Harman-Kardon-DMC-250-230-Service-Manual 电路图 维修手册.pdf

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1、 harman/kardon Service Manual DMC250/230 DIGITAL MEDIA CENTER CONTENTS TECHNICAL SPECIFICATIONS 2 TROUBLESHOOTING GUIDE 3 FRONT PANEL CONTROLS 4 REAR PANEL CONNECTIONS 5 PACKAGE LIST AND PARTS 6 EXPLODED VIEW AND PARTS 7 ELECTRICAL PARTS LIST 8 SEMICONDUCTOR PINOUTS 33 PCB DRAWINGS 86 BLOCK DIAGRAM

2、102 WIRING DIAGRAM 103 SCHEMATIC DIAGRAMS 104 Released EU2008 harman/kardon, Inc. Rev 0, 09/2008 250 Crossways Park Dr. Woodbury, New York, 11797 harman/kardonDMC250/230 Service Manual Page 1 of 110 RadioFans.CN 收音机爱 好者资料库 TECHNICAL SPECIFICATIONS 35 ENGLISH Technical Specifications Applicable Disc:

3、Disc formats: 5 inch (12 cm) or 3 inch (8 cm) DVD Video, DVD-Audio, Standard conforming DVD+RW, DVD+R, DVD-R, DVD-RW, DivX, VCD, CD, CD-R, MP3, WMA, JPEG or CD-RW discs, Region code: DVD Movie disc with Code 2 or 0 only. DVD-Layers: Single Side/Single Layer, Single Side/Dual Layer, Dual Side/Single

4、Layer, Dual Side/Dual Layer Audio formats: DVD-Audio MLP lossless, Linear PCM, MPEG, Windows Media9, Dolby Digital or DTS Audio discs Still-image format: JPEG Memory cardsSlot 1: Secure Digital (SD), Multimedia Card (MMC) and Memory Stick (compatible with Magic Gate) cards. Other card types may be u

5、sed with a compatible adapter, but are not guaranteed to be recognized by the DMC 250 Slot 2: Compact Flash I (CF) cards, or cards using a Compact Flash 1-compatible adapter Card Capacity: Up to 1 GB USB Port:Up to USB 2.0-compatible solid-state flash drives Video Signal System:PAL/NTSC HDMIOutput:V

6、ideo: 576p, 720p, 1080i, 1080p HDMI Version 1.2a-compliant HDCP Version 1.1-compliant Composite Video Output:1 Vp-p/75 Ohms, sync negative polarity S Video Output:Y/Luminance: 1 Vp-p/75 Ohms, sync negative polarity C/Chrominance: 0.286 Vp-p Component Video Output:Y: 1 Vp-p/75 Ohms, sync negative pol

7、arity Cr: 0.7 Vp-p/75 Ohms Cb: 0.7 Vp-p/75 Ohms Analog Audio Output:2 Vrms max Frequency Response:DVD (Linear PCM):2Hz - 22kHz (48kHz sampling) 2Hz - 44kHz (96kHz sampling) CD:2Hz - 20kHz Signal/Noise Ratio (SNR):105 dB (A-weighted) Dynamic Range:DVD: 100dB (18 Bit) / 105dB (20 Bit) CD/DVD: 96dB (16

8、 Bit) THD/1kHz:DVD/CD: 0.0025 % Wow align the disc with the guides and place it in its proper position. Incorrect disc type Check to see that disc is CD, CD-R, CD-RW, DivX, VCD, MP3, WMA, JPEG, DVD-R, DVD-RW, DVD+R, DVD+RW (standard conforming), DVD-Audio or DVD-Video; other types will not play. Inv

9、alid Region Code Use Region 2 or Open Region (0) disc only. Rating is above parental preset Enter password to override or change rating settings. No picture Intermittent connections Check all video connections. Wrong input Check input selection of TV or receiver. Progressive Scan output selected Use

10、 Progressive Scan mode only with compatible TV. If needed, press the Progressive Scan/Interlaced ButtonLto toggle to the correct mode. Video Off feature active Press Video Off ButtonQto reactivate video circuitry (see page 26) HDMI Output?is connected to a The HDMI Output?may not be used with video

11、displays that are not video display that is not HDCP-compliant.HDCP-compliant. Unplug the cable and select another audio and video connection (see pages 13 through 14). No sound Intermittent connections Check all audio connections. Incorrect digital audio selection Check digital audio settings. DVD

12、disc is in fast or slow mode There is no audio playback on DVD discs during fast or slow modes. Surround receiver not compatible Use analog audio outputs. with 96kHz PCM audio DVD Audio disc is loaded without Use 6-Channel Audio Outputs?or Analog Audio Outputs?. using analog audio connection Picture

13、 is distorted or jumps during MPEG-2 decoding It is a normal artifact of DVD playback for pictures to jump or show fast forward or reverse playsome distortion during rapid play. Some remote buttons do not operate Function not permitted at this time With most discs, some functions are not permitted a

14、t certain during DVD play; prohibited symbol times (e.g., Track Skip) or at all (e.g., direct audio track selection). appears (see below) The OSD menu is in a foreign language Incorrect OSD language Change the display language selection. The symbol appears Requested function not available at Certain

15、 functions may be disabled by the DVD itself during this timepassages of a disc. Picture is displayed in the Incorrect match of aspect ratio settings Change aspect ratio settings. wrong aspect ratioto disc Remote control inoperative Weak batteries Change both batteries. Sensor is blocked Clear path

16、to sensor or use optional outboard remote sensor. Disc will not copy to VCR Copy protection Many DVDs are encoded with copy protection to prevent copying to VCR. Password not accepted. Incorrect password being used or Factory default password “1234” always remains active. password has been forgotten

17、. Cannot program playlist DMC 250 must be in Stop mode to Stop play of disc before programming a playlist. program a playlist Edit Mode is turned off Select the Edit Mode line in the Control Commands and press the Enter button to turn it on Cannot navigate through hierarchy Edit Mode is turned on, S

18、elect the Edit Mode line in the Control Commands and disabling navigation of folderspress the Enter button to turn it off Unable to select desired media No media is present Insert the appropriate memory card into one of the card source slots, or a USB flash drive into the USB Port Wrong type of USB

19、drive was inserted Only USB flash drives that do not function as stand alone in USB Port MP3 players are compatible Media was not inserted correctly Remove media and carefully insert according to the instructions on page 7 harman/kardonDMC250/230 Service Manual Page 3 of 110 RadioFans.CN 收音机爱 好者资料库

20、8 FRONT PANEL CONTROLS ?Main Information Display:This display delivers messages and status indications to help you operate the DMC 250 player. 1Power On/Off (Standby): Press the button once to turn the DMC 250 player on, press it again to put the unit in the Standby mode. 2Open/Close: Press this but

21、ton to open or close the Disc Tray. 3Disc Drawer. 4Play/Pause: Press to initiate playback or to resume playback after Pause has been pressed. Press this button to momentarily pause play- back. To resume playback, press the button again. If a DVD is playing, action will freeze and a still picture wil

22、l be displayed when the button is pressed. 5Stop: Press this button once to place the disc in the Resume mode, which means that playback will stop, but as long as the tray is not opened or the disc changed, DVD playback will continue from the same point on the disc when the Play Button is pressed ag

23、ain. Resume will also work if the unit was turned off. To stop a disc and have play start from the beginning, press the button twice. 6Skip/Search (Previous): Press this button to move backward through the music tracks on a CD disc or the chapters on a DVD disc. Keep the button pressed to search bac

24、kwards at one of the available speeds. 7Skip/Search (Next): Press to move forward through the music tracks on a CD or the chapters on a DVD disc. Keep the button pressed to search forwards at one of the available speeds. 8Record: When an audio CD is loaded, or the Analog Audio Inputs are selected as

25、 the source, press this button to view the Record tab of the on-screen menu. Pressing this button does not begin the recording. NOTE: It is not possible to record from one of the memory cards or the USB device to any other media or to the USB device. It is also not possible to transfer image or vide

26、o files. However, an audio signal is always available at the Analog Audio Outputs. You may make ana- log recordings from any source by connecting an analog audio recorder to the rear-panel Analog Audio Outputs. 9Source Selector: Press this button to view the current media source selection. If a medi

27、a source is available, that is, if media is currently installed, the source icon will appear at normal brightness. If no media is installed in a particular source, e.g. if a card slot is empty, its icon will be dimmed and you will not be able to select it. You may always select the Disc Player or th

28、e Auxiliary Analog Audio Inputs, even when no media is present. Use the M/NButtons to scroll through the available sources, and press the Enter Button to select and switch to the high- lighted source. NOTE: It is not possible to select a new source while the current source is playing or even while i

29、t is paused. Press the Stop Button before select- ing a new source. A BM/N/K/LNavigation and Enter Buttons: Use these buttons to navigate the on- screen menus, and press the Enter Button to select an item. The M/NButtons may be used to switch between the track or file list on the left side of the sc

30、reen and the settings on the right side. Press and hold a Navigation Button to scroll at a faster rate. When a folder is highlighted, press the Enter Button to expand it. Highlight the “Up” line and press the Enter Button to close a folder and view the contents of the next higher level of the disc,

31、card or device. When a file or track is highlighted, press the Enter Button to begin playback. CCard Slot 1: Insert an SD, MMC or Memory Stick memory card into this slot by gently pushing it all the way in until it clicks. The slot also accommodates miniSD, microSD and Memory Stick Duo cards when us

32、ed with the appropriate adapter, available in most electronics and computer stores. Remove a card from this slot by gently pushing it in until it unlatches, then pulling it all the way out of the slot. DCard Slot 2: Insert a Compact Flash I memory card into this slot by gently pushing it all the way

33、 in until it is firmly seated in the slot. Remove it by pulling it all the way out of the slot. EUSB Port: Insert a USB client devices connector into this port, being careful to correctly align the devices plastic tongue with the gap. Do not connect a computer to this port. FRemote IR Sensor. ?Main

34、Information Display 1Power On/Off (Standby) 2Open/Close 3Disc Drawer 4Play/Pause 5Stop 6Skip/Search (Previous) 7Skip/Search (Next) 8Record 9Source Selector ANavigation Buttons BEnter CCard Slot 1 DCard Slot 2 EUSB Port FRemote IR Sensor 1 3 876549ABA 2?EDCF Front Panel Controls harman/kardonDMC250/2

35、30 Service Manual Page 4 of 110 12 REAR PANEL CONNECTIONS Rear Panel Connections ? ?Optical Digital Output ?Coaxial Digital Output ?AC Power Cord ?Composite Video Output ?S-Video Output ?Component Video Outputs ?Scart TV Output ?Remote Control Output ?Remote Control Input ?Analog Audio Output ?HDMI

36、Output ?6-Channel Audio Outputs ?Analog Audio Input ?Optical Digital Output: Connect this jack to the optical digital input of an A/V receiver or surround processor for Dolby Digital, DTS or PCM audio playback. ?Coaxial Digital Output: Connect this jack to the coaxial digital input of an A/V receive

37、r or surround processor for Dolby Digital, DTS or PCM audio playback. NOTE:The coaxial digital output should only be connected to a digital input. Even though it is the same RCA-type connector as standard analog audio connections, DO NOT connect it to a conventional analog input jack. Connect either

38、 the Optical Digital Audio Output?or the Coaxial Digital Audio Output?to a corresponding digital audio input on your receiver or processor, but not both. ?AC Power Cord: Connect this plug to an AC outlet. If the outlet is controlled by a switch, make certain that it is in the ON position. ?Composite

39、 Video Output: Connect this jack to the video input on a television or video projector, or to a video input on an A/V receiver or processor if you are using that type of device for video input switching. ?S-Video Output: Connect this jack to the S-Video input on a television or video projector, or t

40、o an S-Video input on an A/V receiver or processor if you are using that type of device for S-Video input switching. ?Component Video Outputs: These out- puts carry the component video signals for connection to display monitors with component video inputs. For standard analog TVs or projectors with

41、inputs marked Y/Pr/Pb or Y/Cr/Cb, connect these outputs to the correspon- ding inputs. If you have a high-definition televi- sion or projector that is compatible with high scan rate progressive video, connect these jacks to the “HD Component” inputs. Note that if you are using a progressive scan dis

42、play device, then ”Progressive” must be selected in the Video Set-up Menu in order to take advantage of the progressive scan circuitry. See page 22 for more information on progressive scan video. IMPORTANT:These jacks should NOT be connected to standard composite video inputs. ?SCART OUT (TV): If yo

43、ur TV has a SCART socket, you can connect a SCART cable to your TV and to your DMC 250 Player for improved video quality. The SCART cable carries both audio and video. You can select Composite Video or RGB video for that SCART connectors video output signal. ?Remote Control Output: Connect this jack

44、 to the infrared (IR) input jack of another compatible Harman Kardon remote controlled product to have the built-in Remote Sensor on the DMC 250 provide IR signals to other com- patible products. ?Remote Control Input: Connect the output of a remote infrared sensor, or the remote control output of a

45、nother compatible Harman Kardon product, to this jack. This will enable the remote control to operate even when the front panel Remote Sensor on the DMC 250 is blocked. This jack may also be used with compatible IR remote control-based automation systems. ?Analog Audio Output: Connect these jacks to

46、 an audio input on an A/V receiver or surround processor for analog audio playback. ?HDMI Output: If you have an HDMI-com- patible receiver or video display device, connect this output to an HDMI input on the receiver or video display for the highest-quality uncom- pressed digital audio and video av

47、ailable. Even if your receiver is not capable of processing audio in the HDMI format, you may still experience the superb reproduction of HDMI video. If your video display has a DVI input, you may use an optional HDMI-to-DVI cable or adapter for the connection to the display. In all cases, the video

48、 display must be HDCP-compliant in order to use the HDMI output. For best results, we do not recommend HDMI connections in excess of ten feet. The following audio formats may be output via the HDMI connection: Audio CD 2-Channel PCM or 5.1-channel DTS DVD-Audio 2-Channel or 5.1-channel PCM DVD-Video

49、 Up to 5.1-channel Dolby Digital or DTS Note:To hear the high-resolution surround sound recorded on DVD-Audio discs, you need to connect the 6-Channel Audio Outputs? to the corresponding input jacks on your receiver or processor. These formats are not output digi- tally. ?6-Channel Audio Outputs: Connect these outputs to the matching 6-channel analog audio inputs on your receiver or surround sound proc