Philips-CDR-570-770-775-930-950-Service-Manual(1)电路原理图.pdf

Published by JvO 0063 Service BG Audio Printed in the netherlands Subject to modification c533104 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 transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.Compact disc recorder 2nd line Service ManualCDR570CDR770CDR775CDR930CDR950Contents Page1 Introduction 22 Safety- and maintenance instructions, warnings and notes 33 Directions for use 64 Mechanical instructions 7Loader CDL4009 7CDL3800 8Demounting CDL3800 9Exploded view CDM3800 11Cleaning lens 12Lubricating 135 Service modes, faultfindingtrees and repair tips 14Service modes 14Faultfindingtrees 186 Blockdiagrams 337 Electrical diagrams and PWBs 348 Alignments, Adjustments 759 Circuit description 76List of abbreviations 7710 Sparepart list 85Technical Specifications/Introduction.GB 2 CDR 3rd gen.1.1. Technical Specifications/Introduction.In this document the important issues for the mechanical and electrical testing, adjusting, checking and diagnosing 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 modules 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 used. 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 Service 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 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. Thefaultfinding trees and repair suggestions 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 clockfrequencies 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 repair) 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 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 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 functioning 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 components.The most extended board is modelnumber CDR775 where double speed dubbing feature is applied too.Safety and Maintenance instructions warnings and notes GB 3CDR 3rd gen. 2.2. Safety and Maintenance instructions warnings and notesSHOCK, FIRE HAZARD SERVICE TEST:CAUTION: After servicing this appliance and prior to returning to customer, measure the resistance betweeneither primary AC cord connector pins (with unit NOT connected to AC mains and its Power switch ON), and theface or Front Panel of product and controls and chassis bottom,Any resistance measurement less than 1 Megohms should cause unit to be repaired or corrected before ACpower 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 other component substitution(other than original type), may increase risk or fire or electrical shock hazard.F ATTENTIONTous les IC et beaucoup d'autres semi-conducteurs sont sensibles aux déchargesstatiques (ESD).Leur longévité pourrait être considérablementécourtée par le fait qu'aucune précautionn'est prise a leur manipulation.Lors de réparations, s'assurer de bien êtrerelié au même potentiel que la masse del'appareil et enfiler le bracelet serti d'unerésistance de sécurité.Veiller a ce que les composants ainsi que lesoutils que l'on utilise soient également a cepotentiel.DWARNUNGAlle IC und viele andere Halbleiter sindempfindlich gegen elektrostatischeEntladungen (ESD).Unsorgfältige Behandlung bei der Reparaturkann die Lebensdauer drastisch vermindern.Sorgen sie dafür, das Sie im Reparaturfallüber ein Pulsarmband mit Widerstand mitdem Massepotential des Gerätes verbundensind.Halten Sie Bauteile und Hilfsmittel ebenfallsauf diesem Potential.NLWAARSCHUWINGAlle IC's en vele andere halfgeleiders zijngevoelig voor elektrostatische ontladingen(ESD).Onzorgvuldig behandelen tijdens reparatiekan de levensduur drastisch doenverminderen.Zorg ervoor dat u tijdens reparatie via eenpolsband met weerstand verbonden bent methetzelfde potentiaal als de massa van hetapparaat.Houd componenten en hulpmiddelen ook opditzelfde potentiaal.IAVVERTIMENTOTutti IC e parecchi semi-conduttori sonosensibili alle scariche statiche (ESD).La loro longevita potrebbe essere fortementeridatta in caso di non osservazione della piugrande cauzione alla loro manipolazione.Durante le riparazioni occorre quindi esserecollegato allo stesso potenziale che quellodella massa dell'apparecchio tramite unbraccialetto a resistenza.Assicurarsi che i componenti e anche gliutensili con quali si lavora siano anche aquesto potenziale.All ICs and many other semi-conductors aresusceptible to electrostatic discharges (ESD).Careless handling during repair can reducelife drastically.When repairing, make sure that you areconnected with the same potential as themass of the set via a wrist wrap withresistance.Keep components and tools also at thispotential.GBWARNINGGBSafety regulations require that the set be restored to its original conditionand that parts which are identical with those specified be used.NLVeiligheidsbepalingen vereisen, dat het apparaat in zijn oorspronkelijketoestand wordt terug gebracht en dat onderdelen, identiek aan degespecifieerde worden toegepast.DBei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten.Der Originalzustand des Gerats darf nicht verandert werden.Fur Reparaturen sind Original-Ersatzteile zu verwenden.ILe norme di sicurezza esigono che l'apparecchio venga rimesso nellecondizioni originali e che siano utilizzati pezzi di ricambiago idetici a quellispecificati.FLes normes de sécurité exigent que l'appareil soit remis a l'état d'origine etque soient utilisées les pièces de rechange identiques à celles spécifiées.“Pour votre sécurité, ces documentsdoivent être utilisés par desspécialistes agrées, seuls habilités àréparer votre appareil en panne.”CL 96532086_021.eps080999Safety and Maintenance instructions warnings and notesGB 4 CDR 3rd gen.2.SERVICING HINTSIn the set, chip components have been applied. For disassembly and assembly check the figure below.CL 96532086_022.eps080999Safety and Maintenance instructions warnings and notes GB 5CDR 3rd gen. 2.CL 96532086_023.eps080999Instructions for useGB 6 CDR 3rd gen.3.3. Instructions for use See service manual of concerned modelnumber 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 instructions GB 7CDR 3rd gen. 4.4. Mechanical instructions4.1 Loader CDL4009CDL4009 consists of metal loader bracket 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 to the applied set and has to be adjusted to mounted CDM in loader in case of exchange.See next figure, Loader CDL4009Figure 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 79 from metal loader bracket 813. Take out Loader assy CDLMAIN BOARD CDRM3 X 6LOADER ASSY CDLSUSPENSIONLOADER BRACKET8276 77 78 7981100197 98 99 10082: LOADER BRACKET 3104 121 2390081: LOADER ASSY CDL 9305 043 2090076: SUSPENSION 3104 144 05730CL06532018_001.eps090300Mechanical instructionsGB 8 CDR 3rd gen.4.4.2 Exploded view CDL3800Figure 4-2 014822 691 10764CHASSIS024822 361 11131TRAY MOTOR ASSY034822 492 11709MOTOR SPRING044822 277 11838SWITCH104822 532 13097TULE134822 492 11709MOTOR SPRING144822 528 11295PULLEY WHEEL174822 358 10266BELT181822 522 10739RACK GEAR WHEEL194822 522 10741TRAY GEAR WHEEL204822 402 11221RACK214822 418 10421TRAY BLACK324822 492 11711RACK SPRING334822 535 10588PLUG344822 535 10588PLUG374822 466 12131RUBBER384822 466 12131RUBBER394822 466 12131RUBBER404822 466 12131RUBBER414822 466 12132CLAMPER BRIDGE42 4822 466 12133CLAMPERCL06532018_002.eps100300Mechanical instructions GB 9CDR 3rd gen. 4.Figure 4-3 4.3 DEMOUNTING LOADER CDL3800Remove the following items starting with:(For the item numbers refer to the Exploded Views CDL3800, figure 4.2)4.3.1 Release and remove trayPush to open the tray on the rack (item 20)Figure 4-4 Figure 4-5 TrayPull 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 asseyRemove the tray motor belt (item 17).Loosen the motorspring (item 3) with a pair of tweezers or a screwdriver via the rectangular hole at the right side of the tray motor.Clamper bridgeBend the locks-profiles on both sides of the clamper bridge (item 41) carefully to the outside and lift up the clamper bridge.CDMPlace the loader upside down and remove the motorspring (item 13) with a pair of tweezers or a screwdriver, but hold the CDM so it cant fall down.RackFirst remove the rack spring (item 32) by unscrewing items 11 and 12.CL06532018_003.eps090300CL06532018_004.eps210200CL06532018_005.eps210200PULL TO REMOVE TRAYCL06532018_006.eps210200Mechanical instructionsGB 10 CDR 3rd gen.4.ClamperFigure 4-7 CL06532018_007.eps210200