Panasonic BRS14P Service Manual
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Panasonic BRS14P Service Manual

Panasonic BRS14P Service Manual

Mechanism unit
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TABLE OF CONTENTS

1 Mechanism Overview (BRS14P)----------------------------- 2
1.1. Mecha Chassis Assembly / Tray ---------------------- 2
1.2. Traverse Unit ----------------------------------------------- 2
2 Warning -------------------------------------------------------------- 4
2.2. Precaution of Laser Diode------------------------------- 5
3 Mechanism Operation -----------------------------------------10
3.1. Close/Open Operation ----------------------------------10
3.2. Open/Close Operation ---------------------------------- 11
3.3. Initialization-------------------------------------------------12
3.4. Fail Safe Mode --------------------------------------------14
4.1. Flow Chart--------------------------------------------------16
Model No.
PAGE
4.2. Disassembly of Dust Cover---------------------------- 17
4.3. Replacement of Tray ------------------------------------ 18
4.4. Replacement of Traverse Unit ------------------------ 20
4.5. Replacement of Mid Base ----------------------------- 31
4.6. Replacement of Slide Cam ---------------------------- 32
4.7. Replacement of Belt------------------------------------- 34
4.8. Replacement of Pulley Gear -------------------------- 35
4.9. Replacement of Drive Gear --------------------------- 36
4.10. Replacement of Loading P.C.B. ---------------------- 37
Parts List --------------------------------------------------- 43
© Panasonic Corporation 2012. All rights reserved.
Unauthorized copying and distribution is a violation of
law.
Mechanism Unit
BRS14P
PSG1201008CE
A6
PAGE

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Summary of Contents for Panasonic BRS14P

  • Page 1: Table Of Contents

    5.1. Exploded View and Mechanical replacement 3.3. Initialization-------------------------------------------------12 Parts List --------------------------------------------------- 43 3.4. Fail Safe Mode --------------------------------------------14 4 Disassembly and Assembly Instructions ---------------15 4.1. Flow Chart--------------------------------------------------16 © Panasonic Corporation 2012. All rights reserved. Unauthorized copying and distribution is a violation of law.

  • Page 2: Mechanism Overview (Brs14P)

    1 Mechanism Overview (BRS14P) 1.1. Mecha Chassis Assembly / Tray 1.2. Traverse Unit...
  • Page 3 1.2.1. Optical Pickup / Spindle Motor / Stepping Motor...

  • Page 4: Warning

    2 Warning 2.1. Prevention of Electro Static Discharge (ESD) to Electrostatically Sensi- tive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip”...

  • Page 5: Precaution Of Laser Diode

    2.2. Precaution of Laser Diode CAUTION! THIS PRODUCT UTILIZES A LASER. USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE. Caution: This product utilizes a laser diode with the unit turned "on", invisible laser radiation is emitted from the pickup lens. Wavelength: 790 nm (CD) / 660 nm (DVD) / 405 nm (BD) Maximum output radiation power from pickup: 100 μW/VDE Laser radiation from the pickup unit is safety level, but be sure the followings:...

  • Page 6: Service Caution Based On Legal Restrictions

    2.3. Service caution based on Legal restrictions 2.3.1. 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. The normal solder is the alloy of tin (Sn) and lead (Pb).

  • Page 7: Handling Precaution For Traverse Unit

    2.4. Handling Precaution 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 8: Cautions To Be Taken In Handling The Optical Pickup Unit

    Cautions to Be Taken in Handling the Optical Pickup Unit 2.4.1. 1. Never look at the laser light beam directly or directly the laser light beam at exposed skin, the laser light beam has the poten- tial to cause serious eye and skin damage. 2.

  • Page 9: Grounding For Electrostatic Breakdown Prevention

    Grounding for electrostatic breakdown prevention 2.4.2. Some devices such as the CD 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. 2.4.2.1.

  • Page 10: Mechanism Operation

    3 Mechanism Operation 3.1. Close/Open Operation Close Open T.S.P. Tray state SW ON SW ON stopper stopper 129.2 126.9 Tray TT center Tray Rack engage T.S.P. Rack engage Slide CAM 49.9 51.6 TT center 33.4 31.9 R8.45 31.1 41.7 30.1 38.6 7.71 TRV Base...

  • Page 11: Open/Close Operation

    3.2. Open/Close Operation Open Close Tray T.S.P. state SW ON SW ON stopper stopper 129.2 126.9 Tray TT center Tray Rack engage T.S.P. Rack engage 51.6 Slide CAM 49.9 38.6 33.8 41.7 TT center R8.45 31.9 30.1 31.1 7.71 TRV Base Front boss Close SW Open SW...

  • Page 12: Initialization

    3.3. Initialization During the power-up of main unit the state of switches is sensored by the micro-p IC and the traverse motor is adjusted accordingly. Note : Refer to Table 1 for the initialization process. Condition for Initialization Processing: LOAD-SW LD-MOTOR INNER-SW TRV-MOTOR...
  • Page 13 3.3.2. When there is Initialization Initialization Processing TRV-MOTOR INNER-SW = L ? TRV-MOTOR INNER-SW = H ? TRV-MOTOR INNER-SW = L ? TRV-MOTOR Brake EXIT...

  • Page 14: Fail Safe Mode

    3.4. Fail Safe Mode * Fail safe is a function for recovery of tray movement if mechanism cannot carry out tray open or close within a specified time. Below are the fail safe specification at each position. Refer to table 2. Fail Safe specification state Close position...

  • Page 15: Disassembly And Assembly Instructions

    4 Disassembly and Assembly Instructions Caution Note: • This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo- nents for the unit. (You may refer to the section of “Main components and P.C.B Locations” as described in the service manual) •...

  • Page 16: Flow Chart

    4.1. Flow Chart Below describes the disassembly flow for the mechanism.

  • Page 17: Disassembly Of Dust Cover

    4.2. Disassembly of Dust Cover Step 2 : Release 2 catches. Caution : During assembling, ensure the Top Dust Cover is fully catched. Step 1 : Release 2 catches. Caution : During assembling, ensure the Top Dust Cover is fully catched.

  • Page 18: Replacement Of Tray

    Step 3 : Remove Dust Cover Top & Bottom. 4.3. Replacement of Tray Refer to “Disassembly of Dust Cover”. 4.3.1. Disassembly of Tray Step 1 : Use a pin to push the Slide Cam until it come to a stop. The Tray will open automatically.
  • Page 19 Step 3 : Press the catches inwards & remove the tray. 4.3.2. Assembly of Tray Step 1 : Insert the Tray into the guide rails as picture shown. Step 2 : Align the guides of the Slide Cam with the groove of the tray.

  • Page 20: Replacement Of Traverse Unit

    Step 3 : Gently push in the tray until it is fully closed. 4.4. Replacement of Traverse Unit Caution : Do not use strong force during pushing of the Refer to “Disassembly of Dust Cover”. tray. Refer to “Disassembly of Tray”. Repeat Step 1 to Step 2, when the tray cannot be push for- wards or when it is jammed.
  • Page 21 Step 2 : Lift up the OPU FFC Sheet from the Catches. Step 4 : Release 45P FFC from the Guide. Step 3 : Push the OPU FFC Sheet from the guides. Step 5 : Release 5P FFC. Caution : Avoid using strong force, to prevent damage on the FPC.
  • Page 22 Step 7 : Press down the hook downwards. Step 9 : Press down the hook downwards. Step 8 : Lift up the Turning Shaft of the Mid Base Unit as Step 10 : Release the Turning Shaft of the Mid Base Unit as shown.
  • Page 23 Step 11 : Align the bosses of the Mid Base Unit with the Step 13 : Hold the arms of Mid Base, slightly pull backward and grooves of the Slide Cam. lift up the Traverse unit as shown. Step 14 : While holding the Traverse unit, insert the Screw- driver at the Damper (Location A).
  • Page 24 Step 16 : Insert the Screwdriver at the Damper (Location B). Step 19 : Before removing the optical pick-up unit, please apply Step 17 : Push up the Traverse unit as shown. an ESD Prevention Bag (RPFC0114) to the OPU FFC. Step 18 : Remove the Traverse unit.
  • Page 25 4.4.2. Assembly of Traverse Unit Step 1 : Desolder the solder point to open circuit. Step 2 : Connect OPU FFC and remove ESD Prevention Bag (RPFC0114) from the 45P FFC. Note : Before installing, please check the Traverse unit is indi- cated with the safety mark “415”...
  • Page 26 Step 3 : Insert the Traverse Unit underneath of the BD Mecha- Step 5 : Insert the Screwdriver to the Damper and push to fix nism chassis. Damper with Traverse Unit onto the BD Drive as shown. Caution : During assembling, ensure the Traverse unit do Caution : During assembling, ensure the Traverse unit do not hit to the Slide Cam.
  • Page 27 Step 7 : Align the grooves of the Slide Cam with the bosses of Caution : Ensure the Mid Base bosses is seated properly onto the shaft of the Slide Cam. the Mid Base. Step 8 : Hold the Slide Cam, sligthly pull backward the Mid Base and insert it into the grooves of the Slide Cam.
  • Page 28 Step 10 : Push and press the turning shaft of Mid Base. A Step 12 : Insert the 45P FFC into the guides. “click” sound is heard when it is fully insert. Caution : Do not exert strong force during inserting the 45P FFC into the guides as it may damage or broken.
  • Page 29 Step 13 : Insert the OPU FFC Sheet into the Guide as show. A Step 14 : Insert 4P FPC into the guides. “click” sound is heard when the OPU FFC is fully catched. Step 15 : Insert 5P FFC into the guides. Caution : Do not exert strong force when inserting the FFC into the guides as it may damage or broken.
  • Page 30 4.4.3. Checking point after replacement of Traverse Unit Step 1 : When Traverse unit in up position. Ensure the gap between Clamper and Mecha Chassis should more that 0.4mm to prevent rubbing. Step 2 : If the gap is less that 0.4mm condition, then proceed below checking points of Dampers.

  • Page 31: Replacement Of Mid Base

    4.5. Replacement of Mid Base 4.5.2. Assembly of Mid Base Refer to “Disassembly of Dust Cover”. Step 1 : Align the Mid Base parallel with Traverse unit. Refer to “Disassembly of Tray”. Step 2 : Push to fix Mid Base into the Damper as shown. Refer to “Disassembly of Traverse Unit”.

  • Page 32: Replacement Of Slide Cam

    4.6. Replacement of Slide Cam Step 3 : Pull forward catches as shown to release the Slide Cam. Refer to “Disassembly of Dust Cover”. Refer to “Disassembly of Tray”. Refer to “Disassembly of Traverse Unit”. 4.6.1. Disassembly of Slide Cam Step 1 : Insert the Paper clip into the Groove, press and release the guide as shown Step 2 : Slide the Slide Cam to the end.
  • Page 33 4.6.2. Assembly of Slide Cam Step 4 : Press the Slide Cam and make sure it is fully catched onto the BD Mechanism. Step 1 : Place the Slide Cam into the BD Mechanism as shown. Step 2 : Slide the Slide Cam to the end as shown. Step 3 : Upset the BD Mechanism.

  • Page 34: Replacement Of Belt

    4.7. Replacement of Belt 4.7.2. Assembly of Belt Refer to “Disassembly of Dust Cover”. Step 1 : Install the Belt. Refer to “Disassembly of Tray”. Refer to “Disassembly of Traverse Unit”. Refer to “Disassembly of Slide Cam”. 4.7.1. Disassembly of Belt Step 1 : Remove the Belt as shown.

  • Page 35: Replacement Of Pulley Gear

    4.8. Replacement of Pulley Gear 4.8.2. Assembly of Pulley Gear Refer to “Disassembly of Dust Cover”. Step 1 : Align the center of the Pully Gear vertically and fix it Refer to “Disassembly of Tray”. into the boss. A “click” sound is heard. Refer to “Disassembly of Traverse Unit”.

  • Page 36: Replacement Of Drive Gear

    4.9. Replacement of Drive Gear 4.9.2. Assembly of Drive Gear Refer to “Disassembly of Dust Cover”. Step 1 : Fix the Drive Gear into the boss as shown. Refer to “Disassembly of Tray”. Refer to “Disassembly of Traverse Unit”. Refer to “Disassembly of Slide Cam”. Refer to “Disassembly of Belt”.

  • Page 37: Replacement Of Loading P.c.b

    4.10. Replacement of Loading P.C.B. Step 2 : Release the Red and Black Wires from the slots. Refer to “Disassembly of Dust Cover”. Refer to “Disassembly of Tray”. Refer to “Disassembly of Traverse Unit”. Refer to “Disassembly of Slide Cam”. Refer to “Disassembly of Belt”.
  • Page 38 Step 4 : Release the catch. 4.10.2. Assembly of Loading P.C.B. Step 5 : Lift up and remove the Loading P.C.B.. Step 1 : Insert the 5P FFC through the slot of BD Mechanism. Step 2 : Insert the Loading P.C.B. into slots. Caution : Ensure that the Loading P.C.B.

  • Page 39: Replacement Of Loading Motor Unit

    Step 4 : Solder pins of the Red Wires (+) “R” & Black Wires (-) 4.11. Replacement of Loading Motor “B” on the Loading P.C.B.. Unit Caution : Soldering temperature 350°C ± 5°C, soldering time is 3 sec. Refer to “Disassembly of Dust Cover”. Refer to “Disassembly of Tray”.
  • Page 40 Step 3 : Remove the Loading Motor Unit as shown. 4.11.2. Assembly of Loading Motor Unit Step 1 : Align and insert the Loading Motor Unit with the slot on the BD Mechanism. Step 2 : Press the Loading Motor Unit as shown, ensure. A “click”...
  • Page 41 Step 3 : Solder pins of the Red Wires (+) “R” & Black Wires (-) “B” on the Loading P.C.B.. Step 4 : Dressed the wire as shown.

  • Page 43: Exploded View And Replacement Parts List

    Exploded View and Mechanical replacement Parts List 5.1.1. Cabinet Parts Location BOTTOM VIEW TOP VIEW BACK VIEW TOP VIEW SIDE VIEW 149-1 TOP VIEW PART NUMBER GREASE VZG0363 GREASE RZGGPG641 DRY SURF RZGGA6063E BOTTOM VIEW BRS14P BLU-RAY LOADING MECHANISM DRAWINGS...
  • Page 45 DRIVE GEAR RXQ2076 LOADING MOTOR UNIT VMD6389-1 MECHA CHASSIS VMD6390 SLIDE CAM VMG1720 BELT RMG0852-K DAMPER VWJ2222-1 PICK FFC VXA9006 BRS14P TRV UNIT JIGS & RMQ1954 DUST COVER TOP RMQ1955 DUST COVER BOT- RFKB4709A LOADING PCB 149-1 K0L1CB000004 SW PUSH IPSG1201...

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