Aiwa AV-D25 User Manual
For assistance and information
call toll free
(United States and Puerto Rico)
“CAUTION:TO REDUCE THE RISK OF
DO NOT REMOVE COVER (OR BACK). NO
For your convenience, record the model number and serial number (you will find them on the rear of your unit) in the space provided below. Please refer to them when you contact your Aiwa dealer in case of difficulty.
Serial No. (Lot No.)
Read the Operating Instructions carefully and completely before operating the unit. Be sure to keep the Operating Instructions for future reference. All warnings and cautions in the Operating Instructions and on the unit should be strictly followed, as well as the safety suggestions below.
1Water and moisture — Do not use this unit near water, such as near a bathtub, washbowl, swimming pool, or the like.
2Heat — Do not use this unit near heat sources, including heating vents, stoves, or other appliances that generate heat. It also should not be placed in temperatures less than 5°C (41”F) or higher than 35°C (95”F).
3Mounting surface — Place the unit on a flat, even surface.
4Ventilation — The unit should be situated with adequate space around it so that proper heat ventilation is assured. Allow 10 cm (4 in.) clearance from the rear and the top of the unit, and 5 cm (2 in.) from each side.
-Do not place the unit on a bed, rug, or similar surface that may block the ventilation openings.
-Do not install the unit in a bookcase, cabinet, or airtight rack where ventilation may be impeded.
5Objects and liquid entry
6Carts and stands — When placed or mounted on a stand or cart, the unit should be moved with care.
Quick stops, excessive force, and
uneven surfaces may cause the unit or m A~- 3 cart to overturn or fall.
7Wall or ceiling mounting
1Power sources — Connect this unit only to power sources specified in the Operating Instructions, and as marked on the unit.
2Polarization — As a safety feature, some units are equipped with polarized AC power plugs which can only be inserted one way into a power outlet. If it is difficult or impossible to insert the AC power plug into an outlet, turn the plug over and try again. If it is not still inserted easily into the outlet, please call a qualified service technician to service or replace the outlet. To avoid defeating the safety feature of the polarized plug, do not force it into a power outlet.
3AC power cord
-When disconnecting the AC power cord, pull it out by the AC power plug. Do not pull the cord itself.
-Never handle the AC power plug with wet hands, as this could result in fire or shock.
-Power cords should be firmly secured to avoid being severely bent, pinched, or walked upon. Pay particular attention to the cord from the unit to the power socket.
-Avoid overloading AC power plugs and extension cords beyond their capacity, as this could result in fire or shock.
4Extension cord — To help prevent electric shock, do not
use a polarized AC power plug with an extension cord, receptacle, or other outlet unless the polarized plug can be completely inserted to prevent exposure of the blades of the plug.
5When not in use — Unplug the AC power cord from the AC power outlet if the unit will not be used for several months or more. When the cord is plugged in, a small amount of current continues to flow to the unit, even when the power is turned off.
1Power lines — When connecting an outdoor antenna, make sure it is located away from power lines.
2Outdoor antenna grounding — Be sure the antenna system is properly grounded to provide protection against unexpected voltage surges or static electricity
Antenna Grounding According to the National Electrical Code
(NEC ART 250 PART H)
Clean the unit only as recommended in the Operating Instructions.
Damaue Reauirinq Service
Have the unit serviced by a qualified service technician if:
-The AC power cord or plug has been damaged
-Foreign objects or liquid have gotten inside the unit
-The unit has been exposed to rain or water
-The unit does not seem to operate normally
-The unit exhibits a marked change in performance
-The unit has been dropped, or the cabinet has been damaged DO NOT ATTEMPT TO SERVICE THE UNIT YOURSELF.
Check your unit and accessories
TABLE OF CONTENTS
BEFORE OPERATION ........................................................
CUSTOM AUDIO ADJUSTMENT .......................................
ELECTRONIC GRAPHIC EQUALIZER ..............................
DSP SURROUND ................................................................
OF AUDIO/VIDEO SOURCE
AN AUDIO SOURCE .................................
PRESETTING STATIONS .......................
DOLBY PRO LOGIC ...................................
SPEAKER LEVEL BALANCE ....................
SETTING THE CLOCK ......................................................
SETTING THE SLEEP TIMER ..........................................
CARE AND MAINTENANCE ............................................
TROUBLESHOOTING GUIDE ..........................................
PARTS INDEX ...................................................................
Before connecting the AC cord
The rated voltage of your unit shown on the rear panel is 120 V AC. Check that the rated voltage matches your local voltage.
Connect the speakers, antennas, and all other external equipment first. Then connect the AC cord at the end.
*I Be sure to connect the VIDEO OUT terminal of a DVD player directly to aTV set, not through this unit. Otherwise, the picture noise may appear when playing the DVDS copy protected.
*2 Input sound through the 5.1 INPUT terminals cannot be recorded. When recording the sound from the DVD player, connect the AUDIO OUT (DOWN MIXING) terminals of the DVD player to the VIDEO l/DVD/MD AUDIO IN terminals of the unit.
*3When connecting a monaural video, use a
DVD or Video l/MD player*a
Jacks and plugs of the connecting cord are
Red jacks and plugs : For the right channel of audio signals White jacks and plugs: For the left channel of audio signals Yellow jacks and plugs: For video signals
Insert the plugs fully into the jacks. Loose connections may produce a humming sound or other noise interference.
. . . .
to VIDEO OUT, to AIJDIO C)t JT
I I I ~’-
to CENTER OUT(DVD)
vmeu L ur
LDICable TV*3 1/ to VIDEO OUT JH
~ and@ in the illustration correspond to the following details.
CONNECTING SPEAKERS @)
Connect front speakers (system A and/or B), a center speaker, surround speakers andsubwoofer tothecorresponding speaker terminalson the unit:
-the front speaker cords to the FRONT SPEAKERS terminals
-the center speaker cord to the CENTER SPEAKER terminals
-the surround speaker cords to the SURROUND SPEAKERS terminals.
-for more powerful bass, the sub woofer (with a
For all speakers, use speakers of 8 ohms or more.
Connecting + to +, – to - terminals
To get the proper sound effect, the speaker terminals on the unit and the speaker should be connected with proper polarity; the+ terminal on the unit should be connected to the + terminal on the speaker (and - to
●Be sure to connect the speaker cords correctly as shown in the illustration on the right column. Improper connections can cause shorl circuits in the SPEAKER(S) terminals.
●Do not leave objects generating magnetism near the speakers.
I @Center speaker
Lift up the terminal flap, insert the speaker cord lead into the terminal slot, then close the flap. Check that the cord is connected securely.
POSITIONING THE SPEAKERS
Position the speakers to make the most of the Dolby Digital Surround (5. 1 CH), Dolby Pro Logic or DSP effect.
Position in the center of the two front speakers. In addition, position on or below the TV set, if connecting a TV set to the unit.
Place the surround speakers directly to the side of or slightly behind the listening area. Align them horizontally, about 1 meter (3.2 feet) above ear height.
Place the sub woofer in any place between the two front speakers.
Sound from the surround speakers or center speaker depends on the setting of the DSP, Dolby Pro Logic and 5.1 CH function.
CONNECTING THE SUPPLIED ANTENNAS @
Connect the FM antenna to the FM 75 Q terminals and the AM antenna to the AM LOOP terminals.
To stand the AM loop antenna on a surface
Fix the claw to the slot as shown in the illustration.
To position the antennas FM feeder antenna:
Extend this antenna horizontally in a T shape and fix its ends to the wall.
AM loop antenna:
Position for the best reception.
●Do not bring the FM antenna near metal objects or curtain rails.
●Do not bring the AM antenna near other external equipment, the unit itself, the AC power cord or speaker cords, as noise will be picked up.
●Do not unwind the AM loop antenna wire.
CONNECTING AN OUTDOOR ANTENNA
For better FM reception, use of an outdoor antenna is recommended. Connect the outdoor antenna to the FM 75 Q terminals.
Detach the battery cover on the rear of the remote control and insert two R6 (size AA) batteries.
When to replace the batteries
The maximum operational distance between the remote control and the sensor on the unit should be approximately 5 meters (16 feet). When this distance decreases, replace the batteries with new ones.
Using the remote control
The instructions in this manual refer mainly to the buttons on the main unit. Buttons on the remote control with the same names as those on the main unit can be used as well.
●If the unit is not going to be used for an extended period of time, remove the batteries to prevent possible electrolyte leakage.
●The remote control may not operate correctly when:
-The line of sight between the remote control and the remote sensor in the display window is exposed to intense light, such as direct sunlight.
-Other remote controls are used nearby (those of television, etc.)
PHONES FRONT SPEAKERS A, B
To turn the unit on
Press one of the function buttons (TUNER, PHONO, AUX, CD, VIDEO 1/5.1 CH, VIDEO 2 or VIDEO 3) or theTAPE MONITOR button.
When pressing the TUNER button, the previously tuned station is received (Direct Play Function).
The POWER button is also available.
Operation is possible after four seconds, while the VOL (volume) level or function name is displayed one after the other and the selected function indicator flashes.
To select the front speaker system
To use speaker system A: Set the FRONT SPEAKERS A button to sON.
To use speaker system B: Set the FRONT SPEAKERS B button to sON.
To use both speaker systems: Set both the buttons to s ON. Set the button(s) to .EOFF to turn off the speaker system(s).
As the front speaker systems A and B are connected in series:
-The sound will be slightly decreased when using both speaker systems
-No sound can be heard if the FRONT SPEAKERS A and B buttons are set to ~ ON when only one speaker system is connected
Using the headphones
Connect headphones to the PHONES jack with a standard stereo plug (06.3 mm, 1/4 inch). Be sure to set the FRONT SPEAKERS A and B buttons to 10FF. Otherwise sound is output from the speakers.
The 5.1 CH function, Dolby Pro Logic or DSP system is automatically canceled when the headphones are plugged in.
To turn the unit off, press the POWER button.
CUSTOM AUDIO ADJUSTMENT
Each time it is pressed, the level changes. Select one of the three levels, or the off position to suit your preference.
Turn the VOLUME control on the unit, or press the VOLUME buttons on the remote control.
The volume level is shown on the display for four seconds. It can be adjusted between Oand MAX (31). It flashes when being set over the level 21.
The volume level remains memorized even after the power is turned off. However, if the power is turned off when the volume is set to more than 17, it is automatically set to 16 the next time the power is turned on.
To adjust the Ieft/right balance of the front speakers
Press the BALANCE button to display ‘l_/R OdB. Then press the DOWNY or UPA button repeatedly within four seconds. Note that the front speakers balance of the 5.1 CH and Dolby Pro Logic modes is also changed.
To mute the sound temporarily
Press the MUTING button
“MUTEON” appears on the display for four seconds. While muting the sound, the selected function indicator flashes. Press the MUTING button again to restore the sound.
. . . .
. . . . . .
. . . .
. . . . . .
. . . .
. . . . . .
SOUND ADJUSTMENT DURING
The output volume and tone of the speakers or headphones may be freely varied without affecting the level of the recording.
This unit provides the following five different equalization modes.
ROCK: Powerful sound emphasizing treble and bass POP: More presence in the vocals and midrangeJAZZ: Accented lower frequencies for
CLASSIC: Enriched sound with heavy bass and fine treble BGM: Calm tone with suppressed bass and treble
Press one of the GEQ (Graphic Equalizer) buttons.
The selected mode name appears on the display for four seconds, and the selected mode on the display is enclosed with parentheses.
To cancel the selected mode
Press the selected button again. “GEQOFF appears on the display.
To select with the remote control
Press the GEQ button repeatedly until the desired equalization mode is displayed.
C3QC2 cac2Qc2 , (JC2ua’
The DSP (Digital Signal Processor) surround circuits can recreate the effect of sounds reflected from walls or ceilings, to obtain the sound presence of real environments. There are four modes with matching graphic equalization modes. Equalization modes are selected automatically and can also be selected or turned off to suit your preference.
Press one of the DSP buttons (DANCE, LIVE, HALL or
The selected mode name appears on the display for four seconds, and the selected DSP and matching GEt2 modes on the display are enclosed with parentheses.
Selected DSP mode
Matching GEQ mode
When the music source is monaural
Select LIVE to obtain a simulated stereo effect. When DANCE, HALL or ARENA is selected, no sound will be heard from the surround speakers.
To cancel the selected mode
Press the selected button again. “DSPOFF appears on the display. Even if canceling the selected DSP mode, the matching or selected GEQ mode still remains. To cancel both the selected DSP mode and the matching (or selected) GEQ mode at the same time, press the DSP/GEQ OFF button.
To select with the remote control
Press the DSP button repeatedly until the desired DSP mode is displayed.
To adjust the volume and balance of the surround speakers
Press the MANUAL SELECT button twice or three times, while the DSP system is turned on, to display
Note that the surround speakers volume and balance of the 5.1 CH and Dolby Pro Logic modes are also changed.
●The DSP system is automatically canceled:
-when the Dolby Pro Logic is turned on
-when the 5.1 CH function is selected
●The DSP system cannot be turned on:
-while the 5.1 CH function is selected
-while headphones are plugged in
SELECTION OF AUDIO/VIDEO
1 Select the program source.
Press one of the function buttons or the TAPE MONITOR button.
VIDEO 1/5.1 CH, VIDEO 2,
LD or Cable TV
MD or DVD
VIDEO 1/5.1 CH
The function buttons to be pressed (except PHONO) depend on the equipment connected to the input terminals on the rear panel of the unit.
When using a turntable with a
2 Start the selected program source.
3 Adjust the sound.
About the video source to the monitor or TV
Selected VIDEO source
Vl: VIDEO 1, V2: VIDEO 2, V3: VIDEO 3
The selected video source is indicated on the display and the video signal through the MONITOR VIDEO OUT jack is output on the TV.
To change a displayed name for the VIDEO 1/5.1 CH button and VIDEO 2 button
When the VIDEO 1/5.1 CH button is pressed, VIDEO 1 is displayed initially. It can be changed to DVD or MD.
With the power on, press the POWER button while pressing the VIDEO 1/5.1 CH button.
This VIDEO 1/5.1 CH button also works as the 5.1 CH (5.1 INPUT) function switch. While the selected function name (VIDEO 1, DVD or MD) for the VIDEO 1/5.1 CH button is displayed, press the button again. The function name will change to “5.1CH” and the source connected to the 5.1 INPUT terminals is selected.
To resume, press the button again so that the selected function name is displayed.
The displayed name for VIDEO 2 button can be changed to VIDEO 2, LD orTV with the power on, press the POWER button while pressing the VIDEO 2 button.
To adjust the sound level of the connected source
The input sensitivity level of each function (except the TUNER and 5.1 CH functions) can be adjusted.
When the sound level of the connected source is higher or lower than that of the TUNER, adjust it as follows.
1 Select the function to be adjusted.
Press the function button accordingly and play the source.
2 Press the UPA or DOWNV button repeatedly.
The level can be adjusted between
●The input sensitivity level of the TUNER or 5.1 CH function cannot be adjusted.
●That of the TAPE MONITOR cannot be adjusted either.
Even if the TAPE MONITOR is selected and the TAPE MONITOR indicator turns red, pressing the UPA or DOWNV button will change the level of the function displayed on the window.