HarmanKardon-FL8370-cd-sm维修电路原理图.pdf

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1、 harman/kardon Model FL8370 5 Disc Compact Disc Changer SERVICE MANUAL CONTENTS LASER BEAM SAFETY PRECAUTIONS .2 OTHER PRECAUTIONS . 3 SPECIFICATIONS . 4 FRONT PANEL CONTROLS. . . 6 REAR PANEL CONNECTIONS. 7 REMOTE CONTROL FUNCTIONS.8 TEST PROCEDURE. 9 BLOCK DIAGRAM .11 DISASSEMBLY PROCEDURE.12 GENE

2、RAL UNIT EXPLODED VIEW I, II . .17 CIRCUIT DESCRIPTION. . . 23 BASIC TROUBLESHOOTING 30 DETAILED TROUBLESHOOTING .31 SEMICONDUCTOR IDENTIFICATION. 37 ELECTRICAL PARTS LIST . 68 MECHANICAL PARTS LIST . 80 PRINTED ClRCUlT BOARDS . . 83 SCHEMATIC DIAGRAMS. 92 PACKAGE .95 harman/kardon, Inc. 250 Crosswa

3、ys Park Dr. Woodbury, New York 11797 Rev0 11/2000 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

4、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

5、 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. RadioFans.CN SAFETY PRECAUTIONS

6、 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 main

7、tenance (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

8、 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

9、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

10、 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. Wor

11、kbench 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 el

12、ectricity 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. RadioFans.CN FL8370 ? ? ? ? ?!?#?$?%1? ?(+?+ ? ?+?0?!?7?0? ?()?(+?+?A,?B;? ?5?/?()C?()?B?;?B?

13、&;?!0?=?=? +?/?!?=?0?B;?;? ?5?/?C?()AB;?B;? 2(+?C?()?()?A?D?D 4 ? ? ? ?.?+?2?+?*?*? :?2?+?*=?*? ?!?2?+?*?*?+6?!?6?# ?2;?$?*?1?!? 1? FL8370 5 Power Switch Status-Mode Indicator Information Display Status-Mode Indicator Status Mode Indicator Headphones Jack Headphones Level Control Headphones Jack CD

14、Drawer Open/ Close Time Button Repeat Button Intro Button Clear Button Program Button Open/ Close Button 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 apply power to the Fl837

15、0. When the FL 8370 is first turned on by pressing this switch, the will turn green, and the will illuminate. Press the switch again to turn the unit off; the will turn amber, indicating that the unit is in a Standby mode. When the FL 8370 is connected to a switched AC outlet, such as those found on

16、 the back of many audio products, it will return to the Standby mode when power is applied to the switched outlet without any further press of the switch. : When the Fl8370 is in the ON mode, this indicator will glow green. When the unit is off, the indicator will glow amber, indicating that the uni

17、t 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 FL8370s . Note that changing this level will not change the sound level for the units main

18、 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. : Press this button to select the time display. In normal operation, this display will show the running time of the track being played. Press the b

19、utton 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 p

20、ut the Fl8370 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

21、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 t

22、he 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

23、 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 one side of this button to move to the next track or the other side of the button to move back to the previous track o

24、n the disc being played. : Press one side of this button to search forward or the other side of the button to search backwards through a disc to locate a particular portion of the disc being played. : Press this button to change to the next disc. If a disc position is empty, the FL8370 will automati

25、cally 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 FL 8370. : The sensor behind this window receives commands from the remote control. Keep this a

26、rea clear if you wish to use the FL 8370 with a remote control. HDCD Indicator: This LED will light automatically when a CD with HDCD encoding is playing. No further action is needed to enjoy the benefits of HDCD. PowerPhonesPhones Level FL 8370 TimeRepeatIntroClearProgram Open/Close PausePlaySkip S

27、topRandomSearch 321 Disc Skip54 1324567891011 11 10 15 16 1719 20 20 2221 21 22 12 12 13 13 14 14 15 18 Front Panel Controls 1 3 3 2 2 4 5 6 11 20 7 8 9 16 17 18 19 FL8370 6 MADE IN CHINA MODEL NO: FL8370 HARMAN KARDON NORTHRIDGE CALIFORNIA, U.S.A. AC 117V / 60Hz 20W AC INPUT This device complies wi

28、th 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. CUS CAN/CSA-C22.2 No.1-96 LR46800 UL 1270 LEFT

29、RIGHT INOUT 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 CH

30、OC 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 controlled, make certain that t

31、he switch is in the ON position. Connect this jack to the coaxial-digital input of a digital audio/ video receiver or an external digital-to-analog converter for direct access to the digital signals of the FL8370. DO NOT connect this jack to the standard audio inputs of any device. Connect this jack

32、 to the input of anther compatible Haman Kardon remote controlled device to have the remote sensor on the Fl8370 provide signals to other products. Connect this output of a remote infrared sensor or the remote control output of another compatible Harman Kardon product. This will enable the remote co

33、ntrol system to operate even when the front panel is blocked. It will also allow use of the Fl8370 with optional, external control systems. Connect these jacks to the analog CD audio inputs of your receiver, surround processor or preamplifier. AC Power Cord Coaxial Digital Output Remote Control Inpu

34、t Remote Control Output Remote Sensor Fixed Audio Outputs 21 1 2 4 5 3 FL8370 CLASS 1 LASER PRODUCT are registered trademarks of Pacific Microsonics, Inc. and High Definition Compatible Digital HDCD 7 . Press one of these buttons to select the disc in a specific position in the CD drawer. Press thes

35、e buttons to select a specific track on a disc. The FL8370 will immediately go to the track and begin to play it. These buttons are also used to enter track numbers into the memory for preprogrammed-play lists. Press these buttons to search forward or backwards through a disc to locate a particular

36、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

37、 this button will automatically close the drawer. Press this button to play all of the tracks on a disc in a random order. Press this button once to momentarily pause a disc. When the button is pressed again, the disc will resume play from the point at which it was paused. Press this button to put t

38、he FL8370 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 once to continuously repeat

39、 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 FL8370 will automatically search for the next position that contains a disc. Disc Select Buttons: Numeric Buttons: Search Buttons: Skip

40、Buttons: Stop Button: Play Button: Random Button: Pause Button: Intro Button: Repeat Button: Disc Skip Button: Clear Button: Program Button: Time Button: Press this button to remove tracks from a programmed sequence. Each press of the button will remove one track, starting with the last track progra

41、mmed to play. This button is used to program the playback of a disc in a particular order. 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 again to view the total play tim

42、e remaining for the disc in play. Remote Control Functions 2 4 6 8 10 9 12 11 4 1 3 5 7 8 13 14 FL8370 321 456REPEAT INTRO987 345 DISC SKIP 0PROGRAMTIMECLEAR RANDOMSEARCH SKIP DISC NO. TRACK NO. 12 FL 8370 10 1 3 4 5 2 6 7 8 9 11 10 12 13 14 8 FL8370 Audio Characteristics Test Procedure Test Equipme

43、nt 1. 3346 CD Player Evaluating Filter x 2 (NF Electronic Instrument) 2. VP7722 Panasonic Audio Analyzer 3. Sony YEDS18 Test CD disc Procedure Equipment Setup 1. The audio output of the CD player under test is connected to the CD filter L ? 8? ? ?/?1?(*? ?1?!,?(8? ? ?!?%?%?$?!? ?/?%?# ?%?$?!? ?%? ?%

44、?$?!? ?)? ? ? ? ?%?$(! ? ?/?%! ?)?1?%?:?0?$?!3? FL8370 18 9600-505009-001 ?/?%! ?)?1?:? ?/?%! ?)?1?:? ?/?%! ?)?1?:?=? ?,?*?0? ?$?$.?.)?8%? ?$?.)?*?)?*? ?;*?0? ?!%?3?)?)? ?$?!%?3? ?)?)?.)?*? L = Hardware(3) 25MUTEINMute Control(3) 26MD/FSSINMode Data/Sampling Rate Range Select(3) 27MC/DEMINMode Clock

45、/De-Emphasis Select(3) 28ML/I2SINMode Latch/Input Format Select(3) NOTES: (1) Schmitt Trigger input. (2) CMOS logic level input. (3) Schmitt Trigger input with pull-up resister. (4) Schmitt Trigger input with pull-down resistor. PIN ASSIGNMENTSPIN CONFIGURATION ELECTROSTATIC DISCHARGE SENSITIVITY Th

46、is integrated circuit can be damaged by ESD. Burr-Brown recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not