Philips-3-DTC-TRAINING-Service-Manual(1) 电路图 维修手册.pdf

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1、Warning - ESD.2 Wiring.3 Brief description.4 Truth table .6 Timing Diagram .7 Repair Tips Replacing the CD Drive.11 Jammed carriage, blocked tray .12 Replacing the gears .15 Exploded view.20 Published by HB 0148 Service Audio Printed in The Netherlands Subject to modification3103 785 25140 3 Disc Tr

2、ay Changer CLASS 1 LASER PRODUCTCopyright 2001 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

3、 without the prior permission of Philips. Table of Contents 3DTC RadioFans.CN 收音机爱 好者资料库 2 The following steps have to be done when replacing the CD mechanism: 1. Disconnect flexfoil from old CD drive 2. Put a paperclip over contacts of flexfoil to short-circuit the contacts (fig.1) 3. Remove old CD

4、 drive 4. Remove paperclip from flexfoil 5. Connect flexfoil to new CD drive 6. Remove ESD-protection (solder joint) from laserunit (see below) 7. Position new CD drive in its studs CHARGED CAPACITORS ON THE SERVO BOARD MAY DAMAGE THE CD DRIVE ELECTRONICS WHEN CONNECTING A NEW CDM MECHANISM. THATS W

5、HY, BESIDES THE SAFETY MEASURES LIKE SWITCH OFF POWER SUPPLY ESD PROTECTION ADDITIONAL ACTIONS MUST BE TAKEN BY THE REPAIR TECHNICIAN. WARNING fig.1 Attention: The laser diode of this CD drive is protected against ESD by a solder joint which shortcircuits the laserdiode to ground. For proper functio

6、nality of the CD drive this solder joint must be removed after connection the drive to the set. RadioFans.CN 收音机爱 好者资料库 3 WIRING Module WIRING CD Drive RadioFans.CN 收音机爱 好者资料库 Brief description On the next pages various actions of the 3 Disc Tray Changer are described with simplified drawings. 1. In

7、itial state. After Power on the changer is in this position. The drawer closed Carriage #1 is in Play position Carriage #2 and #3 are in home position The Changer looks like 2. Tray open. The Drawer is moved out Carriage #2 and #3 remain in home position The Changer looks like 2 3 1 Carriage Drawer

8、Clamper 2 3 1 Carriage Drawer Clamper 4 5 3. Carriage extra. This position is necessary to get access to the lower carriage. It is also used during disc change. The changer looks like The various states are recognized by seven switches. For functions see truth table on next page. 2 3 1 Carriage Carr

9、iage extra position Drawer Clamper SW8SW7SW6 SW2&3 SW4&5 Location of switches Truth Table Slider reverse recognition Slider forward recognition Drawer closed recognition No carriage under clamper Carriage #1 under clamper Carriage #2 under clamper Carriage #3 under clamper Carriage home recognition

10、Carriage extra recognition 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 X X X X X X X X X SW 8Function SW 7 SW 6 SW 5 SW 4 SW 3 SW 2 - Q0Q1Q2Q3Q4Q5Q6Q7 Register output / Switch 6 Timing Diagrams 1. Open #3 2. Close #3 T

11、ime 200ms/div ActionRecognition CCW STOP CW CCW STOP CW SW 2 SW 3 SW 4 SW 5 SW 6 SW 7 SW 8 Switches Carriage motor Drawer motor initialfinal 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 press close ACTION Carriage #2 to home position Drawer closesprepare for next action duty cycle 50% (brake) Time 200ms/div Action

12、Recognition CCW STOP CW CCW STOP CW SW 2 SW 3 SW 4 SW 5 SW 6 SW 7 SW 8 Switches Carriage motor Drawer motor initialfinal 2 3 1 2 3 1 2 3 1 2 3 1 press open #3 ACTION Carriage #2 to extra position Drawer opensprepare for next action duty cycle 50% (brake) 7 3. Select #2 4. Select #1 Time 200ms/div Ac

13、tionRecognition CCW STOP CW CCW STOP CW SW 2 SW 3 SW 4 SW 5 SW 6 SW 7 SW 8 Switches Carriage motor Drawer motor initial 3 1 23 1 2 final 2 3 1 select #1 ACTION clamper up clamper down carriage#1 to play position 2 31 3 2 1 3 1 2 1 2 3 Time 200ms/div ActionRecognition CCW STOP CW CCW STOP CW SW 2 SW

14、3 SW 4 SW 5 SW 6 SW 7 SW 8 Switches Carriage motor Drawer motor initial 2 31 2 3 1 final 3 1 2 select #2 ACTION clamper up clamper down carriage#2 to play position 2 31 32 1 3 1 2 1 2 3 8 9 Load all discs 1. Power on. Initial state. 2. Press open #2. Tray moves out. Load carriage #2. 3. Press open #

15、3. Carriage #2 moves in extra position. 4. Load carriage #3. 5. Press open #1. Tray closes. 6. Carriage #2 moves in home position. 7. Clamper moves to upper position. Carriage #1 moves to height of carriage #3. 8. Carriage #1 moves to height of carriage #2. 9. Carriage #3 moves below carriage #1. 10

16、. Carriage #2 moves down. 11. Carriage #1 moves in home position. 12. Carriage #3 and clamper move down (in play position). 13. Tray moves out. Load carriage #1. 14. Press close. Tray closes. insert disc insert disc insert disc 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 31 2 31 2

17、3 12 3 1 2 3 12 3 1 23 1 23 1 23 1 23 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 10 2 31 2 31 2 31 2 31 23 1 23 1 2 1 23 1 212 3 1 2 3 1 3 1 2 2 31 2 31 2 3 12 3 1 2 3 12 3 1 23 1 23 1 23 1 23 1 2 3 1 1 2 3 Change backwards E.g. select #3 while playing #1. Change forwards E.g. select #2 while playi

18、ng #1. See also timing diagrams (page 8). Additional hints: Gears pos. 4 and pos. 5 are responsible for forward/backward movement of the carriages. Star Gears pos. ( are responsible for up/down movement of the carriages. Mis-aligned gears (pos. 4 & 5) result in jamming carriages. Wrong inserted carr

19、iages (e.g. #2 mixed up with #3) causes endless forward/backward changing of the loader module. Replacing the CD Drive 1. Dismantle top and side cover of set. 2. Loosen 4x screw (see picture 1). Remove metal cover of changer. 3. Connect mains and switch on the set. 4. Press Open/Close CD button Tray

20、 moves outside. 5. Disconnect mains. 6. Loosen 2x screw (see picture 2). Remove bracket with clamper. 7. Remove carriage above CD-drive. 8. Loosen 4x screw (see picture 3). Remove CD-drive. 9. Disconnect flex foil and short-circuit it (see page 2). 10. Desolder wires. 11. Remove dampers pos. 57 and

21、58. 12. Insert dampers into new CD-drive. 13. Solder wires to new CD-drive (see page 3). 14. Connect flexfoil. 15. Remove solder joint on new CD-drive (see page 3). 16. Position the new CD drive in its studs. 17. Fix the drive - 4x screw (see picture 3). 18. Insert carriage. 19. Mount bracket with c

22、lamper - 2x screw (see picture 2). 20. Mount metal cover of the loader unit - 4x screw (see picture 1). 21. Connect mains Press Open/Close CD button Tray closed. 11 Repair Tips picture 1 picture 2picture 3 12 Jammed carriage, blocked tray If the tray cant be opened via open close dismantle the top a

23、nd side cover of the set and remove the metal cover of the loader unit as shown in picture 1. If the carriage is in a position as shown in picture 4, the complete loader unit is locked. In this state clamper A is in upper position and carriage B is jammed under the clamper. Problem : The tray cannot

24、 open as long as the clamper is in upper position and the clamper cannot move down because of the jammed carriage. picture 4 The problem can only be fixed as follows 1. Loosen 2x screw (see picture 5). Remove bracket with clamper. 2. Shift lever (pin) to the left as shown in picture 6. This action r

25、eleases the tray. picture 5 picture 6 13 picture 7 3. Shift lever (block) backwards as shown in picture 7 Tray moves approx. 1cm outside. 4. Pull out the tray manually. 5. Remove carriage above the CD-drive. WARNING: Dont apply mechanical force to the tray. Bend carriage - as shown in picture 8 - to

26、 release guidings. Jammed carriage, blocked tray (continued) picture 8 6. Turn pulley as shown in picture 9 to move next carriage over CD-drive. 7. If necessary repeat step 5 and 6 until all carriages are removed. picture 9 14 Reassembling the tray 1. Insert carriage #1 above CD-drive. Attention: Th

27、e 3 cartridges are different (see picture 10). 2. Mount clamper (2x screw - see picture 5). 3. Connect mains. Set initializes Clamper moves down. 4. Select CD 2 Clamper moves up Carriage #2 (not yet inserted) will be moved above CD-drive Carriage #1 moves back Clamper moves down. 5. While clamper mo

28、ves down disconnect mains. 6. Open tray - using lever (block) as shown in picture 7. Lift clamper - using lever (pin) as shown in picture 11. 7. Insert carriage #2 above CD-drive. 8. Lower clamper, close tray, connect mains. Set initializes carriage #1 moves above CD-drive Clamper moves down. 9. Sel

29、ect CD 3. Clamper moves up carriage #3 (not yet inserted) will be moved above CD-drive carriage #1 moves back Clamper moves down. 10. While clamper moves down disconnect mains. 11. Open tray - using lever (block) as shown in picture 7. Lift clamper - using lever (pin) as shown in picture 11. 12. Ins

30、ert carriage #3 above CD-drive. 13. Lower clamper, close tray, connect mains. Set initializes Carriage #1 moves above CD-drive Loader unit reassembled successfully. picture 10 picture 11 Move lever to unlock clamper 15 Replacing the Gears (pos. 3 & 4) 1. Disassemble complete Loader unit. 2. Shift le

31、ver (block) backwards as shown in picture 7 Tray moves approx. 1cm outside. Pull out the tray manually. 3. Demount right side of tray (see picture 12). 4. Close tray (simply push inside). 5. Demount left side of tray (see picture 13). Lift right side as high as possible. Attention:The two gearwheels

32、 shown in detail A resp. detail B come loose easily! picture 12 picture 13 picture 14 Detail A Detail B 16 picture 15 picture 16 Replacing the Gears (continued) 6. Turn gearwheel A as shown in picture 15 carriage moves right. 7. Lift carriage as shown in picture 16 and remove it. 8. Turn gearwheel A

33、 in the other direction remaining carriage moves right. 9. Lift carriage as shown in picture 16 and remove it. 10. Turn round tray and align gear as shown in picture 17, detail C. 11. Fix the gear with a pin (e.g. a paperclip d=1mm) see detail B. 12. Loosen 4x screw as shown in picture 17, detail D.

34、 Detail C picture 17 Detail D 17 Replacing the Gears (continued) 13. Replace gear pos.3 and/or 4. Make sure that the new gear is aligned as shown in picture 17, detail C as well. To avoid damage of the switches when inserting the gear, use a strip of paper as shown in picture 18. 14. Fix gear with 4

35、x screw (see picture17,D). 15. Check if gear is aligned as shown in picture 17 detail C. Inserting the Carriages 16. Turning gear A as shown in picture 19 will move the upper and lower wheel of gear B alternately. Turn gear A until the lower wheel stops moving and upper one starts moving. 17. Insert

36、 right side of carriage #3 (= side with the toothrack) as shown in picture 20. picture 18 picture 19 Detail B Detail A picture 20 18 Inserting the Carriages (continued) 18. Insert other side of carriage as shown in picture 21. 19. Turning gear A as shown in picture 19 will move carriage inside. Afte

37、r reaching the endposition the upper wheel (picture19 B) starts turning. 20. Insert carriage #2 as shown in picture 20 and 21. 21. Lift carriage #3 while turning gear A (see picture 22). 22. Lift clamper and insert carriage #1 above CD-drive. 23. Shift lever as shown in picture 23. picture 21 pictur

38、e 22 picture 23 Assembling the Tray 24. Lift back side of tray as high as possible. Assemble tray starting at position 1 as shown in picture 24. picture 24 19 Assembling the Tray (continued) 25. Move tray outside (simply pull the tray). 26. Align toothed wheel A as shown in picture 25. 27. Snap in o

39、ther side of tray as shown in picture 26. 28. Move tray inside (simply push). 29. Done. picture 25 Detail picture 26 20 3Disc Tray Changer Exploded view Exploded view 3DTC 2000 08 22 19 19 23 4 11 33 A 121 34 41 50 72 77 30 121 43 1 37 85 53 47 51 52 35 32 121 115 115 120 57 57 58 59 58 18 54 36 25

40、29 39 40 113 49 71 48 123 115 31 28 26 24 27 60 113 19 19 3 12 62 56 118 118 118 118 119 119 119 75 72 68 63 38 2 127 3x A MECHANICAL PARTS 39965 000 06538ASSY HOLDER LEFT 49965 000 06539ASSY HOLDER RIGHT 129965 000 06540ASSY CARRIAGE 1 (TOP) 199965 000 06541ASSY GEAR STAR 489965 000 06542ASSY MOTOR

41、 CARRIAGE 499965 000 06543ASSY MOTOR DRAWER 539965 000 06544BELT DRAWER 549965 000 06545BELT CARRIAGE 579965 000 06546DAMPER RUBBER REAR 589965 000 06547DAMPER RUBBER FRONT 599305 022 30103CD DRIVE VAM2201/03 (1x SPEED) 599305 022 30203CD DRIVE VAM2202/03 (2x SPEED) 598203 303 85780CD DRIVE VAM2204/

42、03 (4x SPEED) 629965 000 06548ASSY CARRIAGE 2 (MIDDLE) 639965 000 06549ASSY CARRIAGE 3 (BOTTOM) 714822 277 11652SWITCH (SW6-SW8) 729965 000 06550SWITCH (SW2-SW5) 3103 309 052503DTC MECH. CMCJ-01-13 (1xSPEED) 3103 309 052603DTC MECH. CMCJ-01-14(2xSPEED) 3103 309 052703DTC MECH. CMCJ-01-15(4xSPEED) Complete Mechanic - CD Drive already included