Service Manuals, User Guides, Schematic Diagrams or docs for : TOSHIBA DVD RD-X2 hfe_toshiba_rd-x2-u_service_en

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                   FILE NO. 810-200220




SERVICE MANUAL



HDD/DVD VIDEO RECORDER
                 RD-X2U




                             Oct., 2002 5
LASER BEAM CAUTION LABEL




When the power supply is being turned on, you may not remove this laser beam caution label. If it removes, radiation of a
laser may be received.


PREPARATION OF SERVICING
Pickup Head consists of a laser diode that is very susceptible to external static electricity.
Although it operates properly after replacement, if it was subject to electrostatic discharge during replacement,
its life might be shortened. When replacing, use a conductive mat, soldering iron with ground wire, etc. to
protect the laser diode from damage by static electricity.
And also, the LSI and IC are same as above.




                                                        Ground conductive

                                                        wrist strap for body.




                      Soldering iron

                      with ground wire

                      or ceramic type




                                                                                1M   9
                                       Conductive mat
                                                                 The ground resistance

                                                                 between the ground line

                                                                 and the ground is less than 10   9   .
SAFETY NOTICE
                                              SAFETY PRECAUTIONS
LEAKAGE CURRENT CHECK
Plug the AC line cord directly into a 120V AC outlet (do      Measure the AC voltage across the 1500 W resistor.
not use an isolation transformer for this check). Use an      The test must be conducted with the AC switch on and
AC voltmeter, having 5000 W per volt or more sensitivity.     then repeated with the AC switch off. The AC voltage
Connect a 1500 W 10 W resistor, paralleled by a 0.15 mF       indicated by the meter may not exceed 0.3 V. A reading
150V AC capacitor between a known good earth ground           exceeding 0.3 V indicates that a dangerous potential
(water pipe, conduit, etc.) and all exposed metal parts of    exists, the fault must be located and corrected.
cabinet (antennas, handle bracket, metal cabinet              Repeat the above test with the DVD VIDEO RECORDER
screwheads, metal overlays, control shafts, etc.).            power plug reversed.
                                                              NEVER RETURN A DVD VIDEO PLAYER TO THE
                                                              CUSTOMER WITHOUT TAKING NECESSARY
                                                              CORRECTIVE ACTION.



                                        READING SHOULD NOT EXCEED 0.3V



                                                                               AC VOLTMETER
                        DVD VIDEO PLAYER                                       (5000   9 per volt
                                                                               or more sensitivity)




                                                                               Good earth ground
                                                                               such as a water pipe,
                                                                    1500   9   conduit, etc.
                                                                    10 W




                                                             0.15   mF 150V AC
                       AC OUTLET
                                      Test all exposed metal.
                                      Voltmeter Hook-up for Leakage Current Check




                                                              The lightning flash with arrowhead symbol, within an
                                                              equilateral triangle, is intended to alert the user to the
                                                              presence of uninsulated "dangerous voltage" within the
                                                              product's enclosure that may be of sufficient magnitude to
                                                              constitute a risk of electric shock to persons.


                                                              The exclamation point within an equilateral triangle is
                                                              intended to alert the user to the presence of important
                                                              operating and maintenance (servicing) instructions in the
                                                              literature accompanying the appliance.
                                                 CONTENTS
                                                   SECTION 1
                                              GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS                                  2. LOCATION OF MAIN PARTS AND
   Specifications                                             MECHANISM PARTS
                                                              2-1. Location of Main Parts
                                                              2-2. Standing PC Boards for Servicing




                                                    SECTION 2
                                   PART REPLACEMENT AND ADJUSTMENT PROCEDURES
1. REPLACEMENT OF MECHANICAL PARTS                              1-2. PC Board Replacement
   1-1. Cabinet Replacement                                     1-2-1. Digital PC Board
   1-1-1. Top Cover                                             1-2-2. Mother PC Board
   1-1-2. HDD                                                   1-2-3. Power PC Board
   1-1-3. Front Panel                                           1-2-4. Battery PC Board
   1-1-4. Tray door                                             1-2-5. Front Display, Front Jack and Front Switch PC Board
   1-1-5. Operation panel door
   1-1-6. RAM Drive
   1-1-7. Fan
   1-1-8. Rear Panel




                                                   SECTION 3
                                              SERVICING DIAGRAMS
1. CIRCUIT SYMBOLS AND                                        4-3. Front Jack Circuit Diagram
   SUPPLEMENTARY EXPLANATION                                  4-4. Front Display Circuit Diagram
   1-1. Precautions for Part Replacement                      4-5. Battery Circuit Diagram
   1-2. Solid Resistor Indication                             4-6. Mother Circuit Diagram
   1-3. Capacitance Indication                                4-6-1. Timer Circuit Diagram
   1-4. Inductor Indication                                   4-6-2. Audio Circuit Diagram
   1-5. Waveform and Voltage Measurement                      4-6-3. Video / Tuner Circuit Diagram
   1-6. Others                                                4-7. Digital Circuit Diagram
2. PRINTED WIRING BOARD AND                                5. PC BOARDS
   SCHEMATIC DIAGRAM                                          5-1. Front Switch PC Board
3. BLOCK DIAGRAMS                                             5-2. Front Jack PC Board
   3-1. Overall Block Diagram                                 5-3. Battery PC Board
4. CIRCUIT DIAGRAMS                                           5-4. Front Display PC Board
   4-1. Power Supply Circuit Diagram                          5-5. Mother PC Board
   4-2. Front, Switch Circuit Diagram                         5-6. Digital PC Board




                                                   SECTION 4
                                                   PARTS LIST
SAFETY PRECAUTION                                          4. EXPLODED VIEWS
NOTICE                                                        4-1. Packing Assembly
ABBREVIATIONS                                                 4-2. Chassis Assembly
  1. Integrated Circuit (IC)                               5. PARTS LIST
  2. Capacitor (Cap)
  3. Resistor (Res)
                                                         GENERAL DESCRIPTIONS
                             SECTION 1




                                                              SECTION 1
                        GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS
Please refer to the owner's manual about the contents.
2. LOCATION OF MAIN PARTS AND MECHANISM PARTS
2-1. Location of Main Parts

             HDD1 HDD UNIT                                      RAM1 RAM DRIVE




                                                                        ZG45 FAN

                                        Fig. 1-2-1



2-2. Standing PC Boards for Servicing

          EU05 Mother PC board                           EU01 Degital PC board

          EU03 Front display
          PC board




                                                          EU02 Power PC board

                                                         EU57 Battery PC board

         EU55 Front jack PC board                    EU04 Front switch PC board


                                        Fig. 1-2-2
                            SECTION 2
                      PART REPLACEMENT AND
                     ADJUSTMENT PROCEDURES
                         CAUTIONS BEFORE STARTING SERVICING
 Electronic parts are susceptible to static electricity and may easily damaged, so do not forget to take a proper grounding
 treatment as required.
 Many screws are used inside the unit. To prevent missing, dropping, etc. of the screws, always use a magnetized screw-
 driver in servicing. Several kinds of screws are used and some of them need special cautions. That is, take care of the
 tapping screws securing molded parts and fine pitch screws used to secure metal parts. If they are used improperly, the
 screw holes will be easily damaged and the parts can not be fixed.




                                                                                                                                 ADJUSTMENT PROCEDURES
                                                                                                                                  PART REPLACEMENT AND
1. REPLACEMENT OF MECHANICAL PARTS




                                                                                                                                        SECTION 2
1-1. Cabinet Replacement
1-1-1. Top Cover                                                  1-1-2. HDD
1. Remove seven screws (1), then remove the top cover             1. Disconnect a connector (1).
   (2).                                                           2. Remove four screws (2) and a connector (3), then
                                                                     remove the HDD (4).
       Screws (1)
                                                                      Screws (2)                Connector (3)
                                         Screws (1)



                                                                      HDD (4)




     Top cover (2)                              Screws (1)




                                                                                                                 Connector (1)




                                                                                           Fig. 2-1-2
                        Fig. 2-1-1
1-1-3. Front Panel                                                   1-1-5. Operation panel door
1. Remove the top cover. (Refer to item 1-1-1.)                      1. Open the operation panel door (1).
2. Remove the HDD. (Refer to item 1-1-2.)                            2. Release two claws and unhinge the door (1). (Same
3. Remove five screws (1).                                              operation on the left and right doors.)
4. Peel off two tapes (2).
5. Disconnect a connector (3) and three flexible cables
   (4).
6. Release five claws, then remove the front panel (5).

             Flexible cable (4)
                                                                                                                     Front panel
                                                Flexible cable (4)
       Tape (2)                                                        Claw

Screws (1)



                                                                                                   Claw



                                                                                                             Hinge
                                                                        Operation panel door (1)


Claw

                                                         Tape (2)                             Fig. 2-1-5
   Claws                                 Connector (3)

                                        Claw
                                                                     1-1-6. RAM Drive
                      Front panel (5)
                                                                     1. Remove the HDD. (Refer to item 1-1-2.)
                            Fig. 2-1-3                               2. Remove the front panel. (Refer to item 1-1-3.)
                                                                     3. Disconnect a connector (1).
                                                                     4. Remove four screws (2), disconnect a connector (3),
1-1-4. Tray door
                                                                        then remove the RAM drive (4).
1. Remove a spring (1).
2. Remove the tray door (2) while slightly bending it
                                                                      Screws (2)
                                                                                                           RAM drive (4)

                                                  Spring (1)




                                                                                                                     Connector (3)




        Tray door (2)




                            Fig. 2-1-4




                                                                                     Connector (1)




                                                                                              Fig. 2-1-6
1-1-7. Fan                                                         1-2. PC Board Replacement
1. Remove a connector (1) and two screws (2) and the
                                                                   1-2-1. Digital PC Board
   fan (3).
                                                                   1. Lift two board stoppers up in the direction of the
                                                                      arrow, remove the digital PC board (2) and disconnect
                       Fan (3)
                                                                      two connectors (3).


                                                                                                          Digital PC board (2)




  Connector (1)                                                      Connector (3)


                                                      Screws (2)




                                                                     PC board stopper (1)




                                                                                            Fig. 2-1-9

                            Fig. 2-1-7
                                                                   1-2-2. Mother PC Board
                                                                   1. Remove the HDD. (Refer to item 1-1-2.)
1-1-8. Rear Panel
                                                                   2. Remove the front panel. (Refer to item 1-1-3.)
1. Disconnect a connector (1) and twelve screws (2),
   then remove the rear panel (3).                                 3. Remove the RAM drive. (Refer to item 1-1-6.)
                                                                   4. Remove the rear panel. (Refer to item 1-1-8.)
                                         Screws (2)                5. Remove the digital PC board. (Refer to item 1-2-1.)
      Real panel (3)


                                                                   6. Lift the connector (1) up in the direction of the arrow.
                                                                   7. Remove six screws (2), then remove the mother PC
                                                                      board (3).
                                                                     Screws (2)




                                                                                                                     Mother
                                                                                                                     PC board (3)




                           Connector (1)




                            Fig. 2-1-8




                                                                                                                    Connector (1)


                                                                                            Fig. 2-1-10
1-2-3. Power PC Board                                         1-2-4. Battery PC Board
1. Disconnect three connectors (1).                           1. Disconnect a connector (1) and remove a screw (2)
2. Lift a connector (2) up towards the mother board side,        and the battery PC board (3).
   and remove it.
                                                                       Screws (2)
3. Remove a screw (3), five screws (4) and the power PC
   board (5).

                                     Connector (1)
                                                                                                      Connector (1)
   Screws (4)                                                  Battery PC board (3)




                                               Power
                                               PC board (5)

                                            Connector (2)

   Connector (1)




                                                                                       Fig. 2-1-12

                                                 Screws (3)   1-2-5. Front Display, Front Jack and Front Switch
                                                                     PC Board
                                                              1. Remove the front panel. (Refer to item 1-1-3.)
                                                              2. Remove nine screws (1), then remove the stay (2).
                             Mother PC board
                                                              3. Remove four screws (3), then remove the front display
                                                                 PC board (4).
                       Fig. 2-1-11
                                                              4. Remove four screws (5), then remove the front jack
                                                                 PC board (6).
                                                              5. Remove two screws (7), then remove the front switch
                                                                 PC board (8).

                                                                                                   Screws (1)



                                                                 Front display PC board (4)



                                                               Front
                                                               jack PC board (6)
                                                                                              Screws (7)




                                                                                      Screws (5)

                                                                                                                      Stay (2)

                                                                                                                Screws (3)



                                                                                                     Front
                                                                                                     switch PC board (8)



                                                                                              Front panel




                                                                                       Fig. 2-1-13
                                   SECTION 3
                              SERVICING DIAGRAMS
1. CIRCUIT SYMBOLS AND SUPPLEMENTARY EXPLANATION
1-1. Precautions for Part Replacement



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