Panasonic DLS6 Service Manual
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Panasonic DLS6 Service Manual

Panasonic DLS6 Service Manual

Mechanism unit
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CONTENTS
DLS6
Page
2
3
4
5
6
8
© 2008 Matsushita Electric Industrial Co. Ltd.. All
rights
distribution is a violation of law.
ORDER NO. MD0801003CE
Mechanism Unit
reserved.
Unauthorized
copying
A6
Page
11
17
32
33
39
41
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  • Page 1: Table Of Contents

    ORDER NO. MD0801003CE Mechanism Unit DLS6 CONTENTS Page Page 1 Mechanism Overview (DLS6) 7 Mechanism Operation Description 2 Prevention of Electrostatic Discharge (ESD) to 8 Assembling & Disassembling Electrostatically Sensitive (ES) Devices 9 Disassembly Flow 3 Precaution of Laser Diode...

  • Page 2: Mechanism Overview (Dls6)

    DLS6 1 Mechanism Overview (DLS6) DLS6 mechanism is a single tray mechanism used for CD/DVD models. DVD system control is through the DVD/HDMI module except for traverse control.

  • Page 3: Prevention Of Electrostatic Discharge (Esd) To Electrostatically Sensitive (Es) Devices

    DLS6 2 Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip"...

  • Page 4: Precaution Of Laser Diode

    DLS6 3 Precaution of Laser Diode CAUTION : This product utilizes a laser diode with the unit turned "on", invisible laser radiation is emitted from the pickup lens. Wavelength: 655 nm (DVD)/785 nm (CD) Maximum output radiation power from pickup: 100 µW/VDE Laser radiation from the pickup unit is safety level, but be sure the followings: 1.

  • Page 5: About Lead Free Solder (Pbf)

    DLS6 4 About Lead Free Solder (PbF) 4.1. Service caution based on legal restrictions 4.1.1. General description about Lead Free Solder (PbF) The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this equipment in considering the globally environmental conservation.

  • Page 6: Handling Precautions For Traverse Unit

    DLS6 5 Handling Precautions for Traverse Unit The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be taken avoid caution to electrostatic breakdown when servicing and handling the laser diode in the traverse unit.
  • Page 7 DLS6 5.2. Grounding for electrostatic breakdown prevention Some devices such as the CD/DVD player use the optical pickup (laser diode) and the optical pickup will be damaged by static electricity in the working environment. Proceed servicing works under the working environment where grounding works is completed.

  • Page 8: Mechanism Drive Unit

    DLS6 6 Mechanism Drive Unit 6.1. Gears’ operations (Playability) The arrows indicate the movement of the gears during play operation.
  • Page 9 DLS6 6.2. Traverse slide plate/Sub rack/OPU assembly The arrows indicate the movement of the parts during play operation.
  • Page 10 DLS6 6.3. Switch / Motors...

  • Page 11: Mechanism Operation Description

    DLS6 7 Mechanism Operation Description 7.1. Open/Close Operation Below shows the inter relation of parts during the open & close operations.
  • Page 12 DLS6 7.2. Play Operation Below shows the inter relation of parts during the play operation.
  • Page 13 7.3. Initialization During the power-up of main unit (using DLS6 mechanism), the state of switches is sensored by the micro-p IC and the traverse motor is adjusted accordingly. (This is the initialization process). Note: Refer to Table 1 for the initialization process. Figures 6 & 7 show the flow of the initialization.
  • Page 14 DLS6...
  • Page 15 DLS6 7.4. Fail safe...
  • Page 16 DLS6 7.5. Switches and motors...

  • Page 17: Assembling & Disassembling

    DLS6 8 Assembling & Disassembling 8.1. Flow Chart 8.1.1. Disassembly flow chart Below describes the disassembly flow for the mechanism.
  • Page 18 DLS6 8.1.2. Assembly flow chart Below describes the assembly flow for the mechanism.
  • Page 19 DLS6 8.2. Preparation of Service jig 8.3. Checking of Mechanism unit 8.3.1. Before disassembling Step 1: Check if the sub rack is disengaged from the traverse slide plate before disassembly. Step 1: Cut the gear out from the clamp plate unit.
  • Page 20 DLS6 Step 1: Release the FFC from the slot. Step 4: Insert the FFC behind the slot. 8.3.2. Before assembling Step 2: Use service jig to turn the gear counter clockwise. Step 3: Check that the screw is in this postion then stop turning Step 1: Check if the sub rack is below the guide line before the service jig.
  • Page 21 Do ensure that the traverse unit is in the conditiion to be disassembled, please refer to section 8.3.1. Note: Mechanism unit (DLS6) reliability test must be carry out in complete unit or using the Reliability P.C.B. (Refer to section 10).
  • Page 22 DLS6 Caution: Ensure the OPU is face upwards, avoid touching the surface of the traverse unit. Step 3: Release the FFC as arrows shown. Step 4: Lift the traverse unit up by approximately 45° as shown. Step 5: Slide out the traverse unit as arrow shown.
  • Page 23 DLS6 8.4.2. Disassembly of clamp plate unit Caution: Avoid touching the drysurf areas. Below diagram shows the " Follow the (Step 1) to (Step 5) of item 8.4.1. areas for the drysurf to be applied. Step 1: Release the catches at both sides of the clamp plate unit.
  • Page 24 DLS6 8.4.3. Disassembly of tray " Follow the (Step 1) to (Step 5) of item 8.4.1. " Follow the (Step 1) to (Step 3) of item 8.4.2. Step 4: Release the catches respectively as arrows shown to remove the tray.
  • Page 25 DLS6 8.4.4. Disassembly of tray drive gear 3 8.4.5. Disassembly of traverse slide plate " Follow the (Step 1) to (Step 5) of item 8.4.1. " Follow the (Step 1) to (Step 5) of item 8.4.1. " Follow the (Step 1) to (Step 3) of item 8.4.2.
  • Page 26 DLS6 8.4.6. Disassembly of traverse lock spring " Follow the (Step 1) to (Step 5) of item 8.4.1. " Follow the (Step 1) to (Step 3) of item 8.4.2. " Follow the (Step 1) to (Step 4) of item 8.4.3.
  • Page 27 DLS6 8.5. Assembling Procedure 8.5.2. Assembly of traverse slide plate 8.5.1. Assembly of traverse lock spring Step 1: Hold both points (A) and (B) of the traverse slide plate, slot it into the grooves. Step 1: Fix the traverse lock spring as arrows shown respectively.
  • Page 28 DLS6 8.5.3. Assembly of tray drive gear 3 8.5.4. Assembly of tray Step 1: Slide the traverse slide plate right to the end. Step 1: Insert the tray drive gear 3 into the slot as shown, press down until hear a “click” sound is heard.
  • Page 29 DLS6 8.5.5. Assembly of clamp plate unit Step 3: Slide the tray in fully. Note: Ensure the groove below the tray is aligned with the traverse slide plate’s guide when sliding the tray in. Step 1: Align the clamp plate unit as shown.
  • Page 30 DLS6 8.5.6. Assembly of traverse unit Caution: " Do ensure that the traverse unit is in the conditiion to be assembled, please refer to section 8.3.1. " Removal of the short pin is necessary for replacement of new traverse unit.
  • Page 31 DLS6 Step 6: Release the guide. Step 3: Slot the traverse unit at approximately 45° into the mecha chassis as arrow shown. Step 7: Push the traverse slide plate (rib) to lock the traverse unit in. Note: Ensure the bosses fix exactly onto the guides.

  • Page 32: Disassembly Flow

    DLS6 9 Disassembly Flow...

  • Page 33: Dls6 Mechanism Reliability

    DLS6 10 DLS6 Mechanism Reliability Purpose: To test the DLS6 mechanism unit operation by using the Reliability P.C.B. before installation into the main unit. 10.1. Setup Connection Below diagram shows the set-up necessary to carry out the reliability of mechanism.
  • Page 34 DLS6 10.2. Jig’s Flow Diagram...
  • Page 35 DLS6 " Refer following for the suggested location for the mounting of the outer-switch (Part No. K0L1BA000134). Location of outer-switch...
  • Page 36 DLS6 10.2.1. Flow operation...
  • Page 37 DLS6...
  • Page 38 DLS6...

  • Page 39: Exploded Views

    DLS6 11 Exploded Views...
  • Page 40 DLS6...

  • Page 41: Replacement Parts List

    DLS6 12 Replacement Parts List Notes: " Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant (resistors), high-quality sound (capacitors), low-noise (resistors), etc. are used. When replacing any of these components, be sure to use only manufacturers’s specified parts shown in the parts list.

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