Harman Kardon DVD 25 User manual

harman kardon
Models DVD 25 DVD101DVD 25 DVD101
DVD/CD/CD-R/CD-RW/VCD MP3 Player
Service Manual
- Contents -
PRODUCT SAFETY SERVICE GUIDELINES…2
SERVICE PRECAUTIONS………………….……3
SPECIFICATIONS…………………………..…….4
FEATURES………………………………………...5
FRONT PANEL CONTROLS………….………….6
INFORMATION DISPLAY…………….…….…….7
REMOTE CONTROL………………………..…….8
REAR PANEL CONNECTIONS……………..….10
INSTALLATION/CONNECTIONS……….……….11
TEST SCREEN……………………….……….….15
BASIC TROUBLESHOOTING GUIDE/RESET.……..….16
(DVD25) BULLETIN HK2003-06…………….…17
(DVD25) TECH TIP HKTT2004-02…………….20
OVERALL EXPLODED VIEW………………..…21
BLOCK DIAGRAM.……………..……………..…22
(DVD25)MECHANICAL PARTS LIST………….23
(DVD25) ELECTRICAL PARTS LIST……….….25
(DVD101) MECHANICAL PARTS LIST………..31
(DVD101) ELECTRICAL PARTS LIST…….…..33
PCB DRAWINGS…………………………………38
SCHEMATICS…………………………………….43
harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797 Rev0 8/2004
www.electronicsrepair.net

CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY,
NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC-
TURER’S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY
VOID THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANY
RESULTING PROPERTY DAMAGE OR USER INJURY.
SERVICE WORK SHOULD BE PERFORMED ONLY AFTER YOU ARE
THOROUGHLY FAMILIAR WITH ALL OF THE FOLLOWING SAFETY
CHECKS AND SERVICING GUIDELINES. TO DO OTHERWISE,
INCREASES THE RISK OF POTENTIAL HAZARDS AND INJURY TO THE
USER.
WHILE SERVICING, USE AN ISOLATION TRANSFORMER FOR PROTEC-
TION FROM A.C. LINE SHOCK.
SAFETY CHECKS
AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRECTED. A
CHECK SHOULD BE MADE OF THE FOLLOWING.
SUBJECT : FIRE & SHOCK HAZARD
1. BE SURE THAT ALL COMPONENTS ARE POSITIONED IN SUCH A WAY
AS TO AVOID POSSIBILITY OF ADJACENT COMPONENT SHORTS.
THIS IS ESPECIALLY IMPORTANT ON THOSE MODULES WHICH ARE
TRANSPORTED TO AND FROM THE REPAIR SHOP.
2. NEVER RELEASE A REPAIR UNLESS ALL PROTECTIVE DEVICES
SUCH AS INSULATORS, BARRIERS, COVERS, SHIELDS, STRAIN
RELIEFS, POWER SUPPLY CORDS, AND OTHER HARDWARE HAVE
BEEN REINSTALLED PER ORIGINAL DESIGN. BE SURE THAT THE
SAFETY PURPOSE OF THE POLARIZED LINE PLUG HAS NOT BEEN
DEFEATED.
3. SOLDERING MUST BE INSPECTED TO DISCOVER POSSIBLE COLD
SOLDER JOINTS, SOLDER SPLASHES OR SHARP SOLDER POINTS.
BE CERTAIN TO REMOVE ALL LOOSE FOREIGN PARTICLES.
4. CHECK FOR PHYSICAL EVIDENCE OF DAMAGE OR DETERIORATION
TO PARTS AND COMPONENTS, FOR FRAYED LEADS, DAMAGED
INSULATION (INCLUDING A.C. CORD), AND REPLACE IF NECESSARY.
FOLLOW ORIGINAL LAYOUT, LEAD LENGTH AND DRESS.
5. NO LEAD OR COMPONENT SHOULD TOUCH A RECIVING TUBE OR
A RESISTOR RATED AT 1 WATT OR MORE. LEAD TENSION AROUND
PROTRUDING METAL SURFACES MUST BE AVOIDED.
6. ALL CRITICAL COMPONENTS SUCH AS FUSES, FLAMEPROOF
RESISTORS, CAPACITORS, ETC. MUST BE REPLACED WITH EXACT
FACTORY TYPES, DO NOT USE REPLACEMENT COMPONENTS
OTHER THAN THOSE SPECIFIED OR MAKE UNRECOMMENDED CIR-
CUIT MODIFICATIONS.
7. AFTER RE-ASSEMBLY OF THE SET ALWAYS PERFORM AN A.C.
LEAKAGE TEST ON ALL EXPOSED METALLIC PARTS OF THE CABI-
NET, (THE CHANNEL SELECTOR KNOB, ANTENNA TERMINALS. HAN-
DLE AND SCREWS) TO BE SURE THE SET IS SAFE TO OPERATE
WITHOUT DANGER OF ELECTRICAL SHOCK. DO NOT USE A LINE
ISOLATION TRANSFORMER DURING THIS TEST USE AN A.C. VOLT-
METER, HAVING 5000 OHMS PER VOLT OR MORE SENSITIVITY, IN
THE FOLLOWING MANNER; CONNECT A 1500 OHM 10 WATT RESIS-
TOR, PARALLELED BY A .15 MFD. 150.V A.C TYPE CAPACITOR
BETWEEN A KNOWN GOOD EARTH GROUND (WATER PIPE, CON-
DUIT, ETC.) AND THE EXPOSED METALLIC PARTS, ONE AT A TIME.
MEASURE THE A.C. VOLTAGE ACROSS THE COMBINATION OF 1500
OHM RESISTOR AND .15 MFD CAPACITOR. REVERSE THE A.C. PLUG
AND REPEAT A.C. VOLTAGE MEASUREMENTS FOR EACH EXPOSED
METALLIC PART. VOLTAGE MEASURED MUST NOT EXCEED 75
VOLTS R.M.S. THIS CORRESPONDS TO 0.5 MILLIAMP A.C ANY
VALUE EXCEEDING THIS LIMIT CONSTITUTES A POTENTIAL SHOCK
HAZARD AND MUST BE CORRECTED IMMEDIATELY.
SUBJECT: 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 MAG-
NITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIAN-
GLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO
THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN
SERVICE LITERATURE.
SUBJECT : X-RADIATION
1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PER-
SONNEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTEN-
TIAL SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PIC-
TURE TUBE. HOWEVER, THIS TUBE DOES NOT EMIT X-RAYS WHEN
THE HIGH VOLTAGE IS AT THE FACTORY SPECIFIED LEVEL. THE
PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC. OPERA-
TION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PIC-
TURE TUBE OR HIGH VOLTAGE SUPPLY AND, UNDER CERTAIN CIR-
CUMSTANCES, MAY PRODUCE RADIATION IN EXCESS OF DESIR-
ABLE LEVELS.
2. ONLY FACTORY SPECIFIED C.R.T. ANODE CONNECTORS MUST BE
USED. DEGAUSSING SHIELDS ALSO SERVE AS AN X-RAY SHIELD IN
COLOR SETS, ALWAYS RE-INSTALL THEM.
3. IT IS ESSNTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN
ACCURATE AND RELIABLE HIGH VOLTAGE METER. THE CALIBRA-
TION OF THE METER SHOULD BE CHECKED PERIODICALLY
AGAINST A REFERENCE STANDARD, SUCH AS THE ONE AVAILABLE
AT YOUR DISTRIBUTOR.
4. WHEN THE HIGH VOLTAGE CIRCUITRY IS OPERATING PROPERLY
THERE IS NO POSSIBILITY OF AN X-RADIATION PROBLEM. EVERY
TIME A COLOR CHASSIS IS SERVICED. THE BRIGHTNESS SHOULD
BE RUN UP AND DOWN WHILE MONITORING THE HIGH VOLTAGE
WITH A METER TO BE CERTAIN THAT THE HIGH VOLTAGE DOES
NOT EXCEED THE SPECIFIED VALUE AND THAT IT IS REGULATING
CORRECTLY. WE SUGGEST THAT YOU AND YOUR SERVICE ORGA-
NIZATION REVIEW TEST PROCEDURES SO THAT VOLTAGE REGU-
LATION IS ALWAYS CHECKED AS A STANDARD SERVICING PROCE-
DURE AND THAT THE HIGH VOLTAGE READING BE RECORDED ON
EACH CUSTOMER’S INVOICE.
5. WHEN TROUBLESHOOTING AND MAKING TEST MEASUREMENTS IN
A PRODUCT WITH A PROBLEM OF EXCESSIVE HIGH VOLTAGE,
AVOID BEING UNNECESSARILY CLOSE TO THE PICTURE TUBE AND
THE HIGH VOLTAGE SUPPLY. DO NOT OPERATE THE PRODUCT
LONGER THAN IT IS NECESSARY TO LOCATE THE CAUSE OF EXCES-
SIVE VOLTAGE.
6. REFER TO HV. B+ AND SHUTDOWN ADJUSTMENT PROCEDURES
DESCRIBED IN THE APPROPRIATE SCHEMATIC AND DIAGRAMS
(WHERE USED).
SUBJECT: IMPLOSION
1. ALL DIRECT VIEWED PICTURE TUBES ARE EQUIPPED WITH AN INTE-
GRAL IMPLOSION PROTECTION SYSTEM, BUT CARE SHOULD BE
TAKEN TO AVOID DAMAGE DURING INSTALLATION, AVOID
SCRATCHING THE TUBE. IF SCRATCHED REPLACE IT.
2. USE ONLY RECOMMENDED FACTORY REPLACEMENT TUBES.
SUBJECT : TIPS ON PROPER INSTALLATION
1. NEVER INSTALL ANY PRODUCT IN A CLOSED-IN RECESS, CUBBY-
HOLE OR CLOSELY FITTING SHELF SPACE, OVER OR CLOSE TO
HEAT DUCT, OR IN THE PATH OF HEATED AIR FLOW.
2. AVOID CONDITIONS OF HIGH HUMIDITY SUCH AS: OUTDOOR PATIO
INSTALLATIONS WHERE DEW IS A FACTOR, NEAR STEAM RADIA-
TORS WHERE STEAM LEAKAGE IS A FACTOR, ETC.
3. AVOID PLACEMENT WHERE DRAPERIES MAY OBSTRUCT REAR
VENTING. THE CUSTOMER SHOULD ALSO AVOID THE USE OF DEC-
ORATIVE SCARVES OR OTHER COVERINGS WHICH MIGHT
OBSTRUCT VENTILATION.
4. WALL AND SHELF MOUNTED INSTALLATIONS USING A COMMER-
CIAL MOUNTING KIT, MUST FOLLOW THE FACTORY APPROVED
MOUNTING INSTRUCTIONS. A PRODUCT MOUNTED TO A SHELF OR
PLATFORM MUST RETAIN ITS ORIGINAL FEET (OR THE EQUIVALENT
THICKNESS IN SPACERS) TO PROVIDE ADEQUATE AIR FLOW
ACROSS THE BOTTOM. BOLTS OR SCREWS USED FOR FASTENERS
MUST NOT TOUCH ANY PARTS OR WIRING. PERFORM LEAKAGE
TEST ON CUSTOMIZED INSTALLATIONS.
5. CAUTION CUSTOMERS AGAINST THE MOUNTING OF A PRODUCT ON
SLOPING SHELF OR A TILTED POSITION, UNLESS THE PRODUCT IS
PROPERLY SECURED.
6. A PRODUCT ON A ROLL-ABOUT CART SHOULD BE STABLE ON ITS
MOUNTING TO THE CART. CAUTION THE CUSTOMER ON THE HAZ-
ARDS OF TRYING TO ROLL A CART WITH SMALL CASTERS ACROSS
THRESHOLDS OR DEEP PILE CARPETS.
7. CAUTION CUSTOMERS AGAINST THE USE OF A CART OR STAND
WHICH HAS NOT BEEN LISTED BY UNDERWRITERS LABORATORIES,
INC. FOR USE WITH THEIR SPECIFIC MODEL OF TELEVISION
RECEIVER OR GENERICALLY APPROVED FOR USE WITH T.V.’S OF
THE SAME OR LARGER SCREEN SIZE.
8. CAUTION CUSTOMERS AGAINST THE USE OF EXTENSION CORDS.
EXPLAIN THAT A FOREST OF EXTENSIONS SPROUTING FROM A SIN-
GLE OUTLET CAN LEAD TO DISASTROUS CONSEQUENCES TO
HOME AND FAMILY.
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS
A.C. VOLTMETER
GOOD EARTH GROUND
SUCH AS THE WATER
PIPE. CONDUIT. ETC
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART
2
DVD25/DVD101 harman/kardon

3
SERVICING PRECAUTIONS
CAUTION : Before servicing the DVD covered by this service
data and its supplements and ADDENDUMS, read and fol-
low the SAFETY PRECAUTIONS. NOTE : if unforeseen cir-
cumstances create conflict between the following servicing
precautions and any of the safety precautions in this publi-
cations, always follow the safety precautions.
Remember Safety First:
General Servicing Precautions
1. Always unplug the DVD AC power cord from the AC
power source before:
(1) Removing or reinstalling any component, circuit board,
module, or any other assembly.
(2) Disconnection or reconnecting any internal electrical
plug or other electrical connection.
(3) Connecting a test substitute in parallel with an elec-
trolytic capacitor.
Caution : A wrong part substitution or incorrect
polarity installation of electrolytic capacitors may result
in an explosion hazard.
2. Do not spray chemicals on or near this DVD or any of
its assemblies.
3. Unless specified otherwise in this service data, clean
electrical contacts by applying an appropriate contact
cleaning solution to the contacts with a pipe cleaner,
cotton-tipped swab, or comparable soft applicator.
Unless specified otherwise in this service data, lubrication
of contacts is not required.
4. Do not defeat any plug/socket B+ voltage interlocks with
whitch instruments covered by this service manual might
be equipped.
5. Do not apply AC power to this DVD and/or any of its
electrical assemblies unless all solid-state device heat
sinks are cerrectly installed.
6. Always connect test instrument ground lead to the
appropriate ground before connection the test instrument
positive lead. Always remove the test instrument ground
lead last.
Insulation Checking Procedure
Disconnect the attachment plug from the AC outlet and turn
the power on. Connect an insulation resistance meter(500V)
to the blades of the attachment plug. The insulation resis-
tance between each blade of the attachment plug and acces-
sible conductive parts (Note 1) should be more than 1M-
ohm.
Note 1 : Accessible Conductive Parts including Metal pan-
els, Input terminals, Earphone jacks, etc.
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 should be used to help reduce the
incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor compo-
nent or semiconductor-equipped assembly, drain off any
electrostatic charge on your body by touching a known
earth ground. Alternatively, obtain and wear a commer-
cially 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 ES
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 ES devices.
4. Use only an anti-static solder removal device. Some
solder removal devices not classified a “anti-static”can
generate electrical charges sufficient to damage ES
devices.
5. Do not use freon-propelled chemicals. These can
generate electrical charge sufficient to damage ES
devices.
6. Do not remove a replacement ES device from its protec
tive package until immediately before you are ready to
install it. (Most replacement ES devices are packaged with
leads electrically shorted together by conductive foam,
aluminum 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.
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. (Normally harmless motion such
as the brushing together of your clothes fabric or the lifting
of your foot from a carpeted floor can generate static elec-
tricity sufficient to damage an ES device.)
SHIPPING PRECAUTION:
If power is removed from the unit before the “NO DISC” message, then the carousel has not reached the
home position, and movement of the laser assembly during shipping can cause the mechanism to jam.
Before the unit is shipped, the mechanism should be set to its home position performing following steps:
Power on unit. Wait until unit dis
p
la
y
s “NO DISC”. Power unit off.
DVD25/DVD101 harman/kardon

TECHNICAL SPECIFICATIONS
Technical Specifications
Applicable Disc: Disc formats: 5 inch (12 cm) or 3 inch (8 cm) DVD-Movie, Standard conforming DVD-R and DVD-RW,
VCD, CD-i, CD, CD-R, MP3 or CD-RW discs,
Regio code: DVD Movie disc with Code 2 or 0 only.
DVD-Layers: Single Side/Single Layer, Single Side/Dual Layer, Dual Side/Dual Layer,
Audio formats: Linear PCM, MPEG, Dolby Digital or DTS Audio Discs
Video Signal System: PAL /NTSC
Composite Video Output: 1 V p-p/75 Ohms, sync negative polarity
S Video Output: Y/Luminance: 1 V p-p/75 Ohms, sync negative polarity
C/Chrominance: 0.286 V p-p
Component Video Output: Y: 1Vp-p/75 Ohms, sync negative polarity
Cr: 0.7Vp-p/75 Ohms
Cb: 0.7Vp-p/75 Ohms
Analog Audio Output: 2 Vrms max
Frequency Response: DVD (Linear PCM): 2 Hz - 22 kHz +0/-0.5 dB (48 kHz sampling)
2 Hz - 44 kHz +0/-0.5 dB (96 kHz sampling)
CD: 2 Hz - 20 kHz +0/-0.5 dB
Signal/Noise Ratio (SNR): 113 dB (A-weighted)
Dynamic Range: DVD: 100 dB (18 Bit) / 105 dB (20 Bit)
CD/DVD: 96 dB (16 Bit)
THD/1kHz: DVD/CD: 0.0025 %
Wow & Flutter: Below Measurable Limits
AC Power: 110 - 240 V/ 50 - 60 Hz
Power Consumption: 12 Watts (On)/20 Watts (Max)
Dimensions (WxHxD): 440 x 87 x 305 mm
Weight: 7 Kg
Depth measurement includes knobs and connectors.
Height measurement includes feet and chassis.
All specifications subject to change without notice.
Harman Kardon and Power for the digital revolution are trademarks of Harman Kardon, Inc.
Manufactured under license from Dolby Laboratories. Dolby, AC-3, ProLogic and the double-D symbol are trademarks of Dolby Laboratories. Confidential.
Unpublished Work. © 1992-1997 Dolby Laboratories, Inc. All rights reserved.
DTS is a trade mark of Digital Theater Systems, Inc.
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 Corporation and other rights owners. Use of this copyright protection technology 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 diassembly is
prohibited.
4
DVD25/DVD101 harman/kardon

FEATURES
Features
High quality video
• Advanced sophisticated 10-bit MPEG-2 video
decoding circuits.
• Direct RGB output via SCART (selectable) for
optimum video performance. SCART connector
also configurable for Composite Video output.
• Test screen videos available for testing video
performance and setup.
• Pure PAL with NTSC disc due to true
NTSC/PAL conversion.
• Dual-layer compatibility for extended play
DVD.
• Progressive Scan component video ouputs
(NTSC only)
High quality digital audio
• By connecting a DTS (Digital Theater Systems)
or a Dolby Digital decoder, you can enjoy high
quality 5.1 digital surround sound from DTS or
Dolby Digital discs.
• With linear PCM audio at 16-24 bits and 44-
96 kHz (also on digital output, see table page
14), audio quality exceeding that of CD
becomes possible.
• Optical and coaxial digital audio output.
Many convenient features
• On-Screen Menu lcons for disc information or
player information and access to many major
functions of this unit.
• Subtitles may be displayed in one of numerous
languages*.
• The multi-angle function allows you to choose
the viewing angle of scenes which were shot
from a number of different angles (Limited to
DVD’s recorded with multiple camera angles.)
• Multiple options for dialog language and
soundtrack selection (limited to DVD’s record-
ed with multiple dialog languages or sound-
tracks).
• Programming of up to 9 scenes in memory
(markers).
• Parental lock settings to prevent play of discs
unsuitable for some audiences [DVD only].
• Intuitive menu operating system.
• 2x/4x Zoom during play and pause.
• Backlit, ergonomically designed remote
control.
• Future software upgrades accessible via
Internet.
* The number of languages recorded depends
on the software.
Compatible with CD
as well as DVD
• The DVD 25/101 will play any conventional Audio
CD or recordable (CD-R) or erasable CD
(CD-RW), bearing the logos shown here, MP3
or any VCD or DVD with the region code 0 or 2.
Disc formats supported
by this player
The unit can play discs bearing any of the
following logos:
DVD CD
3"(8 cm) disc 3"(8 cm) disc
5"(12 cm) disc 5"(12 cm) disc
CD-RW CD-R VCD
5"(12 cm) disc 3"(8 cm) disc 5"(12 cm) disc
5"(12 cm) disc 5"(12 cm) disc
NOTE: Due to differences in the format of
certain discs, it is possible that some discs may
include a mix of features that are not compatible
with the DVD 25/101. Similarly, although it's
is capable of a wide range of features, not all
discs include every capability of the DVD system.
For example, although the DVD 25/101 is compatible
with multi-angle discs, that feature is only possi-
ble when the disc is specially encoded for multi-
ple-angle play. In addition, the DVD 25/101 is capa-
ble of playing back both Dolby Digital and DTS
soundtracks, but the number and types of tracks
available will vary from disc to disc. To make cer-
tain that a specific feature or soundtrack option
is available, please check the options noted on
the disc jacket.
■ Playback capability for CD-R and CD-RW
discs may vary due to variations in the quality
of the disc and the recorder used to create
the disc.
Upgradeability via Internet
The ”firmware” controlling the functionality of
the h/k DVD25/101 is fully upgradeable.
In the event of future improvements to its
operations and features, it will be possible to
download firmware upgrades from
www.harmankardon.com. All you have to do is
create a CD-R with the data and insert it in the
DVD for an automatic upgrade.
Packing List
1 h/k DVD25 or DVD101 DVD Player
1 Remote control
2 AA batteries
1 A/V cable for stereo analog audio and
composite video
1 S-Video cable
1 remote extension cable
1 owner's manual
ReWritable
5
DVD25/DVD101 harman/kardon