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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  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 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  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  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,  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  PALCEMENT 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

Summary of Contents for DKE573XB

Page 1: ...E9453CEM DE9553CEM MODELS DKE573XB DKE574XB DKE575XB DE9353CEM DE9453CEM DE9553CEM SERVICE MANUAL P NO 3829RHP037Z Printed in Korea JANUARY 2005 CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL DKE573XB DE9353CEM DKE574XB DE9453CEM DKE575XB DE9553CEM ...

Page 2: ...CONTENTS SECTION 1 SUMMARY SECTION 2 CABINET MAIN CHASSIS SECTION 3 ELECTRICAL SECTION 4 REPLACEMENT PARTS LIST ...

Page 3: ...ARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1 3 SERVICING PRECAUTIONS 1 4 General Servicing Precautions Insulation Checking Prodedure Electrostatically Sensitive Devices SPECIFICATIONS 1 5 1 2 ...

Page 4: ...AYS 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 X RAY SHIELD...

Page 5: ... 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 u...

Page 6: ...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 AUDIO OUT 2 0 Vrms 1 KHz 0 dB 600 Ω RCA jack L R x 1 SCART TO TV DIGITAL OUT COAXIAL 0 5 V p p 75 Ω RCA jack x 1 SYSTEM Laser Semiconductor laser wavelength 650 nm Signal system PAL NTSC Frequency response DVD PCM 96 kHz 8 Hz to 44 kHz DVD PCM 48 kHz 8 Hz to 22 kHz CD 8 Hz to 20 kHz Signal to noise ratio More than 100 dB ANA...

Page 7: ...2 1 SECTION 2 CABINET MAIN CHASSIS CONTENTS EXPLODED VIEWS 2 2 1 Cabinet and Main Frame Section 2 2 2 Deck Mechanism Section DP 9 2 3 3 Packing Accessory Section 2 4 ...

Page 8: ...1 Cabinet and Main Frame Section 463 A41 276 A00 283 463 463 250 463 463 A48 5 1CH Model ONLY A47 A46 463 465 A44 260 261 280 A43 279 A42 A49 452 452 261 467 320 300 KARAOKE MODEL ONLY KARAOKE MODEL ONLY A 5 4 3 2 1 B C D ...

Page 9: ...2 Deck Mechanism Section DP 9 2 3 A00 439 014 018 001 002 003 A01 A02 020 013 017 012 435 015 019 026 A03 036 021 430 438 035 025 024 010 431 435 012A 035A 012A 015A 015B 432 030 016 440 012 ...

Page 10: ...ection BATTERY 808 PACKING SHEET 804 PACKING OPTIONAL PARTS 803 806 820 OWNER S MANUAL RF CABLE 810 CABLE SET ASS Y 801 REMOCON 900 BOX CARTON 802 PACKING 803 811 812 PLUG ASS Y 1WAY YELLOW PLUG ASS Y 1WAY BLACK PLUG ASS Y 2WAY ...

Page 11: ... MT1389 AUDIO OPTICAL AND COAXIAL OUTPUT SPDIF 3 20 12 MT1389 VIDEO OUTPUT WAVEFORM 3 20 13 MT1389 AUDIO OUTPUT TO AUDIO DAC 3 21 14 AUDIO OUTPUT FROM AUDIO DAC 3 22 BLOCK DIAGRAMS 3 23 1 Overall Block Diagram 3 23 2 Power SMPS Block Diagram 3 24 3 SERVO Block Diagram 3 25 4 MPEG MEMORY Block Diagram 3 26 5 VIDEO AUDIO Block Diagram 3 27 6 KARAOKE Block Diagram KARAOKE MODEL ONLY 3 28 CIRCUIT DIAG...

Page 12: ...ES YES YES YES YES Is the D121 normal YES YES Is there about 2 5V at the IC103 Pin1 Is the D123 normal Is the D125 Normal Power Line of Main PCB DVD is short No 12V Check or Replace the D125 Is the Vcc 14V sup plied to Q123 Collector Check or Replace the Q123 Is the Vcc 12V sup plied to Q126 Base NO NO Check the PWR CTL H signal from µ com YES YES YES No REG 5 0V Check or Replace the D123 Is the V...

Page 13: ...RISC Show LOGO Tray Closed Tray Close to Closed position SLED at Inner Side SLED Moves to Inner Position 1 Judge whether have disc and disc type 2 Jump to related disc reading procedure Recieve OPEN CLOSE Key 1 Execute Pressed Key IR Key 2 System operation Routine Loop 1 Stop Playback Open Tray 2 Display tray open message LOGO Receive CLOSE Key ...

Page 14: ... YES Is 3 3V and 1 8V DC outputs normal on main PCBA YES Connect to PC RS232 Cable and update the FLASH memory code YES Update FLASH successfully YES A Replace power PCBA or AC transformer NO Repair or Replace Power PCBA NO Check the regulators or related diodes NO 1 Check 27MHz system clock 2 Check system reset circuit 3 Check FLASH R W enable signal PRD RWR 4 Check RS232 SIGNALS 5 Check FLASH Me...

Page 15: ...RAM MT1389C and the SDRAM is damaged NO MT1389C VIDEO outputs properly Check the related circuit of MT1389C NO Have TV signal output Check AV cable connection to TV set Normal TROUT TRIN signals Check the filtering and amp circuit of TV signal NO Check the load OPEN CLOSE switch NO Normal TRCLOSE TROPEN signal Check the Tray control IO pins on MT1389C IP9005 NO Normal LOAD LOADsignal Check the cab...

Page 16: ...Check the connection line of STBY signal NO Is FMSO DC Level higher than 1 4V Check the related circuit of FMSO NO SL and SL output properly YES Check the amp circuit on motor driver Check FOSO connection on MT1389C and motor dirver NO NO Check the cable connection with MECHA Proper FOSO outputs to motor driver Proper F F outputs Check the amp circuit on motor dirver NO Check cable connect on with...

Page 17: ...ansistor is OK Check the related circuit on laser power transistor NO Check cable connection between transistor ouput and pick up head YES YES YES Check the related circuit on MT1389C RFL signal Check DMSO related circuit on MT1389C NO NO Check the spindle control amp circuit of motor driver NO Laser off Proper RFL signal on MT1389C Check LDO1 LDO2 signal Proper DMSO signal on MT1389C SP SP output...

Page 18: ...heck the FOSO connection on MT1389C and motor driver NO Check FOSO signal on MT1389C YES YES Check the TRSO connection on MT1389C and motor dirver NO Check the tracking control amp circuit on motor driver NO Normal TEO Signal on MT1389C NO Check the related circuit on MT1389C Properly TRSO signal on MT1389C T T output properly Check cable connection on pick up head Check RFO RFLVL signal waveform ...

Page 19: ...T END NO NO YES YES YES YES Check connection between MT1389C Audio DAC NO Normal Audio DAC out YES Check the related circuit of Audio DAC NO Check Audio filter amplify mute circuit Communications between IR VFD Front pannel key MT1389C is normally NO Check communication lines on MT1389C Check the cable connection on Front pannel ...

Page 20: ...C801 Pin 2 Is the Mic signal at the IC801 Pins3 7 normal Is the Digital signal output at the IC508 Pin1 Replace IC501 Replace the IC508 Check pattern Replace the VR801 Replace IC801 Replace the mic jack Start Insert the Mic jack Does the Mic signal input the IC501 Pin224 NO NO NO NO NO YES YES YES YES ...

Page 21: ...S AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1 SYSTEM 27MHz CLOCK RESET FLASH R W SIGNAL 1 MT1389C main clock is at 27MHz X501 FIG 1 1 1 0V 27MHz 2 MT1389 reset is low active FIG 1 2 Reset Time 3 3VA PWR_CTL RESET ...

Page 22: ...3 12 3 RS232 waveform during procedure Downloading FIG 1 3 TXD RXD 4 Flash R W enable signal during download Downloading FIG 1 4 PRD PWR ...

Page 23: ...3 13 2 SDRAM CLOCK FIG 2 1 3 TRAY OPEN CLOSE SIGNAL FIG 3 1 DCLK 128MHz Vp p 2 2 Vmax 2 7V TRIN TROUT TRCLOSE TROPEN ...

Page 24: ...OL RELATED SIGNAL NO DISC CONDITION FIG 4 1 5 LENS CONTROL RELATED SIGNAL NO DISC CONDITION FIG 5 1 FOSO 1 5V 1 4V 1 3V F 3 2V 2 7V 2 2V F 3 2V 2 7V 2 2V FMSO 1 9V 1 4V 1 1V STBY 3 3V SL 4 2V 2 8V 1 2V SL 4 2V 2 8V 1 5V ...

Page 25: ...3 15 6 LASER POWER CONTROL RELATED SIGNAL NO DISC CONDITION FIG 7 2 DVD 7 DISC TYPE JUDGEMENT WAVEFORM FIG 7 1 DCLK 128MHz Vp p 2 2 Vmax 2 7V F FE RFL MDI1 0V 180mV LD01 3 3V 2 3V LD02 3 3V 2 3V ...

Page 26: ...3 16 FIG 7 2 DVD FIG 7 3 CD F F FE FE RFL RFL ...

Page 27: ...3 17 FIG 7 4 CD 8 FOCUS ON WAVEFORM FIG 8 1 DVD FE FOSO F F F FE RFL ...

Page 28: ...3 18 FIG 8 2 CD 9 SPINDLE CONTROL WAVEFORM NO DISC CONDITION FIG 9 1 FOSO F DMSO 1 4V 1 8V SP 3 6V 2 4V SP 3 6V 4 8V FE F ...

Page 29: ...3 19 10 TRACKING CONTROL RELATED SIGNAL System checking FIG 10 1 DVD FIG 10 2 CD TE TRSO T T TE TRSO T T ...

Page 30: ...3 20 11 MT1389C AUDIO OPTICAL AND COAXIAL OUTPUT SPDIF FIG 12 1 13 MT1389C VIDEO OUTPUT WAVEFORM 1 100 FIG 13 1 TE TRSO T T ...

Page 31: ...3 21 2 COMPOSITE VIDEO SIGNAL FIG 13 2 14 MT1389C AUDIO OUTPUT TO AUDIO DAC FIG 14 1 ASDATA3 ...

Page 32: ...3 22 15 AUDIO OUTPUT FROM AUDIO DAC FIG 15 1 ...

Page 33: ...2_TXD IECDAOUT COAXIAL SPDIF CDLD DVDLD SVREF21 5V 8V HOMESW INSW OUTSW ROMDATA 0 7 DMUTE IIC VFD DAC_SCK IC503 4M 16BIT 4Bank SDRAM VD33D MA 00 11 DMCLK CSJ BA0 BA1 DQM WEJ CASJ RASJ IIC VFD DAC_TXD IC501 MTK MT1389 12V 5V YC_MIX SER3 DAC_ML0 SER 0 2 DAC_ML1 OPEN CLOSE SLEGP SPINDLE FOCUS TRACK SVREF DAC_RST CD_DVD VR_CD VR_DVD CD_DVD_CT XSFGN XSFGP CN503 RS232 Download RS232_RXD IC301 CS4360 6DA...

Page 34: ...MPS Block Diagram 8V 3 2V FILTER π SWITCHING IC TRANS FEED B 3 4VA RECTIFIER 5 6V RECTIFIER 9 5V LPF RECTIFIER 14V LPF 12V PWR CTL 5V 5 6V M 5 6VA RECTIFIER 3 4V LPF AC100 240V RECTIFIER REG T W WITH 1389C WITH 1389D ...

Page 35: ...DI 1 V20 PICKSEL LIMIT TRIN TROUT TRCLOSE STBY V1P4 MA 0 11 DQM0 DQM1 WE CAS RAS CS BA0 BA1 SDCLK SDCKE DQ 0 15 PRD PWR PCE AD 0 7 A 0 20 SCL SDA RXD TXD IC201 IP9005 Motor Driver M D PICK UP X501 IC501 MT1389C DVDPLAYER ONE CHIP 27MHz X TAL ALPC IC503 4M x 16bit SDRAM FLASH ROM EEP ROM RS232C MTK 3 SERVO Block Diagram ...

Page 36: ...mp VIDEO Interface AUDIO Interface LED DRIVE IC IC503 SDRAM 64M DCLK WE CAS RAS CS DCKE MA 0 10 DQM0 DQM1 DQ 0 15 X501 27MHz AMDAT ACLK ABCK ALRCK KARAOKE BOARD SCL SDA Y2 Y Y3 Color Y4 Y Y5 Cb Y6 Cr ASPECT 16 9 ACLK ALRCK ABCK MUTE VSCK VSDA ASDTA 0 3 ASTB SCL SDA ASPDIF PWR PCE PRD A 0 20 AD 0 7 DIN DOUT IC505 RESET IC RESET ...

Page 37: ...uffer OP Amp LPF Buffer R G B Y Pb Pr Y C DAC RESET ACLK SCL SDA DAC RESET ACLK SCL SDA ADATA1 ADATA2 ADATA3 ADATA3 IC601 IC301 IC602 IC302 IC303 IC304 CVBS COMPONENT R G B Y Pb Pr SUPER VIDEO Y C A V JACK MPEG MPEG MPEG 5 1CH BOARD FRONT R REAR R FRONT L REAR L CENTER WOOFER AUDIO L AUDIO R VIDEO 6dB Amp IC604 ...

Page 38: ...hone is connected at this time MICON recoguizes the connection and prepares the compo sition of external voice and internal melody 3 The week signal of the microphone is converted to the digital signal after voice output that has passed through PREAMP BA3308 and AMP KA741 passes through CS5331 that is Audio ADC Analog to Digital convertor 4 This digital signal enters NT1389C that is MPEG IC 5 This...

Page 39: ...ATION OF THE LATEST SAFETY AND PERFORMANCE IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED UNTIL THE NEW SERVICE LITERATURE IS PRINTED NOTE 1 Shaded parts are critical for safety Replace only with specified part number 2 Voltages are DC measured with a digital voltmeter during Play mode A B C D E F G H I J K L M N O P Q R S T 14VA No Power D125 is Defective 12V No Power Q123 is Defective 5 0V No P...

Page 40: ...3 31 3 32 2 AV JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...

Page 41: ...3 33 3 34 A B C D E F G H I J K L M N O P Q R S T 3 SYSTEM CIRCUIT DIAGRAM ...

Page 42: ...3 35 3 36 4 DRIVER CIRCUIT DIAGRAM CD DVD LD will not on A B C D E F G H I J K L M N O P Q R S T ...

Page 43: ...3 37 3 38 5 TIMER CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...

Page 44: ...6 5 1CH OPTIONAL PART KARAOKE KARAOKE MODEL ONLY CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T 3 39 3 40 ...

Page 45: ...3 41 3 42 7 SCART CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...

Page 46: ... 93 151 1 49 1 62 152 1 8 1 75 153 0 0 154 0 0 155 3 3 3 3 156 1 72 1 72 157 0 92 2 29 158 0 0 159 0 0 160 0 0 161 0 0 162 1 56 1 4 163 0 0 164 2 36 1 54 165 2 32 1 61 166 1 49 1 61 167 3 3 3 3 168 3 25 3 24 169 3 3 3 27 170 0 0 171 0 0 172 0 0 173 1 8 1 8 174 3 33 3 3 175 0 0 176 2 73 2 73 177 0 0 178 3 32 3 32 179 2 75 0 180 0 0 181 0 0 182 3 3 3 3 183 0 0 184 0 0 185 0 0 186 0 0 187 0 0 188 0 0...

Page 47: ...3 45 3 46 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...

Page 48: ...D Solder Side 3 TOOL ONLY 4 TOOL ONLY Solder Side 5 TOOL ONLY Solder Side 3 TOOL ONLY TOP VIEW BOTTOM VIEW Solder Side Solder Side 4 TOOL ONLY TOP VIEW BOTTOM VIEW Solder Side Solder Side 5 TOOL ONLY TOP VIEW BOTTOM VIEW Solder Side Solder Side ...

Page 49: ...49 3 50 4 SMPS P C BOARD LOCATION GUIDE 5 5 1CH VGA P C BOARD OPTIONAL PART LOCATION GUIDE Solder Side 6 KARAOKE P C BOARD 3 TOOL ONLY LOCATION GUIDE 4 TOOL ONLY LOCATION GUIDE 5 TOOL ONLY LOCATION GUIDE ...

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