DVD VIDEO PLAYER
Jun., 2001 5
FILE NO. 810-200102
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 109.
: Only for SD-1750.
SD-1700 is not provided with playback function of VIDEO CD.
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
(5000 9 per volt
or more sensitivity)
Good earth ground
such as a water pipe,
0.15 mF 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
3. PRINTED WIRING BOARD AND
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
5. CIRCUIT DIAGRAMS
5-1. Power Supply Circuit Diagram
5-2. Front Display, Power Switch Circuit Diagram
5-3. Main Circuit Diagram
5-4. Motor System Circuit Diagrams
6. PC BOARDS
6-1. Power Supply PC Board
6-2. Power Switch PC Board
6-3. Main PC Board
6-4. 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. Clamper Stay
1-1-3. Tray Panel
1-1-4. Front Panel and Tray
1-1-5. Rear Panel
1-2. PC Board Replacement
1-2-1. Main PC Board
1-2-2. Power PC board
1-2-3. Front PC Board
1-3. Mechanism Parts
1-3-1. Mechanism Chassis Assembly
1-3-2. Loading Belt
1-3-3. Loading Motor
1-3-4. Sub Chassis (with a pickup mechanism)
1-3-5. Pickup Mechanism Assembly
1-3-6. Gear A Assembly, Gear B and
Rack Gear Assembly
1-3-7. Feed Motor
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
1. OPERATING INSTRUCTIONS (SD-1750)