Toshiba D-R1SB Manual de usuario

DVD VIDEO RECORDER

SERVICE MANUAL

December, 2003 Y

FILE NO. 810-200338

D-R1SB

D-R1SF

D-R1SG

DIGITAL VIDEO

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.

1MΩ

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 10Ω.

SECTION 2

PART REPLACEMENT AND ADJUSTMENT PROCEDURES

SECTION 3

SERVICING DIAGRAMS

1. CIRCUIT SYMBOLS AND

SUPPLEMENTARY EXPLANATION

1-1. Circuit Symbols

1-2. Precautions for Part Replacement

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 (L) Circuit Diagram

4-2-3. Front (R) Circuit Diagram

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

4-4-5. MSP Circuit Diagram

5. PC BOARDS

5-1. Front (L) PC Board

5-2. Front (R) PC Board

5-3. Front (Jack) 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. RAM Drive

1-1-5. Fan

1-1-6. 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) and 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 DVD-RAM

EU05 Mother PC board

EU01 Digital PC board

EU02 Power PC board

EU03A Front (R) PC board

EU03B Front (L) PC board

EU55 Jack PC board

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 be 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. Cabinet Replacement

1-1-1. Top Cover

(1) Remove seven screws (1), and then remove the top cover (2).

Fig. 2-1-1

Screws (1)

Top cover (2)

1-1-2. Front Panel

(1) Remove the top cover. (Refer to item 1-1-1.)

(2) Disconnect the flexible cable (1).

(3) Disconnect the flexible cable (2) and two connectors (3).

(4) Remove two screws (4) and two ground wires (5) and (6).

(5) Remove the front panel (7).

Fig. 2-1-2

1-1-3. Tray Door

(1) Remove the front panel. (Refer to item 1-1-2.)

(2) Remove the Front (R) PC board. (Refer to item 1-2-4 (2) to (4).)

(3) Remove the spring (1).

(4) Remove the tray door (2) while slightly bending it.

Fig. 2-1-3

Screw (4)

Connector (3)

Claw

Claws

Front panel (7)

Ground wire (5)

Ground wire (6)

Flexible cable (1)

Flexible cable (2)

Tray door (2)

Spring (1)

1-1-4. RAM Drive

(1) Remove the top cover. (Refer to item 1-1-1.)

(2) Remove the front panel. (Refer to item 1-1-2.)

(3) Disconnect the flexible cable (1).

(4) Remove the piece of tape (2).

(5) Disconnect the connector (3).

(6) Remove two pieces of tape (4).

(7) Remove three screws (5), and then remove the acrylic board (6).

(8) Remove four screws (7), and then remove the RAM drive (8).

(Note)

After replacing, tape on three points of (2) and (4) as they were.

Fig. 2-1-4

Connector (3)

Screws (7)

Screws (5)

Tape (4)

Tape (2)

Acrylic board (6)

RAM drive (8)

Flexible cable (1)

1-1-5. Fan

(1) Remove the two pieces of tape (1).

(2) Cut off the binding band (2).

(3) Disconnect the connector (3).

(4) Remove four screws (4) and nuts (5) to remove the fan (6).

(Note)

• After replacing, tape on two points (1) as they were.

• Pass the wire (7) underneath the folded part of the acrylic board.

Fig. 2-1-5

1-1-6. Rear Panel

(1) Remove eight screws (1) and four screws (2).

(2) Remove the rear panel (3).

Fig. 2-1-6

Connector (3)

Screws (4)

Tape (1)

wire (7)

Pass the wire (7)

underneath the

folded porton

Binding band (2)

Tape (1)

Fan (6)

Wire (7)

Nuts (5)

Acrylic board

Screws (1)

Screw (1)

Rear panel (3)

Screws (2)

1-2. PC Board Replacement

1-2-1. Digital PC Board

(1) Remove the front panel. (Refer item to 1-1-2.)

(2) Remove the RAM drive. (Refer item to 1-1-4.)

(3) Disconnect three connectors (1).

(4) Remove the screw (2) to remove the ground wire (3).

(5) Remove four screws (4), and then remove the digital PC board (5).

Fig. 2-1-7

Screws (4)

Screw (2)

Connector (1)

Digital PC board (5)

Ground wire (3)

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