Toshiba RD-XS34SB User manual
HDD/DVD VIDEO RECORDER
SERVICE MANUAL
Feb., 2005
S
FILE NO. 810-200512
RD-XS34SB
RD-XS34SF
RD-XS34SG
DIGITAL VIDEO
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 SI and IC are same as above.
1M
W
Ground conductive
wrist strap for body.
Soldering iron
with ground wire
or ceramic type
Conductive mat The ground resistance
between the ground line
and the ground is less than 10
W
.
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.
·VideoPlus and VideoPlus Deluxe are the trademarks of Gemstar Europe, Ltd.
SECTION 2
PART REPLACEMENT AND ADJUSTMENT PROCEDURES
SECTION 3
SERVICING DIAGRAMS
1. CIRCUIT SYMBOLS AND
SUPPLEMENTARY EXPLANATION
1-1. Precau ions for Par Replacemen
1-2. Solid Resis or Indica ion
1-3. Capaci ance Indica ion
1-4. Induc or Indica ion
1-5. Waveform and Vol age Measuremen
1-6. O hers
2. PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM
3. BLOCK DIAGRAMS
3-1. Overall Block Diagram
4. CIRCUIT DIAGRAMS
4-1. Power Supply Circui Diagram
4-2. Fron Circui Diagram
4-2-1. Fron Jack Circui Diagram
4-2-2. Fron Circui Diagram (L/R)
4-3. Digi al Circui Diagram
4-3-1. Digi al 1 Circui Diagram
4-3-2. Digi al 2 Circui Diagram
4-4. Mo her Circui Diagram
4-4-1. Tuner In erface Circui Diagram
4-4-2. Timer Circui Diagram
4-4-3. Audio Circui Diagram
4-4-4. Video Circui Diagram
4-4-5. MSP Circui Diagram
4-5. Tuner Uni Circui Diagram
5. PC BOARDS
5-1. Fron Jack PC Board
5-2. Fron (L) PC Board
5-3. Fron (R) PC Board
5-4. Tuner Uni PC Board
5-5. Digi al PC Board
5-6. Mo her PC Board
CONTENTS
SECTION 1
GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS
1. REPLACEMENT OF MECHANICAL PARTS
1-1. Cabine Replacemen
1-1-1. Top Cover
1-1-2. HDD
1-1-3. Fron Panel
1-1-4. RAM Drive
1-1-5. Rear Panel
1-1-6. Fan
1-2. PC Board Replacemen
1-2-1. Tuner Uni PC Board
1-2-2. Digi al PC Board
1-2-3. Mo her PC Board
1-2-4. Power PC Board
1-2-5. Fron (R), Fron (L) and Fron (Jack) PC Board
2. WIRING CONNECTION DIAGRAM
2. LOCATION OF MAIN PARTS
2-1. Loca ion of Main Par s
2-2. Loca ion 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
ZG45 FAN
RAM1 RAM DRIVE
HDD1 HDD UNIT
EU05 Mother PC board
EU02 Power PC board
EU01 Digital
PC board
EU82 Tuner Unit PC board
EU03A Front (R) PC board
EU03B Front (L)
PC board
EU55 Front (Jack)
PC board
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
Screws (1)
Screws (1)
Rating label
Screws (1)
Top cover (2)
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.
any 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
Note:
There is a rating label applied on the top cover.
When the top cover is replaced with a new one, put a new rating label on the new top cover.
Transcribe the following items ( odel No., serial No., power supply/power requirement etc.) described on the old rating
label to the new rating label by using a permanent marker.
1-1-2. HDD
1. Remove the top cover. (Refer to item 1-1-1.)
2. Peel off the tape (1).
3. Remove four screws (2).
4. Disconnect the flexible cable (3) and the connector (4).
5. Remove four screws (5) and four dampers (7), then remove the HDD (8).
Note:
• After replacing, attach the tape (1) to its original position.
Fig. 2-1-2
Dampers (7)
Dampers (7)
Damper (7)
Damper (7)
HDD (8)
Tape (1)
Screws (5)
Screws (5)
Screws (2) Screws (2)
Flexible
cable (3)
Connector (4)
HDD bracket (6)
1-1-3. Front P nel
1. Remove the top cover. (Refer to item 1-1-1.)
2. Peel off three tapes (1).
3. Disconnect two connectors (2) and two flexible cables (3).
4. Remove two screws (4) and four claws, then remove the front panel (5).
Note:
• After replacing, attach the tape (1) to its original position.
Fig. 2-1-3
Flexible
cables (3)
Connector (2)
Connector (2)
Tapes (1)
Screws (4) Front panel (5)
Claws Claw
Claw
1-1-4. RAM Drive
1. Remove the front panel. (Refer to item 1-1-3.)
2. Peel off three tapes (1).
3. Disconnect the flexible cable (2) and the connector (3).
4. Remove three screws (4), then remove the RA drive (5).
5. Remove four screws (6), then remove the RA drive bracket (7).
Note:
• After replacing, attach the tape (1) to its original position.
Fig. 2-1-4
Flexible cable (2)
Connector (3)
Screw (4)
Screw (4)
Screw (4)
Tapes (1)
Tape (1)
RAM drive (5)
Screws (6)
Screws (6)
RAM drive
bracket (7)
1-1-5. Re r P nel
1. Remove the top cover. (Refer to item 1-1-1.)
2. Peel off the tape (1).
3. Remove the screw (2), four screws (3) and five screws (4).
4. Remove two claws, then remove the rear panel (5).
5. Remove two screws (6), them remove the fan (7).
Note:
• After replacing, attach the tape (1) to its original position.
Fig. 2-1-5
1-1-6. F n
1. Remove the top cover. (Refer to item 1-1-1.)
2. Peel off the tape (1).
3. Remove the connector (2).
4. Remove two screws (3), then remove the fan (4).
Note:
• After replacing, attach the tape (1) to its original position.
Screw (2)
Screws (4)
Screws (3)
Tape (1)
Screws (6)
Rear panel (5)
Fan (7)
Hexagonal nut
Claw
Claw
Screws (3)
Connector (2)
Fan (4)
Tape (1)
Hexagonal nut
Fig. 2-1-6
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