HarmanKardon-FL8550-cd-sm维修电路原理图.pdf

harman/kardon Model FL8550 5 Disc Compact Disc Changer Service Manual CONTENTS LASER BEAM/SAFETY PRECAUTIONS . 2 SPECIFICATIONS . . 4 CONTROLS. 5 REAR PANEL CONNECTIONS. 6 REMOTE CONTROL. . 7 TROUBLE SHOOTING GUIDE . 8 SERVICE BULLETIN H/K9901. 9 SERVICE BULLETIN H/K2000-09. 10 TECH TIP HKTT2003-06. 11 DISASSEMBLY INSTRUCTIONS . 12 EXPLODED VIEWS. 17 ADJUSTMENT PROCEDURES.21 AUDIO TEST PROCEDURE.25 CIRCUIT DESCRIPTIONS .27 I.C. SPECIFICATIONS . 35 ELECTRICAL PARTS LIST . 61 MECHANICAL PARTS LIST . 67 TROUBLESHOOTING FLOW CHARTS. 68 BLOCK DIAGRAM . 73 PCB LAYOUTS .74 SCHEMATIC DIAGRAMS . . 78 PACKING. 83 harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 11/2003 RadioFans.CN LASER BEAM SAFETY PRECAUTIONS CLASS 1 LASER PRODUCT CAUTION Invisible laser radiation when the unit is open. Do not stare into beam. CAUTION: USE OF ANY CONTROLS, ADJUSTMENT, OR PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin. This compact disc player uses a pickup that emits a laser beam. The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 1 foot away from the pickup lens when the diode is turned on. Do not look directly at the laser beam. CAUTION: Using controls and adjustment, or doing procedures other than those specified herein, may result in hazardous radiation exposure. 2 FL8550 RadioFans.CN SAFETY PRECAUTIONS This symbol is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to consti- tute a risk of electric shock to persons. This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. Caution:To prevent electric shock do not use this (polarized) plug with an extension cord, recep- tacle or other outlet unless the blades can be fully inserted to prevent blade exposure. Attention: Pour prevenir les chocs electriques ne pas utiliser cetre fiche polarisee avec un prolongateur, une prise de courant ou une au- tre sortie de courant, sauf si les lames prevent etre inserees a fond-sans en laisser aucune partie a decouvert. HANDLING LASER PICKUP The laser diode in the optical system of this player can be damaged by electrostatic discharge from your clothes or your body. Proper electrostatic grounding for service personal is required during servicing. BEFORE REPAIRING THE COMPACT DISC PLAYER Preparation Human Body Grounding: Many of the components used in this compact disc player, including the laser pickup, are sensitive to electrostatic discharge. Service personal should be grounded with an electrostatic armband (1 Mohm). Caution: Static charge on clothing does not escape through a body grounding wrist band. Be careful not to contact the pickup or electrical components with your clothing. Workbench and Tool Grounding: A properly-grounded electroconductive plate (1Mohm) or metal sheet should be fitted to the workbench surface. Tools and instruments (such as soldering irons and scopes) should be grounded to prevent AC leakage. Note: Laser diodes are so susceptible to damage from static electricity that, even if a static discharge does not ruin a diode, it can shorten its life or cause it to work improperly. WARNING To prevent fire or shock hazard, do not expose the unit to rain or moisture. 3 FL8550 RadioFans.CN GENERAL INFORMATION 1.Power ConsumptionOperating < 18W; Standby < 5W 2.Power Supply230VAC 50Hz or 120VAC 60Hz 3.Dimensions440 x 130 x 386 mm 4.Product OutlookRefer to attached diagram 5.Remote UnitRT03, harman/kardon remote code 6.Compliance RequirementCE LVD EN60065 CE EMC EN55013, EN61000-3-2, EN61000-3-3 NRTL/C FCC HDCD 7.Disc Changer Mechanism5 disc carousel; Play 1 change 4 8.Sound ProcessorHDCD 9.CD Servo SystemAuto Alignment AUDIO SPECIFICATION TypicalLimit Output Level 1KHz 0 dB(no HDCD)2.0 Vrms 1 dB Frequency Response 20Hz20KHz reference 1KHz+0-0.5 dB+0.5-1 dB THD 1KHz 0 dB 30KHz LPF0.004%0.01% THD 20Hz20KHz 0 dB 30KHz LPF0.015% S/N 1KHz 0 dB A-weighted105 dB100 dB Dynamic Range100 dB95 dB Channel Seperation 1KHz 0 dB95 dB90 dB Channel Balance 0.5 dB 1 dB De-emphasis 0.5 dB 1 dB Maximum Headphones Level 1KHz 0 dB 32 ohm Load1.5 Vp-p 2 dB Black Dot TCD725A1000 m600 m Interruption MCD-131900 m600 m Finger Print TCD725A75 m65 m Vertical Deviation MCD-1511.00 mm0.92 mm Eccentricity TCD712140 m140 m 8 cm disc TCD783Last TrackLast Track Access Time 1st to last track YEDS184 sec10 sec FL8550 74 Power Switch Status Mode Indicator Information Display Status Mode Indicator Headphones Jack Headphones Level Headphones Jack CD Drawer Open/ Close Time Button Repeat Button Intro Button Clear Button Program Button Open/ Close Random Button Pause Button Play Button Stop Button Skip Button Search Button Disc Skip Button Disc Select Buttons Information Display Remote Sensor : Press this switch to change the FL8550 from STANDBY to ON. When the unit is first connected to AC power, the will turn Amber (STANDBY mode). Press this switch to turn the unit ON; indicator will Green and the will illuminate. Press the switch again to turn the unit off, in STANDBY mode. When the FL8550 is connected to a switched AC outlet, such as those found on the back of many audio products, when power is applied it will return to whatever state it was left in previously, whether ON or STANDBY. In this case, when always left ON, further use of the power switch is not needed. : When the FL8550 is in the ON mode, this indicator will glow green. When the unit is off, the indicator will glow amber, indicating that the unit is still connected to the AC mains supply. : Connect a set of standard headphones to this jack for private listening. : Turn this knob to increase or decrease the volume level for headphones connected to the FL8550s . Note that changing this level will not change the sound level for the units main output, as that remains constant. : This drawer holds the discs that will be played. Press the button to open the drawer so that discs may be inserted. : In normal operation, this display will show the running time of the track being played. Press the button once to check the time remaining for the track in play. Press this button again to view the total play time remaining for the disc in play. : Press this button once to constantly repeat the track currently being played. Press it a second time to repeat the entire disc. : Press this button to put the FL8550 in the Intro Scan mode. When you press the button, the unit will play the first 10 seconds of each track on the disc, and then move to the next track. Press the button again to defeat the function and continue full play of the current track. : Press this button to remove tracks from a programmed sequence. Each press of the button will remove one track, starting with the last track programmed to play. : This button is used to program the playback of a disc in a particular order. : Press this button to open or close the disc drawer. DO NOT push the drawer to close it, or damage to the transport mechanism may result. : Press this button to put a disc into play, and to have all of the tracks played in a random order. : Press this button once to momentarily pause a disc. When the button is pressed again, the disc will resume play at the point it was paused. : Press this button to start the playback of a CD. If the CD drawer is open, pressing this button will automatically close the drawer. : Press this button to stop the disc currently being played. : Press either side of this button to move to the next track , or to move back to the previous track on the disc being played. : Press either side of this button to search forward or backwards through a disc to locate a particular portion of the selection of the disc being played. : Press this button to change to the next disc. If a disc position is empty, the FL8550 will automatically search for the next position that contains a disc. : Press one of these buttons to select the disc in a specific position in the CD drawer. : This display provides details about the operation of the FL8550. : The sensor behind this window receives commands from the remote control. Keep this area clear if you wish to use the FL8550 with a remote control. PowerPhonesPhones Level FL 8550 TimeRepeatIntroClearProgram Open/Close PausePlaySkip StopRandomSearch 321 Disc Skip54 MIN INTRO DISCTRACK 13245 SEC 1 6 16 11 2 7 17 12 3 8 18 13 4 9 19 14 5 10 20 15 REPEAT 1A-B RANDOM ALL 1 DISCS PROGRAM 1 1 3 3 3 2 2 2 4 4 5 5 6 6 7891011 11 11 10 15 15 16 1719 20 20 20 21 21 12 12 13 13 14 14 18 Front Panel Controls 1 7 8 9 16 17 18 19 4 FL8550 22 HDCD Indicator: This LED will light automatically when a CD with HDCD encoding is playing. 22 5 MADE IN CHINA MODEL NO: FL8550 HARMAN KARDON NORTHRIDGE CALIFORNIA, U.S.A. AC 117V / 60Hz 20W AC INPUT This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NRTL/C CSA 22.2 LR46800 UL 1270 LEFT RIGHT IN OUT AUDIO OUTPUTREMOTE DIGITAL OUTPUT WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. PRODUCT COMPLIES WITH DHHS RULES 21CFR SUBCHAPTER J, APPLICABLE AT DATE MANUFACTURED: (YCL). SERIAL NO. SHOCK HAZARD : DO NOT OPEN. AVIS:RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR. SHOCK HAZARD : DO NOT OPEN. AVIS:RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN RISK OF ELECTRIC SHOCK DO NOT OPEN 24531 Rear Panel Connections Connect this plug to an AC outlet. If the outlet is switch is controlled, make certain that the switch is in the ON position. Connect this jack to the coaxial digital input of an external digital-to-analog converter for direct access to the digital signals of the FL8550. DO NOT connect this jack to the standard audio inputs of any device. Connect the output of a remote infrared sensor or the remote control output of another compatible Harman Kardon product. This will enable the remote control system to operate even when the front panel is blocked. It will also allow use of the FL8550 with optional, external control systems. Connect this jack to the input of another compatible Harman Kardon remote controlled device to have the remote sensor on the FL8550 provide signals to other products. Connect these jacks to the CD audio inputs of your receiver, surround processor or preamplifier. AC Power Cord Coaxial Digital Output Remote Control Input Remote Sensor Remote Control Output Fixed Audio Outputs 21 1 2 4 5 3 5 FL8550 6 . Press this button to open or close the disc drawer. The drawer may also be closed by pressing the button . DO NOT push the drawer, as damage to the transport mechanism may result. Press one of these buttons to select the disc in a specific position in the CD drawer. Press these buttons to select a specific track on a disc. The FL8550 will immediately search for the track and begin to play it. For tracks 1 through 10 on a disc, you need only press the desired number. For tracks 10 and above, press the button to select the first digit of the track number, and then press the second digit from these numeric buttons. These buttons are also used to enter track numbers into the memory for pre-programmed play lists. Press this button to select the first digit of a track number above 10. Each press of the button increases the first digit one increment. Press it once to start accessing tracks 10 through 19 twice to start accessing tracks 20 through 29, and so forth. For example, to select track 22, press the button twice, and then press the button . Press these buttons to search forward or backwards through a disc to locate a particular portion of the selection being played. Press one of these buttons to move to the next track , or to move back to the previous track on the disc being played. Press this button to stop the disc currently being played. Press this button to start the playback of a CD. If the CD drawer is open, pressing this button will automatically close the drawer. Press this button to put a disc into play, and to have all of the tracks played in a random order. Press this button once to momentarily stop a disc. When the button is pressed again, the disc will resume play at the point it was stopped. Press this button to put the FL8550 into the Intro Scan mode. When you press this button, the unit will play the first 10 seconds of each track on the disc, and then move to the next track. Press the button again to defeat the function and continue full play of the current track. Press this button to select the time display. In normal operation, the display will show the running time of the track being played. Press the button once to check the time remaining for the track in play. Press the button a third time to view the total play time remaining for the disc in play. Press this button to remove tracks from a programmed sequence. Each press of the button will remove one track, starting with the last track programmed to play. This button is used to program the playback of a disc in a particular order. Press this button once to constantly repeat the track currently being played. Press it a second time to repeat the entire disc. Press this button to change to the next disc. If a disc position is empty, the FL8350 will automatically search for the next position that contains a disc. Open/ Close Button: Play Disc Select Buttons: Numeric Buttons: 10+ +10 Button: +10 2 Search Buttons: Skip Buttons: Stop Button: Play Button: Random Button: Pause Button: Intro Button: Time Button: Clear Button: Program Button: Repeat Button: Disc Skip Button: PROGRAM321 456CLEAR TIME987 45 DISC SKIPREPEAT 10+10INTRO RANDOMSEARCH SKIP DISC NO. 123 OPEN/ CLOSE 1 2 4 5 6 3 7 8 9 10 11 12 13 14 15 16 FL 8550 Remote Control Functions 2 4 4 5 6 3 3 14 1 8 7 8 9 10 11 12 13 14 15 16 6 FL8550 7 Troubleshooting Guide 16 SYMPTOM No lights on front panel Remote does not appear to operate Front panel lights, but CD does not play Play indicator lights, but no sound is heard Sound skips or stutters during play Sound is continually distorted CAUSE No AC power Main Power Switch turned off Weak batteries Blocked sensor Disc upside down Moisture