Lexicon-MV5-pro-sm 电路图 维修手册.pdf

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1、 MV-5 Processor SERVICE MANUAL CONTENTS BASIC SPECIFICATIONS.2 PACKAGING.4 SPARE PARTS (COMPLETE BOARDS).5 UNIT EXPLODED VIEW.6 EXPLODED VIEW PARTS LIST.7 TROUBLESHOOTING.8 POWER SUPPLY SCHEMATIC.16 BLOCK DIAGRAMS.17 SCHEMATICS.19 WIRING DIAGRAMS.31 Lexicon 250 Crossways Park Dr. Woodbury, New York

2、11797 Rev0 9/2008 RadioFans.CN 收音机爱 好者资料库 Appendix ALexicon A-2 SPECIFICATIONS Inputs HDMI (Version 1.1)2 HDMI Type A, 19-pin connectors Analog Video Three component video, RCA connectors Four S-Video connectors Four composite video, RCA connectors Digital Audio Four S/PDIF coaxial (RCA) and four S/

3、PDIF optical (Toslink) connectors Coaxial & optical input connectors conform to IEC-958, S/PDIF standards One USB mini-B connector Analog Audio One 8-channel input array, RCA connectors Six Stereo RCA connectors One microphone, 3.5mm mono mini plug 1 DOCK 30-pin connector (for optional docking stati

4、on) Control One RS-232, 9-pin, D-sub connector One IR receiver, on front panel One 3.5mm IR IN jack: Input Voltage: 3V - 15V Input Current: 10mA Frequency: 20Hz - 1KHz Accepts either stereo plug (Tip/Ring/Sleeve) or mono plug (Tip/Sleeve) Outputs HDMI (Version 1.1)One HDMI Type A, 19-pin connector A

5、nalog Video One component video, RCA connector One S-Video connector One composite video, RCA connector Analog Audio One 8-channel preamplifier plus additional subwoofer, RCA connectors Zone2 Analog Out: 1 RCA Stereo connector ControlTwo triggers - one power on/off & one programmable 3.5mm mono mini

6、 plugs 12VDC, 300mA maximum output draw HDMI Performance HDMI InputVideo: 480i/p, 576i/p, 720p, or 1080i Audio: Dolby Digital, DTS, & PCM (32, 44.1, 48, 88.2, 96kHz, 176.4kHz, and 192kHz) HDMI OutputVideo: 480i/p, 576i/p, 720p, or 1080i Audio: Dolby Digital, DTS, & PCM (32, 44.1, 48, 88.2, 96kHz, 17

7、6.4kHz. and 192kHz) S-Video& Composite Video Performance CompatibilityNTSC, PAL, and SECAM A/D converter12-bit, 110MHz D/A converter12-bit, 74.25MHz Input Level / Impedance 1V peak-to-peak/75 Output Level / Impedance 1V peak-to-peak/75 Frequency Response Composite: 10Hz to 8MHz, -3dB S-Video: 10Hz t

8、o 8MHz, -3dB Component: 10Hz to 100MHz, -3dB Signal-to-Noise Ratio65dB Differential Gain0.2% Differential Phase0.5 degrees Gain+/- 0.15dB Component Video Performance Compatibility3-channel (Y, Pr, Pb), format-independent Impedance75 Insertion Loss100MHz MV-5 PROCESSORLEXICON 2 RadioFans.CN 收音机爱 好者资料

9、库 MV-5Appendix A A-3 *Depth measurement includes knobs, buttons, and terminal connections. *For use with optional RF-1 Receiver. Specifications are subject to change without notice. Main Zone & Zone 2 Audio Performance A/D conversion24-bit, 96kHz, dual-bit D/A conversion24-bit, 44.1 to 192kHz, multi

10、-bit Input Sensitivity200mV for Analog 1 to 6, and 200mV for 8-ch input max input level: 2Vrms Input Impedance98.5k for Analog 1 to 6, and 32k for 8-ch input Frequency Response10Hz to 40kHz, +0, -2dB THD + Noise Display Setup - On-Screen Display menu is not set to OFF. Verify the video input source.

11、 The 2-line OSD is supported only at 480i and 576i resolutions when the incoming video source is digital. While using HDMI connections, the video monitor is behaving oddly. Connecting together all the components of your home theater system with HDMI depends upon every piece of equipment functioning

12、in synchronization. If the timing of any one piece is out of sync, then odd results can occur. For example, an out-of-sync source might cause incorrect colors to appear on the screen, or to shift all of the video to the left or towards the top of the screen. If the video monitor sync is off, it migh

13、t load the color spacing incorrectly so that the screen appears to be all one color, instead of displaying normal color. In short, an out-of-sync signal can cause a number of very odd results. To correct the problem, the system needs to resync, which should clear the error. Some out-of-sync issues a

14、re easier to clear than others. Typically, power cycling the MV-5 will clear it, but some sync issues dont need a power cycle to re-sync correctly. We suggest that you try the following: 1.Enter the OSD menu and then exit out again. This will resync the video. 2.Put the MV-5 into Standby mode. Wait

15、10 seconds. Then take the MV-5 out of Standby mode. 3.Power cycle the MV-5 by turning off the rear panel power switch, wait at least 10 seconds, and then turn the rear panel power switch to the ON position. 4.With the MV-5s rear panel power switch set to OFF, power-cycle all other devices that are c

16、onnected to the MV-5, such as DVD & CD players, projectors, and monitors. When finished, restore power to the MV-5 by setting the rear panel power switch to the ON position and then taking the MV-5 out of Standby mode. The MV-5 is connected via USB to the PC but the computer is playing with the soun

17、d card, not the MV-5. This condition may exist if the media player was already active when the USB cable was connected between the computer and the MV-5 Processor. With the media player actively playing, it may not “see” the USB connection. Close the media player, check the cable connections, and th

18、en launch the media player again. Now it should see the USB connection and switch control to the MV-5. MV-5 PROCESSORLEXICON 11 Troubleshooting & MaintenanceLexicon 6-6 Using the PC input, the remote control commands on page 4 of the LEX menu and page 2 of the ZONE 2 menu do not work. 1.Make sure th

19、at the computer is properly connected to the USB input of the MV-5 Processor. 2.Make sure that PC is selected as the active input on the MV-5 Processor. 3.Make sure that the media player has been opened on the computer and is playing audio. 4.Make sure the media player is the “top” or active screen

20、on the computer. The MV-5 remote control will not operate the media player if it is minimized or “behind” other programs. CAUTION! Do NOT power cycle the computer while connected to the MV-5 with the PC input selected. The computer MUST be on and connected to the MV-5 rear panel USB jack BEFORE sele

21、cting the PC input on the MV-5. Selecting the PC input first may cause a burst of loud noise that may be damaging to the speakers or the listeners hearing. Harman Specialty Group assumes no responsibility for damage caused in this manner. The iPod does not play or respond to commands from the MV-5 r

22、emote control. 1.Make sure that the Dock is properly connected to the MV-5 Processor. 2.Make sure that the Dock is selected as the active input on the MV-5 Processor. 3.Make sure that the touch screen of the MV-5 remote control is in an iPod control page of the “LEX” or “ZONE 2” menu layer. The iPod

23、s front panel display and controls do not operate when the iPod is docked and the DOCK input is selected as the MV-5s active input. This is normal behavior and does not indicate a problem with the iPod, the Dock, or the MV-5 Processor. Use the MV-5 remote control to navigate the iPod functions. Refe

24、r to Section 5: PC & Dock Controls, for further information. The iPod does not seem to be functioning correctly. Verify the video input setting of the Dock input in use. If the video input is set to an HDMI input source, the functionality of the iPod may be hindered. If all else fails. 1.Document al

25、l user-defined settings on the Installation Worksheet that begins on page D-2. Then, refer to the “Restoring Factory Default Settings” section found later in this chapter to reset the MV-5 to the factory settings. Note: If you want to save your settings before restoring the factory defaults, you mus

26、t save them manually. The Instal- lation Worksheet in Appendix D has been provided to assist you. 2.Contact an authorized Lexicon dealer. 3.Contact Lexicon customer service at or 781-280-0300. Note: Visit the knowledgebase at for answers to frequently asked questions and additional troubleshooting i

27、nformation. MV-5 PROCESSORLEXICON 12 MV-5Troubleshooting & Maintenance 6-7 MV-5 ERROR MESSAGES MV-5 error messages are displayed on the OSD when certain error conditions exist. This section explains what each of these error messages means and how to fix each problem. VIDEO ERROR MESSAGES The followi

28、ng error messages apply specifically to video issues. VIDEO PROCESS ERROR This error message will display when the incoming datastream is at a higher resolution than the resolution of the VIDEO OUT parameter. The MV-5 can up-sample a lower resolution to a higher resolution. However it can not down-s

29、ample to a lower resolution setting. To correct the problem, right click to return to the VIDEO OUT Setup parameter and change the VIDEO OUT parameter to AUTO or to a resolution setting that is higher than that of the incoming datastream. VIDEO FORMAT OUTPUT ERROR This error message will display whe

30、n the MV-5 is connected to an HDMI video monitor but the VIDEO OUT parameter is set to a resolution that is not supported by the HDMI video monitor. To correct the problem, right click to return to the VIDEO OUT Setup parameter and change the VIDEO OUT parameter to AUTO or to a resolution setting th

31、at is supported by the video monitor. HDCP VIDEO ERROR This error message will display when the video monitor is not HDCP compliant and the incoming datastream requires HDCP compliance. Typically, any HDMI source will require a HDCP compliant video monitor. To correct the problem, change the incomin

32、g datastream to a non-HDCP source or change the video monitor to one that is HDCP compliant. VIDEO PROCESS NOTICE Video input resolution can not be higher than video output resolution when set to FAROUDJA. Please adjust settings. PRESS TO CONTINUE VIDEO OUTPUT NOTICE Video output resolution not supp

33、orted by HDMI monitor. Please select a different VIDEO OUT resolution. PRESS TO CONTINUE Display is not HDCP Capable HDCP NOTICE MV-5 PROCESSORLEXICON 13 Troubleshooting & MaintenanceLexicon 6-8 CHANGE MONITOR MESSAGE This error message flashes on the 2-line OSD and front panel display when an analo

34、g signal is being sent to an HDMI monitor. To correct the problem, change the video monitor setting to an analog input source. AUTOCAL ERROR MESSAGES The following error messages apply specifically to error conditions that exist during the AUTOCAL or SEMI AUTOCAL procedures, or that pertain to the s

35、aved AUTOCAL settings. MICROPHONE OVERLOAD ERROR This error message will display when the microphone is placed too close to the speaker grille of the speaker under test during the Far Field, Near Field, or Subwoofer Tests. CAUTION! If the microphone is too close to the speaker during testing, damage

36、 to the speaker or microphone may result. To correct the problem, move the microphone further away from the speaker under test and repeat the test. FAR FIELD ERROR This error message will display when the microphone does not detect sound from a speaker that has a cross-over setting other than “NONE”

37、 during the Far Field Test. To correct the problem, check the microphone position, verify the speaker cables are connected properly, verify that the volume level is correct, and repeat the test. NEAR FIELD ERROR This error message will display when the Near Field test has failed. Typically, this fai

38、lure occurs because the microphone is not in the proper position or the volume setting is too low. To correct the problem, verify that the microphone is within two feet of the speaker under test, verify the speaker cables are connected properly, verify that the volume level is correct, and repeat th

39、e test. CHANGE MONITOR TO ANALOG IN MICROPHONE OVERLOAD Verify microphone position and lower volume 6dB. BACK TO SPK/EQ SETUP REPEAT TEST FAR FIELD ERROR FRT-L: NO SIDE-R: NO CENTER: YES REAR-R: YES FRT-R: YES REAR-L: YES SIDE-L: YES Verify mic position and spkr connections. Speakers detected: If OK

40、, raise volume 5dB. BACK TO SPK/EQ SETUP REPEAT TEST NEAR FIELD AUTOCAL Verify mic position and spkr connections. If OK, raise volume 5dB. ERROR BACK TO SPK/EQ SETUP REPEAT TEST MV-5 PROCESSORLEXICON 14 MV-5Troubleshooting & Maintenance 6-9 SUBWOOFER CAL ERROR This error message will display when th

41、e Subwoofer test has failed. Typically, this failure occurs because the microphone is not in the proper position or the volume setting is too low. To correct the problem, check the microphone position, verify the subwoofer cables are connected properly, verify that the volume level is correct, and r

42、epeat the test. Note: If you are using a powered subwoofer, verify that it is powered on. CROSS-OVER CHANGE WARNING This warning message will display the first time each speaker or subwoofer cross-over is manually changed from the AUTOCAL or SEMI AUTOCAL settings. Press the ? cursor button on the re

43、mote control to clear the warning message. When cross-over changes are complete, run the SEMI AUTOCAL procedure. SUBWOOFER CAL ERROR SUBWOOFER 1: NO SUBWOOFER 2: NO Verify mic position and sub connections. If OK, raise volume 5dB. Subwoofers detected: BACK TO SPK/EQ SETUP REPEAT TEST CAUTION Changin

44、g these settings will affect the autocalibration. Run SEMI AUTOCAL after changes are made. RETURN TO MENU MV-5 PROCESSORLEXICON 15 MV-5 PROCESSORLEXICON 16 - +5V - +5V - +5V MV-5 PROCESSORLEXICON 17 MV-5 PROCESSORLEXICON 18 MV-5 PROCESSORLEXICON 19 MV-5 PROCESSORLEXICON 20 MV-5 PROCESSORLEXICON 21 M

45、V-5 PROCESSORLEXICON 22 ? MV-5 PROCESSORLEXICON 23 ? MV-5 PROCESSORLEXICON 24 ? MV-5 PROCESSORLEXICON 25 ? MV-5 PROCESSORLEXICON 26 DSP MV-5 PROCESSORLEXICON 27 DSP MV-5 PROCESSORLEXICON 28 DSP MV-5 PROCESSORLEXICON 29 DSP MV-5 PROCESSORLEXICON 30 ? LEXICON MV-5 WIRING DIAGRAM MV-5 PROCESSORLEXICON 31 MV-5 SMPS WIRING DIAGRAM MV-5 PROCESSORLEXICON 32