Toshiba RD-85DTSB Manuale utente
HDD/DVD VIDEO RECORDER
SERVICE MANUAL
Apr., 2006 GREEN
FILE NO. 810-200646GR
RD-85DTSB
DIGITAL VIDEO
The above models are classified as green products (*1), as indicated by the underlined serial numbers.
This Service Manual describes replacement parts for the green products. When repairing these green
product(s), use the part(s) described in this manual and lead-free solder (*2).
For (*1) and (*2), see the next page.
(*1) GREEN PRODUCT PROCUREMENT
The EC is actively promoting the WEEE & RoHS Directives that define standards for recycling
and reuse of Waste Electrical and Electronic Equipment and for the Restriction of the use of
certain Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any marketing
of new products containing the restricted substances.
Increasing attention is given to issues related to the global environmental. Toshiba Corporation
recognizes environmental protection as a key management tasks, and is doing its utmost to
enhance and improve the quality and scope of its environmental activities. In line with this,
Toshiba proactively promotes Green Procurement, and seeks to purchase and use products,
parts and materials that have low environmental impacts.
Green procurement of parts is not only confined to manufacture. The same green parts used in
manufacture must also be used as replacement parts.
(*2) LEAD-FREE SOLDER
This product is manufactured using lead-free solder as a part of a movement within the consumer
products industry at large to be environmentally responsible. Lead-free solder must be used in the
servicing and repair of this product.
WARNING
This product is manufactured using lead free solder.
DO NOT USE LEAD BASED SOLDER TO REPAIR THIS PRODUCT !
The melting temperature of lead-free solder is higher than that of leaded solder by 86°F to 104°F
(30°C to 40°C). Use of a soldering iron designed for lead-based solders to repair product made
with lead-free solder may result in damage to the component and or PCB being soldered. Great
care should be made to ensure high-quality soldering when servicing this product especially when
soldering large components, through-hole pins, and on PCBs as the level of heat required to melt
lead-free solder is high.
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.
9
9
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.
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 (R)
4-2-3. Front Circuit Diagram (L)
4-3. Digital Circuit Diagram
4-4. Mother Circuit Diagram
4-4-1. Audio Circuit Diagram
4-4-2. Timer Circuit Diagram
4-4-3. Video Circuit Diagram
4-5. Digital Tuner Module Circuit Diagram
4-5-1. Digital Tuner Module Circuit Diagram (1)
4-5-2. Digital Tuner Module Circuit Diagram (2)
4-5-3. Digital Tuner Module Circuit Diagram (3)
4-5-4. Digital Tuner Module Circuit Diagram (4)
4-5-5. Digital Tuner Module Circuit Diagram (5)
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. HDD
1-1-3. Front Panel
1-1-4. RAM Dive
1-1-5. Rear Panel
1-1-6. Fan
1-2. PC Board Replacement
1-2-1. Digital Tuner Module
1-2-2. Digital PC Board
1-2-3. Mother PC Board
1-2-4. Power PC Board
1-2-5. Front (R), Front (L), and Front (Jack) PC Board
2. WIRING CONNECTION DIAGRAM
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. EXPLODED VIEWS
1-1. Packing Assembly
1-2. Chassis Assembly
2. PARTS LIST
SUPPLEMENT
The Upgrading Method of DTV Software
1. Use Cable & SW
2. Operation : The First Time
3. Update Check
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
DTV1 Digital Tuner Module
EU01 Digital PC Board
EU02 Power PC Board
EU03A Front(R) PC Board
EU03B Front(L)
PC Board
EU03C Front(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 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), then remove the top cover (2).
Fig. 2-1-1
Screws (1)
Screws (1)
Screws (1)
Top cover (2)
1-1-2. HDD
1. Remove the top cover. (Refer to item 1-1-1.)
2. Remove the tape (1).
3. Remove four screws (2).
4. Disconnect the flexible cable (3) and the connector (4).
5. Remove four screws (5), then remove the damper (7) and HDD (8) from the bracket (6).
Note:
• Attach the tapes (1) as they were after the HDD is replaced.
Fig. 2-1-2
Connector (4)
Screws (5)
Screws (5)
Bracket (6)
Damper (7)
HDD (8)
Flexible
cable (3)
Damper (7)
Screws (2)
Tape (1)
Connector
Claw
Flexible
cable (3)
Damper (7)
Damper (7)
1-1-3. Front Panel
1. Remove the top cover. (Refer to item 1-1-1.)
2. Remove the HDD. (Refer to item 1-1-2.)
3. Remove two tapes (1).
4. Disconnect the connector (2) and two flexible cables (3).
5. Remove the screw (4), four claws, then remove the front panel (5).
Note:
• Attach the tape (1) as it was after the front panel is replaced.
Fig. 2-1-3
Connector (2)
Flexible cables (3)
Front panel (5)
Claws
Claw
Claw
Screw (4)
Tape (1)
1-1-4. RAM Drive
1. Remove the top cover. (Refer to item 1-1-1.)
2. Remove the HDD. (Refer to item 1-1-2.)
3. Remove the front panel. (Refer to item 1-1-3.)
4. Remove the Digital Tuner Module. (Refer to item 1-2-1.)
5. Remove two tapes (1).
6. Remove six screws (2), then remove the RAM drive (3).
7. Disconnect the flexible cable (4) and the connector (5).
8. Remove the shield cover (6) from the RAM drive (3).
Note:
• Attach the tapes (1) as they were after the RAM drive is replaced.
Fig. 2-1-4
Connector (5)
Shield cover (6)
Tape (1)
Tape (1)
Screws (2)
RAM drive (3)
Flexible cable (4)
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