-13Q or 7G-7I-9F-11G-11S-13B-13Q
Traveling frequencies T2, T3 and/or T8 may be used with any of the above frequencies with no interference problems.
CARVIN WIRELESS OPERATING FREQUENCIES AND REPLACEMENT PARTS
For future reference, please record your system information here (the serial numbers appear
inside the battery compartment of each transmitter, and on the bottom of each receiver):
Operating Frequency
Freq. Code____ ____ ____ Frequency____ ____ ____ •____ ____ ____ MHz
Receiver
Model_________________ Serial Number____ ____ ____ ____ ____ ____ ____
Transmitter
Model_________________ Serial Number____ ____ ____ ____ ____ ____ ____