Toshiba RD-XS54SU Manuale utente
HDD/DVD VIDEO RECORDER
SERVICE MANUAL
Jul., 2005
FILE NO. 810-200568
RD-XS54SU
DIGITAL VIDEO
DOCUMENT CREATED IN JAPAN, JULY, 2005
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.
LASER BEAM CAUTION LABEL
When the power supply is being turned on, you may not remove this laser cautions label. If it removes, radiation of a laser
may be received.
·Manufactured under license from Dolby Laboratories. “Dolby” and the double-D symbol are trademarks of Dolby Laboratories.
·“DTS” and “DTS Digital Out” are trademarks of Digital Theater Systems, Inc.
·Manufactured under license from QSound Labs, Inc. U.S. patent Nos. 5,105,462, 5,208,860 and 5,440,638 and various foreign counterpart. Copyright
QSound Labs, Inc. 1998-2002. QXpanderTM is a trademark of QSound Labs, Inc. All rights reserved.
·In the United States, TV GUIDE and other related marks are registered marks of Gemstar-TV Guide International, Inc. and/or of its affiliates. In
Canada, TV GUIDE is a registered mark of Transcontinental Inc., and is used under license by Gemstar-TV Guide International, Inc.
·The TV Guide On Screen system is manufactured under license from Gemstar-TV Guide International, Inc. and/or one of its affiliates.
·The TV Guide On Screen system is protected by one or more of the following issued United States patents 6,498,895, 6,418,556, 6,331,877, 6,239,794;
6,154,203; 5,940,073; 4,908,713; 4,751,578; 4,706,121.
·HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.
SAFETY NOTICE
SAFETY PRECAUTIONS
LEAKAGE CURRENT CHECK
Plug the AC line cord directly into a 120V AC outlet (do
not use an isolation transformer for this check). Use an
AC voltmeter, having 5000 Ωper volt or more sensitivity.
Connect a 1500 Ω10 W resistor, paralleled by a 0.15 μF
150V AC capacitor between a known good earth ground
(water pipe, conduit, etc.) and all exposed metal parts of
cabinet (antennas, handle bracket, metal cabinet
screwheads, metal overlays, control shafts, etc.).
Measure the AC voltage across the 1500 Ωresistor.
The test must be conducted with the AC switch on and
then repeated with the AC switch off. The AC voltage
indicated by the meter may not exceed 0.3 V. A reading
exceeding 0.3 V indicates that a dangerous potential
exists, the fault must be located and corrected.
Repeat the above test with the DVD VIDEO RECORDER
power plug reversed.
NEVER RETURN A DVD VIDEO RECORDER TO
THE CUSTOMER WITHOUT TAKING NECESSARY
CORRECTIVE ACTION.
READING SHOULD NOT EXCEED 0.3V
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.
Test all exposed metal.
Voltmeter Hook-up for Leakage Current Check
SECTION 2
PART REPLACEMENT AND ADJUSTMENT PROCEDURES
SECTION 3
SERVICING DIAGRAMS
1. CIRCUIT SYMBOLS AND
SUPPLEMENTARY EXPLANATION
1-1. Precautions for Part Replacement
1-2. Solid Resistor Indication
1-3. Capacitance Indication
1-4. Inductor Indication
1-5. Waveform and Voltage Measurement
1-6. Others
2. PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM
3. BLOCK DIAGRAMS
3-1. Overall Block Diagram
4. CIRCUIT DIAGRAMS
4-1. Power Supply Circuit Diagram
4-2. Front Circuit Diagram
4-2-1. Front Jack Circuit Diagram
4-2-2. Front Circuit Diagram (L/SW), (R)
4-3. Digital Circuit Diagram
4-3-1. Digital 1 Circuit Diagram
4-3-2. Digital 2 Circuit Diagram
4-3-3. Digital 3 Circuit Diagram
4-4. Mother Circuit Diagram
4-4-1. Tuner Circuit Diagram
4-4-2. Audio Circuit Diagram
4-4-3. Timer Circuit Diagram
4-4-4. Video Circuit Diagram
4-5. Tuner Unit Circuit Diagram
4-6. HDMI Circuit Diagram
4-7. LAN Circuit Diagram
5. PC BOARDS
5-1. Front Jack PC Board
5-2. Front Switch PC Board
5-3. Front (L) PC Board
5-4. Front (R) PC Board
5-5. Tuner Unit PC Board
5-6. LAN PC Board
5-7. HDMI PC Board
5-8. Digital PC Board
5-9. Mother PC Board
CONTENTS
SECTION 1
GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS
1. Replacement of Mechanical Parts
1-1. Cabinet Replacement
1-1-1. Top Cover
1-1-2. HDD
1-1-3. Front Panel
1-1-4. RAM Diver
1-1-5. Rear Panel
1-1-6. Fan
1-2. PC Board Replacement
1-2-1. Digital PC Board
1-2-2. Tuner Unit PC Board
1-2-3. HDMI PC Board
1-2-4. LAN PC Board
1-2-5. Mother PC Board
1-2-6. Power PC Board
1-2-7. Front (R), Front (L/SW), Front (Jack) PC Board
2. WIRING CONNECTION DIAGRAM
2. LOCATION OF MAIN PARTS
2-1. Location of Main Parts
2-2. Location of PC Boards
SECTION 4
PARTS LIST
SAFETY PRECAUTION
NOTICE
ABBREVIATIONS
1. EXPLODED VIEWS
1-1. Packing Assembly
1-2. Chassis Assembly
2. PARTS LIST
SECTION 1
GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS
Please refer to the owner's manual about the contents.
SECTION 1
GENERAL DESCRIPTIONS
2. LOCATION OF MAIN PARTS
2-1. Location of Main Parts
Fig. 1-2-1
2-2. Location of PC Boards
Fig. 1-2-2
1-1. Cabinet Replacement
1-1-1. Top Cover
1. Remove seven screws (1), then remove the top cover (2).
Fig. 2-1-1
SECTION 2
PART REPLACEMENT AND
ADJUSTMENT PROCEDURES
SECTION 2
PART REPLACEMENT AND
ADJUSTMENT PROCEDURES
CAUTIONS BEFORE STARTING PART REPLACEMENT
Electronic parts are susceptible to static electricity and may easily damaged, so do not forget to ground as required.
Many screws are used inside the unit. To prevent the screws from missing or dropping, etc. always use a magnetized
screwdriver 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.
1. REPLACEMENT OF MECHANICAL PARTS
1-1-2. HDD
1. Remove the top cover. (Refer to item 1-1-1.)
2. Peel off two tapes (1).
3. Remove the screw (2) and the erath lead (3).
4. Remove four screws (4).
5. Disconnect the flexible cable (5) and the connector (6).
6. Remove four screws (7), and remove the dumper (9) and the HDD (10) from fixing bracket (8).
Note:
• After replacing, attach the tape (1) to its original position.
Fig. 2-1-2
1-1-3. Front Panel
1. Remove the top cover. (Refer to item 1-1-1.)
2. Peel off the tape (1).
3. Disconnect the connector (2) and the flexible cable(3).
4. Remove two screws (4) and two bases (5).
5. Remove the screw (6) and the screw (7), then remove two earth leads (8).
6. Disconnect the connector (9) and the flexible cable (10), then remove the front panel (11).
Note:
• After replacing, attach the tape (1) to its original position.
Fig. 2-1-3
1-1-4. RAM Drive
1. Remove the front panel. (Refer to item 1-1-3.)
2. Peel off two tapes (1).
3. Disconnect the flexible cable (2) and the connector (3).
4. Remove three screws (4), then remove the RAM drive (5).
5. Remove four screws (6), then remove the fixing bracket (7).
Note:
• After replacing, attach the tape (1) to its original position.
Fig. 2-1-4
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