CD Stereo System Operating Instructions Model No. SC-AK78 Before connecting, operating or adjusting this product, please read these instructions completely. Please keep this manual for future reference.
Table of contents Dear customer Thank you for purchasing this product. For optimum performance and safety, please read these instructions carefully. Before use These operating instructions are applicable to the following system. System SC– AK78 Main unit SA– AK78 Before use Supplied accessories .......................................................... 2 Precautions ........................................................................... 4 Concerning the remote control ...........................
Boosting the super woofer ................................................ 27 Using the built-in sound quality/sound field settings .... 27 Varying the sound quality with the manual equalizer .... 28 Varying the sound quality with the acoustic image equalizer ........................................................................... 29 Tri-amp control ................................................................... 29 Surround systems ..............................................................
Precautions Before using this unit please read these operating instructions carefully. Take special care to follow the warnings indicated on the unit itself as well as the safety suggestions listed below. Afterwards keep them handy for future reference. Safety Before use 1. Power Source—The unit should be connected to power supply only of the type described in the operating instructions or as marked on the unit. 2.
Concerning the remote control Battery installation EST. 1924 1 Selecting fine audio equipment such as the unit you’ve just purchased is only the start of your musical enjoyment. Now it’s time to consider how you can maximize the fun and excitement your equipment offers. This manufacturer and the Electronic Industries Association’s Consumer Electronics Group want you to get the most out of your equipment by playing it at a safe level.
Placement of speakers (Right) (Left) Placement of front speakers Place the speakers so that the superwoofer is on the outside. Note Before use • Keep your speakers at least 10 mm (13/32˝) away from the system for proper ventilation. • To avoid damage to the speakers, do not touch the speaker cones if you have taken the nets off. Superwoofer Placement of center/surround speakers Center speaker Place the center speaker above your TV, as close to it as possible.
Connections 1 2 3 Basic connections (for supplied accessories) Before use • Plug the AC power cord into a household AC outlet only after all other connections have been made. • To prepare the antenna wires and speaker cords, twist the vinyl cover tip and pull off. 45 1 6 1. Connect the FM indoor antenna. Adhesive tape ANT Tape the antenna to a wall or column, in a position where radio signals are received with the least amount of interference.
Connections Optional antenna connections FM outdoor antenna (not included) You may need an outdoor antenna if you use this system in a mountainous region or inside a reinforced-concrete building, etc. Before use 75Ω coaxial cable (not included) 30mm ANT FM 75Ω GND Disconnect the FM indoor antenna if an FM outdoor antenna is installed. Remove a piece of the outer vinyl insulator. Twist the shield braid. Expose the core wire.
Connections DVD player with 5.1 ch OUT (not included) Rear panel of this unit R (MIX OUT) External unit connection • For details, refer to the manual of the units which are to be connected. • When units other than those described below are to be connected, please consult with your dealer. L AUX 1 AUX 2 DVD player with 5.1 ch OUT L FRONT SUBWOOFER CENTER CENTER 6CH DISCRETE INPUT SUBWOOFER R L SURROUND SURROUND Laser disc player/ DVD player without 5.
Front panel controls Main unit No. Name Ref. page Input select buttons and indicators .......... 14, 17, 21, 40 (CD, TUNER BAND, TAPE DECK 1/2, AUX 1/2, 6CH DISCRETE INPUT) Standby/on switch ( , POWER) .............................. 12 Press to switch the unit from on to standby mode or vice versa. In standby mode, the unit is still consuming a small amount of power.
Front panel controls Remote control No. AUTO OFF SLEEP MUTING DISC CH SELECT AV EFFECT 3D AI EQ SUPER SIMULATED S.WOOFER PRO LOGIC SURROUND STEREO PROGRAM CANCEL AUX1/2 TAPE REPEAT TUNER 6 CH TEST VOLUME AUDIO SYSTEM RAK-SA958WK RANDOM CD function is exactly the same way as the buttons Name Ref. page Standby/on button ( ) ................................................ 12 Auto power-off (AUTO OFF) ......................................... 13 Numeric buttons (≥10, 1– 0) ............
Turning the demo function off (DEMO) DISPLAY DEMO If the clock has not been set, a demonstration of the display is shown when the unit is off. This function is set to on at the time of purchase. To get the most from the economy mode (see below), turn the demo function off. Press and hold [-DISPLAY/ – DEMO] until “NO DEMO” is displayed.
Setting the time 1 The example in the figure shows how to set the time for 4:25 p.m. DISPLAY DEMO 2, 4 1. Press [POWER] to turn the unit on. 2. Press [CLOCK/TIMER] to select “CLOCK”. Every time you press the button; CLOCK PLAY REC Previous display 3 The display will return to whatever was displayed before you set the time. 1 Displaying the clock When the unit is off. When ECO mode is off; The clock is displayed constantly. When ECO mode is on; Press [-DISPLAY/–DEMO].
Presetting radio broadcasts 1 3 2 4 • Up to 12 stations can be set in each band with automatic or manual memory presetting. • If broadcast frequencies are preset in the memory, you can easily tune in any of these frequencies from the system or remote control unit. • You can preset just those stations you like. (See “Presetting only your favorite stations” below.) 1. Press [TUNER/BAND] to select band. The power will come on automatically. Every time you press the button; “FM” 2. Press [ “AM”.
Listening to radio broadcasts 1. Press [TUNER/BAND] to select band. 1 FM MODE BP 3 4 2 The unit comes on and the radio begins to play. Every time you press the button; “FM” “AM”. 2. Press [ , TUNE MODE] to select “PRESET” or “MANUAL”. Every time you press the button; “MANUAL” PRESET: For preset stations MANUAL: For non-preset stations 3. Press [TUNE/TIME ADJ ( desired broadcast. or “PRESET”. )] to select the “ST” lights when an FM stereo broadcast is being received.
1, 3 Listening to compact discs Loading and checking CDs Always stop the changer before loading or changing CDs. You cannot change CDs while a disc is playing. How to load CDs 1. Press the [ ] button. The selected tray will open. 2. Set CD in the tray. 3. Press the same [ 1 Disc indicators ] button. The tray will close and the disc No., number of tracks and total playing time will be shown on the display.
Listening to compact discs 3 Sequential play 1 4 1. Press [CD]. The power will come on automatically. If the unit was off and a CD was loaded, play will start automatically (One touch play function). 2. Insert CDs in the trays. ( page 16.) 3. Press [CD 1] – [CD 5] to select the disc you want. (If the desired CD is indicated on the display panel the same op].
Listening to compact discs RANDOM Random play Press [RANDOM]. Every time you press the button: 1- DISC ALL DISC Previous display To random play just one disc Select the CD you want to random play with [CD1]-[CD5] and press [RANDOM] to select “1-DISC”. To random play all the loaded CDs Press [RANDOM] to select “ALL-DISC”. All tracks on the CD(s) will be played in random order. Playback will stop automatically when all tracks have been played.
Listening to compact discs AUTO OFF SLEEP MUTING DISC 4 CH SELECT 3 5 AV EFFECT Program play by remote control only You can program up to 24 tracks. 1. Press [CD]. 3D AI Ensure CD is stopped. EQ 2. Press [PROGRAM]. SUPER SIMULATED S.WOOFER PRO LOGIC SURROUND STEREO 2 CANCEL PROGRAM CANCEL AUX1/2 TAPE REPEAT TUNER 6 CH TEST VOLUME RANDOM CD 1 6 3. Press [DISC]. 4. (Within 10 seconds or so) Press [1] – [5] to select the disc you want. 5.
Listening to compact discs 3 2 1 To listen to special CDs and tracks (CD Manager function) 4 This function makes it easier for you to select specific CDs and tracks from amongst those loaded in the player. You can use this function to make recordings as well. 5 1 There are 3 CD/track selection modes.
Listening to tapes Types of tapes which can be played correctly: The unit automatically identifies the type of tape. 1 5 NORMAL POSITION / TYPE! ○ HIGH POSITION / TYPE @ ○ METAL POSITION / TYPE $ ○ 4 2 3 You can use either deck 1 or deck 2 for tape playback. 1. Press [TAPE DECK 1/2]. The power will come on automatically. If the unit was off and a cassette was loaded, play will start automatically (One touch play function). 1 2. Press [ DECK1 OPEN ] or [ and insert the tape.
Before recording (Deck 2 only) Listening to tapes Types of tapes which can record correctly The unit automatically identifies the type of tape. NORMAL POSITION / TYPE! ○ HIGH POSITION / TYPE @ ○ METAL POSITION / TYPE $ × This system cannot make a recording, or erase correctly, if metal position tapes are used. To record from the beginning of the tape You cannot record on the leader part of the tape. Before recording, wind the tape past the leader to a point where recording can start immediately.
Recording from radio broadcasts Preparation: Insert the tape to be recorded on into deck 2. Tape direction is automatically set to “ ”. Change the tape direction if you want to start recording from the reverse side. ( page 22) 1. Select a radio station. 2 3 ( page 15, steps 1 – 3) 2. Press [REV MODE] to select the reverse mode. Every time you press the button; : , 2 One side is recorded, then recording stops automatically.
Recording from compact discs 1 1 2 3 Sequential recording Preparation: 1. Insert the tape to be recorded on into deck 2. Tape direction is automatically set to “ ”. Change the tape direction if you want to start recording from the reverse side. ( page 22) 2. Insert the CD. 1. Press [CD 1] – [CD 5] to select the disc. Press [ ] to stop the CD. 2. Press [REV MODE] to select the reverse mode. Every time you press the button; 1 : , One side is recorded, then recording stops automatically.
2 1 3 Recording from compact discs To record special CDs and tracks (CD Manager function) 4 5 This function makes it easier for you to select special CDs and tracks from amongst those loaded in the player. • While recording, if a track is cut off in the middle at the end of the front side, it is re-recorded from the beginning on the reverse side. Front side Reverse side The interrupted track is re-recorded in its entirety on the reverse side.
Tape-to-tape recording The recording level will be recorded as they are on the tape being played back. 1 3 2 Preparation: Insert the cassettes. For playback: into deck 1 For recording: into deck 2 Tape direction is automatically set to “ ”. Change the tape direction if you want to start recording from the reverse side. ( page 22) 1. Press [TAPE DECK 1/2]. 2. Press [REV MODE] to select the reverse mode. Every time you press the button; 1 : , One side is recorded, then recording stops automatically.
Boosting the super woofer SOUND CONTROL JOG MAX (high) Light off (OFF) MUTING • When listening to the sound through the headphones Light on (ON) Light off (OFF) DISC CH SELECT • When listening to the sound through the speakers MID (medium) S.WOOFER AUTO OFF SLEEP Press [S.WOOFER]. AV EFFECT 3D AI EQ SUPER SIMULATED S.
Varying the sound quality with the manual equalizer (Manual EQ) 1 2 1. Dial [SOUND CONTROL JOG] to select “MANUAL”. When it is dialed down, the settings are selected in the following sequence. HEAVY CLEAR SOFT DISCO LIVE HALL MANUAL(M.EQ) AI EQ FLAT 1 Sound quality / sound field operations 2. Adjust the sound quality.
1 2 Varying the sound quality with the acoustic image (AI) equalizer (3D AI EQ) It is possible to use the acoustic image equalizer (AI EQ) together with the surround effect to create your own sound effect. The AI EQ equalizer uses the SOFT, SHARP, HEAVY and LIGHT sound quality coordinates to achieve subtle sound quality settings with ease. 1. Press [3D AI EQ] to adjust the surround level. 1 Every time you press the button; AI EQ 3D AI 1 3D AI 2 2. Adjust the sound quality.
Surround systems • Select the surround mode appropriate to the source you are using. Read the following explanations to aid your selection. • You may experience a reduction in sound quality when these surround systems and effects are used with some sources. If this occurs, either turn the surround system or effect off or reduce the level of the effect. Note • All the features are only effective if speakers are used. No discernible effect will be heard through headphones.
Add these audio effects to improve the experience • Check the set-up of your speakers. Set your speakers up to suit the surround mode you have selected to get the best surround effect. These modes cannot be used with the radio. Virtual rear surround effect Center focus 1 effect • This mode is useful if you have to place your surround speakers on the front speakers because of the room’s layout. • This mode makes it seem like the sound from the surround speakers is coming from behind you.
6CH DISCRETE INPUT mode AUTO OFF SLEEP MUTING Preparation: If you have connected a subwoofer (not included), press and hold [S.WOOFER] for about 2 seconds so “SUB W ON” is shown on the display. DISC 2 CH SELECT AV EFFECT 2 3D AI EQ PROGRAM CANCEL 1 TAPE REPEAT SIMULATED TUNER Sound quality / sound field operations 32 RQT5289 Sit in the normal listening position and make the adjustments with the remote control. RANDOM CD Output the test signal from the DVD player (not included).
Enjoying sound with DOLBY PRO LOGIC (DOLBY PRO LOGIC) AUTO OFF SLEEP MUTING 1. Press [ DISC The [ 2 CH SELECT 2. Adjust the volume of each speaker. AV EFFECT 2 3D AI PRO LOGIC]. PRO LOGIC] indicator lights. Sit in the normal listening position and make the adjustments with the remote control. EQ 1 SUPER PROGRAM CANCEL AUX1/2 TAPE REPEAT TUNER 6 CH TEST 2 1 SIMULATED S.WOOFER PRO LOGIC SURROUND STEREO VOLUME RANDOM CD Press [TEST]. A test signal is output.
Enjoying sound with stereophonics (SUPER SURROUND) AUTO OFF SLEEP MUTING • This mode adds the 5ch surround effect to the normal stereo sources. • SUPER SURROUND is only effective if speakers are used. No discernable effect will be heard through headphones. DISC CH SELECT AV EFFECT 1. Press [SUPER SURROUND] and select MOVIE mode or MUSIC mode. 3D AI EQ SUPER SIMULATED S.
AV EFFECT INDICATORS SOUND CONTROL JOG AUTO OFF SLEEP MUTING Using the virtual rear surround effect (VIRTUAL REAR SRND) • When the surround speakers are put on the front speakers, this mode makes it seem like the sound from the surround speakers is coming from behind you. • This mode can be used with DOLBY PRO LOGIC, MOVIE (SUPER SURROUND), and 6CH DISCRETE INPUT. DISC AV EFFECT 3D AI EQ SUPER SIMULATED S.
Using the 3D ENHANCED effect (3D ENHANCED) AV EFFECT INDICATORS SOUND CONTROL JOG AUTO OFF SLEEP MUTING DISC CH SELECT AV EFFECT 3D AI , AV EFFECT EQ SUPER SIMULATED S.WOOFER PRO LOGIC SURROUND STEREO PROGRAM CANCEL AUX TAPE REPEAT TUNER • This mode makes it seem like there are multiple surround speakers in your room. • This mode can be used with DOLBY PRO LOGIC, MOVIE (SUPER SURROUND), and 6CH DISCRETE INPUT. RANDOM Push [SOUND CONTROL JOG].
Using the timer 7 Using the play timer 5 6 1, 2, 3 2, 3 Preparations • Switch on the power. • Make sure that you have completed “Setting the time” on page 13. The figure shows how to set the play timer to play from 6:30 a.m. to 7:40 a.m. 1. Press [CLOCK/TIMER] to select “ PLAY”. Every time you press the button; CLOCK 1 PLAY REC Previous display 2. “ON” time setting (Within 8 seconds or so) Press [TUNE/TIME ADJ ( Press [CLOCK/TIMER]. or )] to select the starting time.
Using the timer 7 Using the record timer Preparations 6 1, 2, 3 2, 3 • Switch on the power. • Make sure that you have completed “Setting the time” on page 13. Set the timer at least 2 minutes before you want to start recording. The figure shows how to set the record timer for recording from 6:30 p.m. to 8:00 p.m. 1. Press [CLOCK/TIMER] to select “ REC”. Every time you press the button; CLOCK PLAY REC Previous display 1 2.
Using the timer Using the play/record timer Using the sleep timer This timer turns power to your system OFF at the set time (Max. 2 hours, settable at 30 minute intervals). It lets you fall asleep listening to music. by remote control only The figure shows how to set the system to standby mode after 30 minutes. PLAY REC CLOCK TIMER AUTO OFF SLEEP MUTING DISC SLEEP If you set the timer incorrectly Repeat the procedure from step 1.
Using an external unit Listening to an external source 1 (See page 9 for external unit connection.) 1. Press [AUX1/2] or [6CH DISCRETE INPUT]. The power will come on automatically. 2. Start playback from the external source. (For details, refer to the owner’s manual of the equipment.) Recording from an external source 1 1. Press [ DECK 2 OPEN] and insert the tape. Close the holder by hand. 2. Press [REV MODE] to select the reverse mode. 3. Press [AUX1/2] to select the external source. 4.
Concerning compact discs With this system, you can only play CDs having this mark. However, do not use irregular shape CDs. CDs of the sort can damage the unit. How to hold CDs Do not touch the recorded surface. How to clean CDs Handling precautions • If you are taking the CD from a cold to a warm environment, moisture may form on the CD. Wipe this off with a soft, dry, lint-free cloth before using the CD. • Do not write on the label side with a ball-point pen or other writing instrument.
Troubleshooting guide Before requesting service for this unit, check the chart below for a possible cause of the problem you are experiencing. Some simple checks or a minor adjustment on your part may eliminate the problem and restore proper operation.
Problem Probable cause(s) Suggested remedy Reference page(s) The location and orientation of the antenna are incorrect. If you are using an indoor antenna, change to an outdoor antenna. 8 The wiring at the back of the system is unsuitable. Separate the antenna wire of the TV set from the system. ——— Sound is low, intermittent, poor quality, noisy, scratchy, or unsteady. Heads are dirty. Clean the heads. 43 The deck does not enter the recording mode.
Specifications AMPLIFIER SECTION CD SECTION GENERAL Front speaker power output RMS power output THD 1.0% , both channels driven 55 Hz–120 Hz 100 W per channel (6Ω) 120 Hz–4 kHz 30 W per channel (6Ω) 4 kHz–15 kHz 30 W per channel (6Ω) Total tri-amp power 160 W per channel Power output in Dolby Pro Logic mode RMS power output THD 1.
