Loewe-Xemix_59501-dvd-sm 电路图 维修手册.pdf

《Loewe-Xemix_59501-dvd-sm 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Loewe-Xemix_59501-dvd-sm 电路图 维修手册.pdf（55页珍藏版）》请在收音机爱好者资料库上搜索。

1、GB 230-90347.911 LOEWE. DVD-Player Xemix Art.-Nr. 59501 LOEWE systems DVD-Player Auro Art.-Nr. 59502 General Description Adjustment Procedures Block / Schematic Diagrams Exploded Views / Parts List Digital Versatile Disc CLASS 1 LASER PRODUCT TRACKTITLESCAN TIMETRACKTOTAL CHAPTERVCDSHUFFLE CHAPTERTI

2、TLETRACK A -B REPEAT FTS TRACKTITLESCAN TIMETRACKTOTAL CHAPTERVCDSHUFFLE CHAPTERTITLETRACK A -B REPEAT FTS RadioFans.CN 收音机爱 好者资料库 Technical specificationsGB 259502 without P50) 1.2Audio performance Test equipment: Audio Precision Testdiscs: CDDA: Philips audio signal testdisc 1 : VCD: Philips A/V t

3、estdisc color = black; dual SCART Fully according to prEN1057-2-1 Signal switching is P50 controlled; supported features of mode 3 see survey of applicable standards. 1.7.1SCART II (connected to TV) Pin signals: 1 - Audio R 1.8V RMS ? 2 - Audio R ? 3 - Audio L 1.8V RMS ? 4 - Audio GND ? 5 - Blue/Chr

4、oma GND ? 6 - Audio L ? 7 - Blue out/ Chroma in 0.7Vpp +/- 0.1V into 75 Ohm (*) ? 8 - Function switch 4.5V / 9.5V / 12V = asp. ratio 4:3 DVD ? 9 - Green GND ? 10- Nc 11- Green 0.7Vpp +/- 0.1V into 75 Ohm (*) ? 12- Nc 13- Red/Chroma GND ? 14- Fast switch GND ? 15- Red out/ Chroma out 0.7Vpp +/- 0.1V

5、into 75 Ohm (*) +/- 3dB 0.3Vpp in case of Chroma ? 16- Fast switch RGB/ CVBS or Y 1V / 3V into 75 Ohm = RGB ? 17- Y/CVBS GND ? 18- Fast switching GND ? 19- CVBS/Y/RGB sync 1Vpp +/- 0.1V into 75 Ohm (*) ? 20- CVBS/Y ? 21- Shield ? 1.7.2SCART I (connected to AUX) Pin signals: 1 - Audio R 1.8V RMS ? 2

6、- Audio R ? 3 - Audio L 1.8V RMS ? 4 - Audio GND ? 5 - Blue/Chroma GND ? 6 - Audio L ? 7 - Blue in/ Chroma out +/- 3dB 0.3vpp Chroma (burst) ? 8 - Function switch ? 9 - Green GND ? 10- P50 Control 11- Green ? 12- Nc 13- Red/Chroma GND ? 14- Fast switch GND ? 15- Red in/ Chroma in ? 16- Fast switch R

7、GB/ CVBS or Y ? 17- CVBS GND ? 18- Fast switching GND ? 19- CVBS/Y/RGB sync 1Vpp +/- 0.1V into 75 Ohm (*) ? 20- CVBS/Y ? 21- Shield ? (*) for 100% white 1.8Digital output 1.8.1Coaxial CDDA/ LPCM (incl MPEG1): According IEC958 MPEG2, AC3 audio: According IEC1937 Remark: DTS audio output mode is only

8、available on “digital out” 1.8.2Optical Identical to coaxial 1.9Dimensions and weight Place and height of feet: acc. to Loewe Harmonisation line Apparatus tray closed: WxDxH: 435 x 315x 75/88 Apparatus tray open: WxDxH: 435 x 442 x 75/88 Weight without packaging: ca. 4 Kg Weight in packaging: ca. 6

9、Kg 1.10Laser output power no other equipment is needed to perform a number of hardware tests to check if the DVD player is faulty. The diagnosis is simply a error or pass message; no indication is given of faulty hardware modules. Only tests within the scope of the diagnostic software will be execut

10、ed hence only faults within this scope can be detected. 6.1.2Contents of Dealer Script The dealer script executes all diagnostic nuclei that do not need any user interaction and are meaningful on a standalone DVD player. The nuclei called in the dealer script are the following (the number after each

11、 nucleus name corresponds with the number being on the local display when the nucleus is executed during the dealer script): Figure 6-1 Figure 6-2 VideoColSetupCommChecks the I2C interface with the RGB video processor on the Audio/Video board (only for DVD players with RGB video processor). VideoSca

12、rtSwCommChecks the I2C interface with the scart switch on the Audio/Video board PapChksFl7Calculate and verify checksum of FLASH memory. PapDramWrR6Pattern test of all locations in the DRAM(s). PapI2cDispChecks the I2C interface with the slave processor on the display PCB. PapS2bEchoChecks the I2C i

13、nterface to the basic engine. PapI2cNvramChecks the I2C interface with the NVRAM. PapNvramWrRPattern test of all locations in the NVRAM CompSdramWrRPattern test of all locations in the SDRAM(s). Nucleus 8 5 4 3 2 1 9 Description CL 96532065_001.eps 120799 Press 2 keys simultaneously + Connect to mai

14、ns. During the test, the following display is shown: the counter counts down from the number of nuclei to be run before the test finishes. Example: SET O.K.? YES NO To exit DEALER SCRIPT ,disconnect from mains. CL96532126_013.eps 261099 DIAGNOSTIC SOFTWARE : SCRIPT INTERFACESGB 2859502 in the next p

15、aragraph this interaction is described. The player test is done in two phases: 1.Interactive tests: this part of the player test depends strongly on user interaction and input to determine nucleus results and to progress through the full test. Reading the error log and error bits information can be

16、useful to determine any errors that occurred recently during normal operation of the DVD player. 2.The loop test will perform the same nuclei as the dealer test, but it will loop through the list of nuclei indefinitely. 6.2.4Survey Figure 6-3 SLEDGE TEST BeSledgeOut/In(41ab) FOCUS TEST BeFocusOn(38a

17、) DISC MOTOR TEST BeDiscMotorOn(39a) RADIAL TEST BeRadialOn(40a) JUMP TEST BeGroovesIn/Mid/Out(42abc) Press 2 keys simultaneously + Connect to mains To exit player test, disconnect from mains INTERACTIVE TESTS DISPLAY TEST DispDisplay(30) LED TEST DispLed(29) KEYBOARD TEST DispKeyb(27) SCART LOOP TE

18、ST AudioPinkNoiseOn(20a) VideoScartSwDvd(54a) VideoColDencOn(23a) PICTURE TEST DISPLAY PCB MONO PCB(SERVO) if it is, press PLAY, if it is not, press PAUSE. By pressing NEXT the script will proceed to the next test. If the user presses NEXT before PLAY or PAUSE, the DispLed nucleus will return TRUE (

19、LED test successful). Figure 6-4 KEYBOARD TEST The keyboard of the DVD player is tested by nucleus DispKeyb. The user is expected to press all keys on the local keyboard once. The code of the key pressed is shown on the local display (1 hexadecimal digit) immediately followed by a (hexadecimal) numb

20、er indicating how many times that key has been pressed. Example of the local display during this test: Figure 6-5 The key-codes displayed on the local display will scroll from right to left when the display gets full, the text tb- will remain on display. Figure 6-6 If any keys are detected more than

21、 once (due to hardware error), the key-code is displayed twice (or more), with the second digit increased by 1. If the user does not press all keys minimally once (in any order), the DispKeys nucleus will return FALSE and cause an error in the overall result of the player script. The user can leave

22、the keyboard test by pressing the NEXT key on the local display of the DVD player for at least one full second. The result of the keyboard test is shown on local display as follows: Figure 6-7 Or Figure 6-8 Pressing NEXT on the local keyboard again will proceed to the next text. REMOTE CONTROL TEST

23、The remote control of the DVD player is tested by nucleus DispRc. The user must press any key on the remote control just once. The codes of the key pressed will be shown on the local display in hexadecimal format. Example: Figure 6-9 In this example 23 is the hexidecimal code of the pressed RC key.

24、The user can leave the remote-control test by pressing NEXT on the local keyboard of the DVD player. The remote control test is successful if a code was received before the user pressed the NEXT key; pressing the NEXT key before pressing a key on the remote control gives an error in the remote contr

25、ol If OK, press PLAYIf NOK, press PAUSE If OK, press PLAYIf NOK, press PAUSE If OK, press PLAYIf NOK, press PAUSE press NEXT to continue CL 96532065_006.eps 120799 CL 96532065_007.eps 120799 key id.key 0PLAY 1NEXT 2PREVIOUS 3PAUSE 4STOP 5 OPEN/CLOSE 6 3D-SOUND A STANDBY CL96532126_015.eps 261099 CL

26、96532065_009.eps 120799 CL 96532065_010.eps 120799 CL 96532065_011.eps 120799 DIAGNOSTIC SOFTWARE : SCRIPT INTERFACESGB 3059502 the display will show the following message very shortly: Figure 6-14 This sound will only be audible from version cut3.1 of Sti5505(item7503 on mono board) onwards. After

27、starting up sound 1, SCART loop-trough will be simultaneously active during this test. SCART loop-trough will be measured with the aid of an external video source. When entering the SCART loop-trough, the local display indicates: RC Key idHexadecimal code STANDBYC STOP31 PLAY2C PLAY BACKWARD2D PAUSE

28、30 STEP FORWARDF6 STEP BACKWARDF5 FORWARD28 FORWARD 4XDF FORWARD 8XE0 BACKWARD29 BACKWARD 4XDE BACKWARD 8XDD SLOW22 SLOW 2D8 SLOW BACKWARD23 SLOW BACKWARD 2DB NEXT20 PREVIOUS21 CURSOR UP58 CURSOR DOWN59 CURSOR LEFT5A CURSOR RIGHT5B OK5C 00 11 22 33 44 55 66 77 88 99 TOGGLEC8 ANGLE85 AUDIO4E SUBTITLE

29、S4B SUBTITLE ON/OFFE3 ROOT MENU54 TITLE MENU71 MENUD1 SETUP MENU82 OSD ON/OFFF RETURN83 RESUMED7 SCAN2A SHUFFLE1C REPEAT1D A/B REPEAT3D TOGGLE SCART43 OPEN/CLOSE42 FTSFB KARAOKEE4 OPTIONFA CL 96532065_012.eps 120799 CL 96532065_013.eps 120799 CL 96532065_014.eps 120799 CL 96532065_015.eps 120799 CL

30、96532065_016.eps 120799 DIAGNOSTIC SOFTWARE : SCRIPT INTERFACESGB 3159502 if the user presses NEXT without pressing PLAY or PAUSE first, the result of this test will be TRUE (sound ok). By pressing the NEXT button there will be switched over to the external source, this must become now visible on th

31、e TV screen (using the SCART). The local display indicates: Figure 6-16 The internally generated colour bar is still available on the CVBS and Y/C outputs. And the pinknoise-signal is still available on the cinch audio outputs. By pressing the PREV button, the internal generated colour bar becomes v

32、isual again. The test can be left by pressing the NEXT key for more than one second. SOUND 2 TEST The second soundtest is performed by producing a sine sound (nucleus AudioSineOn). The signal can be stopped by pressing the STOP-key. The display will show the following message: Figure 6-17 By pressin

33、g PLAY the user confirms the test, pressing PAUSE will indicate that something went wrong. Pressing NEXT will proceed to the next; if the user presses NEXT without pressing PLAY or PAUSE first, the result of this test will be TRUE (sound ok). Colour set-up test The colour set-up test is performed by

34、 putting the internally generated colour bar in diffferent settings on the TV screen. The first colour bar will be displayed in setting 1. The display will show the following message: Figure 6-18 By pressing the NEXT button, you can go to the second setting. The local display indicates: Figure 6-19

35、By pressing the PREVIOUS button, the colour bar with the first setting becomes visual again. By pressing PLAY the user confirms the test, pressing PAUSE will indicate that something went wrong. The test can be left by pressing the NEXT key for more than one second; if the user presses NEXT without p

36、ressing PLAY or PAUSE first, the result of this test will be TRUE (colour set-up ok). 6.3.3BASIC ENGINE VERSION NUMBER In the basic engine tests, the version number of the Basic Engine will be shown first, as the following example: Figure 6-20 By pressing the NEXT key, the Basic Engine tests are sta

37、rted. TRAY TEST First, the tray is tested. The purpose of this test is also to give the user the opportunity to put a disc in the tray of the DVD player. Some tests on the Basic Engine require that a disc(e.g. DVD MPTD test disc) is present in the player. At the end of the Basic Engine tests this tr

38、ay test will be repeated solely to enable the user to remove the disc in the tray. The local display will look as follows: Figure 6-21 By pressing PLAY or PAUSE the user can toggle the position of the tray. Note that this test will not contribute to the test result of the Basic Engine. Pressing NEXT

39、 will proceed to the next test, after the tray has been closed (by the software) if it was open. SLEDGE TEST(visual test) The second Basic Engine test tests the sledge; the user can move the sledge as many times as desired by using PLAY (nucleus BeSledgeOut) and PAUSE (nucleus BeSledgeIn). Pressing

40、NEXT on the local keyboard proceeds to the next test. Note that this test will not contribute to the test result of the Basic Engine. The local display will look as follows during the sledge test: CL 96532065_017.eps 120799 CL 96532065_018.eps 120799 CL 96532065_019.eps 120799 CL96532126_016.eps 261

41、099 CL96532126_017.eps 261099 CL96532126_018.eps 261099 CL 96532065_021.eps 120799 DIAGNOSTIC SOFTWARE : SCRIPT INTERFACESGB 3259502 the local display looks as follows: Figure 6-23 By pressing PLAY the user confirms that the disc motor is running; pressing PAUSE indicates the disc motor does not wor

42、k. Pressing NEXT proceeds to the next test, after a reset of the disc motor (nucleus BeDiscMotorOff). If the user presses NEXT before pressing PLAY or PAUSE, the result of this test will be TRUE (disc motor is running). FOCUS TEST(visual test) The fourth Basic Engine test tests the focussing; first

43、focussing is turned on by calling nucleus BeFocusOn. The display will look as follows: Figure 6-24 By pressing PLAY the user confirms that the focussing was succesful; pressing PAUSE indicates a focussing failure. Pressing NEXT proceeds to the next test after a reset of the focussing (nucleus BeFocu

44、sOff); if NEXT is pressed before PLAY or PAUSE, the result of this test will be TRUE (focus successful). RADIAL TEST(visual the local display looks as follows: Figure 6-25 By pressing PLAY the user confirms that the radial function worked; pressing PAUSE indicates the function does not work. Pressin

45、g NEXT proceeds to the next test, after a reset of the radial (nucleus BeRadialOff). If the user presses NEXT before pressing PLAY or PAUSE, the result of this test will be TRUE (radial successful). JUMP TEST(listening test) The sixth and last Basic Engine test tests the jumping by calling nuclei Be

46、GroovesIn, BeGroovesMid and BeGroovesOut. During this test, the local display looks as follows: Figure 6-26 The user can switch between the three different types of groove settings by pressing PLAY (forward to next nucleus in the list In-Mid-Out) or PAUSE (backward in the list In-Mid-Out). This is d

47、one in a cyclic manner; note that this test will not contribute to the test result of the Basic Engine. Pressing NEXT proceeds to the next test, after the disc motor has been shut off with a call to nucleus BeDiscMotorOff. TRAY TEST As a last action for the Basic Engine tests, the tray test is repea

48、ted. The local display will look as follows: Figure 6-27 This test is meant to give the user the opportunity to remove the disc in the tray. The tray position can be toggled using the PLAY and PAUSE key. The tray will be closed (by the software, if it is open) before proceeding to the next test when

49、 the user presses the NEXT key. CL 96532065_022.eps 120799 CL 96532065_023.eps 120799 CL 96532065_024.eps 120799 CL 96532065_025.eps 120799 CL 96532065_026.eps 120799 CL 96532065_027.eps 120799 DIAGNOSTIC SOFTWARE : SCRIPT INTERFACESGB 3359502 the 4 digits at the right side of the display show the last error that was found when running the loop test: the leftmost two digits of this code indicate which nucleus resulted in a fault; the rightmost two digits refer to the faultcode within that nucleus. For further explanation of this error