Yamaha DVD-S795 User manual

DVD-S795/S705
DVD PLAYER
DVD-S795/S705
SERVICE MANUAL
For U, C, B, A, G modelsFor U, C, B, A, G models
For U, C, B, A, G modelsFor U, C, B, A, G models
For U, C, B, A, G models
Printed in Japan
100666
IMPORTANT NOTICE
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherant to the industry, and more specifically YAMAHA Products, are
already known and understood by the users, and have therefore not been restated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal
injury, destuction of expensive components and failure of the product to perform as specified. For these reasons,
we advise allYAMAHAproduct owners that any service required should be performed by an authorized
YAMAHARetailer or the appointed service representaive.
IMPORTANT: The presentation or sale of this manual to any individual or firm dose not constitute authorization, certification or
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The reseach, engineering, and
service departments ofYAMAHAare continually striving to improveYAMAHAproducts. Modifications are, therefore, inevitable
andspecifications are subjectto change withoutnoticeor obligation toretrofit. Should anydiscrepancy appear toexist, please contact
the distributor’s Service Division.
WARNING: Static discharges can destroy expensive components. Dischage any static electricity your body may have accu-
mulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss.)
IMPORTANT: Turn theunit OFFduring disassembly andparts replacement. Recheckall workbefore youapply powerto theunit.
本资料由ＯＫＸＩＡ视听皮带资源库ｗｗｗ．ｏｋｘｉａ．ｃｎ提供

DVD-S795/S705
SECTION 1
SPECIFICATIONS ...................................................................... 1-1
LOCALE MANAGEMENT INFORMATION ................................. 1-1
TO SERVICE PERSONNEL ....................................................... 1-2
PREVENTION OF ESD TO ES DEVICES.................................. 1-3
PRECAUTION OF LASER DIODE ............................................. 1-4
HANDILNG PRECAUTIONS FOR TRAVERSE DECK............... 1-4
REAR PANELS ........................................................................... 1-5
OPTICAL PICKUP SELF-DIAGNOSIS AND REPLACEMENT PROCEDURE .... 1-6
SELF-DIAGNOSIS FUNCTION AND SERVICE MODE ............. 1-7
SERVICE PRECAUTIONS ......................................................... 1-9
SERVICE TOOLS AND EQUIPMENT ........................................ 1-9
OPERATING INSTRUCTIONS ................................................. 1-10
SECTION 2
ASSEMBLING AND DISASSEMBLING THE CASING AND CHECKING
C. B. A.s
1. Disassembly Procedure ....................................................... 2-1
2. Casing Parts and C.B.A. Positions ...................................... 2-2
3. Service Positions ................................................................. 2-2
4. Disassembling the Top Cover .............................................. 2-3
5. Disassembling the Tray........................................................ 2-3
6. Disassembling the Front Panel ............................................ 2-3
7. Disassembling the Loading Base Unit ................................. 2-3
8. Checking the Module C.B.A. ................................................ 2-4
9. Disassembling the Rear Panel............................................. 2-4
10. Checking the Power Supply C.B.A. ..................................... 2-5
11. Checking the Mother C.B.A. ................................................ 2-5
12. Checking the Power Switch C.B.A. ...................................... 2-5
13. Checking the Front Switch C.B.A......................................... 2-5
14. Checking the Headphone C.B.A. ......................................... 2-5
ASSEMBLING AND DISASSEMBLING THE OPTICAL PICKUP
1. Handling the Optical Pickup ................................................. 2-6
2. Disassembly Procedure ....................................................... 2-6
3. Lubricating the Loading Base Unit ....................................... 2-7
4. Static Electricity Countermeasures ...................................... 2-8
5. Disassembling the Clamp Base Unit.................................... 2-9
6. Disassembling the Clamp Weight, Clamper Yoke,
Magnet and Clamper ........................................................... 2-9
7. Disassembling the Traverse Unit ......................................... 2-9
8. Disassembling the Stepping Motor Unit ............................. 2-10
9. Disassembling the Optical Pickup Unit .............................. 2-10
10. Disassembling the Nut Unit................................................ 2-11
11. Disassembling the Sub-Shaft Preload Spring.................... 2-11
12. Assembling the Optical Pickup .......................................... 2-11
13. Disassembling the Spindle Motor Unit ............................... 2-12
14. Optical Pickup Tilt Adjustment............................................ 2-13
15. Disassembling the Intermediate Chassis ........................... 2-15
16. Disassembling the Vertical Cam and Drive Gear ............... 2-15
17. Disassembling the Pulley Gear and Deceleration Gear..... 2-15
18. Disassembling the Mechanism Loading C.B.A. ................. 2-15
19. Lubricating the Optical Pickup and Peripheral parts .......... 2-16
ELECTRICAL ADJUSTMENT
1. Video Output (Luminance Signal) Adjustment ................... 2-17
2. Video Output (Chrominance Signal) Adjustment ............... 2-17
3. Video Component Signal (CB) Output Adjustment ............ 2-18
SECTION 3
ABBREVIATIONS ....................................................................... 3-1
BLOCK DIAGRAM
1. OVERRALL BLOCK DIAGRAM ........................................... 3-3
2. SERVOBLOCK DIAGRAM................................................... 3-5
3. VIDEO BLOCK DIAGRAM ................................................... 3-7
4. AUDIO BLOCK DIAGRAM................................................... 3-9
SCHEMATIC DIAGRAM
1. POWER SUPPLY SCHEMATIC DIAGRAM (FOR U, C MODELS) .... 3-11
2. POWER SUPPLY SCHEMATIC DIAGRAM (FOR B, G, A MODELS) 3-13
3. ADSC (MODULE C.B.A. 1/8) SCHEMATIC DIAGRAM ..... 3-15
4. SERVO (MODULE C.B.A. 2/8) SCHEMATIC DIAGRAM... 3-17
5. AV DECODER (MODULE C.B.A. 3/8) SCHEMATIC DIAGRAM ... 3-19
6. VDAC (MODULE C.B.A. 4/8) SCHEMATIC DIAGRAM ..... 3-21
7. FEP (MODULE C.B.A. 5/8) SCHEMATIC DIAGRAM ........ 3-23
8. CPU (MODULE C.B.A. 6/8) SCHEMATIC DIAGRAM........ 3-25
9. CLOCK (MODULE C.B.A. 7/8) SCHEMATIC DIAGRAM ... 3-27
10. ODC (MODULE C.B.A. 8/8) SCHEMATIC DIAGRAM ....... 3-29
11. VIDEO (MODULE C.B.A. 1/5) SCHEMATIC DIAGRAM .... 3-31
12. ADAC C (MODULE C.B.A. 2/5) SCHEMATIC DIAGRAM... 3-33
13. AUDIO AC-3 (MODULE C.B.A. 3/5) SCHEMATIC DIAGRAM ... 3-35
14. AUDIO OUT (MODULE C.B.A. 4/5) SCHEMATIC DIAGRAM.. 3-37
15. OPERATION (MODULE C.B.A. 5/5) SCHEMATIC DIAGRAM... 3-39
16. VIDEO COMP SCHEMATIC DIAGRAM (FOR U, C MODELS) ... 3-41
17. SCART SCHEMATIC DIAGRAM (FOR B, G MODELS) .... 3-43
18. FRONT SW/HEAD PHONE/POWER SW SCHEMATIC DIAGRAM ... 3-45
CIRCUIT BOARD DIAGRAM
1. POWER SUPPLY C.B.A. (FOR U, C MODELS) ................ 3-47
2. POWER SUPPLY C.B.A. (FOR B, G,A MODELS) ............ 3-49
3. MODULE C.B.A. ................................................................ 3-51
4. MOTHER C.B.A. ................................................................ 3-55
5. FRONT SW/HEAD PHONE/POWER SW C.B.A. .............. 3-57
6. SCART C.B.A. (FOR B, G MODELS). ............................... 3-59
7. VIDEO COMP C.B.A. (FOR U, C MODELS) ..................... 3-61
SECTION 4
EXPLODED VIEWS & REPLACEMENT PARTS LIST
1. ELECTRICAL REPLACEMENT PARTS LIST ...................... 4-1
2. Casing Parts & Mechanism Section................................... 4-18
3. Loading Mechanism Section.............................................. 4-21
4. Traverse Section ................................................................ 4-23
5. REMOTE CONTROL TRANSMITTER............................... 4-25
CONTENTS

DVD-S795/S705
1 - 1
SECTION 1
SPECIFICATIONS
Power requlrements: For U, C models
AC 120V,60Hz
For B, A, G models
AC 220 – 240V, 50Hz
Power consumption: For U, C models
19W (approx. 1W when set to the standly
mode)
For B, G models
20W (approx. 2.5W when set to the standby
mode)
For A models
19W (approx.2Wwhenset tothestandbymode)
Signal system: For U, C models
NTSC
For B, A, G models
PAL 625/50, PAL 525/60, NTSC
Weight: 7.9lbs. (3.6kg)
For G:Gold model only
4.2kg
Dimensions: 17-3/16” (W) × 3-15/16” (H) × 10-3/8” (D)
[435 (W) × 100 (H) × 263 (D) mm]
For G:Gold model only
473 (W) × 100 (H) × 263 (D) mm
(excluding protrusions)
Operating temperature range:+5 to +35°C (+41 to +95°F)
Operating humidlty range: 5 to 90% (no condensation)
Discs played:
(1) DVD-VIDEO disc
5” (12cm) single-sided, single-layer
5” (12cm) single-sided, double-layer
5” (12cm) double-sided, single-layer
3” (8cm) single-sided, single-layer
3” (8cm) single-sided, double-layer
3” (8cm) double-sided, single-layer
(2) Compact disc (CD-DA, VIDEO CD)
5” (12cm) disc
3” (8cm) disc
S-video output: For U, C models
Y output level: 1Vp-p (75Ω)(NTSC)
C output level: 0.286Vp-p (75Ω)(NTSC)
Output connector: S terminal (1 system)
For B, A, G models
Y output level: 1Vp-p (75Ω)
C output level: 0.286Vp-p (75Ω) (PAL)
For B, G models
Output connector: S terminal (1 system) / AV1
For A model
Output connector: S terminal (1 system)
Video output: Output level: 1Vp-p (75Ω)
For U, C, A models
Output connector: Pin jack (2 systems)
For B,G models
Output connector: Pin jack (2 systems)/AV1/AV2
Compact video output:
For U, C models only
Y output level: 1Vp-p (75Ω), green
CBoutput level: 0.7Vp-p (75Ω), blue
CRoutput level: 0.7Vp-p (75Ω), red
Output connector: Pin jack
Audio output:
Output level: 2 Vrms (1kHz, 0dB)
Output connector: Pin jack
5.1ch mixed output: 1 system (2ch)
5.1ch discrete output: 1 system (5.1ch)
Audio signal output characteristics:
(1) Frequency response:
DVD (linear audio):
2Hz to 22kHz (48kHz sampling)
2Hz to 44kHz (96kHz sampling)
CD audio:
2Hz to 20kHz (EIAJ)
(2) S/N ratio:
CD audio: 115dB (EIAJ)
(3) Dynamic range:
DVD (linear audio): 103dB
CD audio: 100dB (EIAJ)
(4) Total harmonic distortion:
CD audio: 0.002% (EIAJ)
Digital audio output:
Optical digital output: Optical connector
Coaxial digital output: Pin jack
Pick up: Wave length: 655nm
Laser power: CLASS II
Specifications are subject to change without notice.
Weight and dimensions are approximate.
U ........ U.S.A. model G ........ European model
C ........ Canadial model B ........ United Kindom model
A ........ Australlan model
Manufactured under license from Dolby Laboratories Licens-
ing Corporation. “Dolby” and the double-D symbol are
trademarks of Dolby Laboratories Licensing Corporation.
LOCALE MANAGEMENT INFORMATION
Locale Management Information: This DVD player is designed and manufactured to respond to the Locale
Management information that is recorded on a DVD disc. If the Locale number described on the DVD disc
does not correspond to the Locale number of this DVD player, this DVD player cannot play this disc.
(See page1-3, REGION CODE.)
This product incorporates copyright protection technology that is protected by method claims of certain
U.S. patents and other intellectual property rights owned by Macrovision Corpoation and other rights
owners. Use of this copyright protection techology must be authorized by Macrovision Corporation,
and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision
Corporation. Reverse engineering or disassembly is prohibited.

DVD-S795/S705
1 - 2
TO SERVICE PERSONNEL
1. Critical Components Information.
Components having special characteristics are marked
and must be replaced with parts having specifications equal
to those originally installed.
2. Leakage Current Measurement (For 120V Models Only).
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.
•Meter impedance should be equivalent to 1500 ohm shunted
by 0.15mF.
•Leakage current must not exceed 0.5mA.
•Be sure to test for leakage with the AC plug in both polarites.
CAUTION: USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN
THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
THE COMAPCT DISC PLAYER SHOULD NOT BE ADJUSTED OR REPAIRED BY ANYONE EXCEPT PROPERLY
QUALIFIED SERVICE PERSONNEL.
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
This set employs a laser. Therefore, be sure to carefully
follow the instructions below when servicing.
1. Pick up
•Wave length : 655nm
•Laser power : CLASS
II
2. When checking the laser diode emission, keep your eyes
more than 30 cm away from the objective lens.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic
and/or plastic (where applicable) components may also contain traces of chemicals found by the
California Health and Welfare Agency (and possibly other entities) to cause cancer and/or birth defects
or other reproductive harms.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH
FOR ANY REASON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale
solder fumes or expose eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your
hands bofore handing food.

DVD-S795/S705
1 - 3
PREVENTION OF ELECTRO STATIC DISCHARGE (ESD) TO
ELECTROSTATICALLY SENSITIVE (ES) DEVICES
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically
Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor “chip”
components. The following techniques be used to help reduce the incidence of component damage caused by electro static discharge
(ESD).
1. Immediately before handling any semiconductor 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 suck 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 a 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-propelled 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 divice, touch the protective material to the chassis or
circuit assembly into which the device will be installed.
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).
IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are imporant for safety.
These parts are marked by in the schematic diagrams, exploded views and replacement parts list. It is
essential that these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire, or
other hazards. Do not modify the original design without permission of manufacturer.
REGION CODE
1
4
2
5
62
3
4
5
5
2

DVD-S795/S705
1 - 4
PRECAUTION OF LASER DIODE
CAUTION:
This unit utilizes a class Ilaser. Invisible laser radiation is emitted from the optical pickup lens when the
unit is truned on:
1. Do not look directly into the pickup lens.
2. Do not use optical instruments to look at the pickup lens.
3. Do not adjust the preset variable resistor on the optical pickup.
4. Do not disassemble the optical pickup unit.
5. If the optical pickup is replaced, use the manufactures specified replacement pickup only.
6. Use of control or adjustment or performance of procedures other than those specified herin may result in hazardous
radiation exposure.
HANDLING PRECAUTIONS FOR TRAVERSE DECK
The laser diode in the optical pickup may break down due to
potentical diference caused by static electricity of clothes or
human body.
So be careful of electrostatic break down during repair of the
optical pickup.
Handling of optical pickup
1. Do not subject the optical pickup to static electricity
as it is extremely sensitive to electrical shock.
2. To prevent the breakdown of the laser diode,
an antistatic shorting pin is inserted into the
flexible board (FPC Board).
When removing or connecting the short pin,
finish the job in as short times as possible.
3. Be careful not to apply excessive stress to the
flexible board (FPC Board).
4. Do not turn the variable resistor (Laser power adjustment).
It has already been adjusted.
Grounding for electrostatic breakdown prevention
1. Human body grounding.
Use the antistatic wrist strap to discharge the static
electricity from your body.
2. Work table grounding.
Put a conductive material (sheet) or steel on the area
where the optical pickup is placed and ground the sheet.
Caution:
The static electricity of your clothes will not be grounded
through the wrist strap. So take care not to let your clothes
touch the optical pickup.
Wrist strap
(Anti-static bracelet)
1M
Iron plate or some metals
to conduct electricity
Solder
(Magnified view)
Use a clip or other item
to ground the unit.
Flexible Cable
Pickup unit

DVD-S795/S705
1 - 5
REAR PANELS
▼ U,C models (DVD-S795/S705)
▼ B, G models
▼ G model (Gold)
▼ A model

DVD-S795/S705
1 - 6
OPTICAL PICKUP SELF-DIAGNOSIS AND REPLACEMENT PROCEDURE
The optical pickup self-diagnosis function and tilt adjustment check function have been newly added to this player. When repair-
ing, use the following procedure for effective Self-diagnosis 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 50.
Note
Press the power button to turn on the power, and check the value before the unit warms up (within three minutes).
"NO DISC" is displayed,
unit does not play smoothly, etc.
Replace the optical pickup
(Refer to Assembling and
Disassembling the Optical
Pickup, page 2-1.)
Do the optical pickup
tilt adjustment.
(Refer to Optical Pickup
Tilt Adjustment, page 2-13.)
Checkthelaserdrive
currentafterreplacement.
•Writethepresentvalueinto
theunitifitis40orless.
Check the laser drive current.
Value is
more than 50
Value is
50 or less
Initialize the player.
Press Pause and and
Open/Close buttons on unit
simultaneously.
End
(Refer to Handling After
Completing Repairs, page 1-9.)
Use the tilt
adjustment
check function.
Replace with a new optical pickup if the present
value is more than 40.
Cause:
Damage due to static electricity during replacement.
• Use the self diagnosis function below
when NO DISC is displayed or unit
doesn't read a disc, before replacing
the OPU.
• Use the optical pickup self-diagnosis function.
Method: With no disc in the player.
• Press the "DISPLAY" button on the
remote control unit while pressing the
"PAUSE" and "OPEN/CLOSE"
button on the player.
Method: With no disc in the player.
• Press the "DISPLAY" button on the
remote control unit while pressing the
"STILL/PAUSE" and "OPEN/CLOSE"
button on the player.
Writing method:
• Press the "PAUSE" button on the remote
control unit while pressing the "PAUSE" and
"OPEN/CLOSE" button on the player.
Display content
LD○○○ ○○○
Factory
preset value
Present value
• Write the present value into
the played if it is 40 or less.
▲ ▲

DVD-S795/S705
1 - 7
SELF-DIAGNOSIS FUNCTION AND SERVICE MODES
Application
Displaying the UHF display F_ _ _
Writing 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)
Use when replaceing a microprocessor, microprocessor
peripheral parts, or C. B. A.
Checkingtheprogramversion
Tiltadjustment
Checkingtheregionnumbersandbroadcastsystem
Checkingthelaserdrivecurrent
LightingConfirmationFanctionofDisplayTube
Remote control unit button Player buttons
PAUSE
＋
OPEN/CLOSE
STILL/PAUSE
SKIP/SEARCH<<
OPEN/CLOSE
Note


DISPLAY
STILL/PAUSE
Refer to Self-Diagnosis Function
(UHF Display)
,in page 1-7.
Refer to Optical Pickup Tilt
Adjustment, in page 2-13.
Check the IC6302
FLASH ROM program.
Refer to Optical Pickup Self-
Diagnosis and Replacement,
in page 1-6.
Procedure.
Refer to Initializing the DVD
Player, in page 1-9.
0
5
7
6
9

1. Service Mode Table
The service mode can be activated by pressing various button combinations on the player and remote control unit.
2. Self-Diagnosis Function (UHF Display)
This unit incorporates a convenient self-diagnosis function for use in troubleshooting.
Display method Display Diagnosis Checkpoints
Service numbers displayed
during use.
Press the "0" button on the
remote control unit while pressing
the "STILL/PAUSE" and
"OPEN/CLOSE" button on the
player.
U11
H01
H02
H03
H04
H05
H06
F0**
F1**
F2**
F3**
F4**
F5**
F6**
F7**
F8**
Focus error
Tray loading error
Spindle servo error
Traverse error
Tracking servo error
Seek error
Power supply error
Disc format error
Disc code error
Decoder LSI error
SDRAM error
IC2001,IC2511,IC5201,pickup
IC2001,IC2511 loading motor
Spindle motor, IC2501,IC2001
Stepping motor,IC2511,IC2001
IC2001,IC2501,IC5201,pickup,disc
Stepping motor,IC2511,IC2001
IC1021,IC1121,IC1151,IC6001
If this type of error occurs,refer to
Examples of Repairs Using Error
Codes, in page 1-8.
IIC BUS error
DSC
ECC error
Microprocessor error
Microprocessor error

DVD-S795/S705
1 - 8
3. Examples of Repairs Using Error Code
Refer to this section when carrying out repairs.
Error display
F0**
F103
F4FF
F500
F501
F502
F504
F505
F506
F600
F601
F602
F603
F610
F611
F612
F620
F621
F700
F701
F702
F880
F890
F891
F8A0
F893
F894
Malfunction example
Disc, IC7001
Disc, IC7001
IC6001
Optical pickup, IC2001, IC5201, IC2511, IC2501
IC2001, IC6201
IC2501, IC2511, IC2001, IC5202
IC5202, IC2001
Disc, IC2501, IC2511, IC5202, IC2001
Disc, Optical pickup, IC2001
Disc, IC7001, IC5202, IC2001
Disc, IC7001
Disc, IC5202, IC2001
Disc, IC5202, IC2001
IC7001
IC7001, IC5202, IC2001
IC7001, IC15202,IC2001
Laser drive circuit
Laser drive circuit
IC6201
IC6201
IC6201
IC6201
IC6201
IC6201
IC6201
IC6302
IC6303
4. Sales Demonstration Lock Function
This function prevents discs from being lost when the unit is used for sales demonstrations, by disabling the disc eject function.
“LOCKED” is displayed on the unit, and ordinary operation is disabled.
The sales demonstration lock function is set by simultaneously pressing the “POWER” button of DVD Player on the remote
control unit and the “STOP” button on the main unit. (“LOCKED” is displayed when the lock function is enagaged.)
4-1. Setting Method
The function can be released using the same procedure as for setting. If the remote control unit is not at hand, the function can be
released by using the same method as for player initialization (pressing the “PAUSE”, “SKIP/SEARCH<<” and “OPEN/CLOSE”
buttons simultaneously).
4-2. Release Method

DVD-S795/S705
1 - 9
SERVICE PRECAUTIONS
1. Initializing the DVD Player
Initialize the DVD player whenever you replace a microprocessor, microprocessor peripheral parts, module C.B.A or mother C.B.A.
The customer settings will return to factory preset settings when the player is initialized. Make a note of the settings and reset
them after initializing.
•When resetting, see the Initial Setting in the Operating Instructions.
1-1. Precautions
The player will be initialized (return to the factory preset condition) when you press the “PAUSE”, “SKIP/SERCH<<“ and “OPEN/CLOSE”
buttons simultaneously. When the DVD player is initialized, “All Clear” appears on screen, it also displays “INITIALIZED”.
1-2. Initialization Method
2. Handling After Completing Repairs
Use the following procedure to secure the traverse unit in the standby position.
With the power 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.
2-1. Method
Do not disconnect the power plug from the outlet with the tray still open, then close the tray manually. If you were to do so, the
traverse unit would not go to the upper (standby) position, and the player could not be transported.
2-2. Precautions
SERVICE TOOLS AND EQUIPMENT
1. Service Tools and Equipment Table
DVDT-S15 (AX07320) or DVDT-S01 (TX946080)
JZS0100 (TX946380)
JGS0099 (TX946360)
JGS0098 (TX946370) × 2
RZZ0L01 (TX946400)
JGS0091 (TX946260)
JGS0092 (TX946270)
JZS0648 (TX946410)
JGS0101 (TX946390)
SZZP1054C (TX946090)
PVCD_K06 (TX946090)
VJA0658 (MX605190)
Name Number
DVD test disc
Hex wrench
Adjustment table
Extension cables (Power supply C.B.A. to mother C.B.A.)
Extension cable (module C.B.A. to mother C.B.A.)
Screw lock
Grease
Lubricant
Grease
CD test disc
VCD test disc
Oscilloscope
Probe
AV calbe
TV monitor
General tools (Screw driver etc.)
Soldering iron (with ESD countermeasure)
Anti-static wrist strap
Conductive material (conductive sheet)
Application
General
Tilt adjustment
Inspection
Others
Confirmation
Electrical adjustment
General
Static electricity countermeasures
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 verically. 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 from being 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.
2. Storing and Handling Test Discs

DVD-S795/S705
1 - 10
•Ensure that this player and other equipment to be connected are set to the standby mode or off, and disconnect the AC cord, before commencing
connection.
•Do not block ventilation holes of any of the equipment and arrange them so that air can circulate freely.
•Read through the instructions before connecting other equipment.
•Ensure that you observe the color coding when connecting audio and video cables.
•Select the appropriate screen type at the initial setting "6 TV Aspect" according to your TV set [4:3/16:9 and Standard (Direct View TV)/CRT Projector/
LCD Projector/Projection TV].
Notes:
•If the DVD/Video CD/CD player is connected to the TV through a video cassette recorder, the picture may not be played back normally with some
DVDs.
•When playing some DVD discs, TV volume level may be lower than from some other sources, adjust the TV volume to your desired level.
•When the DVD/Video CD/CD player is connected to the TV set through the component video output connectors, the ON SCREEN informations from
the amplifier will not show on the TV screen. To show them, select the input position which is connected to the amplifier on the TV set.
Do not place the player on amplifiers or other equipment which may become hot.
Connecting to an AV amplifier containing Dolby Digital or dts (digital theater systems)
decoder
When DVDs recorded in Dolby Digital or dts are played, Dolby Digital bitstream or dts bitstream is output from the player’s OPTICAL
digital audio output connector or COAXIAL digital audio output connector. When the player is connected to a Dolby Digital decoder or
dts decoder, you can enjoy theater-quality audio in your home. [An optical digital audio cable or coaxial digital audio cable (both
optional) is required when an optional Dolby Digital decoder or dts decoder is used.]
Note:
• When connecting an AV amplifier which contains dts decoder, be sure to select "Bitstream" at "3 dts" of the initial setting "7Digital
Audio Output". ("Off" is selected at the factory preset.) If "Off" is selected, dts bitstream is not output from the digital audio output
connector.
Video cable (optional)
Direction of
signal flow
TV set (optional)
Coaxial digital
audio cable
(optional)
Optical
digital
audio cable
(optional) Video/audio
cable
(supplied)
S video
cable
(optional)
DVD/Video CD/CD player
AC cord (supplied)
To AC outlet
or
To component video input
connectors (Y, C B , C R )
COAXIAL
DVD/LD
OPTICAL
DVD/
LD DVD/ LD
AUDIO SIGNAL
R L VIDEO S-VIDEO
VIDEO SIGNAL
PCM/U DIGITAL
DTS
COAXIAL
AUDIO OUT
OPTICAL
L
SUBWOOFER
CENTER SURROUND
6CH DISCRETE
MIXED 2CH VIDEO
MAIN
S VIDEO
YCBCR
R
L
R
L
R
2
1
VIDEO OUT COMPONENT VIDEO
AC IN
AV amplifier with
Dolby Digital/dts
decoder (optional)
or
Connection
OPERATING INSTRUCTIONS

DVD-S795/S705
1 - 11
Connection
Connecting to an AV amplifier which does not contain Dolby Digital or dts (digital theater
systems) decoder
This DVD/Video CD/CD player contains a Dolby Digital decoder. This enables the playback of DVDs recorded in Dolby Digital Sur-
round or Linear PCM without the need for an optional decoder with Dolby Digital or Linear PCM processing. When the DVD/Video CD/
CD player is connected to an AV amplifier with 5.1ch input connectors, you can enjoy theater-quality audio in your home when playing
discs recorded in Dolby Digital Surround or Linear PCM.
TV set (optional)
Video/audio
cord
(supplied)
DVD/Video CD/CD player
Audio cord
(optional)
Notes:
•After connection is made, set the ì8 Speaker Settingî (such
as Yes/No and Large/Small) according to your speaker sys-
tem.
•If the surround speakers are set to ìNoî at the ì8 Speaker
Settingî (see page 40), the discs recorded in Linear PCM will
be played back only in 2 channels even when the center
speaker is connected as well as the front speakers.
•DVDs recorded in Linear PCM/96 kHz sampling in which
ìCenter Speakerî is contained will also be played back only
in 2 channels.
•If the player is connected to the AV amplifier as shown
above, audio recorded in dts will not be output. To enjoy dts
sound, it is necessary to connect the player.
Direction of
signal flow
Video cable
(optional)
To component video input
connectors (Y, C B , C R )
PCM/U DIGITAL
DTS
COAXIAL
AUDIO OUT
OPTICAL
L
SUBWOOFER
CENTER SURROUND
6CH DISCRETE
MIXED 2CH VIDEO
MAIN
S VIDEO
YC B C R
R
L
R
L
R
2
1
VIDEO OUT
COMPONENT VIDEO
AC IN
CENTER
SUB
WOOFER
MAIN SURROUND
AUDIO SIGNAL
DVD/LD
L
R
L
R
VIDEO SIGNAL
S-VIDEO
6CH DISCRETE INPUT DVD/LD
AV amplifier without
Dolby Digital/dts
decoder (optional)
S video cord
(optional)
In the case of the AV amplifier without
5.1ch input connectors
In the case of the AV amplifier
with 5.1ch input connectors
or
OPERATING INSTRUCTIONS

DVD-S795/S705
1 - 12
A B C
General information about On-
Screen Menu Icons
This player features On-Screen Menu Icons providing various
functions. A "banner" will be displayed on the TV monitor by
pressing the ON SCREEN button on the remote control.
Operating the cursor buttons/SELECT button on the remote
control will show disc information (title/chapter/track number,
elapsed playing time, audio/subtitle language, and angle) and
player information (repeat play, play mode, marker, etc.).
Some icons allow the settings to be changed.
Common procedures
1 Press ON SCREEN during play or in the
stop mode.
Each time this button is pressed, the TV monitor changes
as shown below.
→On-Screen Menu Icons are not displayed
|↓
||On-Screen Menu Icons for selecting disc information
|↓
|On-Screen Menu Icons for selecting player information
|↓
Shuttle screen
•Some functions cannot be accessed from the stop
mode.
2 Press the cursor buttons (
▲
▲
, ) to select
the preferred item.
•The currently selected item is indicated by the yellow
frame on the On-Screen Menu Icons.
3 Press the cursor buttons ( ▲ , ▼ ) to select
the preferred setting.
•For some functions, the setting will be registered imme-
diately; for others, SELECT or PLAY must be pressed.
•When numbers are displayed (e.g. title No.), the numeric
buttons are also effective for setting instead of the cursor
buttons (
▲ , ▼ ). When numbers are entered by the nu-
meric buttons, press SELECT to register the setting.
Press RETURN or CLEAR to clear the On-Screen Menu
Icons.
Examples of On-Screen Menu Icons
(See , and for detailed illustration.)
(The screens may differ depending on the disc contents.)
•DVD ( ) •Video CD ( ) •CD ( )
For your reference:
•Depending on the type of DVD software and a TV with auto-
matic picture zoom function enabled, the On-Screen Menu
Icons may not be displayed or only partially displayed on the
TV screen.
In this case, change the position of the On-Screen Menu
Icons in "4 On-Screen Messages" of the initial settings.
•The color (blue, violet or green) of the On-Screen Menu
Icons can be changed.
A
B
C
1 1:56:37 1
LPCM
ENG 148k 16 b
OFF
ENG
ON
1
13:37
L R OFF
PBC
PRG
13:37
0N dB
FdB
PRG 0
dB
µ 100
p 100
µ 40
p 40
µ 50
p 50
N0
OFF
OFF
POWER
@ STOP
TITLE
SUBTITLE
MARKER
ANGLEAUDIO
ON SCREEN RETURN
MENU
SELECT
H SKIP IF G
D PLAY g STILL/PAUSE
OPEN/CLOSE
*/ I
PLAY MODE
REPEAT
A-B CLEAR
DVD
SET UP
SLOW/
SEARCH
D PLAY
CLEAR
SELECT
RETURN
ON SCREEN
OFF
A B C
OPERATING INSTRUCTIONS

DVD-S795/S705
1 - 13
1 1:56:37
1 ENG 48k 16b
LPCM
1 1
1 ENG
ON
Detailed descriptions of each On-Screen Menu Icon
Screen for disc information (For DVD)
Chapter No. Change the chapter No. by using the cursor buttons (
▲ , ▼ ) or the numeric buttons and
press SELECT.
Audio soundtrack
language No.
Audio soundtrack
language
LPCM
$
dts
Vocal
Vocal
Change the No. by using the
cursor buttons ( ▲ , ▼ ) or the
numeric buttons.
ENG: English POR: Portuguese
FRA: French RUS Russian
DEU: German JPN: Japanese
ITA: Italian CHI: Chinese
ESP: Spanish KOR: Korean
NLD: Dutch MAL: Malay
SVE: Swedish VIE: Vietnamese
NOR: Norwegian THA: Thai
DAN: Danish U : Others
Linear PCM
("k" stands for kHz
and "b" stands for bit.)
Dolby Digital
dts
DVD Karaoke (Solo)
DVD Karaoke (Duet)
16b
20b
24b
Audio
attribute
96k
or
48k
1—5.1ch
1—5.1ch
--- (OFF)
ON
--- (OFF)
V1oV2
V1
V2
Change the No. by using the
cursor buttons ( ▲ , ▼ ) or the
numeric buttons.
ENG: English POR: Portuguese
FRA: French RUS Russian
DEU: German JPN: Japanese
ITA: Italian CHI: Chinese
ESP: Spanish KOR: Korean
NLD: Dutch MAL: Malay
SVE: Swedish VIE: Vietnamese
NOR: Norwegian THA: Thai
DAN: Danish U : Others
Select "ON" or "OFF" by using
the cursor buttons ( ▲ , ▼ ).
OFF Subtitle is cleared.
ON Subtitle is displayed.
Subtitle language No.
Subtitle language
Subtitle on/off
For your reference:
•" △ ▽ " around the icon means that the item can be changed using the cursor buttons ( ▲ , ▼ ).
1
Title No. Change the title No. by using the cursor buttons ( ▲ , ▼ ) or the numeric buttons and press SELECT.
Angle No.Change the No. by using the cursor buttons (
▲ , ▼ ) or the
numeric buttons.
Elapsed playing time
(hour: minute: second)
Change the time by using the numeric buttons and press SELECT.
It can be used to find a specific scene quickly.
Example: To specify "1 hour 56 min. 37 sec.", enter "15637".
(This function does not work with some discs.)
OPERATING INSTRUCTIONS

DVD-S795/S705
1 - 14
1 3:37 L R
OFF
PBC
Playback control
(Video CD only)
(See page 15.)
OFF Menu play is not ON.
ON Menu play is ON.
Detailed descriptions of each On-Screen Menu Icon
Screen for disc information (For Video CD/CD)
Track No. Change the track No. by using the cursor buttons
( ▲ , ▼ ) or the numeric buttons and press SELECT.
Elapsed playing time
(minute: second)
During CD play, display is changed by using the cursor
buttons (
▲ , ▼ ).
Elapsed playing time→
Remaining time of the track
↑−
Remaining time of the disc
Audio mode
(Video CD only)
Change the mode by using the cursor buttons ( ▲ , ▼ ).
LR
L
R
Left channel sound is output from the speaker (L),
and right channel sound from the speaker (R).
Left channel sound only is output.
Right channel sound only is output.
Note:
•Track No. and the elapsed playing time are not displayed during menu play of Video CDs with playback control.
•It is not possible to turn playback control ON or OFF using the On-Screen Menu Icons.
For your reference:
•"
△ ▽ " around the icon means that the item can be changed using the cursor buttons ( ▲ , ▼ ).
1
OPERATING INSTRUCTIONS

DVD-S795/S705
1 - 15
OFF 0
dB
NOFF OFF
Screen for player information
Notes:
•Repeat play and marker functions do not work with an interactive DVD or during menu play of a Video CD with playback control.
•A-B repeat play does not work with an interactive DVD.
•It is not possible to change the play mode using the On-Screen Menu Icons.
For your reference:
•The master volume can be set and stored separately for DVD, Video CD and CD.
A-B repeat play Press SELECT during play to store location A and press SELECT again to store location B and to start
repeat play between the specified two locations. Press SELECT again to return to normal play.
Marker
Press SELECT during play
and press SELECT again
at the preferred point to
store a marker. (Marker
no. is displayed instead of
"＊".)
•To recall a marker, select
the preferred marker no.
by using the cursor
buttons (
▲
▲
, ) and enter
the selection using the
cursor button ( ▲ ).
•To clear a marker, select
the preferred marker no.
using the cursor buttons
( , ) and press
CLEAR.
Adjust the master volume by
using the cursor buttons
( ▲ , ▼ ).
0 to –127 dB or –
Master
volume
Contrast (+ 7 to –7) Equalizer (+ 1/0/–1) Brightness (0 to 15)
Repeat play
Select the preferred mode during play by
using the cursor buttons ( ▲ , ▼ ).
OFF
C
T
OFF
T
A
Normal play
Chapter repeat play
Title repeat play
Normal play
Track repeat play
Disc repeat play
DVD
Video CD/
CD
0000
_ _ _
•DVD
Cinema Dialogue
•Video CD/CD
Play mode
OFF
ON
PRG
RND
---
Normal
volume
Louder
volume
Program
play
Random
play
Normal
play
Select the
preferred mode
during play by
using the cursor
buttons ( ▲ , ▼ ).
OFF
Cinema
Image
(DVD/Video
CD only)
Select the preferred mode by using the cursor buttons ( ▲ , ▼ ) and press SELECT.
N Normal mode F Fine mode
S Soft mode C Cinema mode
User selection mode (Adjust the picture quality as you like.)
When U is selected and SELECT is pressed, the On-Screen Menu Icon as shown below appears.
Select the preferred item by using the cursor buttons ( , ) and select the preferred value by using the
cursor buttons ( ▲ , ▼ ).
U
Color hue (+ 7 to –7)
▲
▲
▲
▲
OPERATING INSTRUCTIONS

DVD-S795/S705
1 - 16
µ 100
p 100
For your reference:
•Each time the cursor button (
▲
▲
, ) is pressed, the speed of rapid reverse/advance and slow-motion play increases up to 5 steps.
•The figures appearing at both ends of the shuttle screen stand for the maximum speeds of rapid reverse and rapid advance.
(DVD: + 100/–100, Video CD: + 40/–40, CD: + 50/–50)
Detailed descriptions of each On-Screen Menu Icon
Shuttle screen
Still/Pause Press the cursor button ( ▲ ).
Slow-motion play
(Backward)
Press the cursor button (
▲
).
(DVD only) Slow-motion play (Forward)
Press the cursor button ( ).
(DVD/Video CD only)
Rapid advance Press the cursor button ( ).Rapid reverse Press the cursor button ( ).
Play Press the cursor button ( ▼ ).
▲
▲▲
OPERATING INSTRUCTIONS

DVD-S795/S705
2 - 1
SECTION2
ASSEMBLING AND DISASSEMBLING THE CASING AND CHECKING C.B.A.s
1. Disassembly Procedure
When servicing the unit, use the following procedure to disassemble the casing and inside parts for internal inspection.
Tray
Front panel
Rear panel
Power Supply
C.B.A. V. Comp C.B.A. (U, C MODELS)
Scart C.B.A.
(B, G MODELS)
Mechanism unit
Mother C.B.A.
Power SW C.B.A.
Module C.B.A.
Top cover

DVD-S795/S705
2 - 2
2. Casing Parts and C.B.A. Positions
3. Service Positions
Note
To inspect the loading base unit, position the left side upward (as viewed from the front).
Module C.B.A.
Power supply C.B.A.
TX946370
TX946370
TX946360
Mother C.B.A.