Philips 3DiskChanger free download

File name 3DiskChanger_Training.pdf

3 Disc Tray Changer 3DTC Table of Contents 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 © Copyright 2001 Philips Consumer Electronics B.V. Eindhoven, The Netherlands CLASS 1 LASER PRODUCT 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. Published by HB 0148 Service Audio Printed in The Netherlands Subject to modification © 3103 785 25140 2 WARNING CHARGED CAPACITORS ON THE SERVO BOARD MAY DAMAGE THE CD DRIVE ELECTRONICS WHEN CONNECTING A NEW CDM MECHANISM. THATґS WHY, BESIDES THE SAFETY MEASURES LIKE · SWITCH OFF POWER SUPPLY · ESD PROTECTION ADDITIONAL ACTIONS MUST BE TAKEN BY THE REPAIR TECHNICIAN. 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 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 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 this solder joint must be removed after connection the drive to the set. 3 WIRING Module WIRING CD Drive 4 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 closed Carriage #1 is in Play position Carriage #2 and #3 are in home position 2 3 1 Drawer Clamper Carriage The Changer looks like 2. Tray open. The Drawer is moved out Carriage #2 and #3 remain in home position 2 3 1 Drawer Clamper Carriage The Changer looks like 5 3. Carriage extra. This position is necessary to get access to the lower carriage. It is also used during disc change. Carriage extra position 2 3 1 Drawer Clamper Carriage The changer looks like The various states are recognized by seven switches. For functions see truth table on next page. SW4&5 Location of switch