DVD VIDEO PLAYER
Mar., 2000 s
FILE NO. 810-200002
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 recceived.
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.
wrist strap for body.
with ground wire
or ceramic type
The ground resistance
between the ground line
and the ground is less than 10
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
per volt or more sensitivity.
Connect a 1500
10 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
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 PLAYER
power plug reversed.
NEVER RETURN A DVD VIDEO PLAYER TO THE
CUSTOMER WITHOUT TAKING NECESSARY
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 PLAYER
9 per volt
or more sensitivity)
Good earth ground
such as a water pipe,
µF 150V AC
Test all exposed metal.
Voltmeter Hook-up for Leakage Current Check
PART REPLACEMENT AND ADJUSTMENT PROCEDURES
1. STANDING PC BOARDS FOR SERVICING
2 . CIRCUIT SYMBOLS AND
2-1. Precautions for Part Replacement
2-2. Solid Resistor Indication
2-3. Capacitance Indication
2-4. Inductor Indication
2-5. Waveform and Voltage Measurement
2-6. When Replaced ROM ICs or Upgraded Firmware
3 . PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
4. BLOCK DIAGRAMS
4-1. Overall Block Diagram
4-2. Power Supply Block Diagram
4-3. Front Display, Power Switch Block Diagram
4-4. Main Block Diagrams
4-5. Output Block Diagram
5. CIRCUIT DIAGRAMS
5-1. Power Supply Circuit Diagram
5-2. Front Display, Power Switch Circuit Diagram
5-3. Main Circuit Diagram
5-4. Output Circuit Diagram
5-5. Motor System Circuit Diagrams
6. PC BOARDS
6-1. Power Supply PC Board
6-2. Power Switch PC Board
6-3. Disc LED PC Board
6-4. Main PC Board
6-5. Output PC Board
6-6. Front Display PC Board
1. OPERATING INSTRUCTIONS
2. LOCATION OF MAIN PARTS AND
2-1. Location of Main Parts
2-2. Location of Mechanism Parts
1. REPLACEMENT OF MECHANICAL PARTS
1-1. Cabinet Replacement
1-1-1. Top Cover
1-1-2. Tray Panel
1-1-3. Front Panel
1-1-4. Rear Panel
1-2. PC Board Replacement
1-2-1. Main PC Board
1-2-2. Output PC Board
1-2-3. Power Supply PC board
1-2-4. Front Display and Power SW PC Boards
1-3. Mechanism Parts Replacement
1-3-1. Mechanism Chassis Assembly
1-3-2. Loading Belt
1-3-3. Loading Motor
1-3-4. Pickup Mechanism Assembly
1-3-5. Gear A Assembly, Gear B and
Rack Gear Assembly
1-3-6. Feed Motor
1-4. Tray Replacement
1-4-1. Tray Removal
1-4-2. Tray Mounting
3-1. Main Circuit
3-1-1. Servo System
3-1-2. Location Diagram of Servo Test Point
1. Integrated Circuit (IC)
2. Capacitor (Cap)
3. Resistor (Res)
4. EXPLODED VIEWS
4-1. Packing Assembly
4-2. Chassis Assembly
4-3. Mechanism Assembly
5. PARTS LIST
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES ARE PRESENT INSIDE THE
ENCLOSURE. DO NOT OPEN THE CABINET. REFER SERVICINGTO QUALIFIED PERSONNEL
TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY
POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA
FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU'AU FOND.
This Digital Video Disc Player employs a Laser System.
To ensure proper use of this product, please read this owner's manual carefully and retain for
future reference. Should the unit require maintenance, contact an authorized service location -
see service procedure.
Use of controls or adjustments or performance of procedures other than those specified herein
may result in hazardous radiation exposure.
To prevent direct exposure to laser beam, do not try to open the enclosure.
Visible laser radiation when open and interlocks defeated.
DO NOT STARE INTO BEAM.
FCC NOTICE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rule. These limits are designed to provide reasonable protection
against harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is
- Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications made to this equipment, not expressly approved by Toshiba, or parties
authorized by Toshiba, could void the user's authority to operate the equipment.
The lightning flash with arrowhead symbol, within an equilat-
eral triangle, is intended to alert the user to the presence of
uninsulated "dangerous voltage" within the product's enclo-
sure that may be of sufficient magnitude to constitute a risk
of electric shock to persons.
The exclamation point within an equilateral triangle is in-
tended to alert the user to the presence of important operat-
ing and maintenance (servicing) instructions in the literature
accompanying the appliance.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE NE
TO REDUCE THE RISK OF
DO NOT REMOVE
COVER (OR BACK). NO USERSERVICEABLE
REFER SERVICING TO
QUALIFIED SERVICE PERSONNEL.
1. OPERATING INSTRUCTIONS