Philips-CDR770-cdr-sm 电路图 维修手册.pdf

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1、Published by JvO 0063 Service BG AudioPrinted in the netherlandsSubject to modification? 3104 125 40110 Copyright reserved 2000 Philips Consumer Electronics B.V. Eindhoven, The Netherlands. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitte

2、d, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Compact disc recorder2nd line Service Manual CDR570 CDR770 CDR775 CDR930 CDR950 ContentsPage 1Introduction2 2Safety- and maintenance instructions, warnings and notes3 3Directio

3、ns for use6 4Mechanical instructions7 Loader CDL40097 CDL38008 Demounting CDL38009 Exploded view CDM380011 Cleaning lens12 Lubricating13 5Service modes, faultfindingtrees and repair tips14 Service modes14 Faultfindingtrees18 6Blockdiagrams33 7Electrical diagrams and PWBs34 8Alignments, Adjustments75

4、 9Circuit description76 List of abbreviations77 10 Sparepart list85 RadioFans.CN 收音机爱 好者资料库 Technical Specifications/Introduction.GB 2CDR 3rd gen.1. 1.Technical Specifications/Introduction. In this document the important issues for the mechanical and electrical testing, adjusting, checking and diagn

5、osing of the Digital Audio CDR Module such as applied in so-called 3rd generation CDR recorders is described. In this first chapter is presented the introduction of the repair manual for 2nd line repair workshops. In contains the repair instructions of the CDR Module CDL4009 + Mainboard 4228. All mo

6、dules consist of the same loader + CDM part, the mounting of the components on the Mainboard deviates form each other. For that reason a separate CDR-module has been defined for each type/modelnumber. On top of that: Each mainboard connected to another CDM has to adjusted before that module can be u

7、sed. To have this module on component level repaired this second line service (repair) manual has to used in combination with the first line service manual of mentioned typenumber. As long as the adjustment instructions can not be carried out, the module has to be exchanged by an adjusted one from S

8、ervice stock in case of repairs concerning CDM and/or Servo circuits. Chapter 2 contains the required safety instructions, in chapter 3 a referring to the directions for use, as published in the typenumber Service Manual, is made. In chapter 4 the mechanical exploded view of the complete module, the

9、 loading part and the CDM3800 is presented. This chapter also includes the mounting, demounting, cleaning and greasing instruction. In chapter 5 the internal selfdiagnostics without opening the set and use of other tools is described in the service modes. The faultfinding trees and repair suggestion

10、s like the power supply voltages for proper functioning of the mainboard are indicated there too. This chapter also contains initialising and reset, concerned measuring points are highlighted. For proper functioning of all ICs the clockfrequencies have to be tested and the importance of derived cloc

11、kfrequencies is shown. and and how to operate with the menu driven diagnostics. Via a PC connection (serial input socket RS232C) the Menu Driven Diagnostics feature is started. To improve the interactivity and communication with the set/ module the COMPAIR (the for service designed computer aided re

12、pair) tool is supported too by this CDR generation. Details to be defined soonest and will be published by a service information bulletin later on. Via blockdiagrams of applied boards the common issues of all boards are shown and in short explained in chapter 6. In chapter 7 the circuit diagrams and

13、 printed wiring boards with important measuring points are shown. The adjustment of the laser current (only one important and necessary adjustment has to be carried out, the rest of the adjustments are calcultated from that parameter onwards) will be presented in chapter 8. The needed PC program is

14、under investigation now and with the implentation of COMPAIR this adjustment action will be explained. The method how to align the software, if needed, is indicated here. In chapter 9 reference is made to existing 3rd generation circuit description in which publication a lot of details about the fun

15、ctioning of the set is explained. Also the list of abbreviations is inserted here. Finally a survey of applied components and corresponding service ordering numbers is given in chapter 10. As the Mainboard 4228 is designed to be applied for several modelnumbers this board contains a lot of optional

16、components. The most extended board is modelnumber CDR775 where double speed dubbing feature is applied too. RadioFans.CN 收音机爱 好者资料库 Safety and Maintenance instructions warnings and notesGB 3CDR 3rd gen.2. 2.Safety and Maintenance instructions warnings and notes SHOCK, FIRE HAZARD SERVICE TEST: CAUT

17、ION: After servicing this appliance and prior to returning to customer, measure the resistance between either primary AC cord connector pins (with unit NOT connected to AC mains and its Power switch ON), and the face or Front Panel of product and controls and chassis bottom, Any resistance measureme

18、nt less than 1 Megohms should cause unit to be repaired or corrected before AC power is applied, and verified before return to user/customer. Ref.UL Standard NO.1492. NOTE ON SAFETY: Symbol : Fire or electrical shock hazard. Only original parts should be used to replace any part with symbol Any othe

19、r component substitution(other than original type), may increase risk or fire or electrical shock hazard. FATTENTION Tous les IC et beaucoup dautres semi- conducteurs sont sensibles aux dcharges statiques (ESD). Leur longvit pourrait tre considrablement courte par le fait quaucune prcaution nest pri

20、se a leur manipulation. Lors de rparations, sassurer de bien tre reli au mme potentiel que la masse de lappareil et enfiler le bracelet serti dune rsistance de scurit. Veiller a ce que les composants ainsi que les outils que lon utilise soient galement a ce potentiel. D WARNUNG Alle IC und viele and

21、ere Halbleiter sind empfindlich gegen elektrostatische Entladungen (ESD). Unsorgfltige Behandlung bei der Reparatur kann die Lebensdauer drastisch vermindern. Sorgen sie dafr, das Sie im Reparaturfall ber ein Pulsarmband mit Widerstand mit dem Massepotential des Gertes verbunden sind. Halten Sie Bau

22、teile und Hilfsmittel ebenfalls auf diesem Potential. NL WAARSCHUWING Alle ICs en vele andere halfgeleiders zijn gevoelig voor elektrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen verminderen. Zorg ervoor dat u tijdens reparatie via een polsb

23、and 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 (ESD). La loro longevita potrebbe essere fortemente ridatta

24、in caso di non osservazione della piu grande cauzione alla loro manipolazione. Durante le riparazioni occorre quindi essere collegato allo stesso potenziale che quello della massa dellapparecchio tramite un braccialetto a resistenza. Assicurarsi che i componenti e anche gli utensili con quali si lav

25、ora siano anche a questo potenziale. All ICs and many other semi-conductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set via a wrist wrap

26、 with resistance. Keep components and tools also at this potential. GB WARNING GB Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified be used. NL Veiligheidsbepalingen vereisen, dat het apparaat in zijn oorspronkelijke

27、 toestand wordt terug gebracht en dat onderdelen, identiek aan de gespecifieerde worden toegepast. D Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten. Der Originalzustand des Gerats darf nicht verandert werden. Fur Reparaturen sind Original-Ersatzteile zu verwenden. I Le no

28、rme di sicurezza esigono che lapparecchio venga rimesso nelle condizioni originali e che siano utilizzati pezzi di ricambiago idetici a quelli specificati. F Les normes de scurit exigent que lappareil soit remis a ltat dorigine et que soient utilises les pices de rechange identiques celles spcifies.

29、 “Pour votre scurit, ces documents doivent tre utiliss par des spcialistes agres, seuls habilits rparer votre appareil en panne.” CL 96532086_021.eps 080999 RadioFans.CN 收音机爱 好者资料库 Safety and Maintenance instructions warnings and notesGB 4CDR 3rd gen.2. SERVICING HINTS In the set, chip components ha

30、ve been applied. For disassembly and assembly check the figure below. CL 96532086_022.eps 080999 Safety and Maintenance instructions warnings and notesGB 5CDR 3rd gen.2. CL 96532086_023.eps 080999 Instructions for useGB 6CDR 3rd gen.3. 3.Instructions for use See service manual of concerned modelnumb

31、er in which the instructions for use has been inserted. This chapter has not been filled as this module of CDR Module CDL4009 + Mainboard 4228 is only a part of a complete set. Mechanical instructionsGB 7CDR 3rd gen.4. 4.Mechanical instructions 4.1Loader CDL4009 CDL4009 consists of metal loader brac

32、ket item 82 and glued on it an identification sticker (on which the module production number and production code is printed); 4 suspension rubbers items 76, 77, 78 and 79 which carry loader assembly item 81; and on the bottom side the CDR mainboard 1001 is mounted. Notice that mainboard is dependant

33、 to the applied set and has to be adjusted to mounted CDM in loader in case of exchange. See next figure, Loader CDL4009 Figure 4-1 To demount loader module CDL4009: 1.Mainboard item 1001. Beware of connections to CDM. Optical pick-up unit has to be ESD protected! 2.Loosen suspensions 76, 77, 78 and

34、 79 from metal loader bracket 81 3.Take out Loader assy CDL MAIN BOARD CDR M3 X 6 LOADER ASSY CDL SUSPENSION LOADER BRACKET 82 76777879 81 1001 979899 100 82: LOADER BRACKET3104 121 23900 81: LOADER ASSY CDL9305 043 20900 76: SUSPENSION3104 144 05730 CL06532018_001.eps 090300 Mechanical instructions

35、GB 8CDR 3rd gen.4. 4.2Exploded view CDL3800 Figure 4-2 014822 691 10764CHASSIS 024822 361 11131TRAY MOTOR ASSY 034822 492 11709MOTOR SPRING 044822 277 11838SWITCH 104822 532 13097TULE 134822 492 11709MOTOR SPRING 144822 528 11295PULLEY WHEEL 174822 358 10266BELT 181822 522 10739RACK GEAR WHEEL 19482

36、2 522 10741TRAY GEAR WHEEL 204822 402 11221RACK 214822 418 10421TRAY BLACK 324822 492 11711RACK SPRING 334822 535 10588PLUG 344822 535 10588PLUG 374822 466 12131RUBBER 384822 466 12131RUBBER 394822 466 12131RUBBER 404822 466 12131RUBBER 414822 466 12132CLAMPER BRIDGE 42 4822 466 12133CLAMPER CL06532

37、018_002.eps 100300 Mechanical instructionsGB 9CDR 3rd gen.4. Figure 4-3 4.3DEMOUNTING LOADER CDL3800 Remove the following items starting with: (For the item numbers refer to the Exploded Views CDL3800, figure 4.2) 4.3.1Release and remove tray Push to open the tray on the rack (item 20) Figure 4-4 Fi

38、gure 4-5 Tray Pull out the tray (item 21) until it stucks. Press the lock at the left side of the tray upwards. Pull out the tray. Figure 4-6 Tray motor assey Remove the tray motor belt (item 17). Loosen the motorspring (item 3) with a pair of tweezers or a screwdriver via the rectangular hole at th

39、e right side of the tray motor. Clamper bridge Bend the locks-profiles on both sides of the clamper bridge (item 41) carefully to the outside and lift up the clamper bridge. CDM Place the loader upside down and remove the motorspring (item 13) with a pair of tweezers or a screwdriver, but hold the C

40、DM so it cant fall down. Rack First remove the rack spring (item 32) by unscrewing items 11 and 12. CL06532018_003.eps 090300 CL06532018_004.eps 210200 CL06532018_005.eps 210200 PULL TO REMOVE TRAY CL06532018_006.eps 210200 Mechanical instructionsGB 10CDR 3rd gen.4. Clamper Figure 4-7 CL06532018_007

41、.eps 210200 Mechanical instructionsGB 11CDR 3rd gen.4. 4.4Exploded view CDM3800 Figure 4-8 CDM 3800 CL06532018_012.eps 020300 1.3 1.4 1.5 1.6 Mechanical instructionsGB 12CDR 3rd gen.4. 3104 147 01580 CDM3800 COMPLETE 1: 4822 691 10765 MOUNTING PLATE ASSY 1.3: 4822 361 11132 SLEDGE MOTOR ASSY 2: 3104

42、 147 12890 OPU-24.24 3: 4822 535 10591 THIRD BEARING AXLE 4: 4822 535 10591 AXLE 12: 4822 528 11297 COMBI WHEEL 13: 4822 522 10742 GEAR RACK ASSY 22: 3104 141 21830 THIRD BEARING SPRING 2100: 4822 126 13196 100nF 10% 25V 3100: 4822 051 20101 100 5% 0,1W 5101: 4822 130 11531 SENSOR LT125A 4.5Cleaning

43、 objective lens 4.5.1CLEANING PRESCRIPTION OBJECTIVE LENS Cleaning fluid The lens cleaner codenumber reads 4822 389 10026 Procedure Take a clean cotton wool tipped stick and put Lens- cleaner on the wool. Wipe the lens very softly with the wet wool end of the stick by moving it forwards and backward

44、s in the Y- direction. (see drawing) Take a dry cotton wool tipped stick and remove the Lens-cleaner from the lens by moving it very softly back and forth in the Y-direction (see drawing) During cleaning, take the necessary precautions in order to prevent damage to the*Actuator (hinges, lens, litze-

45、wires) or OPU (ESD, .) Do not remove axle (item 4, see drawing) from OPU, because the fixing screws of axle are deforming it at its end. On their turn these deformings are damaging the hinges of the OPU when loosening the axle. Application This cleaning procedure is only applicable for the flat side

46、 (upside) of the lens. Never try to clean the round side (underside) of the lens (replica-side). With this cleaning procedure, fingerprints and dust can easily be removed with very soft and gently movements of the cotton wool tipped stick. Limitation This cleaning procedure is only applicable in cas

47、es of malfunctions of the product, due to lens-problems. Its not ment to be applied on 100% of the actuators, OPUs. After cleaning, the product must be re-checked on its functionality. Figure 4-9 Y CL06532018_008.eps 210200 4 Mechanical instructionsGB 13CDR 3rd gen.4. 4.6Lubricating 4.6.1LUBRICATING

48、 INSTRUCTIONS FOR GENERIC LOADING CDL3800 USE TRIBOL GREASE (1322 523 78101) Be careful when lubricating the parts. For parts and points to apply grease, refer to the drawing figure 4-10. Avoid excess grease. B. The bearing of the gearwheel. Grease on upper part of cylindrical surface.o C. Guiding a

49、nd 2 guiding pins of the rack on the chassis.o D. The guiding of the rackspring.* E. The 2 guiding.profiles of the rack* F. 10 guiding surface of the chassis on the tray.* G. The guiding pin on the rack.* H. On top (in the middle) of the 4 rubbers.* I. Guiding on the chassis of the tray. Grease around the 5 guiding pins.* J. The guiding ribs of the chassis for guiding the CDM-nose.* o=Lubricated with dosing apparatus. *=Lubricated with a brush. Figure 4-10 4.6.2Lubricating instructions for CDM3800 USE TRIBOL GREASE (1322 523 78101) The third bearing axle (item 3,