HarmanKardon-FL8385-cd-sm维修电路原理图.pdf

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1、 harman/kardon Model FL8385 5 Disc Compact Disc Changer SERVICE MANUAL CONTENTS LASER BEAM SAFETY PRECAUTIONS2 OTHER PRECAUTIONS . 3 SPECIFICATIONS . 4 FRONT PANEL CONTROLS. . . 5 REAR PANEL CONNECTIONS. 8 REMOTE CONTROL FUNCTIONS.9 BASIC TROUBLESHOOTING GUIDE.10 GENERAL UNIT EXPLODED VIEW . . .11 5

2、 CD MECHANISM EXPLODED VIEW .12 BLOCK DIAGRAM .13 TEST PROCEDURE. 14 CIRCUIT DESCRIPTION. . . 16 DETAILED TROUBLESHOOTING 20 SEMICONDUCTOR IDENTIFICATION. 26 MECHANICAL PARTS LIST . 49 ELECTRICAL PARTS LIST . 51 PRINTED ClRCUlT BOARDS . . 60 SCHEMATIC DIAGRAMS. 64 PACKAGE .70 harman/kardon, Inc. 250

3、 Crossways Park Dr. Woodbury, New York 11797 Rev1 3/2004 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 RES

4、ULT 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,

5、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. FL8385 FL8385 harman/kar

6、don harman/kardon 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 use

7、r 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 b

8、lade 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 d

9、iode 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

10、 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

11、 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 d

12、iodes 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. FL8380 FL8385 FL8385 harman/kardon harman/ka

13、rdon RadioFans.CN TECHNICAL SPECIFICATIONS 15 FL8385 TECHNICAL SPECIFICATIONS Signal Format Sampling Frequency 44.1kHz HDCD Processing Burr-Brown PCM1732 D/A Conversion Dual 18-Bit Oversampling 8 Times Discrete Analog Output Section Error Correction CIRC System Frequency Response 20Hz 20kHz +0, 1dB

14、THD (1KHz) 0.02% 1kHz (30KHz Filter) THD) (1KHz) 0.02% 1kHz (No Filter) THD 20Hz20KHz 0dB 97dB S-Noise Ratio 0dB A-weighted (A Filter) 97dB Channel Separation 1KHz 0dB (30KHz Filter) 80dB Channel Balance 0.5dB De-emphasis (5KHz,16KHz) 0.5dB Line-Level Output (no HDCD) 1.0 Vrms 1dB Line-Level Output

15、(HDCD Output) 2.0 Vrms 2dB Digital Output Coax Headphone output specification under 32 ohm load Maximum Headphone Output Level 1KHz 0dB 1.5Vp-p Frequency Response (2020KHz) 1dB THD 2020KHz 0dB (30KHz Filter) 0.1% Test Disc Specification Typical Limit Black Dot TCD 725B 1000um 600um Interruption MCD-

16、131 900um 600um Finger print 75um 65um Vertical Deviation MCD-151 0.92mm 0.92mm Eccentricity TCD 712 40um 140um 8cm test disc TCD 783 Last Track Last Track Access Time 1st to last track YEDS18 4 sec 10 sec General Power Requirement 120V/60Hz Power Consumption 20 Watts Dimensions Height 5.1 (129mm) W

17、idth 17.3 (440mm) Depth 15.2 (386mm) Weight 14.5 lb (6.6kg) Depth measurement includes knobs and buttons. Height measurement includes feet and chassis. All features and specifications are subject to change without notice. FL8385 FL8385 harman/kardon harman/kardon 4 FRONT-PANEL CONTROLS 1 Power Switc

18、h: Press this switch to apply power to the FL 8385.When the FL 8385 is first turned on by pressing this switch, the Status Mode Indicator 2 will turn blue, and the Information Display # will light. Press the switch again to turn the unit off; the Status Mode Indicator 2 will turn amber, indicating t

19、hat the unit is in a Standby mode.When the FL 8385 is connected to a switched AC outlet, such as those found on 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. 2 Status Mode Indicator: When the

20、FL 8385 is in the On mode, this indicator will glow blue.When the unit is off, the indicator will glow amber, indicating that the unit is still connected to the AC main supply. 3 Headphones Jack: Connect a set of standard headphones to this jack for private listening. 4 Headphones Level Control: Tur

21、n this knob to increase or decrease the volume level for headphones connected to the FL 8385s Headphones Jack 3. Note that changing this level will not change the sound level for the units main output, as that remains constant. NOTES: Always adjust the headphones level to the minimum possible to avo

22、id the possibility of damage to the lis- teners hearing from unwanted white noise or other transient noises. When inserting a disc, wait until the FL 8385 has recognized the disc before using headphones in order to avoid the possibility of hearing potentially damaging white noise. 5 CD Drawer: This

23、drawer holds the discs that will be played. Press the Open/Close Button 6 to open the drawer so that discs may be inserted. 6 Open/Close Button: 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. 7 Search Button: Pr

24、ess 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. 8 Skip Button: Press one side of this button to move to the next track or the other side of the button to move back to the previou

25、s track fi fi on the disc being played. 9Stop Button: Press this button to stop the disc cur- rently being played. ) Play/Pause Button: 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 once during p

26、lay to momentarily pause a disc. When the button is pressed again, the disc will resume play at the point it was paused. ! Disc Skip Button: Press this button to change to the next disc. If a disc position is empty, the FL 8385 will automatically search for the next position that con- tains a disc.

27、Disc Select Buttons: Press one of these buttons to select the disc in a specific position in the CD drawer. # Information Display: This display provides details about the operation of the FL 8385. $ Remote Sensor: The sensor behind this window receives commands from the remote control. Keep this are

28、a clear if you wish to use the FL 8385 with a remote control. 23 45 7 8 9)!#$ 61 FL 8385 PowerPhonesPhones Level PLAY/PAUSE 123 45DISK SKIP STOP SEARCHSKIP FRONT-PANEL CONTROLS FRONT-PANEL CONTROLS 5 5 NOTE: To make it easier to follow the instructions that refer to this illustration, a larger copy

29、may be downloaded from the Product Support section for this product at . 1 Power Switch 2 Status Mode Indicator 3 Headphones Jack 4 Headphones Level Control 5 CD Drawer 6 Open/Close Button 7 Search Button 8 Skip Button 9 Stop Button ) Play/Pause Button ! Disc Skip Button Disc Select Buttons # Inform

30、ation Display $ Remote Sensor FL8385 FL8385 harman/kardon harman/kardon 5 FRONT-PANEL INFORMATION DISPLAY 6 FRONT-PANEL INFORMATION DISPLAY ABDEF N LJHR Q P C GO MKI A Random Indicator B Sequential Indicator C Disc Number Display D Track Number Display E Time Display F Remaining Tracks Display G Tot

31、al Time Indicator H Program Indicator I Remaining Time Indicator J Intro Scan Indicator K Loaded Disc Indicators L HDCD Indicator M Repeat Indicator N Disc Mode Indicator O Single Mode Indicator P Pause Indicator Q All Mode Indicator R Play Indicator NOTE: To make it easier to follow the instruction

32、s that refer to this illustration, a larger copy may be downloaded from the Product Support section for this product at . A Random Indicator: This indicator will light when any of the three Random modes described on page 12 have been selected. B Sequential Indicator: This indicator will light when t

33、he Random,All, Sequential playback mode has been selected.The FL 8385 will play all tracks on the current disc in random order, then advance to the next available disc and play all of its tracks in random order, and so on until all discs have been played once. C Disc Number Display: The current disc

34、 number will be displayed here. D Track Number Display: The current track number will be displayed here. E Time Display: This indicator will display either the total running time of the disc currently playing, the total running time of the track currently playing or the time remaining on the current

35、ly playing disc. See page 12 for more information on the Time Display E. F Remaining Tracks Display: When a disc is first selected, the numbers for each of the tracks on that disc will light, up to 16 tracks. During playback the current track number will flash, and all remaining track numbers will r

36、emain lit.The numbers of the preceding tracks will go dark.When playback is stopped, all of the track numbers available on the current disc will light, even if they were previously played. If a disc contains more than 16 tracks, the higher-numbered tracks may be played and their num- bers will appea

37、r in the Track Number Display D when selected, but those numbers will not appear in the Remaining Tracks Display F. G Total Time Indicator: This indicator will light when the total time on the current disc has been selected for display. See page 12 for more information on the time display function.

38、H Program Indicator: This indicator will light when the FL 8385 has been placed in programmed-play mode. It will remain lit while a play list is being pro- grammed and during playback of a play list. I Remaining Time Indicator: This indicator will light when the remaining time on the current disc or

39、 in the current track has been selected for display. See page 12 for more information on the time display function. J Intro Scan Indicator: This indicator will light when the Intro Search mode has been selected as described on page 13.This mode enables you to search for a particular track by preview

40、ing the first 10 seconds of each track of each loaded disc, and then selecting the desired track. K Loaded Disc Indicators: When the unit is turned on, the indicators for all disc positions will light, with the current disc indicated by a flashing red ring.As the FL 8385 circulates through all disc

41、positions, the indi- cators for positions found to be empty will go out.This display will refresh any time the CD Drawer 5 is opened. FL8385 FL8385 harman/kardon harman/kardon 6 FRONT-PANEL INFORMATION DISPLAY 7 FRONT-PANEL INFORMATION DISPLAY L HDCD Indicator: This indicator will light when a disc

42、encoded in the HDCD format is played. In order to benefit from the FL 8385s HDCD decoding, the Analog Audio Outputs must be connected to corresponding inputs on your receiver or processor, and those inputs must be selected. If you have only connected the Coaxial Digital Audio Output to your receiver

43、 or processor, you will not hear HDCD playback unless your receiver/processor includes an HDCD decoder. Playback of non-HDCD-encoded discs using the Analog Audio Outputs will be enhanced due to the improved filters incorporated in the FL 8385s microprocessor. M Repeat Indicator: This indicator will

44、light when any of the four repeat modes described on pages 13 and 14 has been selected. N Disc Mode Indicator: This indicator will light when either the Random,All Tracks/Discs or Repeat Disc modes has been selected. O Single Mode Indicator: This indicator will light when either the Random 1 disc or

45、 Repeat 1 track or disc modes has been selected. P Pause Indicator: This indicator will light when playback has been paused. Q All Mode Indicator: This indicator will light when any of the Random All Sequential, Random All Tracks/Discs or Repeat All Discs modes has been selected. R Play Indicator: T

46、his indicator will light during playback. FL8385 FL8385 harman/kardon harman/kardon 7 8REAR-PANEL CONNECTIONS REAR-PANEL CONNECTIONSREAR-PANEL CONNECTIONS 8REAR-PANEL CONNECTIONS AC Power Cord Coaxial Digital Output Remote Control Output Remote Control Input Analog Audio Outputs AC Power Cord: Conne

47、ct this plug to an AC outlet. If the outlet is switch-controlled, make certain that the switch is in the ON position. Coaxial Digital Output: 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 s

48、ignals of the FL 8385.DO NOT connect this jack to the standard audio inputs of any device. Remote Control Output: Connect this jack to the input of another compatible Harman Kardon remote controlled device to have the remote sensor on the FL 8385 provide signals to other products. Remote Control Input: 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 Remote Sensor $ is bloc