Prology DVD-555 Service manual

0 (0)

PROLOGY DVD-555

SERVICE MANUAL

V1.0

SPECIFICATION

Power requirement

12V DC car battery

 

(negative earth)

Operating temperature

-10

+65

Strage temperature

-20

+70

Operational humidity

10%

80%

Atmosphere pressure

860mbar 1060mbar

TABLE OF CONTENTS

CAR DVD PLAYER

1.GENERAL 2.BLOCK DIAGRAM

3.ELECTRICAL TROUBLE SHOOTING GUIDE 4.PRINTED CIRCUIT

5.ELECTRICAL PARTS LIST

PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS

CAUTION: DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY AND NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFACTURER'S APPROVAL. NAUTHORIZED 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 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 WITCH 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 DF DAMAGE OR DETERIORATION TO PARTS AND COMPONENTS, FOR FRAYED LEADS AND 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 RECEIVING 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 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, MAKE SURE TO USE AN A.C. VOLTMETER. HAVING 5000 OHMS PER VOLT OR MORE SENSITIVITY, IN THE FOLLOWING MANNER; CONNECT A 1500 OHMS 10 WATT RESISTOR, PARALLELED BY A.15 MFD. 150V 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. ANY 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.

GOOD EARTH GROUND

PLACE THIS PROBE

ON EACH EXPOSED

SUCH AS THE WATER

METAL PART

PIPE, CONDUIT, ETC.

 

SUBJECT GRAPHIC SYMBOLS

The lightening flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

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-RYS 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 AN X-RAY SHIELD IN COLOR SETS, ALWAYS RE-INSTALL THEM.

3.IT IS ESSENTIAL THAT SERVICE PERSONNEL HAVE AVAILABLE AN ACCURATE AND RELIABLE HIGH VOLTAGE METER. THE CALIBRATION 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 ACCURATE AND RELIABLE HIGH VOLTAGE METER. THE CALIBRATION OF THE METER SHOULD BE CHECKED PERIODICALLY AGAINST A REFERENCE STANDARD, SUCH AS THE ONE AVAILABLE AT YOUR DISTRIBUTOR.

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 EXCESSIVE 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 INTEGRAL 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 PLACEMENT 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 TV'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.

2

SERVICING PRECAUTIONS

CAUTION : Before servicing the DVD covered by this service data and its supplements and ADDENDUMS, 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.

Remember Safety First:

General Servicing Precautions

1. Always unplug the DVD DC power cord from the DC 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.

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 which 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 correctly 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 trom 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 1M ohm.

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 emiconductor 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 toil, 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 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, 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.)

3

Prology DVD-555 Service manual

DV-100 BLOCK

DIAGRAM

LCD/KEY PCB

 

LCD/KEY

 

 

LCD

 

DRIVER

 

UPD16431

 

 

 

 

 

16 PIN CON POWER D8V MCU

FPSW REMOTR ENCODER

TUNER

PLL

 

 

 

 

POWER

B+ ACC

FAE347

TC9257

 

 

 

 

SUPPLY

 

T9V

 

2CH 100mV

 

 

 

 

B+

ACC

A9V

 

A9V

A12V

 

B+

4CH POWER OUT

CDC

BA3121

2CH 1V AUDIO DSP

PRE AMP

4CH 2V

POWER AMP

4X25W

 

TEA6320

2X4558

 

TDA7381

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2CH LINE OUT 2V

 

 

A9V

 

 

VDD-5V

 

 

 

 

 

 

 

 

P5V

 

 

 

AUX-IN

BA3121

2CH 1V

 

MCU

 

LEVEL

 

 

 

TMP87CM21D

3V3 TO 5V

 

 

 

 

 

 

 

 

A5V

 

 

2CH

 

 

 

DIGITALL AUDIO

MAIN

 

 

A9V

A12V

 

 

 

AUDIO D/A

2CH 1V

AUDIO

PRE AMP

 

 

2CH DVD REAR OUT

 

 

 

 

PCB

CS4340

 

SW

4558

 

 

2V

 

 

 

 

 

 

 

 

 

 

 

24PIN CON

 

 

 

 

 

 

 

MCU

SHARP

 

EPROM

SDRAM

DC12V

POWER

 

DG AUDIO

HPD-50

 

29C011

16M

 

SUPPLY

 

SW

 

 

 

 

 

DC1V8

 

 

 

 

 

 

 

DC3V3

 

 

 

 

 

 

 

DC5V

 

VIDEO BP

 

 

ALI DSP

 

 

 

 

FILTERS

RF-PREAMP

ATAPI INTERFACE

 

 

 

SERVO

 

 

 

SP3721

 

 

CIRRUS MPEG

 

M5705

 

 

 

 

 

 

 

CS98100

 

 

 

 

 

 

 

FOCUS

TRACK

 

 

 

 

 

 

MECHA

SLED

DRIVER

DRIVER

 

 

 

 

MOTOR

LOAD

BA5945

BA6849

8M FLASH

SDRAM

EEPROM

 

 

 

 

29LV800

64M

AT24C02A

 

SPINDER MOTOR

DVD-C01 SC

 

 

 

 

 

 

 

10PIN CON POWER D12V D5V LOAD MOTOER

2CH CVBS

A Power Circuit abnormal (For main board)

START

Is the inout of Q419 DC 12V?

YES

Is 40pin of U201 VDD-5V?

YES

Is 26pin of U201 DC 12V?

YES

Is the out of Q404 DC 12V?

YES

Is the output of U404 DC 5V?

YES

Is the out of Q402 P12V?

YES

Is the out of U402 DC 8V?

YES

Is 2pin of U406 DC 3.3V?

YES

Is 2pin of U407 DC 1.8V?

YES

Normal

NO

NO

NO

NO

NO

NO

NO

NO

NO

Check the fuse.

Check Q401 ZD402 L401 and peripheral components.

Check ACC and ACC fuse.

Check ZD401 and peripheral components.

Check Q404 Q408

Check U404 and peripheral components.

Check Q402 Q406 and peripheral components.

Check ZD439 and peripheral components.

Check U406 and peripheral components.

Check U407 and peripheral components.

B Display abnormal (For main board)

START

YES

NO

Does the screen appear?

YES

NO

Is display normal?

YES

Normal

Check if the 14pin voltage of DC8V? Check if the 16pin voltage of DC5V?

Check the key board according to key schematic.

Check the key board according to key schematic.

C IN/OUT abnormal (For main board)

 

The disc can’t be injected

 

 

 

 

 

 

 

YES

 

 

 

NO

 

 

 

 

 

Is 6pin of BA6951 DC 12V?

Check L2

 

YES

 

 

 

 

 

NO

 

 

 

1.Check CN401 at S&D board,connection between

Is voltage between 5 and 10 pin of BA6951

it and MCU.

DC 4.6V after eject-key being pressed?

2.Check R204,BA6951.

 

 

 

 

YES

 

 

 

 

 

NO

 

 

 

Check connection between main board and S&D

Is voltage between 11 and 12 pin of J203 at

S&D board DC 4.5V?

board.

 

 

 

 

YES

Normal

D Logo display abnormal (For S&D board(Servo and Decoder board))

 

NO

 

Is voltage for CN401 normal?

Check connection of main board and S&D

 

 

board.

 

 

 

 

 

YES

NO

No Logo display?

Check S&D board.

YES

NO

Having picture,no color or color

Check decoder part and change Y101.

disappeared during playback.

YES

Normal

E Read disc abnormal (For S&D board)

DISC IN

 

 

NO

 

 

Focus on?

Refer to Focus abnormal.

 

 

YES

 

 

 

 

 

 

 

 

 

 

NO

 

 

Is laser normal?

Refer to laser abnormal.

 

 

YES

 

 

 

 

 

 

 

 

 

 

NO

 

 

Does the disc turn?

 

Refer to disc turn abnormal.

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

NO

 

 

Can TOC be read?

 

 

Refer to TOC abnormal.

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Normal

 

 

 

 

 

 

 

 

 

 

 

F Video abnormal (For S&D board)

NO

Only Logo display

Check the connection of U102 and ZR36776.

YES

YES

Having picture,no color or color

Check decoder part and change Y101.

disappeared during playback.

NO

YES

Having picture,but picture

Check decoder part and change Y101.

disappeared during playback.

NO

Normal

G Audio abnormal (For main board)

 

NO

 

 

Is the rear channel normal?

Refer to rear out abnormal

 

 

YES

 

 

 

 

 

 

 

 

Is the front channel and

NO

 

 

 

Refer to front out abnormal

 

 

 

 

sbw channel normal?

 

 

 

 

 

 

 

 

 

 

 

 

YES

NO

Is the power amplifier normal?

Check U301 and peripheral components

YES

Normal

Loading...
+ 27 hidden pages