SERVICE MANUAL
Product Type: DVD VIDEO PLAYER Chassis: DP9 (MD)
Manual Series: ZDA-311 Manual Part #: 3829RHN004T Model Line: D
Product Year: 2005
Model Series:
ZDA-311
CONTENTS |
|
Summary .................................................... |
1 |
Cabinet & Main Chassis ............................. |
2 |
Electrical .................................................... |
3 |
Parts List .................................................... |
4 |
Published March 2005
by Technical Publications
Zenith Electronics Corporation
201 James Record Road
Huntsville, Alabama 35824-1513
Copyright © 2005 by Zenith Electronics Corporation
Printed in U.S.A
|
CONTENTS |
SECTION 1 |
. . . .SUMMARY |
SECTION 2 |
. . . .CABINET & MAIN CHASSIS |
SECTION 3 |
. . . .ELECTRICAL |
SECTION 4 |
. . . .REPLACEMENT PARTS LIST |
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SECTION 1
SUMMARY
CONTENTS
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ............. |
1-3 |
SERVICING PRECAUTIONS .................................................................................................. |
1-4 |
• General Servicing Precautions |
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• Insulation Checking Prodedure |
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• Electrostatically Sensitive Devices |
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SPECIFICATIONS ...................................................................................................................... |
1-5 |
1-2
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS
CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY, NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFACTURER’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 PROTECTION FROM A.C. LINE SHOCK.
SAFETY CHECKS
AFTER THE ORIGINAL SERVICE PROBLEM HAS BEEN CORRCTED. 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 PROTRUNING 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 CIRCUIT MODIFICATIONS.
7.AFTER RE-ASSEMBLY OF THE SET ALWAYS PERFORM AN A.C. LEAKAGE TEST ON ALL EXPOSED METALLIC PARTS OF THE CABINET, (THE CHANNEL SELECTOR KNOB, ANTENNA TERMINALS. HANDLE 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. VOLTMETER, HAVING 5000 OHMS PER VOLT OR MORE SENSITIVITY, IN THE FOLLOWING MANNER; CONNECT A 1500 OHM 10 WATT RESISTOR, PARALLELED BY A .15 MFD. 150.V A.C TYPE CAPACITOR BETWEEN A KNOWN GOOD EARTH GROUND (WATER PIPE, CONDUIT, 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.
A.C. VOLTMETER
GOOD EARTH GROUND |
PLACE THIS PROBE |
SUCH AS THE WATER |
ON EACH EXPOSED |
PIPE. CONDUIT. ETC |
METAL PART |
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 MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE.
SUBJECT : X-RADIATION
1.BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PERSONNEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTENTIAL SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PICTURE 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. OPERATION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PICTURE TUBE OR HIGH VOLTAGE SUPPLY AND, UNDER CERTAIN CIRCUMSTANCES, MAY PRODUCE RADIATION IN EXCESS OF DESIRABLE LEVELS.
2.ONLY FACTORY SPECIFIED C.R.T. ANODE CONNECTORS MUST BE USED. DEGAUSSING SHIELDS ALSO SERVE AS 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 ORGANIZATION REVIEW TEST PROCEDURES SO THAT VOLTAGE REGULATION IS ALWAYS CHECKED AS A STANDARD SERVICING PROCEDURE. AND THAT THE HIGH VOLTAGE READING BE RECORDER 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 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, CUBBYHOLE 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 RADIATORS WHERE STEAM LEAKAGE IS A FACTOR, ETC.
3.AVOID PALCEMENT WHERE DRAPERIES MAY OBSTRUCT REAR VENTING. THE CUSTOMER SHOULD ALSO AVOID THE USE OF DECORATIVE SCARVES OR OTHER COVERINGS WHICH MIGHT OBSTRUCT VENTILATION.
4.WALL AND SHELF MOUNTED INSTALLATIONS USING A COMMERCIAL 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 HAZARDS 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 SINGLE OUTLET CAN LEAD TO DISASTROUS CONSEQUENCES TO HOME AND FAMILY.
1-3
SERVICING PRECAUTIONS
CAUTION : Before servicing the DVD covered by this service data and its supplements and addends, read and follow the
SAFETY PRECAUTIONS. NOTE : if unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions in this publications, always follow the safety precautions.
Remembers 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 electrolytic 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 resistance between each blade of the attachment plug and accessible conductive parts (Note 1) should be more than 1Mohm.
Note 1 : Accessible Conductive Parts including Metal panels, 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 component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test.
2.After removing an electrical assembly equipped with 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 grouned-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 electricity sufficient to damage an ES device.)
1-4
• GENERAL
Power requirements:
Power consumption:
Dimensions (Approx.):
Weight (Approx.):
Operating temperature:
Operating humidity:
•OUTPUTS
VIDEO OUT: COMPONENT VIDEO OUT:
AUDIO OUT:
DIGITAL OUT (COAXIAL):
•SYSTEM
Laser:
Signal system: Frequency response:
Signal-to-noise ratio: Harmonic distortion: Dynamic range:
SPECIFICATIONS
AC 120 V , 60 Hz 8W
360 x 35 x 242 mm (W x H x D) without foot 1.7 kg
5 °C to 35 °C (41 °F to 95 °F) 5 % to 90 %
1 Vp-p 75 Ω, sync negative, RCA jack x 1
(Y) 1.0 V (p-p), 75 Ω,negative sync, RCA jack x 1 (Pb)/(Pr) 0.7 V (p-p), 75 Ω, RCA jack x 2
2.0Vrms (1 KHz, 0 dB), 600 Ω, RCA jack (L, R) x 1
0.5V (p-p), 75 Ω, RCA jack x 1
Semiconductor laser, wavelength 650 nm PAL / NTSC
DVD (PCM 96 kHz): 8 Hz to 44 kHz
DVD (PCM 48 kHz): 8 Hz to 22 kHz
CD: 8 Hz to 20 kHz
More than 100 dB (ANALOG OUT connectors only) Less than 0.02%
More than 95 dB (DVD/CD)
1-5
SECTION 2
CABINET & MAIN CHASSIS
CONTENTS
EXPLODED VIEWS ..................................................................................................................... |
2-2 |
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1. |
Cabinet and Main Frame Section ........................................................................................... |
2-2 |
2. |
Deck Mechanism Section(DP-9) ............................................................................................. |
2-3 |
3. |
Packing Accessory Section.................................................................................................... |
2-4 |
2-1
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EXPLODED VIEWS |
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1. Cabinet and Main Frame Section |
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5 |
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463 |
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463 |
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300 |
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4 |
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Model |
A46 |
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250 |
5.1CH ONLY |
463 |
465 |
320 |
A44 |
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467 |
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463 |
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463 |
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A48 |
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261 |
3 |
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A00 |
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A47 |
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463 |
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2 |
283 |
452 |
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261 |
260 |
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A49 |
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A42 |
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280 |
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452 |
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1 |
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A43 |
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A |
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B |
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C |
D |
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2-2 |
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2. Deck Mechanism Section(DP-9)
A00
439
013
017
012
019
026
001 |
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002 |
A01 |
003 |
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018 |
A02 |
014
020
435 |
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015B |
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016 |
015 |
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015A |
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440 |
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432 |
012 |
030 |
012A |
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010
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024 |
036 |
025 |
431 |
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435 |
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012A
A03
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021 |
035 |
430 |
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035A
438
2-3
3. Packing Accessory Section
806 RF CABLE 810 CABLE SET ASS’Y 
811 PLUG ASS’Y 1WAY(YELLOW) 823 AC ADAPTOR 
812 PLUG ASS’Y 2WAY
808 BATTERY
820 PLUG ASS’Y 1WAY(BLACK)
900 REMOCON |
801 OWNER’S MANUAL |
804 PACKING SHEET
803 PACKING
803 PACKING
802 BOX CARTON
OPTIONAL PARTS
2-4
SECTION 3
ELECTRICAL
CONTENTS
ELECTRICAL TROUBLESHOOTING GUIDE...................................................................... |
3-2 |
|
1. |
Power check flow..................................................................................................................... |
3-2 |
2. |
System operation flow ............................................................................................................ |
3-3 |
3. |
Test & debug flow.................................................................................................................... |
3-4 |
DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING .................... |
3-10 |
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1. SYSTEM 27MHz CLOCK, RESET, FLASH R/W SIGNAL. .................................................... |
3-10 |
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2. SDRAM CLOCK...................................................................................................................... |
3-12 |
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3. |
TRAY OPEN/CLOSE SIGNAL ................................................................................................ |
3-12 |
4. SLED CONTROL RELATED SIGNAL(NO DISC CONDITION) ............................................. |
3-13 |
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5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION) ............................................. |
3-13 |
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6. LASER POWER CONTROL RELATED SIGNAL(NO DISC CONDITION)............................ |
3-14 |
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7. DISC TYPE JUDGEMENT WAVEFORM ................................................................................ |
3-14 |
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8. FOCUS ON WAVEFORM........................................................................................................ |
3-16 |
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9. SPINDLE CONTROL WAVEFORM(NO DISC CONDITION................................................... |
3-17 |
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10. TRACKING CONTROL RELATED SIGNAL(System checking)......................................... |
3-18 |
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11. MT1389D AUDIO OPTICAL AND COAXIAL OUTPUT (SPDIF) .......................................... |
3-19 |
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12. MT1389D VIDEO OUTPUT WAVEFORM............................................................................. |
3-19 |
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13. AUDIO OUTPUT FROM AUDIO DAC .................................................................................. |
3-20 |
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BLOCK DIAGRAMS .................................................................................................................. |
3-21 |
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1. |
Overall Block Diagram .......................................................................................................... |
3-21 |
2. |
Power(SMPS) Block Diagram ............................................................................................... |
3-22 |
3. |
SERVO Block Diagram .......................................................................................................... |
3-23 |
4. |
MPEG & MEMORY Block Diagram ....................................................................................... |
3-24 |
5. |
VIDEO & AUDIO Block Diagram ........................................................................................... |
3-25 |
CIRCUIT DIAGRAMS................................................................................................................ |
3-26 |
|
1. |
Power(SMPS) Circuit DIAGRAM........................................................................................... |
3-26 |
2. AV/JACK Circuit DIAGRAM................................................................................................... |
3-28 |
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3. |
SYSTEM Circuit DIAGRAM ................................................................................................... |
3-30 |
4. |
DRIVER Circuit DIAGRAM..................................................................................................... |
3-32 |
5. |
TIMER Circuit DIAGRAM ....................................................................................................... |
3-34 |
• CIRCUIT VOLTAGE CHART .................................................................................................... |
3-36 |
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PRINTED CIRCUIT DIAGRAMS............................................................................................ |
3-38 |
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1. |
MAIN P.C.BOARD................................................................................................................... |
3-38 |
2. |
KEY P.C.BOARD..................................................................................................................... |
3-40 |
3. |
TIMER P.C.BOARD................................................................................................................. |
3-41 |
4. |
SMPS P.C.BOARD.................................................................................................................. |
3-42 |
3-1
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