regarding common operating errors before concluding that the unit is faulty.
FREQUENCY STEP switch (General Model only) Because the interstation frequency spacing differs in different areas, set the FREQUENCY STEP switch (located at the rear) according to the frequency spacing in your area. Before setting this switch, disconnect the AC power plug of this unit from the AC outlet.
9. When not planning to use this unit for long periods of time
(ie., vacation, etc.), disconnect the AC power plug from the wall outlet.
WARNING Do not change the IMPEDANCE SELECTOR switch setting while the power to this unit is on, otherwise this unit may be damaged. IF THIS UNIT FAILS TO TURN ON WHEN THE POWER SWITCH IS PRESSED The IMPEDANCE SELECTOR switch may not be set to either end closely. If so, set the switch to either end closely. IMPEDANCE SELECTOR
10. To prevent lightning damage, disconnect the AC power
plug and disconnect the antenna cable when there is an electrical storm.
11. Grounding or polarization Precautions should be taken
so that the grounding or polarization of an appliance is not defeated.
IMPEDANCE SELECTOR VOLTAGE SELECTOR

12. AC outlet

Do not connect audio equipment to the AC outlet on the rear panel if that equipment requires more power than the outlet is rated to provide.

SET BEFORE POWER ON

REAR SINGLE:6MIN. /SPEAKER REAR :3MIN. /SPEAKER CENTER :6MIN. /SPEAKER MAIN A OR B:4MIN. /SPEAKER A B:8MIN. /SPEAKER REAR SINGLE:8MIN. /SPEAKER REAR :4MIN. /SPEAKER CENTER :8MIN. /SPEAKER MAIN A OR B:8MIN. /SPEAKER A B:I6MIN./SPEAKER
13. Voltage Selector (General Model only)
The voltage selector on the rear panel of this unit must be set for your local main voltage BEFORE plugging into the AC main supply. Voltages are 110/120/220/240 V AC, 50/60 Hz.

I00W MAX. TOTAL SWITCHED

AC OUTLETS
(General model) This unit is designed for home use only. Do not use this unit for business purposes.

PROFILE OF THIS UNIT

You are the proud owner of a Yamaha AV receiver an extremely sophisticated audio component. The Digital Sound Field Processor (DSP) built into this unit takes advantage of Yamahas undisputed leadership in the field of digital audio processing to bring you a whole new world of listening experiences. Follow the instructions in this manual carefully when setting up your system, and this unit will sonically transform your room into a totally new listening environment. In addition, you get incredible realism from sources encoded with Dolby Surround using the built-in Dolby Pro Logic Surround Decoder. This unit also has Karaoke functions. They are useful for enjoying Karaoke by using not only multisound sources for Karaoke, but also normal music sources with vocals. Furthermore, sound-surrounding effects of the DSP expand your Karaoke enjoyment, in which you will be absorbed in your singing. Please read this operation manual carefully and store it in a safe place for later reference.

Digital Sound Field Processing (DSP)
What is it that makes live music so good? Todays advanced sound reproduction technology lets you get extremely close to the sound of a live performance, but chances are youll still notice something missing: the acoustic environment of the live concert hall. Extensive research into the exact nature of the sonic reflections that create the ambience of a large hall has made it possible for Yamaha engineers to develop their original Digital Sound Field Processing Technology to re-create the acoustic environment of a large concert hall in a home audio listening room. Furthermore, our technicians, armed with sophisticated measuring equipment, have even made it possible to capture the acoustics of a variety of venues such as an actual concert hall, live house, etc. to re-create various types of actual live performance environments for home audio use. The DSP programs on this unit are made on the basis of this technology.

Dolby Pro Logic Surround

This unit employs a Dolby Pro Logic Surround decoder similar to professional Dolby Stereo decoders used in many movie theaters. By using the Dolby Pro Logic Surround decoder, you can experience the dramatic realism and impact of Dolby Surround movie theater sound in your own home. Dolby Pro Logic employs a four channel five speaker system. The Pro Logic Surround system divides the input signal into four levels: the left and right main channels, the center channel (used for dialog), and the rear surround sound channels (used for sound effects, background noise, and other ambient noises). The center channel allows listeners seated in even less-than-ideal positions to hear the dialog originating from the action on the screen while experiencing good stereo imaging. Dolby Surround is encoded on the sound track of pre-recorded video tapes, laser discs, and some TV/cable broadcasts. When you play a source encoded with Dolby Surround on this unit, the Dolby Pro Logic Surround decoder decodes the signal and distributes the surround-sound effects. This Dolby Pro Logic Surround Decoder employs a digital signal processing system. This system improves the stability of sound at each channel and minimizes crosstalk between channels, so that positioning of sounds around the room is more accurate compared with conventional analog signal processing systems. In addition, this unit features a built-in automatic input balance control. This always assures you the best performance without manual adjustment. Manufactured under license from Dolby Laboratories Licensing Corporation. Dolby, the double-D symbol and Pro Logic are trademarks of Dolby Laboratories Licensing Corporation.

Note As this unit is equipped with a monaural amplifier for the rear channel, sounds output from the rear speakers are in monaural. So, you may use one rear speaker only instead of using two rear speakers. However, the use of two rear speakers is recommended when there are more than one listener in the listening room. When using one rear speaker, place it right behind your listening position.

SPEAKER PLACEMENT

The recommended speaker configuration, the 5-speaker configuration, will require two speaker pairs: main speakers (your normal stereo speakers), and rear speakers, plus a center speaker. When you place these speakers, refer to the following. Main: TV set Rear R In normal position. (The position of your present stereo speaker system.) Rear: Behind your listening position, facing slightly inward. Nearly 1.8 m (approx. six feet) up from the floor. Center: Precisely between the main speakers. (To avoid interference with TV sets, use a magnetically shielded speaker.)
Front R Main R Center Main L Front L

CONNECTIONS

Never plug in this unit and other components until all connections are completed.
CONNECTIONS WITH OTHER COMPONENTS
When making connections between this unit and other components, be sure all connections are made correctly, that is to say L (left) to L, R (right) to R, + to + and to. Also, refer to the owners manual for each component to be connected to this unit. * If you have YAMAHA components numbered as 1, 2, 3, etc. on the rear panel, connections can be made easily by making sure to connect the output (or input) terminals of each component to the same-numbered terminals of this unit.
Turntable OUTPUT GND Monitor TV
Video cassette recorder AUDIO OUT VIDEO OUT AUDIO IN VIDEO IN

75 UNBAL.

VIDEO IN

(General model)

IMPEDANCE SELECTOR

VOLTAGE SELECTOR

MONITOR OUT

VIDEO SIGNAL

VIDEO IN VCR OUT

FM ANT

GND AM ANT
50kHz /9kHz I00kHz /I0kHz
TAPE TAPE REC PB ( MD ) OUT

IN VCR OUT

AUDIO SIGNAL

FREQUENCY STEP

FM /AM
To AC outlet AUDIO OUT VIDEO OUT LINE OUT OUTPUT CD player LINE IN
Tape deck, MD recorder, etc.

LD player etc.

: See page 10.

CONNECTING SPEAKERS

Rear speaker

Center speaker

REAR SINGLE:6MIN. /SPEAKER REAR :3MIN. /SPEAKER CENTER :6MIN. /SPEAKER MAIN A OR B:4MIN. /SPEAKER A B:8MIN. /SPEAKER

REAR SINGLE

REAR SINGLE:8MIN. /SPEAKER REAR :4MIN. /SPEAKER CENTER :8MIN. /SPEAKER MAIN A OR B:8MIN. /SPEAKER A B:I6MIN./SPEAKER

CENTER

Main speakers B
CAUTION SEE INSTRUCTION MANUAL FOR CORRECT SETTING.

SPEAKERS

Main speakers A
Note Use speakers with the specified impedance shown on the rear of this unit.

Note on rear speaker connection: Only one rear speaker can also be used in place of two rear speakers. For connecting one rear speaker, follow the method shown below. Rear speaker
Note on main speaker connections: One or two speaker systems can be connected to this unit. If you use only one speaker system, connect it to either the SPEAKERS A or B terminals.

How to Connect:

Connect the SPEAKERS terminals to your speakers with wire of the proper gauge, cut as short as possible. If the connections are faulty, no sound will be heard from the speakers. Make sure that the polarity of the speaker wires is correct, that is the + and markings are observed. If these wires are reversed, the sound will be unnatural and lack bass. Caution Do not let the bare speaker wires touch each other and do not let them touch any metal part of this unit. This could damage this unit and/or speakers. For connecting to the MAIN SPEAKERS terminals Red: positive (+) Black: negative () For connecting to the REAR and CENTER SPEAKERS terminals Red: positive (+) Black: negative ()
Unscrew the knob. Insert the bare wire.
[Remove approx. 5mm (1/4) insulation from the speaker wires.] Tighten the knob and secure the wire.

Press up and hold the

Insert the bare wire.
[Remove approx. 5mm (1/4) insulation from the speaker wires.] Release the tab and secure the wire.
Banana Plug connections are also possible (except Singapore model). Simply insert the Banana Plug connector into the corresponding terminal.
IMPEDANCE SELECTOR switch
Be sure to switch this only when the power of this unit is turned off. Select the position whose requirements your speaker system meets. (Upper position) Rear: If you use one rear speaker, the impedance of the speaker must be 6 or higher. If you use two rear speakers, the impedance of each speaker must be 3 or higher.
Center: The impedance of the center speaker must be 6 or higher. Main: If you use one pair of main speakers, the impedance of each speaker must be 4 or higher. If you use two pairs of main speakers, the impedance of each speaker must be 8 or higher.

PRO LOGIC program.

3 STEREO program.

For Control of This Unit

8 EFFECT ON/OFF key
)/+ ( ) keys When the built-in digital sound field processor (DSP) (including the Dolby Pro Logic Surround decoder) is on, pressing this key cancel it and turns this unit into the normal 2-channel stereo mode. If this key is pressed when a normal DSP program ( PRO LOGIC, 3 STEREO, LIVE HOUSE or HALL) is selected, EFFECT OFF lights up on the display, however, if pressed when a DSP program for Karaoke (BALLAD, POPS, JAZZ or ROCK) is selected, E. OFF appears on the display. Pressing this key once more turns the DSP on and restores the program which was selected the last time.
1 DELAY/KEY and TIME/KEY (
Adjust the delay time (DELAY) and key level of the currently playing tune (KEY). Select the item which you want to adjust by pressing the DELAY/KEY key and adjust its time or level by pressing the TIME/KEY ( )/+ ( ) key. * The key level cannot be changed when a normal DSP program ( PRO LOGIC, 3 STEREO, LIVE HOUSE or HALL) is selected.
2 Tuner keys Controls tuner. +: Selects higher preset station number. : Selects lower preset station number. A/B/C/D/E: Selects the group (A E) of preset station numbers. 14

9 TEST key

Used for speaker balance adjustment. (For details, refer to page 1718.)
For Other Component Control
Identify the remote control transmitter keys with your components keys. If these keys are identical, their functions will be the same. On each key function, refer to the corresponding instruction on your components manual.

2 CD player keys

Controls compact disc player. * DISC is applicable only to compact disc changer.
1 Tape deck keys Controls tape deck. * DIR A, B and A/B are applicable only to double cassette tape deck. * For a single cassette deck with automatic reverse function, pressing DIR A will reverse the direction of tape running.
Notes about the remote control transmitter
Battery installation Remote control transmitter operation range

Remote control sensor

Within approximately 6 m (19.7 feet)

Battery replacement

If you find that the remote control transmitter must be used closer to the main unit, the batteries are weak. Replace both batteries with new ones. Notes q Use only AA, R6, UM-3 batteries for replacement. q Be sure the polarities are correct. (See the illustration inside the battery compartment.) q Remove the batteries if the remote control transmitter will not be used for an extended period of time. q If batteries leak, dispose of them immediately. Avoid touching the leaked material or letting it come in contact with clothing, etc. Clean the battery compartment thoroughly before installing new batteries.

B VOCAL AID indicator

Lights up by pressing the VOCAL AID button on the front panel. In this mode, you can select one of three audio output modes according as you prefer. If you select the VOCAL CUT mode, medium frequencies (vocals, etc.) of the playing source sound are attenuated only when there is an input from the microphone(s). To extinguish this indicator, press the VOCAL AID button once or more.
SPEAKER BALANCE ADJUSTMENT
This procedure lets you adjust the sound output level balance between the main, center, and rear speakers using the built-in test tone generator. When this adjustment is performed, the sound output level heard at the listening position will be the same from each speaker. This is important for the best performance of the digital sound field processor and the Dolby Pro Logic Surround decoder.
PRO LOGIC 3 STEREO LIVE HOUSE HALL
SUR/KARAOKE EFFECT BALLAD POPS CENTER MODE JAZZ ROCK

MIC 1 MIC 2 LEVEL

MIN MAX MIN MAX

POWER SLEEP

Select the center channel output mode suitable for your speaker configuration. (Refer to SPEAKER CONFIGURATION on page 6.)

Set to the position.

NORMAL WIDE

Turn the power on.

PHANTOM
On the feature of each mode, refer to the Note shown below. Select the main speakers to be used.
Note In step 6, when you select a center channel output mode, note the following. For 5 speaker configuration) NORMAL: Select this mode when you use a center speaker that is smaller than the main speakers. In this mode, the bass tone will be output from the main speakers. WIDE: Select this mode when you use the center speaker approximately same sized as the main speakers. For 4 speaker configuration) PHANTOM: Select this mode when you do not use the center speaker. The center sound will be output from the left and right main speakers. * When the DOLBY 3 STEREO program is used, the PHANTOM mode cannot be selected.
* If you use two main speaker systems, press both the A and B switches.

Set to the 0 position.

CONTINUED

BASS 0 l l 3 4

Turn up the volume.
Adjust the sound output levels of the center speaker and the rear speakers so that they become almost as same as that of the main speakers.
You will hear a test tone (like pink noise) from the left main speaker, then the center speaker, then the right main speaker, and then the rear speakers, for about two seconds each. The display changes as shown below.

Play the source and then turn the VOLUME control up to confirm the input source. (For detailed information on the tuning operations, refer to the page 22.)
Notes The settings of DSP and the VOLUME, BASS, TREBLE and BALANCE controls have no effect on the material being recorded. You can also record your vocal input from the microphone(s) connected to this unit along with the source. In addition, an effect sound of DSP program for Karaoke and effects of Karaoke functions can also be recorded with the vocal and the source. (See page 31 for details.)
Selecting the SPEAKER system
Because one or two speaker systems (as main speakers) can be connected to this unit, the SPEAKERS switches allow you to select speaker system A or B, or both at once.
Adjusting the BASS and TREBLE controls

BASS 0 l TREBLE 0 l l 4

: Turn this clockwise to increase (or counterclockwise to decrease) the low frequency response.
Adjusting the BALANCE control
Adjust the balance of the output volume to the left and right speakers to compensate for sound imbalance caused by speaker location or listening room conditions.
TREBLE : Turn this clockwise to increase (or counterclockwise to decrease) the high frequency response. Note These controls are effective only for the sound from the main speakers.
Note This control is effective only for the sound from the main speakers.

TUNING OPERATIONS

Normally, if station signals are strong and there is no interference, quick automatic-search tuning (AUTOMATIC TUNING) is possible. However, if signals of the station you want to select are weak, you must tune to it manually (MANUAL TUNING).

AUTOMATIC TUNING

Select TUNER as the input source.

MANUAL TUNING

Select the reception band (FM or AM) confirming it on the display.

AUTO/MANL MONO

Turn AUTO off.
Tune to a desired station manually.
To tune to a higher frequency, press the right side once. To tune to a lower frequency, press the left side once. * If the station where tuning search stops is not the desired one, press again. * If the tuning search does not stop at the desired station (because the signals of the station are weak), change to the MANUAL TUNING method.

* To continue tuning search, press and hold the button. Note If you tune to an FM station manually, it is received in monaural mode automatically to increase the signal quality.

PRESET TUNING

MANUAL PRESET TUNING
This unit can store station frequencies selected by tuning operation. With this function, you can recall any desired station by only selecting the preset station number where it is stored. Up to 40 stations (8 stations x 5 groups) can be stored.
PRO LOGIC 3 STEREO SUR/KARAOKE EFFECT BALLAD POPS

2, 1 4, 2

To store stations
To recall a preset station
Tune to a desired station. (Refer to the previous page for tuning procedure.)
Select the group of preset stations.
Select a desired group (A E) of preset stations confirming it on the display.
Select the preset station number.

MANL/AUTO FM

Flashes on and off for about 5 seconds.
Select a preset station number where you want to program the station before MEMORY goes off from the display.
Notes A new setting can be programmed in place of the former one. For presets, the setting of the reception mode (stereo or monaural) is stored along with the station frequency.
Memory back-up The memory back-up circuit prevents the programmed data from being lost even if the POWER switch is set off or the power plug is disconnected from the AC outlet or the power is cut due to temporary power failure. If, however, the power is cut for more than one week, the memory may be erased. If so, it can be re-programmed by simply following the PRESET TUNING steps.

CONCERT HALL

Shows the displayed station has been programmed to A1. * In the same way, program other stations to A2, A3. A8. * You can program more stations to preset station numbers on other groups in the same way by selecting other groups in step 2.

AUTOMATIC PRESET TUNING

You can also make use of an automatic preset tuning function for FM stations only. By this function, this unit performs automatic tuning and stores FM stations with strong signals sequentially. Up to 40 stations are stored automatically in the same way as in the manual preset tuning method on page 23.

When the automatic preset tuning is finished
The display shows the frequency of the last preset station. Check the contents and the number of preset stations by following the procedure of the section To recall a preset station on page 23.
Simply follow the procedure of the section To recall a preset station on page 23. Notes q You can replace a preset station by another FM or AM station manually by simply following the procedure of the section To store stations on page 23. q If the number of received stations is not enough to be stored up to E8, the search is finished automatically after searching all frequencies. q With this function, only FM stations with sufficient signal strength are stored automatically. If the station you want to program is weak in signal strength, tune in to it with the MANUAL TUNING method (in monaural) and program it by following the procedure of the section To store stations on page 23.
Press and hold for about 3 seconds.

Flashes.

To tune to higher frequencies, press right side once. To tune to lower frequencies, press left side once. * If the TUNING button is not pressed, in a while, the automatic preset tuning begins automatically toward higher frequencies. The automatic preset tuning begins from the frequency currently displayed. Received stations are programmed to A1, A2. A8 sequentially. * If more than 8 stations are received, they are also programmed to the preset station numbers on other groups (B, C, D and E) in that order.
If you want to store the first station received by the automatic preset tuning to a desired preset station number.
If, for example, you want to store the first received station to C5, select C5 by using the A/B/C/D/E button and the preset station number selector buttons after pressing the MEMORY button in step 2. Then press the TUNING button. The first received station is stored to C5, and next stations to C6, C7. sequentially. If stations are stored up to E8, the automatic preset tuning is finished automatically.
EXCHANGING PRESET STATIONS
You can exchange the places of two preset stations with each other as shown below.
Example) If you want to shift the preset station on E1 to A5, and vice versa.
Recall the preset station on E1 (by following the method of To recall a preset station on page 23).
Next, recall the preset station on A5 by following the same method with step 1.
Shows the exchange of stations is completed. Flashes.
USING DIGITAL SOUND FIELD PROCESSOR (DSP)
This unit incorporates a sophisticated, multi-program digital sound field processor. The processor allows you to electronically expand and change the shape of the audio sound field from both audio and video sources, creating a theater-like experience in your listening room. You can create an excellent audio sound field by selecting a suitable sound field program (this will, of course, depend on what you will be listening to), and adding desired adjustments. In addition, this unit incorporates a Dolby Pro Logic Surround decoder for multi-channel sound reproduction of sources encoded with Dolby Surround. The operation of the Dolby Pro Logic Surround decoder can be controlled by selecting a corresponding DSP program.

Brief Overview of Digital Sound Field Programs
The following list gives you a brief description of the sound fields produced by each of the DSP programs. Keep in mind that most of these are precise digital recreations of actual acoustic environments. The data for these sound fields was recorded at actual locations using sophisticated sound field measurement equipment.
FEATURE This program is used for playback of sources encoded with Dolby Surround. The application of a sophisticated digital signal processing system reduces crosstalk and directs or steers the sound source more smoothly and precisely, as compared to conventional types. This program is effective not only for playback of sources encoded with Dolby Surround, but also for sources not with Dolby Surround or TV programs with 2-channel stereo sound. With this program, 2channel stereo sound is converted into 3-channels (left main, center and right main), so the dialogs are emphasized on the center position by the use of the center speaker. As no sound is output from the rear speakers, this program is also effective in a simple Audio/Video system without rear speakers. This program simulates the acoustic environment of a live house. An energetic sound field is created with relatively clear reflections by the wall. In this program, the center will appear to be deep behind the main speakers, creating an expansive large hall ambience. Vocals move your heart with deep and clear reverberations. This program is suitable for slow ballads, etc. Vocals are emphasized and whole sound is clear. This program is suitable for pops. This is a small, cozy jazz club with a low ceiling. The sound is very close and intimate. This program is ideally suited for rock music. You will experience a very dynamic or lively sound field.
For normal DSP-surround effect

HALL BALLAD

For Karaoke

POPS JAZZ ROCK

To play a source with the digital sound field processor
PRO LOGIC SUR/KARAOKE EFFECT BALLAD 3 STEREO POPS
Follow steps shown in BASIC OPERATIONS on page 19. Select the desired program that is suitable for the source.

To operate on the remote control transmitter:
Press once or more so that KEY appears on the display.
To operate on the front panel:
By continuously pressing the + or side of the TIME/KEY button, the value changes continuously.

(Left side) :

Whenever this side is pressed, key of the tune becomes lower in 6 steps. (Right side) : Whenever this side is pressed, key of the tune becomes higher in 6 steps.
Adjustable Notes The key level you have adjusted is automatically reset to 0 by the following operations. q Changing the selected input source to another by pressing an input selector button. q Turning the power to this unit off by pressing the POWER switch.
Recording your vocal mixed with the source onto a tape (adding effects of a selected DSP program for Karaoke and other Karaoke functions)
Only when a DSP program for Karaoke (BALLAD, POPS, JAZZ or ROCK) is selected or the DSP is turned off (so that E. OFF appears on the display), you can record your vocal input from the microphone(s) connected to this unit along with the source onto a tape (or MD) by using the tape deck, VCR, etc. connected to the TAPE (MD) REC OUT and/or VCR OUT terminals on the rear of this unit. In addition, an effect sound of the selected DSP program for Karaoke and effects of Karaoke functions (VOCAL AID, ONE TOUCH KARAOKE, MIC LEVEL, ECHO and/or KEY CONTROL) can also be recorded with the vocal and the source. To record:
Confirm that TAPE MON is not illuminated on the display. If TAPE MON is illuminated, extinguish it by pressing the TAPE (MD) MONITOR button on the front panel. If TAPE MON is illuminated, your vocal, effect sound of the selected DSP program for Karaoke and effects of Karaoke functions cannot be recorded. Play the source and then turn the VOLUME control up to confirm the input source. Begin recording on the tape deck (or MD recorder etc.) or VCR connected to this unit. Begin singing Karaoke.
Select the source to be recorded by pressing the corresponding input selector button. Prepare to sing Karaoke by using microphone(s). If you want to record an effect sound of DSP program for Karaoke together, select the corresponding program. If you want to record effects of Karaoke functions (VOCAL AID, ONE TOUCH KARAOKE, MIC LEVEL, ECHO and/or KEY CONTROL) together, turn the corresponding functions on or make adjustments on them.
Notes An effect sound of the selected DSP program output from the main speakers can be recorded along with your vocal, however, an effect sound output from the rear speakers cannot be recorded. q If VCR is selected as the input source, recording cannot be made by using the VCR etc. connected to the VCR OUT terminals on the rear of this unit.

SETTING THE SLEEP TIMER

If you use the SLEEP timer of this unit, you can make this unit turn off automatically. When you are going to sleep while enjoying a broadcast or other desired input source, this timer function is helpful. Notes q The SLEEP timer can be controlled only with the remote control transmitter. q The components on which the SLEEP timer is effective are the sources connected to the SWITCHED AC OUTLETS on the rear panel of this unit.

To set the SLEEP time

To cancel the selected SLEEP time
Press once or more to select the desired SLEEP time.
Press once or more so that SLEEP OFF appears on the display. (It will soon disappear and the SLEEP indicator will go off from the display.) Note The SLEEP timer setting can also be canceled by turning off the power with the POWER switch or disconnecting the power plug of this unit from the AC outlet.
Indicates the SLEEP time.
Lights up. Whenever the SLEEP key is pressed, the SLEEP time will change as follows. (Minutes)
The SLEEP timer is off (OFF). (The state before the SLEEP key is pressed.) After a while, the display returns to the indication before the SLEEP timer is set.
The unit will be turned off automatically at the selected SLEEP time.

TROUBLESHOOTING

If the unit fails to operate normally, check the following points to determine whether the fault can be corrected by the simple measures suggested. If it cannot be corrected, or if the fault is not listed in the SYMPTOM column, disconnect the power cord and contact your authorized YAMAHA dealer or service center for help.
SYMPTOM The unit fails to turn on when the POWER switch is pressed, or turns off suddenly soon after the power is turned on. CAUSE Power cord is not plugged in or is not completely inserted. The IMPEDANCE SELECTOR switch on the rear panel is not set to the upper or the lower end exactly. There is an influence of strong external noise (lightning, excessive static electricity, etc.) or a misoperation on this unit while using this unit. Incorrect output cord connections. Appropriate input source is not selected. The SPEAKERS switches are not set properly. Speaker connections are not secure. The sound suddenly goes off. The protection circuit has been activated because of short circuit etc. The SLEEP timer has functioned. General Only one side speaker outputs the sound. Incorrect setting of the BALANCE control. Incorrect cord connections. Sound hums. Incorrect cord connections. No connection from the turntable to the GND terminal. The volume level is low while playing a record. The volume level cannot be increased, or sound is distorted. No sound from the rear speakers. The record is being played on a turntable with an MC cartridge. The power to the component connected to the REC OUT terminals of this unit is off. The sound output level to the rear speakers is set to minimum. Incorrect sound field program selection. No sound from the center speaker. The sound output level to the center speaker is set to minimum. The center channel mode is in PHANTOM mode. Incorrect sound field program selection. The sound is degraded when listening with the headphones connected to the compact disc player or cassette deck that are connected with this unit. FM stereo reception is noisy. The power to this unit is off. REMEDY Firmly plug in the power cord. Set the switch to the upper or the lower end exactly.

Printed in Malaysia

VY88670