Toshiba D-R1SU User manual

DVD VIDEO RECORDER

SERVICE MANUAL

FILE NO. 810-200334

D-R1SU

D-R1SC

DIGITAL VIDEO

DOCUMENT CREATED IN JAPAN, Oct., 2003

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 SI and IC are same as above.

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

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

DVD VIDEO RECORDER

AC OUTLET

AC VOLTMETER

(5000 Ωper volt

or more sensitivity)

Good earth ground

such as a water pipe,

conduit, etc.

Test all exposed metal.

Voltmeter Hook-up for Leakage Current Check

0.15 µF 150V AC

1500 Ω

10 W

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.

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

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 RAM DRIVE

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) Release four claws and remove two screws (7).

(6) Remove the front panel (8).

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

Screws (7) Front panel (8)

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 the screw (7) and the ground wire (8).

(9) Remove four screws (9), and then remove the RAM drive (10).

(Note)

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

Fig. 2-1-4

Screw (7)

Connector (3)

Screws (9)

Screws (5)

Tape (4)

Tape (2)

Acrylic board (6)

RAM drive (10)

Ground wire (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 then remove the fan (5).

(Note)

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

• Pass the wire (6) underneath the folded part of the acrylic board.

Fig. 2-1-5

1-1-6. Rear Panel

(1) Remove the fan. (Refer to 1-1-5.)

(2) Remove ten screws (1) and the rear panel (2).

Fig. 2-1-6

Connector (3)

Screws (4)

Tape (1)

Lead wire (6)

Pass the lead (6)

underneath the

folded porton

Binding band (2)

Tape (1)

Fan (5)

Fan (6)

Acrylic board

Screws (1)

Rear panel (2)

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