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Coustic RX-779 User's Manual

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1. a sound investment No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronii mechanical photocopying recording or otherwise without the prior written permission of CONCEPT ENTERPRISES INC Please take a moment to complete and mail in the Warranty Registration Card and record the serial number in the spac provided below This information may be useful in recovering your unit if it is ever stolen Serial No Date of Purchase TABLE UF CONIENIS Section FEATURES OF THE RX 779 essere 4 CONTROLS AND INDICATORS Front Panel Controls LCD Display OPERATION Audio Adjustment CD Changer Operation Tuner Operation Tape Operation Auxiliary Input Digital Clock Setting INSTALLATION PREPARATION eee 14 MECHANICAL INSTALLATION PROCEDURES Mounting Location Installation of Main Unit Installation and Removal ELECTRICAL INSTALLATION PROCEDURES Electrical Wiring Precautions Wiring Descriptions Electrical Wiring Diagrams Aux Input Terminal FINAL SYSTEM CHECK Preliminary Check Noise Check CARE AND MAINTENANCE Fuse Replacement met TROUBLE SHOOTING GUIDE n 22 SPECIFICATIONS erre ererto rtr inin 24 HIGHLIGHTS aoa ee due pw os a E P Wev PIP NS RUM Rie Built In 10 Disc CD changer Control Disc T
2. GROUND ZAUTION Always connect the yellow wire to a constant 12 V The CD changer will not receive power from the RX 779 if this wire is not properly connected RX 779 CAR STEREO UNIT 2ch 4ch Switch On bottom of Unit BLACK ANTENNA INPUT GROUND CD CHANGER DIN CABLE TO POWER ANTENNA REMOTE POWER AMPLIFIER TRIGGER CC 101 COMPACT DISC CHANGER AMP 360 460 POWER AMPLIFIER OPTIONAL TO LOUDSPEAKER SYSTEMS AMP 360 460 POWER AMPLIFIER OPTIONAL SPEAKER WIRING FOR USE IN 2 CHANNEL OPERATION TO LOUDSPEAKER SYSTEMS Fima 17 Elantrinal Vire Dieses tac D Channel Pm emt ELECTRICAL INSTALLATION D AUX INPUT TERMINAL The RX 779 is designed with a Auxiliary External CD Input to accommodate an external digital compact disc player or any other line level signal source if a CD changer is not connected via the DIN terminal CAUTION Do not use this input if a CD Changer is already connected to the RX 779 via the DIN terminal The CD changer connection will disable the AUX input function CA OUTPUT Fotauazen NON AMPL ISEN sx CAR STEREO N co BUTTON i NG Conner Figure 18 Connecting the AUX Input FINAL SYSTEM CHECK The RX 779 is now ready for preliminary testing and noise check Before beginning preliminary testing and noise check connect battery ground cable refer to ELECTRI
3. I coustic RX 779 HIGH POWER DIGITAL AUTO REVERSE CASSETTE RECEIVER with REMOVABLE FRONT PANEL and CD CHANGER CONTROL 4260 Charter Street Vernon CA 90058 2596 U S A TEL 800 2 FAX 213 5 82 2832 a Sie Eels Hs HE 68 8 CONGRATULATIONS On purchasing a Coustic state of the art digital FM AM cassette car audio unit Your choice indicates a genuine appreciation for fine music reproduction Whether you are adding your Coustic FM AM cassette receiver to an existing system or installing a completely nev system you are certain to notice immediate performance benefits Our unique tape transport with Auto Alignec Azimuth system produces crystal clear sound at all frequencies This removable front panel high power car radic cassette receiver features 30 Preset Stations with Automatic Station Memory Preset Scan Tape Program Search Dolby B Noise Reduction Metal Tape Equalization Active Bass Treble Tone Controls and 10 Disc CD changer contre assure that you are receiving the best performance possible from your car audio system But Coustic does not just manufacture full featured FM AM radio cassette units We also manufacture a state ol the art Real Time Analyzer for sound system diagnosis full featured AM FM CD receivers high performance powe amplifiers award winning electronic crossovers and dynamic hi fi component speakers Coustic has everything yo need to create the ultimate car audio system Coustic
4. briefly audition a track or disc before deciding whether to play or skip it TRACK SHUFFLE PLAY Shuffle Play lets you shuffle the playing order of tracks on the compact discs you listen to most You ll find this feature reduces the monotony of listening to a disc in the same order each time REPEAT FOR TRACK AND DISC The Repeat function lets you listen to a favorite track on a disc or an entire disc over and over again BACKWARD FORWARD MUSIC SEARCH This feature allows you to search forward or backward at 20 times normal playback speed to quickly find a particular section of a track TRACK SKIP DISC SKIP Track Skip Disc Skip lets you advance play to the next consecutive track or disc This is a convenient way of avoiding lracks discs that you don t want to listen to and advance to others 10 TRACK PROGRAMMABLE MEMORY You can program your most favorite cuts up to 10 tracks from the loaded discs into memory for playback PLL QUARTZ SYNTHESIZER TUNING The Coustic RX 779 is equipped with a sophisticated hase lock loop PLL quartz synthesizer tuner and a micro 3rocessor to provide extremely accurate tuning ADVANCED FM OPTIMIZER VI CIRCUITRY The new RX 779 features an improved dual MOSFET 3alanced Mixer Low Noise Tuned Front End redesigned Advanced FM Optimizer VI Circuitry coupled with Keyed Automatic Gain Contro AGC and new IF Circuitry This advanced circuitry design continuously monitors FM signal strength adjus
5. preset memories In CD changer mode use this button in conjunction with track disc selection buttons to store up to 10 tracks among the loaded discs into Program Memory LOUDNESS CONTROL LOUD Press the LOUD button to activate the Loudness Control circuit Press the LOUD button again to deactivate the Loudness Control circuit CD PLAY PAUSE BUTTON n In CD changer mode press this button once to pause the playback function Press the It e button again to resume playback DISC SCAN PRESET STATION 1 BUTTON 1 D SCAN In CD changer mode press the 1 D SCAN button once to perform DISC SCAN function The changer will begin playbackthe firsttrack of the discfor 10 seconds After that it will skip to the next loaded disc and begin playback the first track for 10 seconds Press 1 D SCAN again to de activate this function By pressing and holding this button for more than 2 seconds the changer will proceed to DISC 1 and start playback from the first track When unit is operating in Tuner Mode this button functions as 1 Memory Preset or Recall button 14 15 16 SHUFFLE PRESET STATION 2 BUTTON 2 SHUFF In CD changer mode press the 2 SHUFF button once t activate TRACK SHUFFLE function The changer wi randomly playback all the tracks in the current disc unt each track has been played once The TRACK SHUFFLE function will repeat unless it is deactivated By pressing and holding 2 SHUFF for more than 2 seco
6. the selected disc number TRACK INDICATOR TRACK Indicates the selected track number SHUFFLE INDICATOR SHUFF Indicates that Shuffle track function is activated DISC TRACK SCAN INDICATOR D SCAN Indicates that Disc Scan or Track Scan function is acti vated DISC TRACK REPEAT INDICATOR D RPT Indicates that Disc Repeat or Track Repeat function is activated OPERATION CD Changer Control CO i TS Cree l f i Figure 3 RX 779 Control Panel A AUDIO ADJUSTMENT Turn unit on To adjust Volume press the button to increase or the button to reduce the output level of the receiver The current level e g VOL 40 will be displayed on the LCD Volume setting is available between 20 min and 80 max The sequence for audio adjustment is as follows Volume Bass Treble Balance Fader Volume Pressing the A S button in succession will cycle through these functions Note If the or buttons are not pressed after the desired mode is displayed the audio adjust mode will return to volume adjust mode after 5 seconds To adjust Bass press the A S button once The current Bass levele g BAS 2 will be displayed on the LCD Press the button to increase or the button to reduce the bass level To adjust Treble press the A S button until the LCD displays TRE followed by the level indication Press the button to increase or the
7. C will appear on the LCD display B Press the DO button again to deactivate the Dolby NR circuit E AUXILIARY EXTERNAL COMPACT DISC INPUT Ifa CD changer is not connected to the RX 779 via the DIN terminal a pair of RCA jacks labelled as AUX INPUT can be used for connection with an extemal source such as a CD or Cassette Walkman or a stand alone CD changer Controller system Caution Do not use this input to connect to any source if a CD Changer is connected via the DIN terminal The CD changer connection will disable the AUX input function Toactivate Auxiliary Input first turn the unit on press the MODE button once The symbol Cd will appear on the LCD Display Adjust volume bass treble balance and fader con trols to suit your listening preference Operate external CD Auxiliary unit for program source Press the MODE button again to retum to Tuner Tape Mode F DIGITAL CLOCK SETTING To set the correct time on the digital clock the unit must be POWERED OFF with the vehicle s ignition on The LCD should display the time Press the DISP button for more than 2 seconds to entered clock setting mode The digits indicating Hour will flash Press the button to advance the hour setting or press the button to set the hour backwards to the desired reading Note If the or buttons are not pressed while the display is flashing the clock setting mode will be cancelled and the display will
8. CAL INSTAL LATION for details A PRELIMINARY TESTING 1 Activate ON OFF button A Set volume control to a comfortable listeninc level B Settone controls to their center flat positions C Center balance control D Center fader control 2 BE CAREFUL Do not overdrive system surge o high power from amplifiers could damage audio com ponents 3 Slowly tum volume up and listen carefully for A Obvious distortion If sound is obviously dis torted tum system off and refer to the Troubk Shooting Guide at back of this manual B Nosound No hiss Total silence If you hea no sound and no hiss turn system off imme diately Double check all power connections Use Volt Ohm meter VOM to make sure thert is good chassis ground for each component tha needs to be grounded and good B 12 volt positive at all power inputs After making the necessary corrections slowly tum power on symptoms persist refer to the Trouble Shootinr Guide at the back of this manual C No display If clock time is not displayed on th LCD panel switch off the system Refer to thr Trouble Shooting Guide at the back of th manual B NOISE CHECK Now you can check the entire audio system for noise 1 Start engine 2 Switch audio system on 3 Rev engine and vary volume of audio system t determine if there is any unwanted noise 4 lf audio system exhibits a whine or tic tic noise tun both audio system and engine off Refer t
9. DOWN SEEK TUNING UP DOWN TRACK SELECT BUTTON SEEK In tuner mode press the SEEK button once to activate automatic search up the frequency band Press the NY SEEK button to search down the frequency band In CD changer mode press the TRACK w button to advance to the next track Press the N TRACK button to return to the beginning of the track being played CONTROLS AND INDICATORS 10 11 12 13 UP DOWN MANUAL TUNING UP DOWN DISC SELECT and FORWARD BACKWARD MUSIC SEARCH BUTTON NY TUNE AQ In tuner mode press and release the TUNE AQ or NA TUNE button for single step tuning UP or DOWN manual tuning will stop as soon as the respective button is released Press and hold the TUNE button or the NV TUNE button to speed tune up or down the selected band In CD changer mode press the DISC AY button to skip to the next loaded disc in the magazine or press the NA DISC button to return to the previous disc Press and hold either the UP or DOWN button for more than 2 seconds will initiate fonward or backward audible music search AUTOMATIC STATION MEMORY PRESET SCAN PROGRAM MEMORY BUTTON ASM P MEM In tuner mode Press the ASM button once to start the Preset Scan function Press and hold the ASM button for at least two seconds to activate the Automatic Station Memory ASM function The tuner will search through the waveband and store the strongest 6 stations into
10. ECIFICATIONS TAPE SECTION Cassette Mechanism Wow amp Flutter S N Ratio Separation Frequency Response RADIO SECTION Range Usable Sensitivity F Rejection Image Rejection Selectivity S N Ratio Stereo Separation GENERAL Power Source Input Current Distortion Frequency Response Bass Control Treble Control Loudness Control CD Aux Input Impedance Output Impedance Pre amp Output Speaker Output Output Power 4 Channel 2 Channel bridged Chassis Dimensions Auto Reverse with Auto Aligned Azimuth System and Tape Program Searct 0 15 WRMS 50 dB 65 dB with Dolby B NR 35 dB 30 18 000 Hz 5 dB Maxell UD XL IIS 70 uS FM AM 87 5 to 108 0 MHz 520 to 1720 KHz 1 8 uV for S N 30 dB 28 uV for S N 20 dB 75dB 45 dB 55 dB 60 dB 35 dB 65 dB 50 dB 38 dB 13 8 volts DC negative ground 6 amps maximum 0 0995 at 1 KHz 1 Watt 20 to 25 000 Hz 5 dB 15 dB at 100 Hz 13 dB at 10 KHz 10 dB at 100 Hz 5 dB at 10 KHz 300 mV 800 mV at 4 7 K Ohms 4 to 8 Ohms 5 Watts x 4 RMS 15 Watts x 2 RMS 7Wx2HxeD 178 W x 50H x 150 D mm DUE TO ONGOING RESEARCH AND PRODUCT IMPROVEMENTS WE RESERVE THE RIGHT TO UPDATE THE LISTED FEATURES AND SPECIFICATIONS WITHOUT ANY PRIOR NOTICE
11. KER Connect to positive terminal of rear left speaker GREEN BLACK REAR LEFT SPEAKER Connect to negative terminal of rear left speaker GRAY FRONT RIGHT SPEAKER Connect to positive terminal of front right speaker GRAY BLACK FRONT RIGHT SPEAKER Connect to negative terminal of front right speaker VIOLET REAR RIGHT SPEAKER Connect to positive terminal of rear right speaker VIOLET BLACK REAR RIGHT SPEAKER Connect to negative terminal of rear right speaker ANTENNA INPUT EXTERNAL ANTENNA Connect from external antenna to RX 779 FRONT LINE LEVEL RX 779 TO EXTERNAL Connect from front outputs of RX 779 to extemal power amplifier OUTPUT GRAY POWER AMPLIFIER REAR LINE LEVEL RX 779 TO EXTERNAL Connect from rear outputs of RX 779 to external power amplifier OUTPUT GRAY POWER AMPLIFIER DIN TERMINAL RX 779 TO CC 101 Connect Coustic CC 101 CD Changer to RX 779 AUX INPUT AUX SIGNAL Connect from pre amp output of external CD player or any BLACK SOURCE external source to RX 779 See Electrical Installation Section D ELECTRICAL INSTALLATION C ELECTRICAL WIRING CAUTION THIS UNIT HAS A BUILT IN HIGH POWER AMPLIFIER DO NOT CONNECT ANY SPEAKER TERMINAL TO GROUND AND DO NOT SHORT ANY SPEAKER WIRES TOGETHER IMPROPER GROUNDING AND SHORTING OF WIRES WILL DAMAGE UNIT AS WELL AS VOID PRODUCT WARRANTY ALL POSITIVE AND NEGATIVE SPEAKER WIRE PAIRS FROM THIS UNIT MUST BE CONNECTED DIRECTLY TO EACH SPEAKER
12. N SELECT BUTTON A S Select volume bass treble balance and fader adjustment by pressing this button The selected function will be indicated on the LCD UP ADJUST BUTTON Increase volume bass and treble level by pressing this button Use this button also to shift balance control to the right and fader control to rear DOWN ADJUST BUTTON Decrease volume bass and treble level by pressing this button Use this button also to shift balance control to the left and fader control to front POWER ON OFF BUTTON POWER Press the button once to turn unit on Press again to tum unit off MODE SELECT BUTTON MODE Select between tuner and CD changer or TAPE and CD changer mode by pressing this button Note If CD changer is not installed pressing the MODE button in TUNER or TAPE mode will change to CD AUX input mode for external CD player or CD changer 6 BAND SELECTOR PROGRAM CLEAR BUTTON BAND P CL In tuner mode use the BAND button to select the correct frequency band you want to perform the function on In CD changer mode press this button once to prepare to clear program memory Press the button again to confirm the program clear function DISPLAY MODE SELECT BUTTON DISP In tuner mode press this button to review the frequency being tuned The LCD will retum to display time after 5 seconds In CD changer mode press this button to display the lapse lime of the track being played UP
13. Press the Track Repeat 3 T RPT button once Observe the RPT indicator on the dis play lighting up Press the 3 T RPT button again to cancel the function Repeat Disc The Disc Repeat function lets you repeat the currently played disc To activate Disc Repeat press the 5 D RPT button once Observe the D RPT indicator on the display lighting up Press the Disc Repeat 5 D RPT button again to cancel the function Shuffle Play Shuffle Play lets you play the tracks on a disc in random sequence Toactivate Shuffle Play press the 2 SHUFF button once Observe the SHUFF indicator on the display lighting up Tracks on the current disc will commence playback in random sequence Press the 2 SHUFF button again to cancel the function Programming of Tracks and Discs The AX 779 is capable of storing 10 tracks into memory for programmed playback A Use the Up Down Track or Up Down Disc but tons to select the track to be stored into memory then press the P MEM button for more than 2 seconds and release The LCD will indicate a program memory number e g P 01 to be stored Press the P MEM button once again within 6 seconds while the memory number e g OT is still flashing to store this track into memory B Repeat the above procedure to store up to 10 tracks from any loaded discs into program memo ries P1 to P10 C To activate program play press the P PLAY but ton once the changer will begin playback tracks s
14. TERMINAL PAIR TO AVOID UNNECESSARY DAMAGE TO UNIT BE SURE TO CONNECT THE RED POWER WIRE B BEFORE CONNECTING TO GROUND CAUTION Always connect the yellow wire to a constant 12 V The CD changer will not receive power from the RX 779 if this wire is not properly connected RX 779 CAR STEREO UNIT 2ch 4ch Switch On bottom of Unit ANTENNA INPUT GROUND BLACK YELLOW CD CHANGER DIN CABLE TO POWER ANTENNA REMOTE POWER AMPLIFIER TRIGGER CC 101 COMPACT DISC CHANGER L RIGHT FRONT SPEAKER LEFT FRONT SPEAKER GRAY WHITE GRAY BLACK TO LOUDSPEAKER TI WHITE BLACK SYSTEMS AMP 360 460 POWER AMPLIFIER OPTIONAL VIOLET GREEN 4 VIOLET BLACK LEFT REAR RIGHT REAR SPEAKER SPEAKER SPEAKER WIRING FOR USE TO LOUDSPEAKER IN 4 CHANNEL OPERATION SYSTEMS Figure 16 Electrical Wiring Diagram for 4 Channel Operation ELECTRICAL INSTALLATION CAUTION THIS UNIT HAS A BUILT IN HIGH POWER AMPLIFIER DO NOT CONNECT ANY SPEAKER TERMINAL TO GROUND AND DO NOT SHORT ANY SPEAKER WIRES TOGETHER IMPROPER GROUNDING AND SHORTING OF WIRES WILL DAMAGE UNIT AS WELL AS VOID PRODUCT WARRANTY ALL POSITIVE AND NEGATIVE SPEAKER WIRE PAIRS FROM THIS UNIT MUST BE CONNECTED DIRECTLY TO EACH SPEAKER TERMINAL PAIR TOAND AUNERESS APY OHNE KPI iin SUME PO CORRECT MAE RED PUWEH WIKE B BEFORE CONNECTING TO
15. Tuning SEEK A button again to search the next station Follow the same procedure described above for DOWN SEEK Tuning OPERATION 3 Memory A The Tuner is capable of storing 18 FM and 12 AM stations into its memory Select astation eitherby Manual or Auto Seek Tuning When a desired station is reached press one of the memory preset buttons for at least 2 seconds to store the station s frequency into memory The tuner will mute momentarily and the memory symbol ME the selected memory 1 6 and the frequency of the station will appear on the LCD Display To program desired stations into memory repeat steps A amp B above pressing buttons 2 3 6 To recalla station from memory press a memory preset button once The memory symbol ME and station number e g 1 will appear on the LCD 4 Fagor d C This feature enables the tuner to automatically search and store the 6 strongest transmitting stations in each band Pressthe Automatic Station Memory button ASM for at least 2 seconds The tuner will search through the band storing the 6 strongest stations in ascending frequency After completing Automatic Station Memory op eration the tuner will resume normal radio recep tion on preset station number 1 CAUTION Automatic Station Memory will replace any existing preset station memories on the frequency band 5 Last Station Memory A This feature enables the tuner to return to the last sta
16. Volt Ohm meter VOM MECHANICAL INSTALLATION A MOUNTING LOCATION 1 2 Select a mounting location that is convenient and easily accessible usually in the dash Do not mount unit near engine or any heat generating ducts as doing so will damage the unit as well as void the product warranty The RX 779 is a standard DIN E chassis The opening required is 2 1 8 inches 53 mm x 7 1 16 inches 182 mm see Figure 6 Make sure there is a clearance of at least seven inches 178 mm behind the dash see Figure 7 7116 182mm Figure 6 Opening Required r 1178 mmy Eug 2 18 53 mm Figure 7 Depth Required NMEUNANIVAL IINS IALLA IIUIN B INSTALLATION T If your car is domestic Ford GM etc check to make sure you have enough room i e height width and depth before attempting installation You will probably need an installation kit Contact American International Metra Schoshe or your local Coustic dealer Mount unit at an angle no greater than 30 to the horizontal EXCELLENT o NO GOOD 9 Figure 8 Mounting No More than 30 to the Horizontal 3 Use the RX 779 mounting sleeve to check the dash opening Make sure mounting sleeve can slide easily into the dash opening but without excessive play no more than 1 16 or 1 5 mm on all sides Secure the mounting sleeve to the dashboard by bending the flanges 90 Use a screwdriver and or pair of needle
17. and breakage To install the panel to the main unit press tne left side of the panel against the spring loaded hinge on the main unit gently Figure 13 until the panel snaps onto the hinges Then press the right side of the panel into the cavity of the main unit until a Click sound is heard indicating that the panel is locked to the unit PRESS RIGHT SIDE PRESS AGAINST Cos SPRING LOADED j UNTIL UNIT CLICKS IN PLACE DASHBOARD Figure 13 Installing Front Panel to Main Unit To remove the panel press the Release button on the upper right hand comer of the panel Pull it away from the main unit gently by grabbing the right edge of the panel Figure 14 Removal of Front Panel CAUTION Make sure to turn the RX 779 off before removing front panel Failure to follow this instruction may damage the micro processor and render the unit non functional CLOUINIVAL INDIALLAIION The Coustic RX 779 is equipped with its own electrical wiring harness As types of audio cable used often vary audio cables are not included with the RX 779 Choose the audio cable that best fits your budget and performance preference A ELECTRICAL WIRING PRECAUTIONS CAUTION DO NOT ROUTE AUDIO CABLE AND Following are some basic wiring procedures POWER CABLE TOGETHER THIS CAN 1 For safety disconnect battery ground cable before CAUSE ENGINE NOISE IN YOUR AUDIO installation SYSTEM 2 Make wiring connections from one component to the n
18. button to reduce the treble level For Balance adjustment press the A S button until the LCD displays BAL followed by the level indication Press the button to increase the Right level or the button to increase the Left level To adjust Fader press the A S button until the LCD displays FAD followed by the level indication Press the button to increase the Rear level or the button to increase the Front level Note During automatic station search in tuner mode or fast forward rewind in cassette play mode audio adjustment is temporary prohibited B CD CHANGER OPERATION General Operation 1 Tum unit on 2 Press the MODE button to switch from either Tuner mode or Tape mode to CD Changer mode The changer will begin with the track last played before poweroff Observe the disc and track indicators on the LCD display lighting up Adjust volume bass treble balance and fader con trols to the desired level To Pause the changer press the PLAY PAUSE n button once Observe the word PAUSE lighting up onthe LCD Press the PLAY PAUSE Button again to resume play from the point at which it was stopped To select between Discs press on either side of the Disc Select N7 DISC A button It lets you easily search backward or forward x to find a particular disc Observe the disc number on the LCD display changes To select track press the Backward Track Skip N TRACK button once to
19. d for playback of high bias 70S metal tape LOUDNESS CONTROL INDICATOR LOUD Indicates that the Loudness Control circuit is activated DOLBY B NR INDICATOR X Indicates that the Dolby B Noise Reduction circuit is activated for playback of tapes recorded with Dolby B Noise Reduction system FM STEREO INDICATOR Sil When the FM signal is in Stereo Mode the indicator will appear on the LCD display When the FM signal is in Mono Mode or if the receiving signal is too weak for stereo separation the tuner will switch to mono reception and the indicator will disappear MEMORY INDICATOR ME Indicates that the tuned frequency is stored in the Preset Memory PRESET STATION IDENTIFICATION INDICATOR Indicates that Preset Memory Number 1 6 is being re called or programmed TAPE DIRECTION INDICATORS 4 The arrow on the right indicates that tape is running in forward direction The lt a arrow on the left indicates that tape is running in reverse direction 11 12 13 14 15 16 MULTI FUNCTION TUNER CD CHANGER AUDIO STATUS CLOCK DISPLAY Indicates the currently tuned frequency the currently played disc and track number audio status as well as the time of the day FM BAND INDICATOR FM 1 2 or 3 Indicates that the tuner is operating in FM Reception Mode AM BAND INDICATOR AM 1 or2 Indicates that the tuner is operating in AM Reception Mode DISC INDICATOR DISC Indicates
20. e playback frequency response rolloff at 18 KHz 5 dB for both left and right channels Tape direction can also be changed at any time during playback operation by simply pushing program buttons AUTO ALIGNED AZIMUTH SYSTEM To solve the perennial problem of tape head misalignment atter prolonged use Coustic has incorporated the Auto Aligned Azimuth System into the RX 779 s cassette mechanism to minimize the possibility of high frequency loss while delivering 3 dimensional life like sonic performance TAPE PROGRAM SEARCH The RX 779 is equipped with a Tape Program Search feature When TPS is activated the tape mechanism will automatically search in either direction for other songs on the tape It provides a fast and convenient way to search for tape programs DOLBY B NOISE REDUCTION SYSTEM This unit provides Dolby B Noise Reduction System for cassette playback The Dolby NR System assures low noise music reproduction and a wider dynamic range METAL TAPE EQUALIZATION The RX 779 tape equalization is switchable for playback of standard or high bias high quality or metal cassette tapes High bias or high quality metal tapes may be played by setting this switch at 70uS while standard tapes require a 1204S setting FEATURES ACTIVE BASS AND TREBLE TONE CONTROLS Special tone control circuits which utilize an operational amplifier based on analog computer technology provide a buffer an active tone equalizer a line dri
21. e than 2 seconds and then release CLR will flash on the LCD Press P CL button again within 6 seconds to clear all memo ries The RX 779 also features direct access to discs 1 to 6 Press and hold one of the six tuner preset buttons for more than 2 seconds will directly access the disc number pressed In case of CD changer hang up and there is no effect by pressing any CD Changer function buttons press the recessed Reset button RESET once with the tip of aball pen or pencil to reset the micro processor of the CD Changer This will clear all current changer func tions and programmed memories The changer will commence playback again C TUNER OPERATION Turn unit on Press Band Selector button for the desired reception band Adjust volume bass treble balance and fader con trols to the desired level Following are six methods of operation in Tuner Mode Manual Tuning A Press the Up Tuning TUNE A or Down Tuning w TUNE button to tune to the next higher or lower station on the frequency band B Activate fast UP DOWN tuning by pressing and holding either the Up TUNE A or Down N7 TUNE Tuning button until you reach a desired station DOWN TUNING Figure 4 Manual Tuning Automatic Seek Tuning Press the UP SEEK Tuning SEEK button once to activate Auto Seek operation The tuner will search up the frequency band for the next station stopping when a station is detected Press the UP SEEK
22. es and decreases as you not eliminate the noise the altemator diodes or the voltage regulator may not be vary the volume of all sound sources functioning properly and may need to be repaired or replaced FM AM or TAPE when the engine is running and the audio system is at a normal listening level 7 You hear a motor boating sound Check the red power wire connection Make sure it is connected directly to the battery when engine is running and the Check system s ground point to see that it makes good contact with the chassis audio system volume is set at a ground bare metal reasonably high level 8 No sound Audio system is not Check battery cables for a tight connection receiving power and there is Check all fuses no display on LCD Check all power wire connections use Volt Ohm meter to ensure that system is receiving 12 V DC 9 The RX 779 is very hot with the Check system s ground point it must make good contact with chassis ground system on and volume set at a bare metal normal listening level As you Speakers are shorted to ground Use Volt Ohm meter to check speaker connection increase volume the sound turns and make necessary corrections on and off at even intervals 10 When using the power antenna Check to see if fuse is blown Note that this lead is only intended for triggering not fo remote amp trigger lead to remotely current supply a relay must be used to trigger the power antenna turn on amp
23. ext Be sure that you plug outputs into inputs and not inputs into inputs 3 Itis best to route all wires along with existing electrical wiring in your vehicle to conceal them from view This may call for removal of kick panels door sills etc 4 Remember exactly how you removed each part from your vehicle so it can easily be replaced Put screws andotherhardware into a containerto reduce chances of losing them 5 To both protect and conceal wires we recommend using automotive flexible plastic tubing see Figure 15 For ease of handling we recommend using Figure 15 Flexible Plastic Tubing and Tie wraps plastic tie wraps see Figure 15 B WIRING DESCRIPTIONS The following table lists the wiring code and the connection points used in the Electrical Installation of the RX 779 ELECTRICAL PRIME CONNECTION DESCRIPTION RED SWITCHED 12 V DC Connect to a switched 12 V DC source BLACK GROUND Connect to vehicle s chassis ground bare metal YELLOW BATTERY Connect to the positive battery terminal constant 12 V DC source memory back up POWER ANTENNA Connect to relay of electrical antenna if available REMOTE AMPLIFIER If using RX 779 to tum on external amplifier connect to remote TRIGGER triggering terminal of power amplifier WHITE FRONT LEFT SPEAKER Connect to positive terminal of front left speaker WHITE BLACK FRONT LEFT SPEAKER Connect to negative terminal of front left speaker GREEN REAR LEFT SPEA
24. gin Tuner Mode this button function as 4 Memory Preset or Recall button CONTROLS AND INDICATORS 17 18 19 DISC REPEAT DOLBY B NOISE REDUCTION SELECTOR PRESET STATION 5 BUTTON 5 D RPT D0 In CD changer mode press the D RPT C button once to repeat current disc playback The DISC REPEAT func tion will continue indefinitely unless it is de activated By pressing and holding 5 D RPT DO for more than 2 seconds the changer will proceed to DISC 5 and start playback from the first track When unit is operating in Tape Mode this button functions as Dolby B Noise Reduction Selector Press the button once for playback of tapes recorded with Dolby B NR system Press the button again to deactivate Dolby NR In Tuner Mode this button functions as 5 Memory Preset or Recall button PROGRAM PLAY METAL TAPE SELECTOR PRESET STATION 6 BUTTON 6 P PLAY 70uS In CD changer mode press the 6 P PLAY 70uS button once to begin PROGRAM PLAY function Press and hold 6 P PLAY 70 S for more than 2 seconds will cause the changer to proceed to DISC 86 and start playback from the first track When the unit is operating in Tape Mode this button functions as a Metal Tape selector In Tuner Mode this button functions as 6 Memory Preset or Recall button FAST REWIND BUTTON 44 Push the Fast Rewind 44 button for fast rewind of a loaded cassette The 44 button will lock To release locking of the Fast Rewind mechan
25. ism depress the Fast Forward gt gt button slightly and cassette will resume normal playback FAST FORWARD BUTTON gt gt Push the Fast Forward gt gt button for fast advance of a loaded cassette The gt gt button will lock To release locking of the Fast Forward mechanism depress the Fast Rewind 44 button slightly and cassette will resume normal playback PROGRAM BUTTON PROG FOSTA Fass foward ey aviaire va eee Out ms Simultaneously to reverse program direction of a cassette tape This function lets you conveniently switch to the other side of the loaded cassette for immediate playback 22 23 25 26 EJECT BUTTON 4 Push the 4 button in to eject a loaded tape FRONT PANEL RELEASE BUTTON Push the button to detach front panel from main unit for maximum security RESET BUTTON RESET The RESET button is recessed to prevent accidental engagement and must be activated with a pen tip or some other pointed object It should only be used in special circumstances Refer to OPERATION section for more details LCD READOUT Displays all audio tuner tape and CD changer functions CASSETTE TAPE SLOT CONTROLS AND INDICATORS B LCD DISPLAY Figure 2 RX 779 LCD Display TAPE PROGRAM SEARCH INDICATOR TPS Indicates that the Tape Program Search function is acti vated METAL TAPE EQUALIZATION INDICATOR 70uS Indicates that the Metal Tape Equalization circuit is acti vate
26. lifier or electrical antenna the antenna or amplifier does not function 11 When audio system is in TAPE This is radiated noise and this problem is NOT caused by the RX 779 MODE only and engine is running Contact your local retailer installer as the problem is beyond the scope of this manua there is a whining noise that increases and decreases as volume level is varied 12 When audio system isin FM orAM This is radiated spark noise and the problem is NOT caused by the RX 779 Mode and engine is running Contact your local retailer installer as the problem is beyond the scope of this manua there is a rapid ticking sound that increases and decreases as volume level is varied IMUUBLE SHUOUITNG GUIDE SYMPTOM PROBABLE CAUSES AND SOLUTIONS SSeS 13 Audio system sounds good but Speakers are out of phase to each other and are cancelling bass out weak Bass is not normal If you Check wiring from radio to speakers and make sure goes to and adjust balance control left to right goes to at both extremes there is more bass than at center position 14 Fader does not function on Check to see that speakers are wired correctly speaker outputs 15 Radio and tape operate but radio Check yellow memory wire it must be connected directly to battery and not to a does not retain any of the stored switched 12 V preset station memories Check fuse and wire for proper connection SP
27. n of the tape Figure 19 Taking Up Tape Slack B FUSE REPLACEMENT If unit does not operate when switched on or the LCI geney does not light up check the fuse Turn unit off 2 Push and twist fuse holder It will spring apart Chec fuse and replace if necessary Use a standard 30 mr fuse with these ratings only Power supply 6 AMF memory 2 AMP power antenna remote amplifie 2 AMP 3 Reassemble fuse holder by pushing and twisting th two parts together until they snap TROUBLE SHOOTING GUIDE SYMPTOM PROBABLE CAUSES AND SOLUTIONS 1 diSC appears on LCD in No loaded discs in changer magazine CD changer mode 2 FOCUS appears on LCD in CD incorrectly loaded into magazine labelled side should be facing up CD changer mode 3 HOt appears on LCD in Temperature in changer too hot for normal operation the changer will shut CD changer mode down temporarily to protect the electronics from overheating Unit will return to normal operation after cooling down 4 Erf appears on LCD in Press reset button on front panel to reset micro processor CD changer mode Mechanical problem occurred in changer magazine cannot be ejected Contact your Coustic dealer 5 EJf appears on LCD in No disc magazine in changer Insert loaded magazine into changer CD changer mode 6 There is a whining noise that Install a 6 amp in line filter on Red power wire of RX 779 If this procedure does increas
28. nds the changer will proceed to DISC 42 and start playbac from the first track When unitis operating in Tuner Mode this button function as 42 Memory Preset or Recall button TRACK REPEAT PRESET STATION 3 BUTTON 3T RPT In CD changer mode press the 3 T RPT button once t repeat current track playback The TRACK REPEAT func tion will continue indefinitely unless it is de activated By pressing and holding 3 T RPT for more than 2 seconds the changer will proceed to DISC 3 and start playbacl from the first track When unitis operating in Tuner Mode this button function as 3 Memory Preset or Recall button TRACK SCAN TAPE PROGRAM SEARCH PRESET STATION 4 BUTTON 4 T SCAN TPS In CD changer mode press the 4 T SCAN TPS button once to perform TRACK SCAN function The changer will begir playback the first track of the disc for 10 seconds Afterthat it will advance to the next track and begin playback for 1t seconds Press this button again to de activate this func tion By pressing and holding 4 T SCAN TPS for more than seconds the changer will proceed to DISC 4 and star playback from the first track When unit is operating in Tape Mode this button function as a Tape Program Search Selector Used in conjunctior with the Fast Forward pp or Fast Rewind 44 button it rapidly scans tape programs forward or backwards anc stops at the next or beginning of the current song in tht direction selected Whenunitisoperatin
29. ning Press the UP SEEK Tuning SEEK A button once to activate Auto Seek operation The tuner will search up the frequency band for the next station stopping when a station is detected Press the UP SEEK Tuning SEEK AX button again to search the next station Follow the same procedure described above for DOWN SEEK Tuning OPERATION Other Functions 1 Track Intro Scan The Track Intro Scan SCAN function lets you audition the first 10 seconds of each track on a disc Press the Track Scan 4 T SCAN button once to activate Track Intro Scan Observe the SCAN indicator on the dis play lighting up When it reaches your desired track press the 4 T SCAN button again to cancel Intro Scan Playback of the chosen track will commence Discs Intro Scan The Disc Intro Scan 1 D SCAN function lets you audition the first 10 seconds of the first track of each disc Press the Disc Scan 1 D SCAN button once to activate Disc Intro Scan Observe the D SCAN indica tor on the display lighting up When it reaches your desired track press the 1 D SCAN button again to cancel the Intro Scan function Playback of the cho sen disc will commence Repeat Track The Repeat Track function lets you repeat the current track on the disc Press the Track Repeat 3 T RPT button once Observe the RPT indicator on the dis play lighting up Press the 3 T RPT button again to cancel the function Repeat Disc The Disc Repeat function le
30. nose pliers if necessary see Figure 9 Figure 9 Securing the Mounting Sleeve CAUTION BE CAREFUL NOT TO SCRATCH THE DASHBOARD WHEN RENDING THF FI ANGFS In some vehicles the firewall provides a bushing support for the rear of the unit Check the firewall for this bushing support before installing the unit see Figure 10 Ifthe support is available insert the rubber grommet supplied to the stud at the back of the unit and slide the unit into place as shown in Figure 10 Figure 10 Bushing Support for Unit If you were able to secure the unit properly in steps 4 and 5 above go to step 7 If not secure the rear of the unit to your car by fastening the metal strap supplied as shown in Figure 11 Slide unit slowly into mounting sleeve until the spring locks snap The unit is now securely locked inside the dash Figure 11 Securing the Rear of Mounting Sleeve MECHANICAL INSTALLATION 8 Toremove the unit remove the front panel first refer to Section Installing and Removal of Front Panel Unfasten the metal strap from the rear of the unit Insert two release forks into the mounting slots see Figure 12 to engage the spring loaded lockers Press the release forks downward and pull the unit out of the mounting sleeve Disconnect wiring Figure 12 Removing the RX 779 INSTALLATION AND REMOVAL OF FRONT PANEL The RX 779 front panel is housed in a protective case supplied to protect it from scratches
31. o th Trouble Shooting Guide at back of this manual 5 f audio system evidences no noise then doubb check wiring cables for safe placement CARE AND MAINTENANCE A Pigg ie CARE AND MAINTENANCE After systematic use the quality of tape reproduction is likely to deteriorate steadily This may be caused by build up of small particles of tape material on tape head as a result of normal friction It may also be caused by dust penetrating the cassette compart ment If no action is taken complete loss of output on one or both channels may result To ensure high quality reproduction the tape head should be cleaned regularly about every 20 hours of playing time Insert a special head cleaning cassette into tape compartment and allow it to run a few minutes to remove any foreign matter A soft cotton swab moistened with alcohol or special head cleaning fluid may also be used to clean the tape head C 30 C 60 amp C 90 tapes are recommended for use with the RX 779 Avoid using C 120 tapes as they are too thin and can easily tangle up in the tape mecha nism Before inserting a cassette tape into the unit look through the cassette window to make sure there is no excessive slack loose turns If necessary take up extra slack by inserting a pencil or similar object into the reel hub and rotating it see Figure 19 Donottamper with the tape heador place any metallic object into the cassette tape slot Avoid touching the exposed portio
32. on indicator will automatically change Right arrow gt indicates forward playback of tape and left arrow a indicates reverse playback Push the Eject button 4 to eject a loaded cassette tape This unit employs a fully automatic reverse deck mechanism When the tape reaches one end its direction reverses automatically and playback of the cassette s other side begins The Automatic Reverse Playback function will continue indefi nitely until the cassette tape is ejected or until tape mechanism is turned off Note The Fast Forward pp button and Rewind 44 button will advance or rewind according to the current playback direction regardless of whether the player is in forward or reverse playback mode OPERATION Zz pas Program Search TPS To search tape programs rapidly first press the Tape Program Search TPS button The symbol TPS will appear on the LCD Display B Press the Fast Forward pp or Fast Rewind 44 button The unit will search for the beginning of the next song Fast Fwd or the beginning of the previous song Fast Rwd C Besureto deactivate the Tape Program Search feature by pushing the TPS button again or unit will stop at each song in Fast Forward or Rewind Mode Dolby B NR This unitis equipped with a Dolby B Noise Reduction System A Toactivatethe Dolby B NR circuitry for playback of tapes encoded with Dolby B NR system press the Dolby DC button The symbol Q
33. rack Scan Shuffle Play Disc Track Search Disc Track Repeat Backward Forward Music Search Disc Track Skip 10 Track Programmable Memory PLL Quartz Synthesizer Tuning Advanced FM Optimizer VI Circuitry 30 Memory Preset Stations 18 FM 12 AM Preset Scan Automatic Station Memory Automatic Seek amp Manual Tuning Automatic FM Mono Stereo Auto Reverse Locking Fast Forward amp Rewind Auto Aligned Azimuth System Tape Program Search Dolby B Noise Reduction System Metal Tape Equalization Active Bass amp Treble Tone Controls Loudness Control Fader Control Front Rear Pre Amp Outputs 4 or 2 Speaker Outputs Removable Front Panel for maximum security Digital Clock Remote Amplifier Lead w UOIDy MOISE HEOUCHON manuractured under License Irom Dolby Laboratories Licensing Ci ation Dolby and tne double D symbol E are registered trademarks of Dolby Laboratones Licensing Corporation FEATURES BUILT IN CD CHANGER CONTROL This radio cassette head unit provides quick and conve nient manipulation of the Coustic 10 Disc changer model CC 101 or other compatible changer models Functions that this unit provides are Track Disc Scan Track Disc Repeat Track Shuffle Backward Forward Music Search Track Disc Skip and 10 track Programmable memory INTRO SCAN FOR TRACK AND DISC Intro Scan lets you scan and play the first 10 seconds of each track on a compact disc or the first 10 seconds of each disc You can use Intro Scan to
34. return to regular time display after 5 seconds Press the DISP once the digit indicating Minute will flash Press the button to advance the minute setting or press the button to bring the minute setting backwards to the desired reading INSTALLATION PREPARATION A CAUTION 2241 mo PIS aM o ALWAYS DISCONNECT THE SYSTEM FROM THE BATTERY BEFORE ATTEMPTING TO MAKE OR ALTER ANY CONNECTIONS Be sure to follow the step by step directions check all important points and have every item necessary for installation on hand Check to make sure the vehicle s battery is in good condition for proper operation of the RX 779 The RX 779 is designed for use in 12 volt NEGATIVE GROUND electrical systems ONLY Installing this product in any positive ground electrical system will seriously damage the audio system as well as void the product warranty A set of tools and hardware is required See the following TOOLS REQUIRED list Should the RX 779 be installed or used in any method other than that outlined in this manual it could reduce the unit s performance capabilities as well as void the product warranty TOOLS REQUIRED Electric drill drill bits Saber saw fine tooth metal cutting blades Razor knife Philips and flathead screwdrivers Pliers standard and needle nose Wire cutters strippers Crimping tool Electrical tape or heat shrink tube for professional finish Soldering iron and solder Nylon tie wraps
35. search for a track that precedes the current track or press the Forward Track Skip TRACK button once to search for a track that follows the current track Observe the track number on the LCD changes To advance play forward at high speed to locate a particular section of a track press and hold the Forward Disc Select DISC A button during play The LCD will indicate the time of the currently played track ata higher speed To reverse play at high speed press and hold the Backward Disc Select N DISC hutton durina nlav OPERATION Other Functions 1 Track Intro Scan The Track Intro Scan SCAN function lets you audition the first 10 seconds of each track on a disc Press the Track Scan 4 T SCAN button once to activate Track Intro Scan Observe the SCAN indicator on the dis play lighting up When it reaches your desired track press the 4T SCAN button again to cancel Intro Scan Playback of the chosen track will commence Discs Intro Scan The Disc Intro Scan 1 D SCAN function lets you audition the first 10 seconds of the first track of each disc Press the Disc Scan 1 D SCAN button once to activate Disc Intro Scan Observe the D SCAN indica tor on the display lighting up When it reaches your desired track press the 1 D SCAN button again to cancel the Intro Scan function Playback of the cho sen disc will commence Repeat Track The Repeat Track function lets you repeat the current track on the disc
36. tion played on the selected band every time the corresponding band is selected or when the tuner is powered on If the frequency band is changed from AM to FM or vice versa the tuner will automatically tune to the station last played on that frequency band Last Station Memory will continue to be stored even when the unit is turned off 6 Preset Scan C Preset Scan automatically scans stations that have been stored in the tuner s memory banks Press the Preset Scan button ASM once to initiate the scan The tuner will scan each preset station 18 in FM band or 12 in AM band stopping for five seconds before continuing on to the next station The memory number e g 1 will flash on the LCD Display To cancel Preset Scan press the ASM button again The tuner will lock on the preset station selected Note The Preset Scan function will not scan preset stations which have a weak reception D TAPE OPERATION 1 Basic Function A B Insert cassette tape into cassette tape loading slot with the open side facing right see Figure 5 Adjust volume bass treble balance and fader controls to your listening preference Figure 5 Loading Cassette Tape Select the Metal Tape Equalization 70 func tion when using metal tape Cr02 tape or Il series tape 70uS equalization To reverse tape movement direction depress both Fast Rewind and Fast Forward buttons simultaneously Both tape direction and directi
37. tored in memory P OT will be indicated on the LCD Note PROGRAM PLAY will not have any functions if no program is entered into memory D To clear the programmed memory press the P CL button for more than 2 seconds and then release CLR will flash on the LCD Press P CL button again within 6 seconds to clear all memo ries The RX 779 also features direct access to discs 1 to 6 Press and hold one of the six tuner preset buttons for more than 2 seconds will directly access the disc number pressed In case of CD changer hang up and there is no effect by pressing any CD Changer function buttons press the recessed Reset button RESET once with the tip of amp ball pen or pencilto reset the micro processor of the CD Changer This will clear all current changer func tions and programmed memories The changer will commence playback again C TUNER OPERATION Turn unit on Press Band Selector button for the desired reception band Adjust volume bass treble balance and fader con trols to the desired level Following are six methods of operation in Tuner Mode Manual Tuning A Pressthe Up Tuning TUNE or Down Tuning TUNE button to tune to the next higher or lower station on the frequency band B Activate fast UP DOWN tuning by pressing and holding either the Up TUNE x or Down w TUNE Tuning button until you reach a desired station DOWN TUNING Figure 4 Manual Tuning Automatic Seek Tu
38. ts stereo separation audio bandwidth and audio evel to guarantee the best wide band signal to noise ratio and 10 eliminate the picket fencing effects of multi path reception The end result is more dynamic range of signal processing and urther enhancement of S N C operation 30 MEMORY PRESET STATIONS with PRESET SCAN The RX 779 features 30 Selectable Preset Station Memo ries 18 FM and 12 AM with Last Station Memory This function lets you quickly and easily access up to 30 of your favorite radio stations without tuning Preset stations can be accessed by pressing the corresponding Memory button or through the Preset Scan function AUTOMATIC STATION MEMORY Automatic Station Memory lets the tuner automatically store the six strongest AM or six strongest FM stations in any given area This feature is very convenient when you are unfamiliar with stations in an area where you are traveling AUTOMATIC SEEK AND MANUAL TUNING Youcan tune in radio stations two ways either by Manual Tuning manual scanning of the frequency band or with Automatic Seek Automatic Seek Tuning searches the selected frequency bandwidth and stops when a radio station is de tected AUTOMATIC FM MONO STEREO SWITCHING The Automatic FM Stereo Mono switching circuit allows optimal tuner sound quality even under weak signal situations AUTO REVERSE The RX 779 employs a highly reliable auto reverse tape mechanism with a high quality permalloy tape head to ensur
39. ts you repeat the currently played disc To activate Disc Repeat press the 5 D RPT button once Observe the D RPT indicator on the display lighting up Press the Disc Repeat 5 D RPT button again to cancel the function Shuffle Play Shuffle Play lets you play the tracks on a disc in random sequence Toactivate Shuffle Play pressthe 2 SHUFF button once Observe the SHUFF indicator on the display lighting up Tracks on the current disc will commence playback in random sequence Press the 2 SHUFF button again to cancel the function Programming of Tracks and Discs The RX 779 is capable of storing 10 tracks into memory for programmed playback A Use the Up Down Track or Up Down Disc but tons to select the track to be sto