Toshiba RD-XS52SU Manual de usuario
HDD/DVD VIDEO RECORDER
SERVICE MANUAL
FILE NO. 810-200463
RD-XS52SU
RD-XS52SC
RD-KX50SU
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.
SAFETY NOTICE
SAFETY PRECAUTIONS
LEAKAGE CURRENT CHECK
Plug the AC line cord directly into a 12 V AC outlet (do
not use an isolation transformer for this check). Use an
AC voltmeter, having 5 W per volt or more sensitivity.
Connect a 15 W 1 W resistor, paralleled by a .15 mF
15 V 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 15 W resistor.
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 .3 V. A reading
exceeding .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.
DVD VIDEO RECORDER AC VOLTMETER
(5000
W
per volt
or more sensitivity)
Good earth ground
such as a water pipe,
conduit, etc.
1500
W
10 W
0.15
m
F 150V AC
AC OUTLET
Test all exposed metal.
Voltmeter Hook-up for eakage Current Check
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
4-4. Mo her Circui Diagram
4-4-1. Tuner Circui Diagram
4-4-2. Timer Circui Diagram
4-4-3. Audio Circui Diagram
4-4-4. Video Circui Diagram
4-5. HDMI Ou pu 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. Digi al PC Board
5-5. Mo her PC Board
5-6. HDIM Ou pu PC Board
CONTENTS
SECTION 1
GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS
1. Replacemen of Mechanical Par s
1-1. Cabine Replacemen
1-1-1. Top Cover
1-1-2. HDD
1-1-3. Fron Panel
1-1-4. RAM Diver
1-1-5. Rear Panel
1-1-6. Fan
1-2. PC Board Replacemen
1-2-1. Digi al PC Board
1-2-2. HDMI Ou pu PC Board
1-2-3. Mo her PC Board
1-2-4. Power PC Board
1-2-5. Fron (R), Fron (L), Fron (Jack) PC Board
2. Wiring Connec ion 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. In egra ed Circui (IC)
2. Capaci or (Cap)
3. Resis or (Res)
4. EXPLODED VIEWS
4-1. Packing Assembly
4-2. Chassis Assembly
5. 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
EU23 HDMI Output 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)
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
1-1-2. HDD
1. Peel off two tapes (1).
2. Remove four screws (2).
3. Disconnect the flexible cable (3) and the connector (4).
4. Remove four screws (5), then remove the dampers (7) and 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)
Tapes (1)
Screws (5)
Screws (5)
Screws (2)
Flexible
cable (3)
Flexible
cable (3)
Connector (4)
Connector
HDD bracket (6)
Claw
1-1-3. Front P nel
1. Remove the top cover. (Refer to item 1-1-1.)
2. Disconnect the connector (1) and flexible cable (2).
3. Remove two screws (3) and four claws, and pull
out the front panel (6).
4. Disconnect the connector (4) and flexible cable (5),
then remove the front panel (6).
Fig. 2-1-3
1-1-4. RAM Drive
1. Remove the front panel.
(Refer to item 1-1-3.)
2. Remove three screws (1).
3. Disconnect the flexible cable (2)
and the connector (3).
4. Remove the RA drive (4).
Fig. 2-1-4
Flexible
cable (2)
Flexible
cable (5)
Connector (4)
Connector (1)
Screws (3)
Front panel (6)
Claws Claw
Claw
Flexible
cable (2)
Connector (3)
Screws (1)
RAM rive (4)
1-1-5. Re r P nel
1. Remove six screws (1) and five screws (2).
2. Remove two claws, then remove the rear panel (3).
3. Remove four screws (4) and the fan (5).
Fig. 2-1-5
1-1-6. F n
1. Remove the connector (1).
2. Remove four screws (2), then remove the fan (3).
Fig. 2-1-6
Screws (1)
Screws (2)
Screws (4)
Rear panel (3)
Fan (5)
Hexagonal nut
Claw
Claw
Screws (2)
Connector (1)
Fan (3)
Hexagonal nut
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