Gemini-CDX802-cd-sm维修电路原理图.pdf

Page 1SERVICE MANUALCDX-802Professional CD PlayerCONTENTS:Connections & Operations:.Page 2-4Specifications:.Page 4Parts Lists:.Page 5-7PCBs:.Page 8-11Schematics:.Page 12-19Gemini Sound Products Corp.120 Clover Place P.O. Box 6928Edison, NJ 08818-6928732-738-9003 (Phone) 732-738-9006 (Fax)RadioFans.CN 收音机爱 好者资料库(2)35101986112322?42025152113 181271714 16912312312312312341234123412341234123412341234RL21234567123456712345671234567123456712345671234567OUTPUT 2DIGITAL OUTPUT 2112345671234567123456712345671234567123456712345671234123412341234OUTPUT 1RL12341234123412341234123412341234AC INFUSE 250V, FO. 5ALDIGITAL OUTPUT 1CONNECT TOREMOTE CONTROL 1CONNECT TOREMOTE CONTROL 2230V50HZ115V60HZ124FUSE 250V, F1 AL2RadioFans.CN 收音机爱 好者资料库(3)INTRODUCTION:Congratulations on your purchase of a Gemini CDX-802 CD Player.Your state-of-the-art professional CD Player is backed by a three yearwarranty that excludes lasers, which are covered by a separate oneyear warranty. Prior to use of this unit, we suggest you carefully readthe following intructions.Your Gemini CDX-802 CD Player comes equipped with ADCS (AutomaticDisc Calibration System), a unique state-of-the-art feature. CDs areproduced by a variety of manufacturers and recorded by many differentprofessional companies as well as the do-it-yourselfers at home. Therefore,all CDs do not play the same. The ADCS automatically adjusts the laser inyour CDX-802 CD Player for each individual CD you insert into the tray, to giveyou the best possible performance for every CD you play regardless of how itwas manufactured or how it was recorded. With this exclusive system youalways get consistent and reliable performance as well as exceptionalsound quality every time you play a CD. any CD.CAUTIONS:1. Do not use this CD player at temperatures below 41F/5C or higher than95F/35C.2. The apparatus should not be exposed to dripping or splashing, and no objectsfilled with liquids such as vases should be placed on the apparatus.3. Place the unit in a clean and dry location.4. Do not place the unit in an unstable location.5. When disconnecting the power cord from an AC outlet, always grasp it bythe plug. Never pull the power cord.6. To prevent electric shock, do not remove the cover or the bottom screws.There are no user serviceable parts inside. Please refer servicing to aqualified technician.7. Do not use chemical solvents to clean the unit.8. Keep the laser pickup clean by keeping the tray closed.9. Keep this manual in a safe place for future reference.SAFETY CERTIFICATIONS:Laser Diode PropertiesMaterial: Ga - Al - AsWavelength: 755 - 815 nm (25 C)Laser Output: Continuous Wave, max. 5mWCAUTIONSLINE VOLTAGE SELECTION:The Gemini CDX-802 CD Player is a dual voltage unit operating at115 or 230 volts. Be sure to set the proper voltage:1. Place the head of a screwdriver in the center of the VOLTAGESELECTOR (1) switch found on the rear panel.2. Slide the switch to 115 or 230 volts.3. Do not force or twist the switch. Excessive force may cause damage.If the switch does not move smoothly, contact a qualified technician.CONNECTIONS:1. Plug one end of a set of RCA connectors into the two LINE OUTPUTJACKS (2) on the back of your CD unit.2. Plug the other end of the RCA connectors into any of the availableline level input jacks on your mixer. If you are playing the CDX-802through a receiver, you can plug the RCA connectors into the CD orAUX INPUT JACKS located on the receiver. If there are no CD or AUXINPUTS, use any line level (not phono) input.FUNCTIONS:POWER SWITCH: After making sure the VOLTAGE SELECTOR (1)switch is properly set, plug the unit in and press the POWER (3) button.The unit will turn on. Pushing POWER (3) a second time turns the unit off.DISC TRAY: The DISC TRAY (5) is where the CD is held during loading,unloading and playback. Pressing OPEN/CLOSE (4) opens or closesthe tray. The DISC TRAY (5) holds both 12 cm and 8 cm CDs andautomatically closes after remaining open for three minutes.NOTE: TRAY WONT OPEN WHEN THE CDX-802 IS IN THE PLAY MODE.OPEN/CLOSE: Press OPEN/CLOSE (4) to load or remove a CD from theDISC TRAY (5).DISPLAY: The DISPLAY (6) shows total tracks; track number; pitch value;single-auto cue; continue (continuous play); and three different timedisplays: track time elapsed, track time remaining and total time remainingon disc. Time is measured in minutes, seconds and frames.PLAYBACK DISPLAY: The PLAYBACK DISPLAY (7) displays theplay time remaining for each track. The display flashes slowly whenthe track has 15 seconds remaining and pulses rapidly when playtime is down to five seconds.PLAY/PAUSE : Each press of PLAY/PAUSE (8) causes the operationto change from PLAY to PAUSE or PAUSE to PLAY.TRACK SKIP : The TRACK SKIP (9) buttons let you selectthe track to play.SEARCH JOG WHEEL: The SEARCH JOG WHEEL (10) has twofunctions. Use the SEARCH JOG WHEEL (10) to make fine adjustmentsin PAUSE mode. Use the SEARCH JOG WHEEL (10) to bend the pitchfor precise synchronization in PLAY mode.SEARCH DIAL: Use the SEARCH DIAL (11) to select the scanningdirection and speed of your CD. Turning the dial in a clockwisedirection scans forward while a counter-clockwise turn scansthe track in reverse. Scan speed increases as the dial is turned.STOP : The STOP (12) button ends CD play.TIME: The TIME (13) button switches the time display between thethree available choices listed under DISPLAY (6).FLY CUE: The FLY CUE (14) function lets you set cues “on the fly” with thepress of a button. Press FLY CUE (14) when the disc reaches the musicallocation you wish to make your cue or start point. The cue point is nowprogrammed. Press CUE (15) to return to the cue point. Press PLAY/PAUSE(16) and the unit starts from the pre-programmed spot.CUE: With the unit in the PLAY mode (PLAY/PAUSE LED is green) andafter the cue point has been programmed, pressing CUE (15) willcause the CD player to enter the PAUSE mode (green PLAY/PAUSELED blinks) at the programmed cue point (the CUE LED glows yellow).Holding down the CUE (15) button changes the function to PREVIEWand starts the CD from the programmed cue point. Releasing the CUEbutton (15) will return the CD laser to the preset cue point.LOOP: After a cue point is memorized, pressing the B/EXIT (16) button inPLAY mode, (the CUE LED blinks yellow), repeats the section betweenthe cue point and the point where the B/EXIT (16) button was pressed.Press the B/EXIT (16) button again or pause play to exit the repeatingplay.BOP/RELOOP: The BOP/RELOOP (17) button has two functions. Toreturn to a previously saved loop from normal play, press the BOP/RELOOP (17) button after saving the loop. To return to and instantly playfrom a previously saved cue point, press the BOP/RELOOP (17)button after setting the cue point (if you do not have a loop saved).SINGLE-AUTO CUE/CONTINUOUS: Pressing SINGLE-AUTO CUE/CONTINUOUS (18) activates the AUTO CUE FUNCTION. The AUTOCUE causes the CD to pause at the recorded beginning of the next trackand allows you to start play into the next song with no space inbetween songs. Pressing SINGLE-AUTO CUE/CONTINUOUS (18) asecond time will activate the CONTINUOUS function. This causes theCD to repeat play continuously until SINGLE-AUTO CUE/CONTINUOUS(18) is pressed a third time to deactivate the CONTINUOUS function.PITCH: Pushing the PITCH button (19) activates the PITCH section of theunit (PITCH LED glows red). The pitch of the CD will change accordingto the position of the PITCH SLIDE (20).PITCH BEND : Pushing the PITCH BEND (21) buttons willautomatically raise the pitch up to +4% or lower the pitch down to-4% from the existing setting. Releasing the buttons returns pitch to theoriginal setting. Use this function to match the pitch bend when mixingfrom one song to another.(4)4%, 8% and 16%: Use the 4%, 8% and 16% (22) buttons to assign thepercent the pitch control slide will have. The 4% button will assign +/-4% to the PITCH CONTROL SLIDE (20). The 8% button will assign +/-8% to the PITCH CONTROL SLIDE (20). The 16% button will assign +/-16% to the PITCH CONTROL SLIDE (20). The PITCH (19) must be ONfor the 4%, 8% and 16% (22) buttons to work.INSERT: Set a cue point (using the CUE (15), FLY CUE (14) or SEARCHJOG WHEEL (10). From this cue point you will be able to sample up to10 seconds of a musical phrase or sound. When you push and hold theINSERT (23) button you will be able to insert that phrase or sound atany spot in the music that is currently playing, replacing what is playingin that spot with up to 10 seconds of the piece you have sampled.When you release the INSERT (23) button the music will continueuninterrupted.NOTE: YOU CAN ONLY USE YOUR “SAMPLE” WITH YOUR CURRENTCD. ONCE YOU OPEN THE DISC TRAY TO CHANGE CDS, YOUR“SAMPLE” WILL BE AUTOMATICALLY DELETED.DIGITAL OUTPUT JACK: Connecting any type of DAT, MD, HARDDRIVE, or other such items which accept digital signals to the BNC(24) output connector on the rear panel of your CDX-802 allows youto record a digital signal from CD.OPERATING INSTRUCTIONS:1. Make sure that the VOLTAGE SELECTOR SWITCH (1), found on therear panel, is set for the proper voltage. Plug the unit in and press thePOWER SWITCH (2). The unit is ON. Pushing POWER (1) a secondtime turns the unit OFF.2. Press OPEN/CLOSE (4) and place a CD in the DISC TRAY (5). PressOPEN/CLOSE (4) again. The tray will close.3. Push TRACK SKIP (9) to select the track you wish to play.4. Press PLAY/PAUSE (8) and the unit will instantly play.FLY CUE & CUE INSTRUCTIONS:The FLY CUE (14) function lets you set cues “on the fly” with the pressof a button. Press FLY CUE (14) when the disc reaches the musicallocation you wish to make your cue or start point. The cue point is nowprogrammed. Press CUE (15) to return to the cue point. Press PLAY/PAUSE (8) and the unit instantly starts from this pre-programmed spot.AND/OR:1. To pre-program a cue point (the spot on a CD at which you want play tostart) select the proper track and push PLAY/PAUSE (8) so the unitenters the PLAY mode (PLAY/PAUSE LED glows green). When the CDreaches the approximate musical spot you wish to make your cue, pushPLAY/PAUSE (8) so the unit enters the PAUSE mode (PLAY/PAUSE LEDblinks). Move the SEARCH JOG WHEEL (10) forward or in reverse untilthe precise spot at which you want CD play to begin is located. PushPLAY/PAUSE (8). The cue point is now programmed. Press CUE (15) toreturn to this pre-programmed cue point at any time. Push PLAY/PAUSE(8) and the unit will instantly play from the pre-selected spot.2. To fine tune your pre-programmed cue point, push PLAY/PAUSE (8)so the unit enters the PLAY mode. Push the CUE button (15) and theCD will return to the cue point you programmed in step #1 and begin playfrom that point. If you decide this cue or starting point is okay, leave theunit alone until you are ready to play.3. If, however, the selected spot is not exactly where you want it, pushthe CUE (15) button while the CD is playing and the disc will return tothe pre-programmed cue point. Locate the exact spot on the CD atwhich you want play to start by turning the SEARCH JOG WHEEL (10).Push PLAY/PAUSE (8) to pre-program this new cue point. Press theCUE (15) button to pause play at the new cue point. Push PLAY/PAUSE (8) at any time and the unit will play from the pre-selected spot.ROBO START INSTRUCTIONS:IN SINGLE-AUTO CUE MODE:Use ROBO START (25) in SINGLE-AUTO CUE MODE to alternate playbetween the CDX-802s two CD players (one track from one side, thenone from the other). In SINGLE-AUTO CUE MODE play startsimmediately with no blank or “dead” space. ROBO START (25) causesone side of the CD player to play when the other side is paused.1. Engage SINGLE-AUTO CUE MODE with the SINGLE-AUTO CUE/CONTINUOUS (18) button .2. Press the ROBO START (25) button to activate ROBO START (25). Playwill alternate between the two CD players. At the end of a track, theplaying side pauses and the other CD deck plays a track. At the end ofthis track, the playing side pauses and the first CD deck resumes play.IN CONTINUOUS MODE OR DURING NORMAL PLAY:If you use the ROBO START (25) function without SINGLE-AUTO CUEMODE (in CONTINUOUS MODE or during normal play), CD deck play doesnot alternate automatically. The PLAY/PAUSE (8) button must be pressedon the playing deck for the second deck to play.1. During normal play, set a cue point on the second CD deck.2. Press the ROBO START (25) button to activate ROBO START.3. Press PLAY/PAUSE (8) button on the playing side to start playfrom the cue point on the other CD deck.NOTE: PAUSING PLAY IN THE MIDDLE OF A TRACK CAUSES THEOTHER CD DECK TO PLAY. WHEN THE NEW TRACK ENDS, PLAYRESUMES ON THE FIRST CD PLAYER FROM THE POINT AT WHICHIT WAS PAUSED.TROUBLESHOOTING: If a disk will not play, check to see that it was loaded correctly (label side up)and that the CD unit is on a flat, level, stable surface. Check disc for dirt,scratches, spills, etc. If the disc spins but there is no sound, check the cable connections. If they areokay, check your amplifier or receiver. If the CD skips, check it for dirt, oil or scratches. Do not assumethat the CD player or laser is defective. Many CDs are recorded “out of spec” andskip on most or all CD players. Before sending the unit to an authorized Geminiservice technician, insert a disc that plays properly in another unit.SPECIFICATIONS:GENERAL:Type.Compact Disc PlayerDisc Type.Standard Compact discs (12 cm & 8 cm)Time Display.Track Elapsed, Track Remain, or Total remainInstant Start.Within 0.015 secondsTrack Selection.1 to 99 TracksInstallation.19 eachDimensions.19” x 3.5” x 10”Weight Per Unit.9.5 lbs.AUDIO SECTION:Quantization.16 Bit Linear/Channel, 3 Beam LaserOversampling Rate.8 TimesSampling Frequency.44.1 kHzFrequency Response.20 Hz to 20 kHzDigital Output.IEC958Total Harmonic Distortion.Less Than 0.05%Signal to Noise Ratio.100 dBDynamic Range.96 dBChannel Separation.90 dB (1 KHz)Output Level.1.9 Volts R.M.S.Power Supply.AC 115/230V, 60/50 HzSpecifications and design are subject to change without notice for purpose of improvement.NOTE: IF YOU PRESS OPEN/CLOSE (4) WHEN A DISC IS BEING READ AFTER LOADING, THEDISC TRAY WILL PAUSE, FOR A MOMENT BEFORE OPENING.Page 5PARTS LIST:ITEM1234567891011121314151617181920212223242526272829303132333435 PART NUMBER012-053031-041021-605021-606003-427003-428002-572003-141003-144002-720148-316003-738003-739003-711002-579002-575002-576003-741159-227099-252099-253153-212196-165099-014099-214190-062160-045110-172A111-046A121-002A111-057262-396262-397262-398262-286QTY1111221222122142212222111111442061122ENGLISH NAMEPANEL CONTROLCOVERTOP ANGLEBOTTOM ANGLEPLATE LAMPLAMP HOLDERKNOB PUSH (CA)KNOB ROTARY (A)KNOB ROTARY (B)KNOB SLIDEMANE PLATE (SMALL)VR INLAY (CA)PR OTECTOR INLAYHOLDER LED 3 (7mm)KNOB PUSH KEY ASSY (A)KNOB PUSH KEY ASSY (B)KNOB PUSH KEY ASSY (C)PUSE KEY INLAY (CA)VR DUST PROOF CLOTH (CA)LAMP PAPERLAMP LABELPOLYFORMSERIAL NO:LABELLABEL- MADE IN TAIWANLABEL- MADE IN CHINASILICON GELPE BAG 160650mmBAND-HEAD TAPPING SCREW/TWIN SCREW