LG DA-W6100A Manual de usuario
DVD RECEIVER
SERVICE MANUAL
MODEL:
DA-W6100A/D,
FE-6100CVE, FE-6100TE, FE-6100WE
FA-W6100SL, FA-W6100SR, ACC-W6100
SERVICEMANUALMODEL:
DA-W6100A/D,FE-6100CVE,FE-6100TE,FE-6100WEFA-W6100SL,FA-W6100SR,ACC-W6100
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- 1-1 -
CONTENTS
SECTION 1. GENERAL
• SERVICING PRECAUTIONS ..................................................................................................................... 1-2
• ESD PRECAUTIONS.................................................................................................................................. 1-4
• SPECIFICATIONS ...................................................................................................................................... 1-5
• LOCATION OF CUSTOMER CONTROLS ................................................................................................. 1-6
SECTION 2. AUDIO PART
• ELECTRICAL TROUBLESHOOTING GUDIE ............................................................................................ 2-1
• DVD PLAYER PROGRAM DOWNLOAD METHOD ................................................................................... 2-5
• WAVEFORMS OF MAJOR CHECK POINT ............................................................................................... 2-7
• INTERNAL BLOCK DIAGRAM OF ICs ....................................................................................................... 2-8
• IC VOLTAGE SHEET ............................................................................................................................... 2-10
• BLOCK DIAGRAM .................................................................................................................................... 2-13
• SCHEMATIC DIAGRAMS......................................................................................................................... 2-15
• PRINTED CIRCUIT DIARGAMS............................................................................................................... 2-27
SECTION 3. DVD PART
• ELECTRICAL TROUBLESHOOTING GUIDE ........................................................................................... 3-1
• BLOCK DIAGRAMS..................................................................................................................................... 3-9
• SCHEMATIC DIAGRAMS.......................................................................................................................... 3-13
• WAVEFORMS............................................................................................................................................ 3-21
• PRINTED CIRCUIT DIAGRAM .................................................................................................................. 3-27
SECTION 4. MECHANSIM ............................................................................................................. 4-1
SECTION 5. EXPLODED VIEWS ................................................................................................... 5-1
SECTION 6. REPLACEMENT PARTS LIST .................................................................................. 6-1
SECTION 7. SPEAKER PART
• ELECTRICAL TROUBLESHOOTING GUIDE ............................................................................................. 7-1
• BLOCK DIAGRAMS..................................................................................................................................... 7-6
• SCHEMATIC DIAGRAMS............................................................................................................................ 7-8
• WARING DIAGRAM................................................................................................................................... 7-14
• PRINTED CIRCUIT DIAGRAM .................................................................................................................. 7-16
• SPEAKER EXPLODED VIEWS..................................................................................................................
7-20
• REPLACEMENT PARTS LIST................................................................................................................... 7-28
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SECTION 1. GENERAL PART
SERVICING PRECAUTIONS
NOTES REGARDING HANDLING OF THE PICK-UP
1. Notes for transport and storage
1) The pick-up should always be left in its conductive bag until immediately prior to use.
2) The pick-up should never be subjected to external pressure or impact.
2. Repair notes
1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.
2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and
impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or
damage to the printed-circuit board.
3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason
the adjustment point and installation screws should absolutely never be touched.
4) Laser beams may damage the eyes!
Absolutely never permit laser beams to enter the eyes!
Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.
5) Cleaning the lens surface
If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used
for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a
cotton swab should be used, taking care not to distort this.
6) Never attempt to disassemble the pick-up.
Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do
not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of
this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.
- 1-2 -
Storage in conductive bag Drop impact
NEVER look directly at the laser beam, and don’t let
contact fingers or other exposed skin.
Magnet
How to hold the pick-up
Pressure
Pressure
Cotton swab
Conductive Sheet
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NOTES REGARDING COMPACT DISC PLAYER REPAIRS
1. Preparations
1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These
components are sensitive to, and easily affected by, static electricity. If such static electricity is high
voltage, components can be damaged, and for that reason components should be handled with care.
2) The pick-up is composed of many optical components and other high-precision components. Care must
be taken, therefore, to avoid repair or storage where the temperature of humidity is high, where strong
magnetism is present, or where there is excessive dust.
2. Notes for repair
1) Before replacing a component part, first disconnect the power supply lead wire from the unit
2) All equipment, measuring instruments and tools must be grounded.
3) The workbench should be covered with a conductive sheet and grounded.
When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag.
(This is because there is the possibility of damage by static electricity.)
4) To prevent AC leakage, the metal part of the soldering iron should be grounded.
5) Workers should be grounded by an armband (1MΩ)
6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent
static electricity changes in the clothing to escape from the armband.
7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin.
- 1-3 -
Armband
Conductive
Sheet
Resistor
(1 Mohm)
Resistor
(1 Mohm)
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ESD PRECAUTIONS
Electrostatically Sensitive Devices (ESD)
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components
commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated
circuits and some field-effect transistors and semiconductor chip components. The following techniques should
be used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off
any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a
commercially available discharging wrist strap device, which should be removed for potential shock reasons
prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive
surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can
generate electrical charges sufficient to damage ESD devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD
devices.
6. Do not remove a replacement ESD device from its protective package until immediately before you are ready
to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by
conductive foam, aluminum foil or comparable conductive materials).
7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the
protective material to the chassis or circuit assembly into which the device will by installed.
CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHER
SAFETY PRECAUTIONS.
8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion
such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can
generate static electricity sufficient to damage an ESD device).
CAUTION. GRAPHIC SYMBOLS
THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS
INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED
“DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF
ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE
SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE
LITERATURE.
- 1-4 -
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- 1-5 -
SPECIFICATIONS
Power supply AC 220V,60Hz
Power consumption 90W
[General] Mass 4.6kg
External dimensions (W x H x D) 360 X 72 X 350mm
Signal system NTSC
Laser Semiconductor laser, wavelength 650nm
Frequency range(audio) 4 Hz ~20 kHz
[CD/DVD] Signal-to-noise ratio(audio) More than 75dB(1kHz,NOP,20kHz LPF/A-Filter)
Dynamic range (audio) More than 75dB
Harmonic distortion(audio) 0.5%(1kHz, at 12Q position)
Video input 1.0V (p-p),75
Ω
,RCA jack
AM(MW) Video output 1.0V (p-p),75
Ω,
RCA jack
S-video output (Y)
1.0V(p-p),75 ΩMini DIN 4-pin
X
1
(Y)
0.3V(p-p)
Tuning Range 87.5 -108 MHz
TUNER(FM) Intermediate Frequency 10.7 MHz
Signal-to Noise Ratio 60dB
Frequency Response 150 -10,000 Hz
Outputs Stereo mode 50W +50W(8
Ω
,1kHz,THD 1%)
Surround mode Front:50W +50W(THD 1%)
Center:50W
AMP Surround: 50W +50W(8
Ω
1kHz,THD 1%)
Subwoofer: 80W(4
Ω
,30Hz,THD 1%)
Inputs VIDEO 1,2, OPTICAL AUDIO
Outputs VIDEO 1(AUDIO OUT):2V
WOOFER: 2V
Type FE-6100CVE FE-6100WE FE-6100TE, FA-W6100S
Impedance 8 ohm 4 ohm 8 ohm
SPEAKE SYSTEM
80dB/W/N 80dB/W/N 85dB/W/N
Frequency Response
110~40kHz 40 ~1.5kHz 110~40kHz
Rated Inut Power
50 100 50
Max. Input Power
100 200 100
Net dimensions (W x H x D)
329
x
117
x
90.5 350
x
326
x
350 270.5
x
1150
x
270.5
Net Weight 0.92kg 7.2kg 4.78kg
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- 1-6 -
LOCATION OF CUSTOMER CONTROLS
FRONT PANEL
DISPLAY WINDOW
SKIP/TUNE BUTTON
STOP BUTTON
PAUSE BUTTON
PLAY BUTTON
OPEN/CLOSE
DISC TRAY
FUNCTION
BUTTON
MENU
(MONO/STERO) BUTTON
VOLUME
CONTROLLER PHONE
CONNECTORs
TITLE (FM/AM)
BUTTON
POWER BUTTON
AND INDICATOR
SOUND MODE
INDICATOR
ANGLE ICON
INDICATOR
DISC INDICATOR PLAY/PAUSE INDICATOR
REC/RDS
INDICATOR
REPEAT PLAY BACK
MODE INDICATOR
TOTAL PLAYING TIME/ELAPSED
TIME/FREQUENCY/DELAY
TIME/VOLUME. INDICATORS
SLEEP
INDICATOR
TUNED
INDICATOR
STEREO
INDICATOR
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- 1-7 -
REAR PANEL
Y
SPEAKER
CONNECTORS
VIDEO SELECTOR
SWITCH
VIDEO1 (INPUT/OUT PUT)
CONNECTORS
S-VIDEO OUT
CONNECTOR
AM ANTENNA
CONNECTOR
FM300ΩCOAXAL
ANTENNA CONNECTOR
S-VIDEO
COMPONENT
SWITCH
VIDEO 2(INPUT)
CONNECTOR
WOOFER OUT
CONNECTOR
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- 1-8 -
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SECTION 2. AUDIO PART
ELECTRICAL TROUBLESHOOTING GUDIE
1.
Turn power on.
Is power on?
Does initial read work?
Does it play?
Does it output audio?
Check power supply circuit.
Check laser circuit.
Check focus circuit.
Check disc.
Check tracking servo circuit.
Check audio circuit.
OK
YES
YES
YES
YES
NO
NO
NO
NO
- 2-1 -
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