Toshiba D-R2SU Bedienungsanleitung
DVD VIDEO RECORDER
SERVICE MANUAL
FILE NO. 810-200413
D-R2SU
D-R2SC
D-KR2SU
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 LSI 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 120V AC outlet (do
not use an isolation transformer for this check). Use an
AC voltmeter, having 5000 Wper volt or more sensitivity.
Connect a 1500 W10 W resistor, paralleled by a 0.15 mF
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 Wresistor.
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.
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 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)
4-2-3. Front Circuit Diagram (R)
4-3. Digital Circuit Diagram
4-3-1. Digital 1 Circuit Diagram
4-3-2. Digital 2 Circuit Diagram
4-4. Mother Circuit Diagram
4-4-1. Tuner Circuit Diagram
4-4-2. Timer Circuit Diagram
4-4-3. Audio Circuit Diagram
4-4-4. Video Circuit Diagram
5. PC BOARDS
5-1. Front Jack PC Board
5-2. Front (L) PC Board
5-3. Front (R) PC Board
5-4. Digital PC Board
5-5. 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. Front Panel
1-1-3. Tray Door
1-1-4. Operation Panel Door
1-1-5. RAM Diver
1-1-6. Fan
1-1-7. Rear Panel
1-2. PC Board Replacement
1-2-1. Digital PC Board
1-2-2. Mother PC Board
1-2-3. Power PC Board
1-2-4. Front (R), Front (L), Front (Jack) PC Board
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. Integrated Circuit (IC)
2. Capacitor (Cap)
3. Resistor (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
EU05 Mother PC board
EU01 Digital PC Board
EU0 Power PC board
EU03A Front (R) PC Board
EU55 Front (Jack) PC Board
EU03B Front (L)
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.
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. Front Panel
1. Remove the top cover. (Refer to item 1-1-1.)
2. Peel off three tapes (1) and disconnect the flexible cable (2).
3. Disconnect the flexible cable (3) and two connectors (4).
4. Remove the screw (5).
5. Remove two screws (6).
6. Release four claws, then remove the front panel (7).
Fig. 2-1-2
Flexible cable (2)
Flexible
cable (3)
Tapes (1)
Connector (4)
Connector (4)
Screws (6)
Screw (5)
Front panel (7)
Claw
Claw
Claws
1-1-3. Tray Door
1. Remove the front (R) PC board and front (L) PC board. (Refer to item 1-2-4.)
2. Remove the spring (1).
3. Remove the tray door (2) while slightly bending it.
Fig. 2-1-3
Spring (1)
Tray oor (2)
1-1-5. RAM Drive
1. Peel off four tapes (1).
2. Disconnect two flexible cables (2).
3. Disconnect the connector (3).
4. Remove two screws (4) and acrylic board (5).
5. Remove four screws (6), then remove the RAM drive (7).
1-1-4. Operation Panel Door
1. Open the operation panel door (1).
2. Release two claws and unhinge the door (1).
Fig. 2-1-4
Front panel
Hinge
Claw
Claw
Hinge
Operation panel oor (1)
Flexible cable (2)
Flexible
cable (2)
Connector (3)
Tapes (1)
Tape (1)
Acrylic
boar (5)
Screws (6)
Screws (4)
RAM rive (7)
Connector
Claw
Flexible cable (2)
A
A
Remove the connector claw
in the irection in icate
by the arrows to release the
flexible cable.
Fig. 2-1-5
1-1-6. Fan
1. Peel off the tape (1).
2. Disconnnect the connector (2).
3. Remove four screws (3) and the fan (4).
Note:
• After replacing the fan (4), attatch the tape (1) as it was.
1-1-7. Rear Panel
1. Remove twelve screws (1), then remove the rear panel (2).
Fig. 2-1-7
Wire (5)
Wire (5)
Screws (3)
Connector (2)
Tape (1)
Fan (4)
Acrylic boar
Pass the wire (5)
un erneath the
fol e part.
Screws (1)
Rear panel (2)
Fig. 2-1-6
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