SERVICE MANUAL
COLOR TELEVISION/
DVD VIDEO PLAYER
DOCUMENT CREATED IN JAPAN, February, 2005
MD14F51
FILE NO. 140-200506
(MFR'S VERSION A)
A1-1
PREPARATION OF SERVICING
The laser diode used for a pickup head may be destroyed with external static electricity.
Moreover, even if it is operating normally after repair, when static electricity discharge is received at the
time of repair, the life of the product may be shortened.
Please perform the following measure against static electricity, be careful of destruction of a laser diode
at the time of repair.
· Place the unit on a workstation equipped to protect, against static electricity, such as conductive mat.
· Soldering iron with ground wire or ceramic type is used.
· A worker needs to use a ground conductive wrist strap for body.
Location of the required Marking
The rating sheet and the safety caution are on the rear of the unit.
CERTIFICATION: COMPLIES WITH FDA
RADIATION PERFORMANCE STANDARDS,
21 CFR SUBCHAPTER J.
CAUTION
THIS DIGITAL VIDEO PLAYER EMPLOYS A LASER SYSTEM.
TO ENSURE PROPER USE OF THIS PRODUCT, PLEASE READ THIS SERVICE MANUAL CARE-
FULLY AND RETAIN FOR FUTURE REFERENCE. SHOULD THE UNIT REQUIRE MAINTENANCE,
CONTACT AN AUTHORIZED SERVICE LOCATION-SEE SERVICE PROCEDURE.
USE OF CONTROLS, ADJUSTMENTS OR THE 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 MAY BE PRESENT WHEN THE ENCLOSURE IS OPENED. DO NOT
STARE INTO BEAM.
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SERVICING NOTICES ON CHECKING
6. AVOID AN X-RAY
1. KEEP THE NOTICES
As for the places which need special attentions,
they are indicated with the labels or seals on the
cabinet, chassis and parts. Make sure to keep the
indications and notices in the operation manual.
3. USE THE DESIGNATED PARTS
5. TAKE CARE TO DEAL WITH THE
CATHODE-RAY TUBE
In the condition that an explosion-proof cathode-
ray tube is set in this equipment, safety is
secured against implosion. However, when
removing it or serving from backward, it is
dangerous to give a shock. Take enough care to
deal with it.
Safety is secured against an X-ray by consider-
ing about the cathode-ray tube and the high
voltage peripheral circuit, etc.
Therefore, when repairing the high voltage pe-
ripheral circuit, use the designated parts and
make sure not modify the circuit.
Repairing except indicates causes rising of high
voltage, and it emits an X-ray from the cathode-
ray tube.
PERFORM A SAFETY CHECK AFTER
SERVICING
7.
Confirm that the screws, parts and wiring which
were removed in order to service are put in the
original positions, or whether there are the
portions which are deteriorated around the
serviced places serviced or not. Check the
insulation between the antenna terminal or
external metal and the AC cord plug blades.
And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
1.
2.
3.
4.
Unplug the plug from the AC outlet.
Remove the antenna terminal on TV and turn
on the TV.
Insulation resistance between the cord plug
terminals and the eternal exposure metal
[Note 2] should be more than 1M ohm by
using the 500V insulation resistance meter
[Note 1].
If the insulation resistance is less than 1M
ohm, the inspection repair should be
required.
[Note 1]
If you have not the 500V insulation
resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
The parts in this equipment have the specific
characters of incombustibility and withstand
voltage for safety. Therefore, the part which is
replaced should be used the part which has
the same character.
Especially as to the important parts for safety
which is indicated in the circuit diagram or the
table of parts as a
mark, the designated
parts must be used.
4. PUT PARTS AND WIRES IN THE
ORIGINAL POSITION AFTER
ASSEMBLING OR WIRING
There are parts which use the insulation
material such as a tube or tape for safety, or
which are assembled in the condition that
these do not contact with the printed board.
The inside wiring is designed not to get closer
to the pyrogenic parts and high voltage parts.
Therefore, put these parts in the original
positions.
Please include the following informations when you order parts. (Particularly the VERSION LETTER.)
1. MODEL NUMBER and VERSION LETTER
The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be
found at the end of the SERIAL NUMBER.
2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.
HOW TO ORDER PARTS
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IMPORTANT SAFEGUARDS
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8A.
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READ INSTRUCTIONS
All the safety and operating instructions should be read before the unit is operated.
RETAIN INSTRUCTIONS
The safety and operating instructions should be retained for future reference.
HEED WARNINGS
All warnings on the unit and in the operating instructions should be adhered to.
FOLLOW INSTRUCTIONS
All operating and use instructions should be followed.
CLEANING
Unplug this unit from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp
cloth for cleaning.
ATTACHMENTS
Do not use attachments not recommended by the unit's manufacturer as they may cause hazards.
WATER AND MOISTURE
Do not use this unit near water. For example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a wet
basement, or near a swimming pool.
ACCESSORIES
Do not place this unit on an unstable cart, stand, tripod, bracket, or table. The
unit may fall, causing serious injury, and serious damage to the unit. Use only
with a cart, stand, tripod, bracket, or table recommended by the manufacturer.
An appliance and cart combination should be moved with care. Quick stops,
excessive force, and uneven surfaces may cause the appliance and cart
combination to overturn.
VENTILATION
Slots and openings in the cabinet and in the back or bottom are provided for ventilation, to ensure reliable
operation of the unit, and to protect it from overheating. These openings must not be blocked or covered. The
openings should never be blocked by placing the unit on a bed, sofa, rug, or other similar surface. This unit
should never be placed near or over a radiator or heat source. This unit should not be placed in a built-in
installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer's instructions
have been adhered to.
POWER SOURCES
This unit should be operated only from the type of power source indicated on the rating plate. If you are not sure
of the type of power supply to your home, consult your appliance dealer or local power company. For units
intended to operate from battery power, or other sources, refer to the operating instructions.
GROUNDING OR POLARIZATION
This unit is equipped with a polarized alternating-current line plug (a plug having one blade wider than the other).
This plug will fit into the power outlet only one way. This is a safety feature. If you are unable to insert the plug
fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact your electrician to replace your
obsolete outlet. Do not defeat the safety purpose of the polarized plug. If your unit is equipped with a 3-wire
grounding-type plug, a plug having a third (grounding) pin, this plug will only fit into a grounding-type power
outlet. This too, is a safety feature. If you are unable to insert the plug into the outlet, contact your electrician to
replace your obsolete outlet. Do not defeat the safety purpose of the grounding-type plug.
POWER-CORD PROTECTION
Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon
or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they
exit from the appliance.
LIGHTNING
To protect your unit from a lightning storm, or when it is left unattended and unused for long periods of time,
unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the unit
due to lightning and power line surges.
POWER LINES
An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or
power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system,
extreme care should be taken to keep from touching such power lines or circuits, as contact with them might be
fatal.
OVERLOADING
Do not overload wall outlets and extension cords, as this can result in a risk of fire or electric shock.
OBJECT AND LIQUID ENTRY
Do not push objects through any openings in this unit, as they may touch dangerous voltage points or short out
parts that could result in fire or electric shock. Never spill or spray any type of liquid into the unit.
PORTABLE CART WARNING
(symbol provided by RETAC)
S3126A
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IMPORTANT SAFEGUARDS
(CONTINUED)
OUTDOOR ANTENNA GROUNDING
If an outside antenna or cable system is connected to the unit, be sure the antenna or cable system is grounded
so as to provide some protection against voltage surges and built-up static charges. Section 810 of the National
Electrical Code, ANSI/NFPA 70, provides information with respect to proper grounding of the mast and supporting
structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of
antenna discharge unit, connection to grounding electrodes, and requirements for the grounding electrode.
SERVICING
Do not attempt to service this unit yourself as opening or removing covers may expose you to dangerous voltage
or other hazards. Refer all servicing to qualified service personnel.
DAMAGE REQUIRING SERVICE
Unplug this unit from the wall outlet and refer servicing to qualified service personnel under the following
conditions:
REPLACEMENT PARTS
When replacement parts are required, be sure the service technician uses replacement parts specified by the
manufacturer or those that have the same characteristics as the original parts.
Unauthorized substitutions may result in fire, electric shock or other hazards.
SAFETY CHECK
Upon completion of any service or repairs to this unit, ask the service technician to perform safety checks to
determine that the unit is in proper operating condition.
WALL OR CEILING MOUNTING
The product should be mounted to a wall or ceiling only as recommended by the manufacturer.
HEAT
The product should be situated away from heat sources such as radiators, heat registers, stoves, or other
products (including amplifiers) that produce heat.
DISC TRAY
Keep your fingers well clear of the disc tray as it is closing. It may cause serious personal injury.
CONNECTING
When you connect the product to other equipment, turn off the power and unplug all of the equipment from the
wall outlet. Failure to do so may cause an electric shock and serious personal injury. Read the owner's manual of
the other equipment carefully and follow the instructions when making any connections.
SOUND VOLUME
Reduce the volume to the minimum level before you turn on the product. Otherwise, sudden high volume sound
may cause hearing or speaker damage.
SOUND DISTORTION
Do not allow the product output distorted sound for a longtime. It may cause speaker overheating and fire.
HEADPHONES
When you use the headphones, keep the volume at a moderate level. If you use the headphones continuously
with high volume sound, it may cause hearing damage.
LASER BEAM
Do not look into the opening of the disc tray or ventilation opening of the product to see the source of the laser
beam. It may cause sight damage.
DISC
Do not use a cracked, deformed, or repaired disc. These discs are easily broken and may cause serious
personal injury and product malfunction.
NOTE TO CATV SYSTEM INSTALLER
This reminder is provided to call the CATV system installer's attention to Article 820-40 of the NEC that provides
guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the
grounding system of the building, as close to the point of cable entry as practical.
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a.
b.
c.
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f.
When the power-supply cord or plug is damaged.
If liquid has been spilled, or objects have fallen into the unit.
If the unit has been exposed to rain or water.
If the unit does not operate normally by following the operating instructions. Adjust only those controls that
are covered by the operating instructions, as an improper adjustment of other controls may result in
damage and will often require extensive work by a qualified technician to restore the unit to its normal
operation.
If the unit has been dropped or the cabinet has been damaged.
When the unit exhibits a distinct change in performance, this indicates a need for service.