Philips 3 DTC TRAINING Service Manual.pdf

《Philips 3 DTC TRAINING Service Manual.pdf》由会员分享，可在线阅读，更多相关《Philips 3 DTC TRAINING Service Manual.pdf（20页珍藏版）》请在收音机爱好者资料库上搜索。

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 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 drive 4. Remove papercl

4、ip 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 WHY, BESIDES THE SAFETY M

5、EASURES 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 functionality of the CD drive t

6、his solder joint must be removed after connection the drive to the set. 3 WIRING Module WIRING CD Drive Brief description On the next pages various actions of the 3 Disc Tray Changer are described with simplified drawings. 1. Initial state. After Power on the changer is in this position. The drawer

7、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 Clamper 2 3 1 Carriage Drawer Clamper 4 5 3. Carriage extra. This positi

8、on 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 Carriage extra position Drawer Clamper SW8SW7SW6 SW2&3 SW4&5 Location of swi

9、tches 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 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

10、 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 Time 200ms/div ActionRecognition CCW STOP CW CCW STOP CW SW 2 SW 3 SW 4 S

11、W 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 ActionRecognition CCW STOP CW CCW STOP CW SW 2 SW 3 SW 4 SW 5 SW 6 SW 7 SW 8 S

12、witches 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 ActionRecognition CCW STOP CW CCW STOP CW SW 2 SW 3 SW 4 SW 5 SW 6 SW 7 SW

13、 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 3 SW 4 SW 5 SW 6 SW 7 SW 8 Switches Carriage motor Drawer motor initial

14、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 #3. Carriage #2 moves in extra position. 4. Load carriage #3. 5. Press op

15、en #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. Carriage #2 moves down. 11. Carriage #1 moves in home position. 12. Ca

16、rriage #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 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

17、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 playing #1. See also timing diagrams (page 8). Additional hints: Gears pos. 4

18、 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 carriages (e.g. #2 mixed up with #3) causes endless forward/backward changin

19、g 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 moves outside. 5. Disconnect mains. 6. Loosen 2x screw (see picture 2).

20、 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 58. 12. Insert dampers into new CD-drive. 13. Solder wires to new CD-dri

21、ve (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 clamper - 2x screw (see picture 2). 20. Mount metal cover of the loader u

22、nit - 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 and side cover of the set and remove the metal cover of the loader unit a

23、s 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 open as long as the clamper is in upper position and the clamper cannot

24、 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 releases the tray. picture 5 picture 6 13 picture 7 3. Shift lever (block

25、) 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 release guidings. Jammed carriage, blocked tray (continued) picture 8 6

26、. 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: The 3 cartridges are different (see picture 10). 2. Mount clamper (2x scre

27、w - 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 moves down disconnect mains. 6. Open tray - using lever (block) as shown i

28、n 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. Select CD 3. Clamper moves up carriage #3 (not yet inserted) will be moved

29、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. Insert carriage #3 above CD-drive. 13. Lower clamper, close tray, connect m

30、ains. 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 lever (block) backwards as shown in picture 7 Tray moves approx. 1cm outsi

31、de. 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 shown in detail A resp. detail B come loose easily! picture 12 picture

32、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 in the other direction remaining carriage moves right. 9. Lift carriage

33、 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. Detail C picture 17 Detail D 17 Replacing the Gears (continued) 13. Rep

34、lace 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 4x screw (see picture17,D). 15. Check if gear is aligned as shown in pict

35、ure 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 right side of carriage #3 (= side with the toothrack) as shown in pictu

36、re 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. After reaching the endposition the upper wheel (picture19 B) starts turning.

37、 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 picture 22 picture 23 Assembling the Tray 24. Lift back side of tray as high a

38、s 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 other side of tray as shown in picture 26. 28. Move tray inside (simply p

39、ush). 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 29 39 40 113 49 71 48 123 115 31 28 26 24 27 60 113 19 19 3 12 62 56 118

40、 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 CARRIAGE 499965 000 06543ASSY MOTOR DRAWER 539965 000 06544BELT DRAWER

41、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 VAM2204/03 (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