Owners Manual Manuel de lutilisateur Bedienungsanleitung Manuale di Istruzioni Manual de Instrucciones Gebruiksaanwijzing

RA-1070

Stereo Integrated Amplifier Amplificateur Intgr Stro Stereo-Vollverstrker Amplificatore Integrato Amplificador Integrado Estereofnico Stereo Versterker
I N T E G R AT E D S T E R E O A M P L I F I E R R A - 10 70

LISTENING

RECORDING

VOL UME

PROTECTION

DVD /VIDEO

AUX 1 AUX 2 TAPE 1 TAPE 2

SPEAKERS PHONES

OFF A B A+B

CONTOUR

L-1 L-2 OFF H LH

AUX 1 AUX 2 TAPE 1 OFF

RA-1070 Stereo Integrated Amplifier

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING: There are no user serviceable parts inside. Refer all servicing to qualified service personnel. WARNING: To reduce the risk of fire or electric shock, do not expose the unit to moisture or water. Do not allow foreign objects to get into the enclosure. If the unit is exposed to moisture, or a foreign object gets into the enclosure, immediately disconnect the power cord from the wall. Take the unit to a qualified service person for inspection and necessary repairs. Read all the instructions before connecting or operating the component. Keep this manual so you can refer to these safety instructions.
APPLICABLE FOR USA, CANADA OR WHERE APPROVED FOR THE USAGE CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT. INSERT FULLY. ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU AU FOND.
Heed all warnings and safety information in these instructions and on the product itself. Follow all operating instructions. Clean the enclosure only with a dry cloth or a vacuum cleaner. You must allow 10 cm or 4 inches of unobstructed clearance around the unit. Do not place the unit on a bed, sofa, rug, or similar surface that could block the ventilation slots. If the component is placed in a bookcase or cabinet, there must be ventilation of the cabinet to allow proper cooling. Keep the component away from radiators, heat registers, stoves, or any other appliance that produces heat. The unit must be connected to a power supply only of the type and voltage specified on the rear panel of the unit. Connect the component to the power outlet only with the supplied power supply cable or an exact equivalent. Do not modify the supplied cable in any way. Do not attempt to defeat grounding and/or polarization provisions. Do not use extension cords. Do not route the power cord where it will be crushed, pinched, bent at severe angles, exposed to heat, or damaged in any way. Pay particular attention to the power cord at the plug and where it exits the back of the unit. The power cord should be unplugged from the wall outlet if the unit is to be left unused for a long period of time. Immediately stop using the component and have it inspected and/or serviced by a qualified service agency if: The power supply cord or plug has been damaged. Objects have fallen or liquid has been spilled into the unit. The unit has been exposed to rain. The unit shows signs of improper operation The unit has been dropped or damaged in any way Place the unit on a fixed, level surface strong enough to support its weight. Do not place it on a moveable cart that could tip over.

English

Figure 1: Controls and Connections Commandes et branchements Bedienelemente und Anschlsse Collegamenti e comandi Controles y Conexiones De bedieningsorganen en aansluitingen
I N T E G R AT E D S T E R E O A M P L I F I E R R A - 0

VO L U M E

EXT REM

IR OUT 1 2

12V TRIGGER OUT 1 2

COMPUTER I/O

IN TAPE 2
INTEGRATED AMPLIFIER MODEL NO. RA-1070 POWER CONSUMPTION: 400W

SPEAKER IMPEDANCE

IN TAPE 1 1
A AND B 8 OHMS MINIMUM A OR B 4 OHMS MINIMUM

PRE OUT 2

SPEAKERS A

CD OUT LEFT

SPEAKERS B LEFT RIGHT LEFT

RIGHT SWITCHED 200W MAX.

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOTEXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE
Figure 2: RR-969 Remote Control Tlcommande RR-969 Fernbedienung RR-969 Comando a distanza RR-969 Mando a Distancia RR-969 A De afstandsbediening RR-969

PREV CH

AUD CD

TV TUN

SAT AV 1

VCR AV 2

TV/VCR PIP SWAP TUN V2 INPUT2 DIRECT EXT IN PTY

SEARCH

SEARCH+

POS PH V3 INPUT3

ANT TAPE1 V4 TV/VCR

MODE TAPE2 V5 RECORD

FM NARROW

C D E G H F I

CD V1 INPUT1

FM MONO

FILTER SHIFT

ZONE TA

PRESET TP

SUR + DISPLAY

TIME/ALM

/ CLONE

UP ENT

LANG PAGE 1/2

PRELOAD

PAUSE STOP

Figure 3: Phono and Line Inputs; Recorder Input/Output Entres Phono et Ligne ; Entre/sortie enregistrement Phono- und Hochpegeleingnge; Tape-Ein- und -Ausgnge Ingressi di linea e phono ingresso/uscita del registratore Entradas de Fono y de Lnea; Entrada/Salida para Grabador De platenspeleringang en lijningangen; opname/weergave-apparaat in- en uitgang

CD PLAYER

OUTPUT R L

ROTEL RA-1070

SWITCHED 200W MAX.

RECORDER

OUTPUT
Figure 4: Speaker Output Connection Branchements des sorties enceintes acoustiques Anschlu der Lautsprecher Collegamento duscita del diffusore Salidas para la Conexin de las Cajas Acsticas De luidsprekeraansluitingen

ROTEL RA-1070 SPEAKER

EXT REM IR OUT 12V TRIGGER OUT COMPUTER I/O

SPEAKER

English. 8. 9

Contents

Figure 1: Controls and Connections Figure 2: RR-969 Remote Control Figure 3: Phono and Line Inputs; Recorder Input/Output Figure 4: Speaker Output Connection 4 4
12 Volt Trigger Outlet Computer I/O Connector

About Rotel

A family whose passionate interest in music led them to manufacture high fidelity components of uncompromising quality founded Rotel 40 years ago. Over the years that passion has remained undiminished and the goal of providing exceptional value for audiophiles and music lovers regardless of their budget, is shared by all Rotel employees. The engineers work as a close team, listening to, and fine tuning each new product until it reaches their exacting musical standards. They are free to choose components from around the world in order to make that product the best they can. You are likely to find capacitors from the United Kingdom and Germany, semi-conductors from Japan or the United States, and toroidal power transformers manufactured in Rotels own factory. Rotels reputation for excellence has been earned through hundreds of good reviews and awards from the most respected reviewers in the industry, who listen to music every day. Their comments keep the company true to its goal the pursuit of equipment that is musical, reliable and affordable. All of us at Rotel thank you for buying this product and hope it will bring you many hours of enjoyment.

Audio Controls.. 9 Volume Controls and Listening Selector Buttons Recording Selector Buttons Contour Control Phones Output and Display and Display 9 9
About Rotel.. 5 Getting Started.. 5 A Few Precautions Placement Cables 6
Remote Control Functions.. 9 Selecting Listening Input Selecting Recording Input Mute Button 9
RR-969 Remote Control. 6 Using the RR-969 Controlling Other Components Remote Sensor Programming the RR-6
FL Display Control. 10 Turning FL Display On/Off Customizing FL Display Clearing FL Display Customization Protection Circuitry 10
AC Power and Control.. 7 AC Power Input Power Switch and Remote Power Button Auxiliary Power Outputs 7
Troubleshooting.. 10 Power Indicator Is Not Lit Fuse Replacement No Sound Protection Indicator Is Lit 10 10
Input Signal Connections. 7 Phono Input and Ground Connection Line Level Inputs Recorder Connections Preamp Outputs 7 7

Getting Started

Thank you for purchasing the Rotel RA-1070 Stereo Integrated Amplifier. When used in a high-quality music audio system, it will provide years of musical enjoyment. The RA-1070 is a full featured, high performance preamplifier. All aspects of the design have been optimized to retain the full dynamic range and subtle nuances of your music. The RA-1070 has a highly regulated power supply incorporating a Rotel custom-designed toroidal power transformer and custom-made slit foil capacitors. This low impedance power supply has ample power reserves, which enables the RA-1070 to easily reproduce the most demanding audio signals. This type of design is more expensive to manufacture, but it is better for the music.

Specifications.. 11

Speaker Outputs and Speaker Selector Switch. 8 Speaker Selection Speaker Wire Selection Polarity and Phasing Speaker Connection 8 8
IR Inputs and Outputs.. 8 External Remote Input IR Output 8 8
The RA-1070 printed circuit boards (PCB) are designed with Symmetrical Circuit Traces. This insures that the precise timing of the music is maintained and faithfully recreated. The RA1070 circuitry uses metal film resistors and polystyrene or polypropylene capacitors in important signal paths. All aspects of this design have been examined with the final goal being faithful reproduction of music. The RA-1070 has a superb phono preamp stage. It is designed for use with popular moving magnet (MM) phono cartridges. This shows our commitment to phono sound quality and our interest in the recreation of fine music. The RA-1070 is straightforward in its installation and operation. If you have experience with other stereo systems, you shouldnt find anything perplexing. Simply plug in the associated components and enjoy.

Placement

Like all audio components that handle lowlevel signals, the RA-1070 can be affected by its environment. Do not stack the other components on top of the RA-1070. That will impede the ability of the amplifier to ventilate the heat it generates. Also, do not stack the RA-1070 on top of other components. This will minimize chance the other components will pick up hum or interference from the RA-1070. We recommend installing the system components in furniture designed to house audio components. Such furniture is designed to reduce or suppress vibration which can adversely affect sound quality. Ask your authorized Rotel dealer for advice about component furniture and proper installation of audio components.

Most of the RR-969 functions duplicate the front panel controls. In this manual the remote control functions are covered in the same section as the front panel control operation. Numbers indicate items on in gray boxes such as the front and rear panel control and connection illustrations. See Figure 1 on page 3. Letters indicate items on in gray boxes such as the RR-969 illustration. See Figure 2 on page 3.

Using the RR-969

To operate the RA-1070 with the remote, activate the AUDIO mode, if necessary, by. The AUDIO pressing the AUD button mode will remaine selected until another DEVICE button is pressed.

Cables

Be sure to keep the power cords, digital signal cables and regular audio signal cables in your installation away from each other. This will minimize the chance of the regular audio signal cables picking up noise or interference from the power cords or digital cables. Using only high quality, shielded cables will also help to prevent noise or interference from degrading the sound quality of your system. If you have any questions see your authorized Rotel dealer for advice about the best cable to use with your system
Controlling Other Components
To control other components with the RR-969, press the appropriate Device Selection button. See the RR-969 manual for more information.

A Few Precautions

Please read this manual carefully. It provides complete information on how to incorporate the RA-1070 into your system as well as general information that will help you get optimum sound performance. Please contact your authorized Rotel dealer for answers to any questions you might have. In addition, all of us at Rotel welcome your questions and comments. Save the RA-1070 shipping carton and all enclosed packing material for future use. Shipping or moving the RA-1070 in anything other than the original packing material may result in severe damage to your amplifier. Fill out and send in the owners registration card packed with the RA-1070. Also be sure to keep the original sales receipt. It is your best record of the date of purchase, which you will need in the event warranty service is ever required.

Remote Sensor

The Remote Sensor is located to the right of the Power button on the front panel. It picks up the infra-red signals from the remote control. Do not cover or block the sensor. It must be clear of obstructions or the remote control will not work properly. The operation of the Remote Sensor can also be affected if it is exposed to bright light, particularly sun light. In addition remote control functions may not work reliably if the batteries in the RR-969 are weak.

RR-969 Remote Control

The RA-1070 includes a full-function learning remote control that can operate up to nine other components, in addition to the RA-1070. A separate manual, included with the remote, gives detailed instrctions on programming and using the RR-969 to replace all of the remote controls in your system. To avoid duplication, we provide only basic information about using the RR-969 to operate the RA-1070.

Programming the RR-969

The RR-969 is pre-programmed to operate the RA-1070. Should the Audio mode of the RR-969 not operate the RA-1070, the programming may have been changed. To restore the original programming, press the on the remote with recessed Preload button the tip of a ball point pen.
NOTE: Pushing the PRELOAD button will erase all custom programming and learned commands, restoring the RR-969 to its factory settings.
English Phono Input and Ground Connection
Plug the cable from the turntable into the appropriate left and right phono inputs. If the turntable has a ground wire connect it to the screw terminal to the left of the Phono inputs. It will help prevent hum and noise.

AC Power and Control

AC Power Input
The RA-1070 uses a moderate amount of power. However there are two auxiliary power outlets on the back of the unit, which can be used to supply up to 200 watts of power for other components. Consequently, the RA-1070 should be plugged directly into a 2-pin polarized wall outlet. Avoid the use of extension cords. A heavy duty multi-tap power outlet strip may be used if it (and the wall outlet) is rated to handle the current demanded by the components connected to it.
Power Switch and Remote Power Button
The Power switch is located on the left side of the front panel. When it is pressed the RA-1070 is turned on and the front panel displays and indicators are illuminated. When the front panel Power button is in the on can be position, the RR-969 Power button used to put the RA-1070 into standby mode and return it to regular power mode. When the RA-1070 is in standby mode the front panel display is turned off and amplifer circuits go into low power mode.

Line Level Inputs

The CD, DVD/Video, Tuner, and Aux inputs of the RA-1070 are line level inputs. These are for connecting components such as CD players, Hi Fi or NICAM Stereo video cassette recorders, tuners , Laser Disc players or the analog output from a CD ROM drive. The Left and Right channels are clearly labeled and should be connected to the corresponding channels of the source component. The Left RCA connectors are white, the Right connectors are red. Use high quality RCA cables for connecting input source components to the RA-1070. Ask your authorized Rotel dealer for advice about cables.

NOTE: Do not connect the power cord for a power amplifier to the auxiliary power outlets on the RA-1070. Power amplifiers often draw more power than these outlets can provide. The auxiliary power outlets should be used only to power source componets, such as CD players or tuners.
Your RA-1070 is configured at the factory for the proper AC line voltage in the country where you purchased it (either 115 volts AC or 230 volts AC with a line frequency of either 50 Hz or 60 Hz). The AC line configuration is noted on a decal on the left side.
NOTE: The RA-1070 will be turned on and in the normal operating mode as soon as it is connected to the AC outlet. Be sure to set the Volume control to the minimum (full counterclockwise) position before connecting the power cord.

Auxiliary Power Outputs

(North American version only)
The RA-1070 has two switched outlets on the back panel. Power is available from these outlets when the RA-1070 is in regular power mode. Power to these outlets is turned off when the RA-1070 is in Standby mode. These outlets can provide up to a total of 200 watts. They are appropriate for supplying power to signal sources, such as CD players, tuners, or tape decks. They should not be used for power amplifiers. Connecting components that will draw more than 200 watts to these outputs could damage the Power switch in the RA-1070.

Recorder Connections

[See Figure 3.] The Tape 1 and Tape 2 inputs and outputs can be connected to any record/playback device that accepts standard line level analog input and output signals. Typically that will be a conventional tape recorder. When connecting a recorder to the RA-1070, remember that the outputs of the recorder must be connected to the tape inputs of the RA-1070. Similarly the tape outputs of the RA-1070 must be connected to the inputs of the recorder. As with other sources be sure to connect the Left and Right channels of each device to the proper channels on the associated components. Use high quality connecting cables to prevent loss of sound quality.

NOTE: Should you move your RA-1070 amplifier to another country, it is possible to reconfigure it for use on a different line voltage. Do not attempt to perform this conversion yourself. Opening the enclosure of the RA-1070 exposes you to dangerous voltages. Consult a qualified service person or the Rotel factory service department for information.
If you are going to be away from home for an extended period of time such as a monthlong vacation, it is a sensible precaution to unplug your amplifier (as well as other audio and video components) while you are away.

Input Signal Connections

[See Figure 3.] The RA-1070 has conventional RCA-type connectors for all inputs.
NOTE: To prevent loud noises that neither you nor your speakers will appreciate, make sure the system is turned off when you make any signal connections.

Preamp Outputs

The RA-1070 has two sets of preamp outputs. The signal from the source selected with the Listening Selector buttons is always available from these outputs. Typically these outputs are used to provide a signal to another integrated amplifier or power amplifier, which is used to drive remote speakers. Or they may be used to provide signals to a surround sound processor or other signal processing component.

Polarity and Phasing

The polarity the positive/negative orientation of the connections for every speaker and amplifier connection must be consistent so all the speakers will be in phase. If the polarity of one connection is reversed, bass output will be very weak and stereo imaging degraded. All wire is marked so you can identify the two conductors. There may be ribs or a stripe on the insulation of one conductor. The wire may have clear insulation with different color conductors (copper and silver). There may be polarity indications printed on the insulation. Identify the positive and negative conductors and be consistent with every speaker and amplifier connection.

IR Inputs and Outputs

External Remote Input
This 3.5 mm mini-jack (labeled EXT REM IN) receives command codes from an industrystandard infrared receivers (Xantech, etc.) located in the main listening room. This feature is useful when the unit is installed in a cabinet and the front-panel sensor is blocked. Consult your authorized Rotel dealer for information on external receivers and the proper wiring of a jack to fit the mini-jack receptacle.

Speaker Outputs and Speaker Selector Switch
[See Figure 4 for speaker connection illustration.] The RA-1070 has two sets of speaker outputs, and B. The speaker outlabeled A puts are controlled by the Speaker Selector on the front panel. switch

Speaker Connection

Turn off all the components in the system before connecting the speakers. The RA-1070 has color-coded binding post type speaker connectors on the back panel (except in European Community countries where their use is not permitted). These connectors accept bare wire, connector lugs, or dual banana type connectors. Route the wire from the RA-1070 to the speakers. Give yourself enough slack so you can move the components to allow access to the speaker connectors. If you are using dual banana plugs, connect them to the wires and then plug into the backs of the binding posts. The thumbscrews of the binding posts should be screwed in all the way (clockwise). If you are using terminal lugs, connect them to the wires. If you are attaching bare wires directly to the binding posts, separate the wire conductors and strip the insulation from the end of each conductor. Be careful not to cut into the wire strands. Unscrew (turn counterclockwise) the binding post thumbscrews. Place the connector lug or wire around the binding post shaft. Turn the thumbscrews clockwise to clamp the connector lug or wire firmly in place.
NOTE: The IR signals from the EXTERNAL REMOTE IN jack can be relayed to source components using external IR emitters or hardwired connections from the IR OUT jacks.

IR Output

The IR OUT 1 and 2 jacks send IR signals received at the EXTERNAL REM IN jack to an infrared emitter placed in front of a source component or to Rotel CD players, cassette decks, or tuners with a compatible rear panel IR connector. This output is used to allow IR signals to pass along IR signals from a remote control when the sensors on the source components are blocked by installation in a cabinet. See your authorized Rotel dealer for information on IR repeater systems.

Speaker Selection

If only one set of speakers will be used at any given time, the speakers may have an impedance as low as 4 ohms. If there are times when both the A and B speakers will be used, all the speakers should have an impedance of 8 ohms or more. Speaker impedance ratings are less than precise. In practice, very few loudspeakers will present any problems for the RA-1070. See your authorized Rotel dealer if you have any questions.

Speaker Wire Selection

Use insulated two-conductor stranded wire to connect the RA-1070 to the speakers. The size and quality of the wire can have an audible effect on the performance of the system. Standard speaker wire will work, but can result in lower output or diminished bass response, particularly over longer distances. In general, heavier wire will improve the sound. For best performance, you may want to consider special high-quality speaker cables. Your authorized Rotel dealer can help in the selection of cables for your system.
NOTE: The EXT REM IN jack located next to the these jacks is for use with an external IR sensor duplicating the front panel IR sensor and located in the primary zone.

12 Volt Trigger Outlet

Some audio components can be turned on automatically when they receive a 12V turn on signal. The 12V Trigger Outputs of the RA-1070 provide the required signal. Connect compatible components to the RA-1070 with a conventional 1/8 miniplug cable. When the RA-1070 is in Standby mode, the trigger signal is interupted, so the components controlled by it are turned off.
NOTE: Be sure there are no loose wire strands that could touch adjacent wires or connectors.

Computer I/O Connector

The RA-1070 can be operated from a personal computer running audio system control software from third-party developers. This control is accomplished by sending the operating codes normally sent by the RR-969 remote control over a hard-wired network connection from the computer. The COMPUTER I/O input provides the necessary connection on the back panel. It accepts standard RJ-45 8-pin modular plugs, such as those commonly used in 10-BaseT UTP Ethernet cabling. For additional information on the connections, software, and operating codes for computer control of the RA-1070, contact your authorized Rotel dealer.
Having a separate Recording and Listening selector adds a significant degree of flexibility in how you can use the RA-1070. For example by selecting CD with the Record Selector and selecting Tuner with the Listening Selector you can record a CD onto a tape while listening to the tuner. If you wish to duplicate (dub) a recording from one recorder to another, the source unit must be connected to Tape 1 in/outputs. Press the Tape 1 Recording Selector button. Connect the unit recording the signal to the Tape 2 in/outputs.
NOTE: Because the sensitivity of speakers and headphones can vary widely, always reduce the volume level before connecting or disconnecting headphones.

Remote Control Functions

Selecting Listening Input
To select listening sources press: Source Phono CD Tuner DVD/Video Aux 1 Aux 2 Tape 1 Tape 2 Button PH CD TUN V1 V4 V5 TAPE 1 TAPE 2

Contour Control

Instead of conventional tone controls, the RA-1070 has a front-panel Contour control which selects one of five available settings. Each setting provides a fixed frequency contour as follows: Off: the tone contour circuits are bypassed to ensure the purest possible sound.

Audio Controls

Volume Controls and
The front panel Volume control increases or decreases the volume in both channels at the same time. Turn it clockwise to increase the volume or counterclockwise to decrease the volume. On the RR-969 remote Volume , press the v to increase volume Button or w to decrease volume.
Selecting Recording Input
To select the Recording Input press the Zone , then press the button for the source button you want. Refer to the table in the previous paragraph. (Tape 2 cannot be selected as a Recording Input.) After you have selected a Recording Input the Source Selection buttons revert to the Listening Input selection function. To turn the Recording Selection off, press the. Zone button, then press the Shift button
L-1: moderate increase in bass frequencies (typically +3dB @ 100Hz). L-2: more increase in bass frequencies (typically +4dB @ 100Hz). H: moderate increase in high frequencies (+3dB @ 10kHz). LH: combination of L-2 bass and H high frequency increases.
Listening Selector Buttons and Display
Press one of the Listening Selector Buttons to select the input signal that goes to the main outputs and to the power amplifier or, more simply, which source is heard. The source selected is shown in the front panel FL Dis. play

Phones Output

The Phones output allows you to connect headphones for private listening. This output accommodates standard stereo phone (1/4) plugs. If your headphones have another type of plug, such as a 1/8 mini-plug, you will need an adapter plug. Contact your authorized Rotel dealer, to get the correct adapter plug. Plugging in a set of headphones does not cut off the signal to the outputs. Use the Speaker Selector to turn off the speakers. The setting of the Listening Selector controls which source is heard. Turn the front panel Listening Selector to the source you want to listen to. Or press the corresponding source button on the remote control.

Mute Button

Press the Mute button to temporarily reduce the volume of the system. Press the button again to return the volume to its original level.

Recording Selector Buttons and Display
Press one of the Recording Selector Buttons to select the input signal that goes to the record outputs. The source selected is shown in the front. When you are not repanel FL Display cording, press the Off button. This minimizes the chance of interference from other components in the system.

FL Display Control

Turning FL Display On/Off
To turn the front panel FL Display on or off, button on the RR-969. press the Display When the display is set to off, the Listening Selector Display and Recording Selector Display will light for 5 seconds when a new source is selected.

Protection Circuitry

The RA-1070 has both thermal and over-current protection circuitry that protects the amplifier against damage in the event of extreme or faulty operating conditions. The protection circuits are independent of the audio signal and have no impact on sonic performance. Instead, the protection circuits monitor the temperature of the output devices and shut down the amplifier if temperatures exceed safe limits. Most likely, you will never see this protection circuitry in action. However, should a faulty condition arise, the amplifier will stop playing and the LED indicator on the front panel will light up. If this happens, turn the amplifier off. Let it cool down for several minutes, and attempt to identify and correct the problem that caused the protection circuitry to engage. When you turn the amplifier back on, the protection circuit will automatically reset and the indicator LED should go out. In most cases, the protection circuitry activates because of a fault condition such as shorted speaker wires, or inadequate ventilation leading to an overheating condition. In very rare cases, highly reactive or extremely low impedance speaker loads could cause the protection circuit to engage. If the protection circuitry triggers repeatedly and you are unable to isolate and correct the faulty condition, contact your authorized Rotel dealer for assistance in troubleshooting.

Troubleshooting

Most difficulties in audio systems are the result of incorrect connections, or improper control settings. If you encounter problems, isolate the area of the difficulty, check the control settings, determine the cause of the fault and make the necessary changes. If you are unable to get sound from the RA-1070, refer to the suggestions for the following conditions:

Customizing FL Display

You can program the RA-1070 to display custom names, up to 5 characters long, in the Listening and Recording Selection Displays. For example, if the Aux 1 input was connected to a Digital Satelite Dish, you could program it to RA-1070 to display DSS when the Aux 1 input is selected. Example: 1 Select Aux 1 as the listening input so AUX 1 appears in the display. Press and hold button until the charthe Menu/OSD acters in the display change to blinking solid blocks. to scroll 2 Use the RR-969 / buttons through the character set. (See page 3 of the RR-969 manual for a listing of the character set.) When the character you want to confirm it is displayed, press Enter and go to the next character. 3 Repeat the previous step to select the remaining characters. After the last character is selected and confirmed the new name is saved automatically. Once the Listening input display is customized, the new name also appears when that input is selected as the Recording input. (The exception is the Tape 2 input since it cannot be selected as the recording source.) When an input that has a customized name is selected, the original input name is displayed for 2 seconds, before the customized name is displayed.

Power Indicator Is Not Lit
The Power Indicator should be lit whenever the RA-1070 is plugged into the wall power outlet. If it does not light, test the power outlet with another electrical device, such as a lamp. Be sure the power outlet being used is not controlled by a switch that has been turned off.

Fuse Replacement

If another electrical device works when plugged into the power outlet, but the Standby Indicator still will not light when the RA-1070 is plugged into the wall outlet, it indicates that the internal power fuse may have blown. If you believe this has happened, contact your authorized Rotel dealer to get the fuse replaced.

No Sound

Check the signal source to see if it is functioning properly. Make sure the cables from the signal source to the RA-1070 inputs are connected properly. Be sure the Listening Selector is set to the proper input. Check the wiring between the RA-1070 and the speakers.
Protection Indicator Is Lit
The front panel indicator lights when the RA-1070 protection circuits have shut off the amplifier. Typically, this occurs only when the ventilation openings are blocked, when there is faulty speaker wiring, or after a period of extreme use. Turn off the system and wait for the amp to cool. Then push the front panel power switch in and out to reset the protection devices. If the problem is not corrected or reoccurs, there is a problem with the system or the amplifier itself.
Clearing FL Display Customization
To clear all customized displays, turn the RA-1070 on. Then press the Listening Selector Phono button together with the Recording Selector Off button. This will return all displays to their original settings.

Specifications

Continuous Power Output (20-20 kHz, < 0.03%, 8 ohms) Total Harmonic Distortion (20Hz-20kHz) Intermodulation Distortion (60 Hz : 7 kHz, 4:1) Frequency Response Line level inputs Phono input Damping Factor (20-20,000 Hz, 8 ohms) Input Sensitivity / Impedance Line level inputs Phono input (MM) Input Overload Line level inputs Phono input (MM) Preamplifier Output Rated Voltage Signal to Noise Ratio (IHF A weighted) Line level inputs Phono input Power Requirements USA Version European Version Power Consumption Dimensions (W x H x D) Weight (net) All specifications are accurate at the time of printing. Rotel reserves the right to make improvements without notice. 100 watts/ch < 0.03% at rated power, 1/2 power or 1 watt < 0.05% at rated power, 1/2 power or 1 watt 4Hz 100kHz, 3dB 20Hz 20kHz. 0.5dB mV / 33 kOhms 1.2mV / 68 kOhms 5V 70 mV 1V 102 dB 70 dB 115 Volts, 60 Hz 230 Volts, 50 Hz 400 Watts 430 x 121 x 360 mm 1615/16 x 43/4 x 143/16 10.3 kg, 22.7 lbs.

RA 1070 / RC Byte waveform format
Baud Rate 2400 Parity n Valid data bits Stop bit value Handshaking none Data type string
1. RC1090 / RA1070 -> PC Display data
Start Count ID Type 0xfe xx 0x04 0x20 Data0 - Data10 (11 byte) display data (ascii characters) Chk xx
2. PC -> RC1090 / RA1070
Start Count ID Type 0xfe 0x03 0x04 0x10 Key xx Chk xx
key: 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0a 0x0b 0x0c 0x0d 0x0e 0x0f
Power On/Off Toggle Power Off Power On Listen Phono Listen CD Listen Tuner Listen Video Listen Aux1 Listen Aux2 Listen Tape1 Listen Tape2 Record Phono Record CD Record Tuner Record Video Record Aux1
key: 0x10 0x11 0x12 0x13 0x14 0x15 0x16 0x17 0x18 0x19 0x1a 0x1b 0x1c 0x1d 0x1e 0x1f 0x20 0x21
Record Aux2 Record Tape1 Record Tape2 Volume Up Volume Down Mute On/Off Re-label Character Select OK (rmc 0x1e) Re-label Character Search Up (rmc 0x1b) Re-label Character Search Down (rmc 0x1c) Re-label On/Off (rmc 0x42) Record Function Select (rmc 0x1a) Display Off/On Reserved Reserved Reserved Reserved Reserved Reserved