1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1. LEAKAGE CURRENT COLD
CHECK
1. Unplug the AC cord and connect a jumper between the two
prongs on the plug.
2. Measure the resistance value, with an ohmmeter, between
the jumpered AC plug and each exposed metallic cabinet
part on the equipment such as screwheads, connectors,
control shafts, etc. When the exposed metallic part has a
return path to the chassis, the reading should be between
1MΩ and 5.2MΩ.
When the exposed metal does not have a return path to
the chassis, the reading must be
Figure 1
.
1.1.2. LEAKAGE CURRENT HOT CHECK
(See Figure 1 .)
1. Plug the AC cord directly into the AC outlet. Do not use an
isolation transformer for this check.
2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF
capacitors, between each exposed metallic part on the set
and a good earth ground such as a water pipe, as shown in
Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more
sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the
voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the
above measuremen ts.
6. The potential at any point should not exceed 0.75 volts
RMS. A leakage current tester (Simpson Model 229 or
equivalent) may be used to make the hot checks, leakage
current mu3st not exceed 1/2 milliamp. In case a
measuremen t is outside of the limits specified, there is a
possibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the
customer.
2 PREVENTION OF ELECTRO STATIC DISCHARGE (ESD)
TO ELECTROSTATICALLY SENSITIVE (ES) DEVICES
Some semiconduct or (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatica lly Sensitive (ES) Devices. Examples of typical ES 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 electro static discharge (ESD).
1. Immediately before handling any semiconduct or component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
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 ES devices, place the assembly on a conductive surface such as alminum
foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propell ed chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, alminum foil or comparable
conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
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DVD-S77P P
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise hamless motion such as the brushing
together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to
damage an ES device).
3 Precaution of Laser Diode
4 About lead free solder (PbF)
Distinction of PbF PCB:
PCBs (manufactured) using lead free solder will have a PbF stamp on the PCB.
Caution:
· Pb free solder has a higher melting point than standard solder; Typically thmelting point is 50 - 70°F (30 - 40°C) higher.
Please use a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700 ±
20°F (370 ± 10°C).
· Pb free solder will tend to splash when heated too high (about 1100°F/ 600°C).
When soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the
soldering points with the Pb free solder until it melts enough.
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DVD-S77P P
5 PREVENTION OF STATIC ELECTRICITY DISCHARGE
The laser diode in the traverse unit (optical pickup) may brake down due to static electricity of clothes or human body. Use due
caution to electrostatic breakdown when servicing and handling the laser diode.
5.1. Grounding for electrostatic breakdown prevention
Some devices such as the DVD player use the optical pickup (laser diode) and the optical pickup will be damaged by static
electricity in the working environment. Proceed servicing works under the working environment where grounding works is
completed.
5.1.1. Worktable grounding
1. Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed, and ground the sheet.
5.1.2. Human body grounding
1. Use the anti-static wrist strap to discharge the static electricity form your body.
5.1.3. Handling of optical pickup
1. To keep the good quality of the optical pickup maintenance parts during transportatio n and before installation, the both ends of
the laser diode are short-circuited. After replacing the parts with new ones, remove the short circuit according to the correct
procedure. (See this Technical Guide.)
2. Do not use a tester to check the laser diode for the optical pickup. Failure to do so will damage the laser diode due to the power
supply in the tester.
5.2. Handling Precautions for Traverse Unit (Optical Pickup)
1. Do not give a considerable shock to the traverse unit (optical pickup) as it has an extremely high-precise structure.
2. When replacing the optical pickup, install the flexible cable and cut its short land with a nipper. See the optical pickup
replacement procedure in this Technical Guide. Before replacing the traverse unit, remove the short pin for preventing static
electricity and install a new unit. Connect the connector as short times as possible.
3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the cable.
4. The half-fixed resistor for laser power adjustment cannot be adjusted. Do not turn the resistor.
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6 DISASSEMBLING THE CASING AND CHECKING P.C.B.S
6.1. Disassembly Procedure
DVD-S77P P
6.2. Casing Parts and P.C.B. Positions
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DVD-S77P P
6.3. Top Panel
1. Unscrew the screws.
6.4. Tray (When taking out disc
manually)
1. Separates the gear for drawing out tray from the
mechanism unit. It inserts a screwdriver in the gear. (The
gear jig)
2. Insert the gear jig into the tray open/ close hole.
3. Turn the gear jig counterclockwise to open the tray.
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6.5. Front Panel
1. Remove the tray top from the tray section.
2. Release the tabs.
DVD-S77P P
6.7. Front (L) P.C.B. and Front (R)
P.C.B.
3. Release the tabs.
4. Remove the connector.
1. Unscrew the screws.
2. Remove the connector.
3. Unscrew the screws.
4. Remove the connector.
6.6. Mechanism Unit
1. Turn the gear jig clockwise to close the tray, turn until the
gear jig not to turn.
2. Unscrew the screws.
3. Remove the connectors.
4. Pull out the mechanism unit vertically.
<Caution to when insetting front panel>
1. FFC inserts in the crevice between a reflection piece and a
front panel.
2. Direction of an electrical conduction side and non-electrical
conduction side is checked.
3. The position of right and left of FFC is made into the
position which can be inserted in a connector.
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DVD-S77P P
6.8. Rear panel
1. Unscrew the screws
2. Release the tabs.
6.10. Mother P.C.B.
1. Unscrew the screws.
2. Remove the connector.
6.11. Power supply P.C.B.
1. Unscrew the screws.
2. Remove the connector.
6.9. Module P.C.B.
1. Unscrew the screws.
2. Remove the connectors.
3. Press each tab with the nipper to module PCB vertically.
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6.12. Service Position
6.12.1. Servicing position of the Module P.C.B.
DVD-S77P P
6.12.2. List of the Extension Cables
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DVD-S77P P
7 ASSEMBLING AND
DISASSEMBLING THE
MECHANISM UNIT
7.1. Disassembly Procedure
2. Slide the lever (A) in the arrow direction (to the opposite
side) till it stops.
3. Slide the lever (A) further by bending the tab at the right
side of the lever A in the right direction. (The right groove
opens and the boss becomes seen.)
4. Open the lever (B) to left. (The 2 grooves at the left side
open.)
7.2. Traverse Unit
1. Remove the connector.
5. Remove the traverse unit
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7.3. Tray
DVD-S77P P
1. Slide the guide tray unit while pressing the stopper in the
arrow direction, and remove the guide tray unit.
2. Raise the loading unit.
3. Slide the lever in the arrow direction till it stops and pull the
tray out.
5. Remove the drive arm concave phase from the tray slider
and tray.
<Assembling the tray unit>
1. Insert a part of the tray into the unit sliding over the
groove on the mechanical chassis unit.
2. Insert the tray to the point before the tab of the
mechanical chassis unit.
4. Spread the tabs at the both sides and pull the tray out. (The
tray slides a little forward and stops.)
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DVD-S77P P
3. Hook the drive arm concave phase over the tray and the
tray slider.
4. Press in the tray.
5. Make sure that the tray and the drive arm move
smoothly.
2. Hook the lock lever spring on the lock lever projection part
temporarily.
3. Unlock the tab and remove the lock lever.
7.4. Loading section
1. Spread the tabs at the both sides and push out the drive
arm shaft.
4. Remove the belt.
5. Unlock the tab and remove the pulley.
6. Remove the relay gear.
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7. Turn the change lever in the arrow direction till it stops.
8. Hook the change lever spring on the change lever project
part temporarily.
DVD-S77P P
13. Remove the drive rack, the sub rack and the drive gear.
9. Pull the lever (B) in the bottom side to your side and remove
the change lever.
10. Unscrew the screws.
11. Unlock the tabs and remove the guide piece (L).
12. Unlock the tabs and remove the guide piece (R).
7.5. Intermediate P.C.B.
1. Unscrew the screws
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DVD-S77P P
7.6. Optical Pickup Unit
7.6.1. Cautions to Be Taken in Handling the Optical Pickup Unit
The laser diode in the optical pickup unit may be damaged due to electrostatic discharge generating from clothes or human body.
Use due caution to electrostatic discharge damage when servicing the laser diode.
1. Do not give a considerable shock to the optical pickup unit as it has an extremely high-precise structure.
2. To prevent the laser diode from the electrostatic discharge damage, the Intermadiate FFC of the optical pickup unit removed
from the PCB should be short-circuite d with a short pin or a clip.
3. The Intermadiate FFC may be cut off if an excessive force is applied to it. Use caution when handling the Intermadiate FFC.
4. The antistatic FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the
Intermadiate FFC, cut off the antistatic FPC.
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7.6.2. Procedure for Disassembling the
Optical Pickup Unit
1. Spread the tabs to push in the pin.
DVD-S77P P
3. Remove the traverse deck.
2. Remove the pins.
4. Move the optical pickup unit in the arrow direction till it
stops.
5. Unscrew the screws.
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DVD-S77P P
6. Remove the drive rack.
7. Unscrew the screw
8. Slide the shaft in the arrow direction.
10. Remove the optical pickup unit.
9. Lift the optical pickup unit with the shaft.
11. Pull the shaft and the rubber out.
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<Assembling the optical pickup unit>
1. Pass the intermediate FPC through the frame hole.
2. Align the guide section of the optical pickup unit with the
rail.
3. Install the shaft top to the holder.
DVD-S77P P
2. Remove the cover while lifting the inner gear.
3. Remove the solders.
7.7. Traverse Motor
1. Unscrew the screws.
4. Remove the traverse motor.
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DVD-S77P P
5. Remove the floating rubber.
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DVD-S77P P
8 Self-Diagnosis Function and Service Modes
8.1. Optical Pickup Breakdown Diagnosis
The optical pickup self-diagnosi s function and tilt adjustment check function have been included in this unit. When repairing, use
the following procedure for effective Self-diagnos is and tilt adjustment.Be sure to use the self- diagnosis function before replacing
the optical pickup when "NO DISC" is displayed. As a guideline, you should replace the optical pickup when the value of the laser
drive current is more than 55.
Note:
Press the power button to turn on the power, and check the value within three minutes before the unit warms up. (Otherwise,
the result will be incorrect.)
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DVD-S77P P
8.2. Service Mode Table 1
The service modes can be activated by pressing various button combination on the player and remote control unit.
Player buttonsRemote control unit buttonsApplicationNote
PAUSE
+
OPEN/CLOSE
PAUSE
SKIP/SEARCH<<
OPEN/CLOSE
0Displaying the UHF display F_ _ _Refer to section 8.3. Self-
5Jitter check, tilt adjustment
*Display shows J_xxx/yyy_zz
"yyy" and "zz" shown to the right have nothing to do with the jitter
value. "yyy" is the error counter, while "zz" is the focus drive
value.
Refer to section 10.4. for Optical Pickup Tilt Adjustment
Procedure.
6Checking the region numbers and broadcast system
7Checking the program versionCheck the IC6301 FLASH
9Lighting Confirmation Function of Display Tube
DISPLAYChecking the laser drive currentRefer to section 7
PAUSEWriting the laser drive current value after replacing the optical
pickup (do not use for anything other than optical pickup
replacement)
Initializing the DVD player
(restoring factory preset settings)
Diagnosis Function (UHF
Display).
Refer to section 10.4.
Optical Pickup Tilt
Adjustment
ROM program.
Optical Pickup
Replacement Procedure.
Refer to section 8.5.
Initializing the DVD
player.
region code
F0C2A) DVD: PAL restricted playbackPCND_NOPLAY PAL 0x90DiscManager0xDOC2
F0C3B) DVD: Parentallocksetting
prohibits the playback of the entire
title
F0C4C) VCD: Prohibited because it is in
PHOTO CD fromat
F0C5VCD/CD: Prohibited because it is
CDROM without CD-DA
PCND_NOPLAYPHYSICAL
0x50
PCND_NOPLAY VIDEO 0x70DiscManager0xDOC0
PCND_NOPLAY RCD 0x80DiscManager0xDOC1
PCND_NOPLAY PTL 0xA0DiscManager0xDOC3
PCND_NOPLAY PHOTO CD
0xB0
PCND_NOPLAY CDROM 0xC0 DiscManager0xDOC5
DriveManager0xDOBF
DiscManager0xDOC4
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DVD-S77P P
8.5. Service mode table 2
Pressing various button combinations on the player and remote control unit can activate the service modes.
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DVD-S77P P
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DVD-S77P P
8.6. Sales demonstration lock function
This function prevents discs from being lost when the unit is used for sales demonstratio ns by disabling the disc eject function.
"LOCKED" is displayed on the unit, and ordinary operation is disabled.
8.6.1. Setting
The sales demonstratio n lock is set by simultaneous ly pressing STOP button on the player and POWER button on the remote
control unit for 1 second or longer.
8.6.2. Cancellation
The lock can be cancelled by the same procedure as used in setting. ("UNLOCK" is displayed on cancellation. Disconnecting the
power cable from power outlet does not cancel the lock.)
8.7. Handling After Completing Repairs
Use the following procedure after completing repairs.
8.7.1. Method
Confirm that the power is turned on:
1. Press the "OPEN/CLOSE" button to close the tray.
2. Press the "POWER" button to turn off the power.
3. Disconnect the power plug from the outlet.
8.7.2. Precautions
Do not disconnect the power plug from the outlet with the tray still open, then close the tray manually.
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9 Service Precautions
9.1. Recovery after the dvd player is repaired
· W hen FROM or module P.C.B. is replaced, carry out the recovery processing to optimize the drive.
Playback the recovery disk to process the recovery automatically .
· Recovery disc [Product number: RFKZD03R005] (RFKZD03R004 can not be recovered as a partial item.
So use the new recovery disc, RFKZD03R005.)
· Performing recovery
1. Load the recovery disc RFKZD03R005 on to the player and run it.
2. Recovery is performed automatically . When it is finished, a message appears on the screen.
3. Remove the recovery disc.
4. Turn off the power.
Note:
This unit requires no initialization process carried out after the traditional DVD players were repaired.
When the recovery measures are taken, the customer setting will return to the factory setting as same as the procedure
described in item of "Initialization " in 8.5. is carried out. Write down the contents of the setting before recovery processing, and
reset the player.
9.2. Firmware version-up of the DVD player
DVD-S77P P
· The firmware of the DVD player may be renewed to improve the quality including operationabil ity and playerbility to the
substandard discs.proces sing to optimize the drive.
The recovery disc has also firmware version- up.
·After version-up, recovery processing is executed automatically .
·Part number of the recovery disc for version-up will be noticed when it is supplied.
·Updating firmware
1. Load the recovery disc that is supplied to the player and run it.
2. Firmware version of the player is automatically checked. Appropriate message appears whenever necessary.
3. Using remote controller´s cursor key, select whether version updating is to be done or not. (Selection of Yes/No)
4. a. If Yes is selected, version updating is performed.
b. If No is selected, only recovery is performed.
5. a. When updating is finished, remove the disc according to the message appearing on the screen.
b. Remove the disc according to the message appearing on the screen.
6. Turn off the power.
Note:
If the AC power supply is shut out during version-up due to a power failure, the version-up is improperly carried out.
In such a case, replace the FROM and carry out the version-up again.
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DVD-S77P P
10 ADJUSTMENT PROCEDURES
10.1. Service Tools and Equipment
ApplicationNameNumber
Tilt adjustmentDVD test discDVDT-S15 or DVDT-S01
TORX screw driver (T6)Available on sales route. (T6) or
InspectionExtension cable (module P.C.B. to mother P.C.B.)JGS0098
Extension cable (module P.C.B. to mother P.C.B.)JGS0098
OthersHanarlVFK1784
GreaseRFKXPG641
DrysurfRFKXGUD24
ConfirmationCD test discPVCD-K06 or any other commercially
VCD test discPVCD-K06 or any other commercially
Recovery discRFKZD03R005
RFKZ0185
available disc
available disc
10.2. Important points in adjustment
10.2.1. Important points in optical adjustment
·Before starting optical adjustment, be sure to take anti-static measures.
·Optical pickup tilt adjustment is needed after replacement of the following components.
1. Optical pickup unit
2. Spindle motor unit
3. Optical pickup peripheral parts (such as rail)
Notes
Adjustment is generally unnecessary after replacing other parts of the traverse unit. However, make adjustment if there is a
noticeable degradation in picture quality. Optical adjustments cannot be made inside the optical pickup. Adjustment is generally
unnecessary after replacing the traverse unit.
10.2.2. Important points in electrical adjustment
·Follow the adjustment procedures described in this Manual.
10.3. Storing and Handling Test Discs
· Surface precision is vital for DVD test discs. Be sure to store and handle them carefully.
1. Do not place discs directly onto the workbench, etc., after use.
2. Handle discs carefully in order to maintain their flatness. Place them into their case after use and store them vertically. Store
discs in a cool place where they are not exposed to direct sunlight or air from air conditioners.
3. Accurate adjustment will not be possible if the disc is warped when placed on a surface made of glass, etc. If this happens, use
a new test disc to make optical adjustments.
4. If adjustment is done using a warped disc, the adjustment will be incorrect and some discs will not be playable.
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10.4. Optical adjustment
10.4.1. Optical pickup tilt adjustment
Measurement pointAdjustment pointModeDisc
Tangential adjustment screw
Tilt adjustment screw
Measuring equipmentAdjustment value
None (Main unit display for servicing is used.)Adjust to the minimum jitter value.
10.4.1.1. Adjustment procedure
1. While pressing PAUSE and OPEN/CLOSE buttons on the
main unit, press "5" on the remote control unit.
2. Confirm that "J_xxx/yyy_z z" is shown on the front display.
For your information:
"yyy" and "zz" shown to the right have nothing to do with
the jitter value. "yyy" is the error counter, while "zz" is
the focus drive value.
Note:
Jitter value appears on the front display.
3. Play test disc T30 (central periphery).
4. Adjust tangential adjustment screw so that the jitter value is
minimized.
5. Play test disc T30 (central periphery).
6. Adjust tilt adjustment screw 1 so that the jitter value is
minimized.
7. Play test disc T30 (central periphery).
8. Adjust tilt adjustment screw 2 so that the jitter value is
minimized.
9. Repeat adjusting tilt adjustment screws 1 and 2 alternately
until the jitter value is minimized.
10. Finally please reproduce T01 (inner periphery) and T43
(outer periphery) and check the jitter value. (Please
readjust, when the jitter value is extremely different.)
10.4.1.2. Important points
1. Make tangential adjustment first, and then make tilt
adjustment.
2. Repeat adjusting two or three times to find the optimum
point.
3. Finish the procedure with tilt adjustment.
T01 (inner periphery) play
T30 (central periphery) play
T43 (outer periphery) play
10.4.1.3. Check after adjustment
Play test disc or any other disc to make sure there is no picture
degradation in the inner, middle and outer peripheries, and no
audio skipping. After adjustment is finished, lock each
adjustment screw in position using screw lock.
10.4.1.4. Procedure for screw lock
1. After adjustment, remove top cover, tray, clamper base and
traverse unit in this sequence.
2. Lay the traverse unit upside down, and fix adjustment screw
with screw lock.
3. After fixing, reassemble traverse unit, clamper base, tray
and top cover.
DVD-S77P P
DVDR-S15 or DVDT-S01
Jitter value depends on the model:
1. If the jitter value changes like B, the optimum point is easy to
find.
2. If the jitter value changes like A, set the optimum point near the
middle.
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DVD-S77P P
11 Abbreviations
INITIAL/LOGOABBREVIATIONS
AA0~UP
ACLK
AD0~UP
ADATA
ALE
AMUTE
AREQ
ARF
ASI
ASO
ASYNC
DEEMP
DEMPH
DIG0~UP
DIN
DMSRCK
DMUTE
DO
DOUT0~UP
DRF
DRPOUT
DREQ
DRESP
DSC
DSLF
DVD
ADDRESS
AUDIO CLOCK
ADDRESS BUS
AUDIO PES PACKET DATA
ADDRESS LATCH ENABLE
AUDIO MUTE
AUDIO PES PACKET REQUEST
AUDIO RF
SERVO AMP INVERTED INPUT
SERVO AMP OUTPUT
AUDIO WORD DISTINCTION SYNC
BIT CLOCK (PCM)
BIT CLOCK INPUT
BLACK DROP OUT
SUB CODE BLOCK CLOCK
CAP. FOR BOTTOM HOLD
BYPATH
BYTE CLOCK
CONSTANT ANGULAR VELOCITY
CAP. BLACK DROP OUT
COMPACT DISC
CD SERIAL DATA CLOCK
CD SERIAL DATA
CD RF (EFM) SIGNAL
COMPACT DISC-VIDEO
CHANNEL DATA
SYSTEM CLOCK SELECT
CONSTANT LINEAR VELOCITY
CAP. OFF TRACK
CPU ADDRESS
CPU CHIP SELECT
CPU DATA
CPU ADDRESS LATCH
CPU ADDRESS DATA BUS
CPU INTERRUPT REQUEST
CPU READ ENABLE
CPU WRITE ENABLE
CHIP SELECT
COMPOSITE SYNC IN
COMPOSITE SYNC OUT
D/A CONVERTER CLOCK
DEEMPHASIS BIT ON/OFF
DEEMPHASIS SWITCHING
FL DIGIT OUTPUT
DATA INPUT
DM SERIAL DATA READ CLOCK
DIGITAL MUTE CONTROL
DROP OUT
DATA OUTPUT
DATA SLICE RF (BIAS)
DROP OUT SIGNAL
DATA REQUEST
DATA RESPONSE
DIGITAL SERVO CONTROLLER
DATA SLICE LOOP FILTER
DIGITAL VIDEO DISC
INITIAL/LOGOABBREVIATIONS
EEC
ECR
ENCSEL
ETMCLK
ETSCLK
FFBAL
FCLK
FE
FFI
FEO
FG
FSC
FSCK
GGNDCOMMON GROUNDING (EARTH)
HHA0~UP
HD0~UP
HINT
HRXW
IIECOUT
IPFRAG
IREF
ISEL
LLDON
LPC
LRCK
MMA0~UP
MCK
MCKI
MCLK
MDATA
MDQ0~UP
MDQM
MLD
MPEG
OODC
OFTR
OSCI
OSCO
OSD
PP1~UP
PCD
PCK
PDVD
PEAK
PLLCLK
PLLOK
PWMCTL
PWMDA
PWMOA, B
ERROR TORQUE CONTROL
ERRORTORQUECONTROL
REFERENCE
ENCODER SELECT
EXTERNAL M CLOCK (81MHz/40.5MHz)
EXTERNAL S CLOCK (54MHz)
FOCUS BALANCE
FRAME CLOCK
FOCUS ERROR
FOCUS ERROR AMP INVERTED INPUT
FOCUS ERROR AMP OUTPUT
FREQUENCY GENERATOR
FREQUENCY SUB CARRIER
FS (384 OVER SAMPLING) CLOCK
HOST ADDRESS
HOST DATA
HOST INTERRUPT
HOST READ/WRITE
IEC958 FORMAT DATA OUTPUT
INTERPOLATION FLAG
I (CURRENT) REFERENCE
INTERFACE MODE SELECT
LASER DIODE CONTROL
LASER POWER CONTROL
L CH/R CH DISTINCTION CLOCK
MEMORY ADDRESS
MEMORY CLOCK
MEMORY CLOCK INPUT
MEMORY SERIAL COMMAND CLOCK
MEMORY SERIAL COMMAND DATA
MEMORY DATA INPUT/OUTPUT
MEMORY DATA I/O MASK
MEMORY SERIAL COMMAND LOAD
MOVING PICTURE EXPERTS GROUP
OPTICAL DISC CONTROLLER
OFF TRACKING
OSCILLATOR INPUT
OSCILLATOR OUTPUT
ON SCREEN DISPLAY
PORT
CD TRACKING PHASE DIFFERENCE
PLL CLOCK
DVD TRACKING PHASE DIFFERENCE
CAP. FOR PEAK HOLD
CHANNEL PLL CLOCK
PLL LOCK
PWM OUTPUT CONTROL
PULSE WAVE MOTOR DRIVE A
PULSE WAVE MOTOR OUT A, B
SERIAL DATA INPUT
SERIAL DATA OUTPUT
SERIAL CLOCK
SERIAL DATA CLOCK
AUDIO SERIAL CLOCK RECEIVER
SERIAL CLOCK
SERIAL CLOCK
SERIAL DATA
FL SEGMENT OUTPUT
SELECT CLOCK
SERIAL PORT ENABLE
SERIAL DATA IN
SERIAL DATA OUT
SERIAL PORT DATA INPUT
SERIAL PORT DATA OUTPUT
SERIAL PORT R/W ENABLE
SERIAL PORT READ CLOCK
SERIAL PORT WRITE CLOCK
SUB CODE Q CLOCK
SUB CODE Q DATA READ CLOCK
SERIAL DATA
SRAM ADDRESS BUS
SRAM DATA BUS 0~7
START/STOP
STATUS
STREAM DATA CLOCK
STREAM DATA
STREAM DATA INPUT ENABLE
STREAM DATA POLARITY SELECT
STREAM DATA VALIDITY
SUB CODE SERIAL
SUB CODE CLOCK
SUB CODE Q DATA
SYSTEM CLOCK
TRACKING ERROR
BALANCE CONTROL
BALANCE OUTPUT 1
BALANCE INPUT
BALANCE INPUT
BALANCE OUTPUT 2
OP AMP INPUT
OP AMP OUTPUT
OP AMP INVERTED INPUT
TRACK CROSS SIGNAL
TRACKING ON
TRAVERSE SERVO ON
INITIAL/LOGOABBREVIATIONS
VVBLANK
VCC
V BLANKING
COLLECTOR POWER SUPPLY
VOLTAGE
VCDCONT
VIDEO CD CONTROL (TRACKING
BALANCE)
VDD
VFB
VREF
VSS
WWAIT
WDCK
WEH
WSR
XX
XALE
XAREQ
XCDROM
XCS
XCSYNC
XDS
XHSYNCO
XHINT
XI
XINT
XMW
XO
XRE
XSRMCE
XSRMOE
XSRMWE
XVCS
XVDS
XVSYNCO
DRAIN POWER SUPPLY VOLTAGE
VIDEO FEED BACK
VOLTAGE REFERENCE
SOURCE POWER SUPPLY VOLTAGE
BUS CYCLE WAIT
WORD CLOCK
WRITE ENABLE HIGH
WORD SELECT RECEIVER
X´ TAL
X ADDRESS LATCH ENABLE
X AUDIO DATA REQUEST
X CD ROM CHIP SELECT
X CHIP SELECT
X COMPOSITE SYNC
X DATA STROBE
X HORIZONTAL SYNC OUTPUT
XH INTERRUPT REQUEST
X´ TAL OSCILLATOR INPUT
X INTERRUPT
X MEMORY WRITE ENABLE
X´ TAL OSCILLATOR OUTPUT
X READ ENABLE
X SRAM CHIP ENABLE
X SRAM OUTPUT ENABLE
X SRAM WRITE ENABLE
X V-DEC CHIP SELECT
X V-DEC CONTROL BUS STROBE
X VERTICAL SYNC OUTPUT
DVD-S77P P
31
Page 32
IC1125
DVD-S77P P
12 VOLTAGE CHART
Note:
· Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point,
because it may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition
and product itself.
· Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point, because it may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition and product
itself.
13.1. OVERALL BLOCK DIAGRAM
DVD-S77P P
MECHANISM UNIT
OPTICAL
PICK UP
UNIT
SPINDLE
MOTOR
TRAVERSE
MOTOR
LOADING
MOTOR
MODULE P.C.B.MOTHER P.C.B.INTERMEDIATE P.C.B.
IC8271
SPINDLE
MOTOR
DRIVE
IC8251
LOADING
MOTOR
DRIVE
IC8651
32Mbit
FLASH
ROM
IC8631
LATCH
IC8641
LATCH
IC8001
AV
DECODER
(DV2.2)
IC8451
8CH
AUDIO D/A
CONVERTER
IC3901
DIGITAL
AUDIO OUT
(OPTICAL)
DIGITAL
AUDIO OUT
(COX)
MIX L
MIX R
FL
FR
SL
SR
CNT
SW
TRAY
FL
LED
KEY
REMOTE CTL
IC6001
OPERATION
CPU
MOTHER P.C.B.FRONT (L)/(R) P.C.B.
IC8611
16Kbit
EEP ROM
IC8051
64Mbit
SDRAM
IC8061
64Mbit
SDRAM
IC3701
PROGRESSIVE
IC3761
64Mbit
SDRAM
HDMI
IC3201
VIDEO D/A
CONVERTER
HDMI AV OUT
IC3501
S-VIDEO OUT
VIDEO
DRIVER
DVD-S77PP
OVERALL BLOCK DIAGRAM
VIDEO OUT(LINE)
Y
P
B
P
R
37
Page 38
DVD-S77P P
13.2. POWER SUPPLY BLOCK DIAGRAM
AC SOCKET
P1001
D1002
SURGE
KILLER
F1001
L1001
LINE
FILTER
IC1021
D1011,C1011
RECTIFIER
CONSTANT
VOLTAGE
CONTROL
SECONDARY CIRCUITPRIMARY CIRCUIT
T1021
POWER
TRANSFORMER
11
12
16
17
NSW+9V/+12V
NSW-9V/-12V
PR1121
PROTECTOR
Q1115
REG.13
QR1115
SWITCH
IC1125
VC
1
2
ON/OFF
OUTIN
42
N.POWER OFF
IC1151
(REG.M+9V)
31OUTIN
VCC
AUDIO
OP AMPS
VEE
D+1.8V
A+5V
D+5V
L
M+9V
NSW+5.1V
IC6001
(OPERATION CPU)
40
N.P.OFF
L
DGT15563
DGT9
SEG77864
SEG21
HDMI V LED
HDMI A LED
HDMI M LED
HDMI 720P LED
FL
D6121
QR6054
1
2
3
7
HDMI VIDEO
LED DRIVE
QR6053
HDMI AUDIO
LED DRIVE
QR6052
HDMI MULTI
CH LED DRIVE
QR6051
HDMI 720P
LED DRIVE
D6122
D6123
HDMI VIDEO
HDMI AUDIO
/MULTI CH
HDMI 720P
Q1051
PHOTO
COUPLER
SHUNT
REG.
IC1101
IC6101
IR
RECEIVER
FL-24V
IC6011
RESET 1
X6001
QR6055
BLUE LED1
DRIVE
QR6056
BLUE LED2
DRIVE
PAUSE
PLAY
STOP
KEY IN2
KEY IN0
KEY IN1
99
98
18
16
17
1
33
REMOTE CTL
OSC2
9
OSC1
10
26 RST
BLUE LED1
BLUE LED2
D6102,D6152
BLUE LED1
D6101,D6151
BLUE LED2
S6153
S6154
S6155
AV ENHANCER
S6152
OPEN/CLOSE
S6151
POWER
S6101
FWD-SKIP
S6156
RVS-SKIP
S6157
DVD-S77PP
POWER SUPPLY
BLOCK DIAGRAM
38
Page 39
13.3. SERVO BLOCK DIAGRAM
DVD-S77P P
RF SIGNALMOTOR DRIVE SIGNALTRACKING ERROR SIGNALFOCUS ERROR SIGNAL
This schematic diagram may be modified at any time with the development of new technology.
Important safety notice:
Components identified by
Furthermore, special parts which have purpose of fire-retardant (resistors), high-quality sound (capacitors), low-noise
(resistors), etc. are used. When replacing any of components, be sure to use only manufacture ´s specified parts shown in
theparts list.
Important safety notice:
There are special components used in this equipment which are important for safety.
These parts are marked by
manufacturer’s specified parts to prevent shock, fire, or other hazards. Do not modify the original design without permission of
manufacturer.
Caution!
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during repair.
Cover the parts boxes made of plastics with aluminum foil.
Ground the soldering iron.
Put a conductive mat on the work table.
Do not touch the legs of IC or LSI with the fingers directly.
mark have special characteristic s important for safety.
in the schematic diagrams. It is essential that these critical parts should be replaced with
44
Page 45
15 SCHEMATIC DIAGRAM
15.1. POWER SUPPLY SCHEMATIC DIAGRAM
DVD-S77P P
45
DVD-S77PP
POWER SUPPLY
SCHEMATIC DIAGRAM
Page 46
DVD-S77P P
15.2. INTERMEDIATE SCHEMATIC DIAGRAM
46
DVD-S77PP
INTERMEDIATE
SCHEMATIC DIAGRAM
Page 47
15.3. FRONT SECTION (MODULE P.C.B. (1/6)) SCHEMATIC DIAGRAM
A
:FRONT SECTION
B
:DV2 SECTION
C
:PROG SECTION
D
:VD SECTION
E
:HDMI SECTION
F
:AUDIO SECTION
DVD-S77P P
A
47
DVD-S77PP
FRONT SECTION
(MODULE P.C.B.(1/6))
SCHEMATIC DIAGRAM
ADDRESS INFORMATION
C……COMPONENT SIDE
F……FOIL SIDE
CP3902F-8FCP8654E-4FTC4203E-1FTP8502C-3C
CP8046D-3FCP8690E-3FTC8283B-3C
CP8231C-4FCP8696D-3FTC8504B-6F
TC3220D-1FTP8220C-5F
F
MODULE P.C.B.
TC4212D-1F
TP8519B-6F
63
Page 64
DVD-S77P P
16.6. MOTHER P.C.B.
MOTHER P.C.B.
F
E
D
C
B
A
DVD-S77PP
MOTHER P.C.B.
(REP3685GB-C)
1
234567
64
Page 65
16.7. FRONT (L) / FRONT (R) P.C.B.
E
FRONT (L) P.C.B.
DVD-S77P P
D
C
FRONT (R) P.C.B.
B
A
DVD-S77PP
FRONT (L) P.C.B. (REP3685GC-C)
FRONT (R) P.C.B. (REP3685GD-C)
1
2345678
65
Page 66
DVD-S77P P
66
Page 67
17 EXPLODED VIEWS
17.1. CASING PARTS & MECHANISM SECTION EXPLODED VIEW
DVD-S77P P
67
Page 68
DVD-S77P P
17.2. MECHANISM SECTION EXPLODED VIEW
68
Page 69
17.3. PACKING & ACCESSORIES SECTION EXPLODED VIEW
DVD-S77P P
69
Page 70
DVD-S77P P
18 REPLACEMENT PARTS LIST
Notes:
*Important safety notice:
Componentsidentifiedby
markhavespecial
characteristic s important for safety.
Furthermore, special parts which have purposes of fireretardant (resistors), high-quality sound (capacitors), lownoise (resistors), etc. are used.
When replacing any of components, be sure to use only
manufacture’s specified parts shown in the parts list.
*Warning: This product uses a laser diode. Refer to caution
statements.
*Capacity values are in microfarads (µF) unless specified
otherwise, P=Pico-farads (pF), F=Farads (F).
*Resistance values are in ohms, unless specified otherwise,
1K=1,000 (OHM), 1M=1,000k (OHM).
*The marking (RTL) indicates the retention time is limited
for this item. After the discontinuati on of this assembly in
production, it will no longer be available.
*“<IA>”, marks in Remarks indicate languages of instruction
manuals. [<IA>: English/ Canadian French.]