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Emerson EWD7002, Service Manual

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Emerson EWD7002 Service Manual Download Page 18

DVD Signal Process Block Diagram

E5662BLD

1-7-5

1-7-6

IC201 (DVD SIGNAL PROCESS)

PARA0

PARA0-PARA7

PARA1

PARA2

PARA3

PARA4

PARA5

PARA6

PARA7

FROM/TO RF SIGNAL
PROCESS/SERVO 
BLOCK DIAGRAM

111

110

ARF

NARF

TESTSG

DATA
SLICER

PLL

VCO

CPU
INTERFACE

VIDEO/AUDIO
INTERFACE

DVD
DEMODULATOR

MEMORY 
MANAGER

172

168

166

164

160

158

151

149

82

TO VIDEO 
BLOCK DIAGRAM

BCA

DATA(VIDEO/AUDIO) SIGNAL

DVD MAIN CBA UNIT

FROM/TO
SYSTEM
CONTROL
BLOCK 
DIAGRAM

CPUDT0

NINT1

ADDRESS  BUS

DATA  BUS

NINT2

NINT1

NINT2

WAIT

/RE

/WEL

CS1

RESET

WAIT

/RE

/WEL

CS1

RESET

CPUDT7

30

22
17

9

~

44

37

~

~

~

CPUADR0

CPUADR17

~

2

5

6

36

35

34

47

OSCI1

X201

(16.9344MHz)

OSCO1

79

80

Summary of Contents for EWD7002

Page 1: ...SERVICE MANUAL DVD PLAYER EWD7002 ...

Page 2: ...l conceivable ways in which service might be done or of the possible hazardous consequences of each way Consequently Funai has not undertaken any such broad evaluation Accordingly a servicer who uses a service procedure or tool which is not recommended by Funai must first use all precautions thoroughly so that neither his safety nor the safe operation of the equipment will be jeopardized by the se...

Page 3: ...Manufactured under license from Dolby Laboratories Dolby and the double D symbol are trademarks of Dolby Laboratories DTS and DTS Digital Out are trademarks of Digital Theater Systems Inc ...

Page 4: ...ly AC120 V 60 Hz 3 Load imp 100 K ohm 4 Room ambient 25 C ITEM CONDITIONS UNIT NOMINAL LIMIT 1 Video Output 75 ohm load Vpp 1 0 2 Coaxial Digital Out mVpp 500 3 Audio PCM 3 1 Output Level 1kHz 0dB Vrms 2 0 3 2 S N dB 110 3 3 Freq Response DVD fs 48kHz 20 22kHz dB 2 CD fs 44 1kHz 20 20 kHz dB 2 3 4 THD N 1 kHz 0dB 0 005 ...

Page 5: ...tion shown in the figure When checking the laser diode be sure to keep your eyes at least 30cm away from the pickup lens when the diode is turned on Do not look directly at the laser beam Caution Use of controls and adjustments or doing procedures other than those specified herein may result in hazardous radiation exposure Do not look directly at the laser beam coming from the pickup or allow it t...

Page 6: ...especially 1 Wires covered with PVC tubing 2 Double insulated wires 3 High voltage leads D Use specified insulating materials for hazardous live parts Note especially 1 Insulation tape 2 PVC tubing 3 Spacers 4 Insulators for transistors E When replacing AC primary side components transformers power cord etc wrap ends of wires securely about the terminals before solder ing F Observe that the wires ...

Page 7: ...ference only Be sure to confirm the precise values 2 Leakage Current Test Confirm the specified or lower leakage current between B earth ground power cord plug prongs and externally exposed accessible parts RF termi nals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc is lower than or equal to the specified value in the table below Measuring Method ...

Page 8: ...ve the flat pack IC with tweezers while apply ing the hot air 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted Fig S 1 6 1 Release the flat pack IC from the CBA using twee zers Fig S 1 6 Caution 1 Do not supply hot air to the chip parts around the flat pa...

Page 9: ...l pins of the flat pack IC you can remove it easily Fig S 1 3 2 Affix the wire to a workbench or solid mounting point as shown in Fig S 1 5 3 While heating the pins using a fine tip soldering iron or hot air blower pull up the wire as the solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig S 1 5 4 Bottom of the flat pack IC is fixed with glue to the CBA when removing ...

Page 10: ...ur due to a potential difference caused by electro static charge during unpacking or repair work 1 Ground for Human Body Be sure to wear a grounding band 1MΩ that is prop erly grounded to remove any static electricity that may be charged on the body 2 Ground for Workbench 4 Be sure to place a conductive sheet or copper plate with proper grounding 1MΩ on the workbench or other surface where the sem...

Page 11: ...11 OPEN CLOSE Button Press to insert discs into or remove them from the tray 12 Disc loading tray 13 DISPLAY Button Displays the current status on the TV screen for checking purposes 14 AUDIO Button Press to select a desired audio language or sound mode 15 SUBTITLE Button Press to select a desired subtitle language 16 ANGLE Button Press to change the camera angle to see the sequence being played b...

Page 12: ...ay Lights up when a DVD is inserted on the tray Lights up when the inserted disc comes to a pause Stays on when the A B repeat function is on Stays on when the repeat function is on Displays how long a current title or track has been played back When a chapter or track has switched the number of a new title chapter or track is displayed Power on No disc inserted Tray open Tray closed Loading the D...

Page 13: ... release five Locking Tabs L 3 to do this first release two Locking Tabs A at the side and then three Locking Tabs B at the bottom CAUTION 2 Electrostatic breakdown of the laser diode in the optical system block may occur as a potential difference caused by electrostatic charge accumulated on cloth human body etc during unpacking or repair work To avoid damage of pickup follow next procedures 2 1 ...

Page 14: ...ont Assembly Tray Panel A A L 3 L 2 L 1 L 1 B Fig D2 3 DVD Mecha S 2 S 2 CN101 CN401 Fig D3 View for B Pickup Unit C B Short the three short lands by soldering View for C Slide View for A OR Short the three short lands by soldering DVD Mecha A Fig D4 ...

Page 15: ...HOW TO MANUAL EJECT 1 Remove the Top Case 2 Insert the eject bar length approximately 80 mm diameter approximately 3 mm into the manual eject hole on the DVD Mecha Then press it until the tray is ejected Eject Bar Length approximately 80 mm Diameter approximately 3 mm Manual Eject Hole DVD Mecha Tray Top Case ...

Page 16: ...01 CN1001 2 28 27 1 12 7 8 9 10 11 REMOTE SENSOR RM2001 1G 7G 23 17 a KEY 1 b KEY 2 c KEY 3 d KEY 4 e K1 K2 FP STB FP DIN FP DOUT FP CLK GRID FIP SEGMENT FL2001 IC2001 DVD MAIN CBA UNIT AV CBA FG CBA RELAY CBA FRONT PANEL CONTROL BLOCK DIAGRAMS TREV TIN TOUT TFWD MUTE PS CD DVD CFE CAS STANDBY ADDRESS BUS DATA BUS CD DVD CFE CAS STANDBY 71 62 63 70 SCK 72 STDIO SEN SCK STDIO 13 14 16 3 4 FG SENSOR...

Page 17: ...MOTOR DRIVE TRACKING MOTOR DRIVE LOADING MOTOR DRIVE SPINDLE MOTOR DRIVE POWER SAVE SLIDE MOTOR DRIVE LOADING MOTOR SPINDLE MOTOR SLIDE MOTOR M 5 21 2 1 23 26 25 27 22 24 4 67 115 114 118 117 DVD MAIN CBA UNIT FROM TO SYSTEM CONTROL BLOCK DIAGRAM FROM TO DVD SIGNAL PROCESS BLOCK DIAGRAM SCK CD DVD TESTSG ARF NARF STDIO SEN 11 STANDBY TRAY IN 3 GND 5 TRAY OUT 4 TRAY IN TRAY OUT TP001 TP002 MONREF M...

Page 18: ...A SLICER PLL VCO CPU INTERFACE VIDEO AUDIO INTERFACE DVD DEMODULATOR MEMORY MANAGER 172 168 166 164 160 158 151 149 82 TO VIDEO BLOCK DIAGRAM BCA DATA VIDEO AUDIO SIGNAL DVD MAIN CBA UNIT FROM TO SYSTEM CONTROL BLOCK DIAGRAM CPUDT0 NINT1 ADDRESS BUS DATA BUS NINT2 NINT1 NINT2 WAIT RE WEL CS1 RESET WAIT RE WEL CS1 RESET CPUDT7 30 22 17 9 44 37 CPUADR0 CPUADR17 2 5 6 36 35 34 47 OSCI1 X201 16 9344MH...

Page 19: ...S 58 63 66 73 74 19 CS CS INTERNAL PERIPHERALS PORTS PROGRAMMABLE CPU INTERFACE CENTRAL COMMAND PORT FRONT END LINK INTERFACE ST20 ARBITER MEMORY CONTROLLER SDRAM ARBITER SHARED SDRAM INTERFACE I F VIDEO DECODER AUDIO DECODER CACHE SUBSYSTEM CPU VIDEO FILTERING OSD SP DECODER MIXING 4dB AMP 2dB AMP LPF DRIVER Y C CD FIFO SDRAM BLOCK MOVE DENC SPDIF PCM LRCLK PCM SCLK PCM DATA0 PCM BCK FROM DVD SIG...

Page 20: ...A MUTE AUDIO L OUT 1 2 3 13 14 15 16 FROM VIDEO BLOCK DIAGRAM SERIAL PORT SERIAL CONTROL 4X 8X OVERSAMPLING DIGITAL FILTER FUNCTION CONTROLLER ENPHANCED MULTI LEVEL DELTA SIGMA MODULATOR DAC LPF AMP L CH R CH LPF AMP DAC ZERO DETECT SYSTEM CLOCK 1 2 6 7 5 AUDIO R OUT PCM BCK SPDIF PCM DATA0 PCM LRCLK ADAC MD ADAC MC ADAC ML PCM SCLK AV CBA DVD MAIN CBA UNIT AUDIO SIGNAL DATA AUDIO SIGNAL 18 18 SPD...

Page 21: ... P ON 3 3V P ON 12V EV 5V IC1006 SHUNT REGULATOR SWITCHING D1008 SCHOTTKY D1030 RECTIFIER D1003 RECTIFIER D1009 RECTIFIER D1013 D1016 RECTIFIER SWITCHING CONTROL LATCH REG 1 2 6 BRIDGE RECTIFIER HOT AV CBA REPLACE FUSE AS MARKED Ce symbole reprèsente un fusible à fusion rapide CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE ONLY WITH THE SAME TYPE FUSE ATTENTION POUR UNE PROTECTION CO...

Page 22: ...identified by the mark in the schematic diagram and the parts list Before replacing any of these components read the parts list in this manual carefully The use of substitute replacement parts that do not have the same safety characteristics as speci fied in the parts list may create shock fire or other hazards Capacitor Temperature Markings Capacitors and transistors are represented by the fol lo...

Page 23: ...aintain original function and reliability of repaired units use only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Wire Connectors 1 Prefix symbol CN means connector can disconnect and reconnect 2 Prefix symbol CL means wire solder holes of the PCB wire is soldered directly 5 Mode SP 6 Voltage indications for PLAY mode on the ...

Page 24: ... F3 F4 F5 G1 G2 G3 G4 G5 TRACKING SERVO SIGNAL FOCUS SERVO SIGNAL DATA VIDEO AUDIO 1 8 3 1 8 4 1 8 5 E5662SCD1 DVD Main 1 4 Schematic Diagram MAIN 1 4 Ref No Position IC101 C 4 IC102 F 5 IC103 B 3 IC301 E 2 Q101 B 3 Q102 B 3 CN101 A 4 CN302 G 2 CN501 A 2 CONNECTORS ICS TRANSISTORS ...

Page 25: ... M3 M4 M5 N1 N2 N3 N4 N5 TRACKING SERVO SIGNAL FOCUS SERVO SIGNAL SLIDE SERVO SIGNAL SPINDLE SERVO SIGNAL DATA VIDEO AUDIO DVD Main 2 4 Schematic Diagram 1 8 6 1 8 7 1 8 8 E5662SCD2 MAIN 2 4 Ref No Position IC201 N 2 IC401 I 3 Q401 I 3 CN201 N 1 CN401 H 4 CONNECTORS ICS TRANSISTORS ...

Page 26: ... S3 S4 T1 T2 T3 T4 U1 U2 U3 U4 O5 P5 Q5 R5 S5 T5 U5 DATA AUDIO VIDEO SIGNAL DATA VIDEO DATA VIDEO AUDIO DVD Main 3 4 Schematic Diagram 1 8 9 1 8 10 1 8 11 E5662SCD3 MAIN 3 4 Ref No Position IC601 T 1 IC602 O 3 IC605 O 5 IC606 O 4 Q701 P 5 ICS TRANSISTORS ...

Page 27: ...connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE ONLY WITH THE SAME TYPE FUSE ATTENTION POUR UNE PROTECTION CONTINUE LES RISQES D INCELE N UTILISER QUE DES FUSIBLE DE MEMO TYPE RISK OF FIRE REPLACE FUSE AS MARKED This symbol means fast operating fuse Ce symbole reprèsen...

Page 28: ...2 I3 J1 J2 J3 AUDIO SIGNAL DATA AUDIO VIDEO SIGNAL AV 2 3 Schematic Diagram 1 8 15 1 8 16 E5662SCAV2 AV 2 3 Ref No Position IC1201 G 1 IC1402 H 3 Q1201 H 1 Q1202 H 1 Q1203 H 1 Q1204 H 1 Q1351 I 3 CN1601 F 3 ICS TRANSISTORS CONNECTORS ...

Page 29: ...G 1G 4G 6G 2G a d g c b e f 1 3 2 4 5 DVD VCD PBC STANDBY A B REPEAT TRK CHP TITLE 7G 6G 5G 4G 3G 2G 1G a b c d e f g c d e f g c d e f g c d e f g c d e f g c d e f g h i a b a b a b a b a b FL2001 MATRIX CHART STANDBY TITLE CHP TRK CD V PBC DVD REPEAT A B 1 3 2 4 5 AV 3 3 Ref No Position IC2001 L 2 IC ...

Page 30: ...OTING THIS TYPE POWER SUPPLY CIRCUIT A VARIABLE ISOLATION TRANSFORMER IS REQUIRED CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE ONLY WITH THE SAME TYPE FUSE ATTENTION POUR UNE PROTECTION CONTINUE LES RISQES D INCELE N UTILISER QUE DES FUSIBLE DE MEMO TYPE RISK OF FIRE REPLACE FUSE AS MARKED This symbol means fast operating fuse Ce symbole reprèsente un fusible à fusion rapide A V F ...

Page 31: ...ower supply circuit to fail BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT AN ISOLATION TRANSFORMER MUST BE USED ALSO IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWLY WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT A VARIABLE ISOLATION TRANSFORMER IS REQUIRED CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE ONLY WITH THE SAME TYPE FUSE ATTENTION POUR U...

Page 32: ...TOP MODE WF1 WF3 WAVEFORMS WF6 SPDIF Pin 18 of CN1601 1V 0 2usec WF1 Pin 5 of CN1601 WF3 Pin 9 of CN1601 WF4 AUDIO L Pin 13 of CN1601 1V 0 5msec WF5 AUDIO R Pin 15 of CN1601 1V 0 5msec WF2 Pin 7 of CN1601 VIDEO Y 0 2V 20usec VIDEO CVBS 0 5V 20usec VIDEO C 0 2V 20usec ...

Page 33: ...18 18 P ON 3 3V 19 19 PWRCON 20 20 FP STB 21 21 FP DIN 22 22 FP DOUT 23 23 FP CLK 24 24 CN501 CN1001 VIDEO V 1 1 NU 2 2 VIDEO U 3 3 GND 4 4 VIDEO Y 5 5 A L MUTE 12 12 GND 11 11 GND 6 6 VIDEO CVBS 7 7 GND 8 8 VIDEO C 9 9 GND 10 10 CN701 CN1601 AC CORD AUDIO OUT L AUDIO OUT R VIDEO OUT DIGITAL AUDIO OUT S VIDEO OUT EV 2 5V 3 3 25 25 26 26 OC KEY REMOTE CN3001 SW CBA M M SPINDLE MOTOR SLIDE MOTOR REL...

Page 34: ...f Fig c is described as follows 5 After programming is finished the tray opens auto matically Fig e appears on the screen and the checksum in 3 of Fig e appears on the VFD Fig f At this time no buttons are available 6 For tray opening plug the AC cord into the AC out let 7 Turn the power on by pressing the power button and the tray will close BE F W VERSION UP MODE PLEASE INSERT A DISC FOR BE F W ...

Page 35: ...1 LM LM I o TL123 SP TP122 Tv TL122 0V 5V 0V Tray close Tray open Tray close Play Play Tray open Play 0V Eject key on 6V 2V 5V 0V Disc Rotation Eject key on 2V 2 0s 0V 6V 4 4s 1 2s 700ms 1 7s 0V SYSTEM CONTROL TIMING CHARTS ...

Page 36: ...ply 7 Out a KEY 1 Segment Output Key Source 1 8 Out b Key 2 Segment Output Key Source 2 9 Out c Key 3 Segment Output Key Source 3 10 Out d Key 4 Segment Output Key Source 4 11 Out e Segment Output 12 In f 13 In g 14 Out h 15 VEE Pull Down Level 16 Out i Segment Output 17 Out 7G Grid Output 18 6G 19 5G 20 4G 21 3G 22 2G 23 1G 24 VDD Power Supply 25 VSS GND 26 In OSC Oscillator Input 27 Out DOUT Ser...

Page 37: ...4558D KIA4558P 28 15 14 PT6315 S PT6315 S TP 1 E C B 2SA1015 Y TPE2 KTA1266 Y 2SA966 Y 2SC2236 Y TPE6 C E C B 2SC2785 H KTC3199 GR KRA110M KTA1273 Y KRC110M AT BA1L3Z T BN1L3Z P KTC3205 Y A K C E LTV 817 B C F R A K KIA431 AT G D S 2SK3374 1 2 3 4 PQ018EF01SZ 34 18 17 MM1567AJ MM1566AF 1 LEAD IDENTIFICATIONS ...

Page 38: ...t AV CBA JK1201 JK1403 JK1401 2L071 2L071 2L031 2L031 2L071 2L011 2L011 2L011 A2 A16 2L021 2L031 2L021 2L021 A15 A17 F1001 AC1001 2L041 2L041 1B1 2L031 A22 See Electrical Parts List for parts with this mark Some Ref Numbers are not in sequence A23 A13 A13 A1X 2B4 A21 ...

Page 39: ...1 15 2 E5662EX X10 X5 X2 X4 S2 S2 S4 Unit S1 A22 X1 Packing ...

Page 40: ... CODE HB400UD or 0VM412678 LABEL BAR CODE E5662UD 0VM413321 A23 LABEL TELEPHONE NUMBER H7931UD EMERSON 0VM411684 1B1 DVD MECHA 0838 VCDVM030 N79F1FVM 2L011 SCREW C TIGHT M3X5 BIND HEAD GBKC3050 2L021 SCREW S TIGHT M3X10 BIND HEAD GBMS3100 2L031 SCREW C TIGHT M3X6 BIND HEAD GBMC3060 2L041 SCREW B TIGHT M3X8 BIND HEAD GBKB3080 2L071 SCREW C TIGHT M3X6 BIND HEAD GBMC3060 PACKING S1 GIFT BOX CARTON E5...

Page 41: ...Z 0 1µF 50V CHD1JZ30F104 C1046 CHIP CERAMIC CAP F Z 0 1µF 50V CHD1JZ30F104 C1047 FILM CAP P 0 01µF 50V J or CMA1JJS00103 FILM CAP P 0 01µF 50V J CA1J103MS029 C1048 ELECTROLYTIC CAP 220µF 16V M CE1CMASDL221 C1049 CHIP CERAMIC CAP F Z 0 1µF 50V CHD1JZ30F104 C1201 ELECTROLYTIC CAP 10µF 16V M CE1CMASDL100 C1202 ELECTROLYTIC CAP 10µF 16V M CE1CMASDL100 C1203 CHIP CERAMIC CAP CH J 680pF 50V CHD1JJ3CH681...

Page 42: ...M or NDTZ01N4148M SWITCHING DIODE 1SS133 T 77 QDTZ001SS133 D2004 SWITCHING DIODE 1N4148M or NDTZ01N4148M SWITCHING DIODE 1SS133 T 77 QDTZ001SS133 ICS IC1001 PHOTOCOUPLER LTV 817B F or NPEB0LTV817F Ref No Description Part No PHOTOCOUPLER LTV 817C F NPEC0LTV817F IC1002 1 8V REGULATOR PQ018EF01SZ QSZBA0SSH012 IC1003 IC KIA431 AT NSZLA0TJY001 IC1006 IC KIA431 AT NSZLA0TJY001 IC1201 IC OP AMP KIA4558P ...

Page 43: ...JATZ0753 R1073 METAL OXIDE FILM RES 2W J 10 Ω or RN02100ZU001 Ref No Description Part No METAL OXIDE FILM RES 2W J 10 Ω RN02100KE009 R1075 PCB JUMPER D0 6 P5 0 JW5 0T R1077 CARBON RES 1 6W J 220 Ω or RCX6JATZ0221 CARBON RES 1 4W J 220 Ω RCX4JATZ0221 R1078 CARBON RES 1 6W J 1 2k Ω or RCX6JATZ0122 CARBON RES 1 4W J 1 2k Ω RCX4JATZ0122 R1201 CHIP RES 1608 1 10W J 220k Ω or RRXAJR5Z0224 CHIP RES 1608 ...

Page 44: ...CHIP RES 1608 1 10W J 4 7k Ω or RRXAJR5Z0472 CHIP RES 1608 1 16W J 4 7k Ω RRXGJR5Z0472 R2006 CHIP RES 1608 1 10W J 220 Ω or RRXAJR5Z0221 CHIP RES 1608 1 16W J 220 Ω RRXGJR5Z0221 R2031 CHIP RES 1608 1 10W J 2 2k Ω or RRXAJR5Z0222 CHIP RES 1608 1 16W J 2 2k Ω RRXGJR5Z0222 R2032 CHIP RES 1608 1 10W J 2 2k Ω or RRXAJR5Z0222 CHIP RES 1608 1 16W J 2 2k Ω RRXGJR5Z0222 R2034 CHIP RES 1608 1 10W J 2 2k Ω o...

Page 45: ...Printed in Japan 2002 03 22 HO EWD7002 E5662UD ...

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