Philips-CDR795_CDR796-cdr-sm 电路图 维修手册.pdf

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1、For servicing CDR79x the set has to be divided into two parts: 1. Except for the CD-R/W module all workshops can repair the set on component level. The Switched Mode Power Supply unit will be exchanged completely in case of a failure. 2.The CD-R/W module can only be repaired on component level with

2、the help of ComPair. With this tool diagnosing of the set can be done in an interactive way. In this tool also the adjustment procedure has been implemented. The adjustment is absolutely necessary in case the CDR-Main Board and/or CD drive (CDR Loader) is disconnected from the matched production com

3、bination. Only designated workshops can perform these repairs! Please send the complete set to the designated workshop. Available circuit descriptions:The Basics of Compact Disc Recordable/Rewritable4822 725 25242 2nd line Service Manual CDR Mozart Module3122 785 60030 chapter Technical Specificatio

4、n and Measurement setup.1-1, 1-2 Location of printed circuit boards.1-3 Warnings 202652 PAUSE 202648 DISPLAY202611 DIM162671 CD TEXT/edit2026 DELETE202649 SHUFFLE202628 REPEAT202629 RC5 code RC283105, 220402 CDCDR 8882 CDCDR Remote Control:RC5 commandsRC283105 TECHNICAL SPECIFICATION L R LEVEL METER

5、 e.g. Sennheiser UPM550 with FF-filter S/N and distortion meter e.g. Sound Technology ST1700B DUT CD Use Audio Signal Disc SBC429 4822 397 30184 (replaces test disc 3) MEASUREMENT SETUP RadioFans.CN 收音机爱 好者资料库 1-3 NTC CDR MOZART BOARD SWITCHED MODE POWER SUPPLY INTERFACE BOARD LIGHTGUIDE BOARD DISPL

6、AY BOARD KEY BOARD Location of boards, CDR79x, 100102 HEADPHONE BOARD CD MODULE CD-R/W MODULE LOCATION OF PRINTED BOARDS picture 1 2-1 WARNING All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When re

7、pairing, make sure that you are connected with the same potential as the mass of the set via a wristband with resistance. Keep components and tools at this potential. f ATTENTION Tous les IC et beaucoup dautres semi-conducteurs sont sensibles aux dcharges statiques (ESD). Leur longvite pourrait tre

8、considrablement courte par le fait quaucune prcaution nst prise leur manipulation. Lors de rparations, sassurer de bien tre reli au mme potentiel que la masse de lappareil et enfileer le bracelet serti dune rsistance de scurit. Veiller ce que les composants ainsi que les outils que lon utilise soien

9、t galement ce potentiel. d WARNUNG Alle ICs und viele andere Halbleiter sind empfindlich gegenber elektrostatischen Entladungen (ESD). Unsorgfltige Behandlung im Reparaturfall kann die Lebensdauer drastisch reduzieren. Sorgen Sie dafr, da Sie im Reparaturfall ber ein Puls- armband mit Widerstand mit

10、 dem Massepotential des Gertes verbunden sind. Halten Sie Bauteile und Hilfsmittel ebenfalls auf diesem Potential. WAARSCHUWING Alle ICs en vele andere halfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen verm

11、indern. Zorg ervoor dat u tijdens reparatie via een polsband met weerstand verbonden bent met hetzelfde potentiaal als de massa van het apparaat. Houd componenten en hulpmiddelen ook op ditzelfde potentiaal. i AVVERTIMENTO Tutti IC e parecchi semi-conduttori sono sensibili alle scariche statiche (ES

12、D). La loro longevit potrebbe essere fortemente ridatta in caso di non osservazione della pi grande cauzione alla loro manipolazione. Durante le riparationi occorre quindi essere collegato allo stesso potenziale che quello della massa delpparecchio tramite un braccialetto a resistenza. Assicurarsi c

13、he i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale. Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified be used. Safety components are marked by the symbol i Le norme di sicurezza

14、estigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambiago identici a quelli specificati. Componenty di sicurezza sono marcati con Veiligheidsbepalingen vereisen, dat het apparaat in zijn oorspronkeliijke toestand wordt teruggebracht en dat onderd

15、elen, identiek aan de gespecificeerde, worden toegepast. De Veiligheidsonderdelen zijn aangeduid met het symbool s Varning ! Osynlig laserstrlning nr apparaten r ppnad och sprren r urkopplad. Betrakta ej strlen. Advarsel ! Usynlig laserstrling ved bning nr sikkerhedsafbrydere er ude af funktion. Und

16、g udsaettelse for strling. Varoitus ! Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina nkymttmlle laseristeilylle. l katso steeseen ! f Pour votre scurite, ces documents doivent tre utiliss par des spcialistes agrs, seuls habilits rparer votre appareil en panne. ESD SAFETY d Bei jed

17、er Reparatur sind die geltenden Sicherheitsvor- schriften zu beachten. Der Originalzustand des Gertes darf nicht verndert werden. Fr Reparaturen sind Original- ersatzteile zu verwenden. Sicherheitsbauteile sind durch das Symbol markiert. f Les normes de scurit exigent que lappareil soit remis ltat d

18、origine et que soient utilises les pices de rechange identiques celles spcifies. Les composants de scurit sont marqus CLASS 1 LASER PRODUCT DANGER: Invisible laser radiation when open. ? After servicing and before returning the set to customer perform a leakage current measurement test from all expo

19、sed metal parts to earth ground, to assure no shock hazard exists. The leakage current must not exceed 0.5mA. AVOID DIRECT EXPOSURE TO BEAM. AVAILABLE ESD PROTECTION EQUIPMENT : anti-static table matlarge 1200 x650 x1.25mm4822 466 10953 small 600 x650 x1.25mm4822 466 10958 anti-static wristband4822

20、395 10223 connection box (3 press stud connections, 1M)4822 320 11307 extendible cable (2m, 2M, to connect wristband to connection box)4822 320 11305 connecting cable (3m, 2M, to connect table mat to connection box)4822 320 11306 earth cable (1M, to connect any product to mat or to connection box) 4

21、822 320 11308 KIT ESD3 (combining all 6 prior products - small table mat)4822 310 10671 wristband tester4822 344 13999 WARNINGS CD recorder:starts/interrupts playback CD player:starts/interrupts playback ?SPEED 124x selects the record speed for internal recording Note:SPEED 124x,REC and COPYCD will

22、be illuminated depending on the different modes you are in.This in order to facilitate fi nding the relevant keys for selection. Controls 12 English L R 1654327 80!#$% interrupts playback ?DIM controls the brightness of the display flag flashes. CD ALBUM - button pressed? CD STOP button pressed? N Y

23、 10SHUFFLE INPUT ALBUM - (CDR) PLAY/PAUSE (CD) SPEED STOP (CDR) 19 20 21 PLAY/PAUSE (CDR) RECORD KEYKEY CODE 2 3 4 (exit) 5 6 7 8 9 12 15 11 S (CDR) ALBUM + (CDR) 14 13 16 17 ERASE CD S (CD) STOP (CD) ALBUM - (CD) STANDBY T (CDR) OPEN/CLOSE (CD) 18 T (CD) 1 0 ALBUM + (CD) DISPLAY COPY CD OPEN/CLOSE

24、(CDR) KEYKEY CODE KEY CODES table 2 SERVICE TESTPROGRAM VARIOUS TESTS CDR79x servtest various, 240402 N Y FORMAT EEPROM Display shows for 2s. EEPROM is cleared and default values are stored. SHUFFLE button pressed? This test should only be used to clear the EEPROM in case of a P-hangup. Attention: a

25、ll data are set to default values, BLACK BOX data are not cleared. KEY - DISPLAY button pressed? STOP button pressed? N N Y Y Display shows all segments and flags for checking open circuits. see figure 1 All LEDs are switched on. DISPLAY TEST fig. 1 N Y QUARTZ TEST Display shows 122037Hz can be meas

26、ur. on (pin 23 of P). STOP button pressed? N Y SPEED button pressed? Tact frequency P (divided 10MHz) f0 10MNEW VXX S *To leave Service Testprogram plug mains cord off. *In the main menu the sound settings (volume, .) and trays work as in normal mode. Display shows version number of the P - software

27、. stands for Service mode stands for Version number of the software used in the Front (Display) P. To enter Service Testprogram hold PLAY & REC buttons depressed while plugging mainscord in. S-CDR795-VXX NY EXIT END-USER DIAGNOSTICS Display shows: FAILED? for 3s. Display shows: PASSED? for 3s. END-U

28、SER DIAGNOSTICS (CDR module) To enter END-USER DIAGNOSTICS hold S & T buttons on CDR side depressed while plugging mainscord in. TEST O.K.? Display shows for 5s each: Software version of set P S stands for Service mode VXX stands for Version number of the software used in the Front (Display) P. Soft

29、ware versions of the CDR module: MOXXXX stands for Software version of MOZART flash ROM 7101 BXXXX stands for Software version of Basic Engine flash EPROM 7017 SDRAM TEST 7100 Display shows: DTST1 CHECKSUM TEST 7101 Display shows: DTST2 ERASE TEST 7101 Display shows: DTST3 COMMUNICATION TEST (UART-B

30、US) Display shows: DTST4 S-CDR795-VXX MOXXXX BXXXX NEW Display shows for 2s. EEPROM is cleared and default values are stored. PASS N Y EEPROM TEST Display shows ERR Display shows Testpattern is written to address 1 and read back again INPUT button pressed? STOP button pressed? Test ok? N Y N Y NTC X

31、X N Y TEMPERATURE (NTC) TEST Display shows XX = value in C STANDBY button pressed? STOP button pressed? N Y STANDBY button pressed? N Y Fan is switched on/off display shows or for 2s. FAN ON FAN OFF STEP ALBUMMP3PLAYLISTTOTALREMRECTRACKTRACKTIMETIME REPTRACK DISC ALL PROG SHUFF CDTEXT EDIT CD RECORD

32、ER L R CD PLAYER 8X4X 2X1XLINEDIG OPTMIC REC CDRW FINALIZE SERVICE TESTPROGRAM VARIOUS TESTS 5-85-8 CDR DC-ERASE MODE SERVICE TESTPROGRAM CDR MODULE DC-ERASE finished? N Y BURN IN MODE CDR MODULE Display shows: HH BI RE FE DC-ERASE MODE starts. Record complete disc from analog source with normal spe

33、ed. Display shows: HH BI RE FE Complete disc recorded? N Y Error detected? N Y Finalize disc with double speed. Display shows: HH BI RE FE HH? stands for the number of hours the test was running BI? stands for Burn In test RE? number of errors detected during DC erase and write mode FE? number of er

34、rors detected during Finalizing the disc CDR79x servtest CDR module, 240402 Y Disc erased? N Y N Y Complete disc will be erased with 4x speed. (starting from PMA-area up to and including ATIP leadout area) The display shows the countdown of the remaining time required to complete the operation: ER m

35、m ss Display shows: PASSED mm: remaining minutes ss:remaining seconds STOP button pressed? Exit DC-ERASE Mode Note: With the DC-Erase mode the CD-RW can be changed back in its original state, like a new disc. Stopping the erase-function by switching power off will leave the disc in an unpredictable

36、status! TEST O.K.? NN Y YY CDR ELECTRICAL TEST Insert CD-DA disc before starting the test MODULE INFORMATION MOZART BOARD DIAGNOSTIC CDR - LOADER TEST SDRAM TEST 7100 Display shows: DTST1 CHECKSUM TEST 7101 Display shows: DTST2 ERASE TEST 7101 Display shows: DTST3 COMMUNICATION TEST (UART-BUS) Displ

37、ay shows: DTST4 Display shows: DERR n n=number of failed test Display shows next error CDR T button pressed?N Y Y Y all errors shown? N N N TEST O.K.? NN Y Y Display shows: BERR 1 Display shows: PASSED? for 3s The test is performed by playing 5s at beginning, 5s in the middle and 5s at the end of th

38、e disc. Display shows actual playing time. Note: The BURN-IN mode is an endless cycle of *DC erase, to erase the CD-RW disc with max. laser power *Recording a CD-RW disc with speed N=1 *and Finalizing with double speed This test is intended to check the quality of a CDR loader and to detect intermit

39、tent failures. Exit CDR electrical TestExit CDR electrical Test Display shows for 5s: ? ?MO XXXX BXXXX ? MO xxxx stands for Software version of MOZART (flash ROM 7101) Bxxxx stands for Software version of Basic engine processor (flash EPROM 7017) CDR T button pressed? CDR T button pressed? CDR T but

40、ton pressed? CDR T button pressed? S *To leave Service Testprogram plug mains cord off. *In the main menu the sound settings (volume, .) and trays work as in normal mode. Display shows version number of the P - software. To enter Service Testprogram hold PLAY & REC buttons depressed while plugging m

41、ainscord in. S-CDR795-VXX CDR ALBUM + button pressed? N Y ERASE CD button pressed? N Y RECORD button pressed? N Y VXX stands for Service mode stands for Version number of the software used in the Front (Display) P. SERVICE TESTPROGRAM CDR MODULE 5-95-9 SERVICE TESTPROGRAM CD MODULE CDR79x CD servtes

42、t, 240402 OPEN/CLOSE button pressed? N Y N Y CD PLAY button pressed? N Y CD MECHANICAL TEST SLIDE TESTFOCUS TESTTRAY TESTTURNTABLE TEST Display shows: SLIDE for visual inspection only OPEN/CLOSE button pressed? N Y Y N Y N Slide moves continuously in/out. Display shows: CD ME TEST Display shows: OPE

43、N (even when tray is blocked) Tray opens. Display shows: CLOSE? (even when tray is blocked) Tray closes. Slide moves to inner position. N Y STOP button pressed? Exit CD Mech. Tests Objective moves continuously up/down. Display shows: FOCUS N Y CD ALBUM - button pressed? CD ALBUM + button pressed? N

44、Y Turntable motor is switched on. Display shows: DISC Focus servo is switched off. Turntable motor is switched off. Move slide manually backwards to get view of the pickup. It is recommended to enter the mech. tests in the sequence as drawn below. Otherwise it might happen that the one or the other

45、test will not be activated electrically. 2) 2) 2) CD PLAY button pressed? CD ALBUM - button pressed? CD ALBUM + button pressed? CD LOADER TEST TEST O.K.? NN Y Y Display shows: BERR 1 Display shows: PASSED? for 3s CD T button pressed? The test is performed by playing 5s at beginning, 5s in the middle

46、 and 5s at the end of the disc. Display shows actual playing time. N Y CD ALBUM + button pressed? Exit CD electrical TestExit CD electrical Test Insert CD-DA disc before starting the test VXX S *To leave Service Testprogram plug mains cord off. *In the main menu the sound settings (volume, .) and tr

47、ays work as in normal mode. Display shows version number of the P - software. stands for Service mode To enter Service Testprogram hold PLAY & REC buttons depressed while plugging mainscord in. S-CDR795-VXX CD S button pressed? N Y stands for Version number of the software used in the Front (Display

48、) P. SERVICE TESTPROGRAM CD MODULE 6-16-1 1307 131017130451130371130915 7324F 74LVU04D +IC 1314B DIG IN 7312 OPT. IN 1315B +F +12V -F-30V +5V +5V +5V EVER +F -F -30V +5V EVER +12V+5V +ICV_AMP1+-12V 005416 V_AMP1- HP_L HP_R ANA IN_R ANA OUT_L EBU IN COAX ANA OUT_R ANA IN_L -12V +12V LM833D V_AMP1+ V_

49、AMP1- 1315A 1314A DIGITAL OUT 7324E 74LVU04D +IC 7324A-D 5300 7320 74LVU04D +IC +5V 130613 139113 130112 NTC10k FAN FAN CONTROL provisional INTERFACE BOARD ANALOG OUT LINE IN 151 130891 POWER_ON POWER_ON FAN UL SW Info NTC EBU IN OPT. EBU OUT +5V NC NC +12V +5V +5V +12V LEVEL SHIFT BUFFER UL_SW Info UL_DRAWER OUT UL_DRAWER IN UL_SPEEDSELECT UL_DRAWER OUT UL_DRAWER IN UL_SPEEDSELECT 7313 OPT.OUT CON1 CN101 121 8 1 (Supply) ON/OFF +5V EVER -F1 +F1 -30V +5V +12V EBU IN CD10 +5V AUDIO