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Akai DVP4785KDSM, Service Manual, Page: 1 / 50

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Summary of Contents for DVP4785KDSM

Page 1: ...S E R V I C E M A N U A L M o d e l D V P 4 7 8 5 K D S M D V D P L A Y E R w w w a k a i r u...

Page 2: ...Pin 24 Bit 192kHz D A with Volume Control WM8766 12 2 1 4 Serial EEPROM 2K 256 x 8 24C02 or 16 K 2048 x 8 24C16 13 2 1 5 8M BIT 1Mx8 512Kx16 CMOS FLASH MEMORY 14 2 1 6 512K X 16 Bit X 2 Banks Synchro...

Page 3: ...em that complies with American National Standards institute ANSI C101 1 Leakage Current for Appliances and underwriters Laboratories UL 1270 40 7 With the instrument s AC switch first in the ON positi...

Page 4: ...shock fire and or other hazards Product safety is under review continuously and new instructions are issued whenever appropriate 1 2 Servicing Precautions CAUTION Before servicing Instruments covered...

Page 5: ...in 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 as...

Page 6: ...Descriptions 2 1 1 DVD SANYO HD60 PUH Connector Pin Definition I F Signals I O Pin F 1 F 2 T 3 T 4 C 5 D 6 CD DVD 7 RF 8 A 9 B 10 F 11 GND PD 12 VC 13 VCC 14 E 15 NC 16 VR CD 17 VR DVD 18 LD CD 19 MD...

Page 7: ...Correction PLI Focus Tracking Loading AuDdio D A WM8720 SDRAM 1 16MHzX2 Video D A CS4955 1 F Conn frant pannel Spindle Motor Focus Coil Track Coil Sied Motor Loading Motor BA5954FP 4ch motor Drive BA6...

Page 8: ...nd blank detection z RF level signal generato Audio z Dolby Digital AC 3 EX decoding z DTS DTS ES decoding z MLP decoding for DVD Audio z MPEG 1 layer 1 layer 2 audio decoding z MPEG 2 layer1 layer2 2...

Page 9: ...T OP_INN OP_INP FOO TRO USBM TROPENPWM PWMOUT1 V_ADIN9 USB_VDD3 FMO DMO HIGHA0 HIGHA1 HIGHA2 HIGHA3 HIGHA4 HIGHA5 HIGHA6 HIGHA7 DVDD18 AD7 DVSS APLLCAP AD5 AD4 APLLVSS APLLVDD3 AD3 AD2 AD1 AD0 DVDD3 I...

Page 10: ...nput 21 MDI2 Analog input Laser power monitor input 22 LDO2 Analog output Laser driver output 23 LDO1 Analog output Laser driver output 24 SVDD3 power 3 3v power 25 CSO RFOP Analog output RF positive...

Page 11: ...out Microcontroller address data 0 82 AD1 Inout Microcontroller address data 1 83 AD2 Inout Microcontroller address data 2 84 AD3 Inout Microcontroller address data 3 85 DVSS gnd gnd 86 AD4 Inout Micr...

Page 12: ...lumn address strobe active low 140 RAS Output DRAM row address strobe active low 141 DVDD3 Power 3 3V power 142 RCS Output DRAM chip select active low 143 BA0 Output DRAM bank address 0 144 DVSS gnd g...

Page 13: ...DD3 Power 3 3V power 205 VSYNC Output V ertical sync GPIO16 206 YUV7 Output Video data output bit 7 207 HSYNC Output Horizontal sync GPIO15 208 SPMCLK Inout 209 SPDA TA Analog input 210 SPLRCK Input p...

Page 14: ...42 S_VREFP 243 S_VREFN 244 RFVDD3 Power 3 3V power 245 RFRPDC Analog input RF ripple detect input 246 RFRPAC Analog input RF ripple detect input through AC coupling 247 HFRZC Analog input High frequen...

Page 15: ...word length 13 MD DM Digital input Software Mode Serial interfacedata Hardware Mode De empahsis selection 14 MUTE Digital input output DAC Zero flag output or DAC mute input 15 TESTREF1 Digital input...

Page 16: ...WritesAreAllowed z Self Timed Write Cycle 10 ms max z High Reliability Endurance 1 Million Write Cycles Data Retention 100 Years ESD Protection 3000V z Automotive Grade and Extended Temperature Device...

Page 17: ...for detection of program and erase operation completion Ready Busy pin RY BY Provides a hardware method of detecting program or erase operation completion Sector protection Sector protect chip unprote...

Page 18: ...16...

Page 19: ...al banks Pulse RAS MRS cycle with address key programs CAS Latency 2 3 Burst Length 1 2 4 8 full page Burst Type Sequential interleave All inputs are sampled at the positive going edge of the system c...

Page 20: ...18...

Page 21: ...ow address RA0 RA10 Column address CA0 CA7 BA Bank Select Address Selects bank to be activated during row address latch time Selects band for read write during column address latch time RAS Row addres...

Page 22: ...rmance Video Out 1 Vpp into 75 ohm S Video Out Y 1Vpp into 75 ohm C 0 286 Vpp into 75 ohm D A Converter 27MHz 10bit Audio Performance Frequency Response DVD fs 48 96KHz 4Hz 22 44KHz Video CD fs 44 1KH...

Page 23: ...Do not shut down the player during upgrade it will restart automatically after upgrade 5 Upgrade finish How to change the region code 1 Power on the machine and press OPEN button to push the tray out...

Page 24: ...5 Operating Instruction Please refer to the User s Manual for the operating instruction of the system 22...

Page 25: ...arp Some DVD discs may have special requirements f or pla ying with which this player m ay not b e co mpatible Please refer to specifica tions o n individual disc Discs types This DVD player can play...

Page 26: ...patible disc Check the disc format and its colour system The disc is placed upside down Load a compatible disc Check the disc format and its colour system The disc not put in the tray correctly Check...

Page 27: ...6 Disassembly and Reassembly 25...

Page 28: ...med with the remote controller Point the remote control unit at the remote control sensor and operate Check the batteries are installed with the correct polarities Remove the obstacles between the rem...

Page 29: ...MPEG board 5PIN 2 54mm L 500mm 1 MPEG board 4PIN 2 54mm L 250mm 1 control panel to power board 6PIN 2 54mm L 300mm 1 control panel to MPEG board 13PIN 2 0mm L 170mm 1 output board to MPEG board 14PIN...

Page 30: ...DA1522 CO DCA602 control panel CO DCA602 control panel 1 AV output board CO DOB802 5 1 with SCART Optical and KARAOKE without earphone 4 plastical sets front panel CO 602 front panel 1 power supply bu...

Page 31: ...k bolt 3 8BAUU 12 9 for control panel 2 for power botton 1 for bracket bolt 3 8BAUU 8 8 for Audio output jack bolt 3 15BBHE 8 5 for power board 3 for AV output board bolt 3 6WBHE 11 4 for upper cover...

Page 32: ...0mm 1 for owner s manual bag 480 580mm 1 pearl cotton B appendix re mote control 1 remote control batteries 7 1 set manual 1 Video connection wire 1 5M 1 Audio connection wire 1 5M 1 C others serial s...

Page 33: ...1 CB32 CB33 CB34 CB35 CB36 CB37 CB40 CB41 CB42 CB43 CB44 CB45 CB47 CB49 CB50 CB51 CB52 CB53 CB54 CB56 CB57 CB58 CB59 CB60 CB61 CB62 CB67 CB68 CB72 CB73 CB74 CB75 CB76 CB85 SMD Capacitor 0603 20PF 25V...

Page 34: ...ctrolytic capacitor 100UF 10V 20 5 7mm 4 CE11 CE20 CE42 CE43 Electrolytic capacitor 220UF 10V 20 6 7mm 7 CE9 CE12 CE13 CE4 CE2 CE25 CE26 Electrolytic capacitor 47UF 16V 20 4 7mm 9 CE16 CE17 CE18 CE33...

Page 35: ...or 0603 680E 5 2 R68 R69 SMD resistor 0603 1 0K 5 2 R13 R48 SMD resistor 0603 560E 5 1 R25 SMD resistor 0603 10k 5 14 R1 R2 R52 R60 R67 R70 R33 R34 R50 R54 R55 R57 R58 R59 SMD resistor 0603 15k 5 2 R1...

Page 36: ..._1 8V OUTPUT 1 U1 or H13A304BJ IC CO DJA1389XE SANYO 2003 11 12 1 PCB 9 Components of Power Board Jack 4PIN 2 54mm 1 CN1 Jack 5PIN 2 54mm 1 CN5 Jack 10PIN 2 54mm 1 CN3 4 Jack 3PIN 3 96mm 1 BCN1 BCN2 C...

Page 37: ...0 Y1 UL 10mm 2 BC3 BC4 Safety Regulation capacitor 0 1UF 275V 10 15mm 2 BC1 BC2 Polyester capacitor 47nF 100V 10 Y5P 5mm 2 C2 C3 Ceramic capacitor 0 1uF 50V 20 5mm 2 C4 C5 Diode IN4007 4 D1 D2 D3 D4 D...

Page 38: ...4W 3K 5 1 R11 Carbon Film Resistor 1 4W 470E 5 1 R10 Carbon Film Resistor 1 4W 4 7K 5 1 R9 Carbon Film Resistor 1 4W 5 1K 5 1 R1 Carbon Film Resistor 1 4W 6 8K 5 1 R2 Carbon Film Resistor 1 4W 75K 5...

Page 39: ...1N4148Axial 0 4 5 D1 D2 D3 D4 D5 IC 16312 QFP44 AD16312 1 U1 VFD SAMSUNG 1 IC1 R M TD138 1 RMC1 Button 6 6 5 10 NEXT STOP PREV OPEN REV FWD PAUSE PLAY STOP1 PLAY1 Potentiometer RV0902N 15FD1 A20K P 2...

Page 40: ...9 Block Diagram 38...

Page 41: ...39...

Page 42: ...10 Circuit Diagrams 1 Control Part 2 Index 3 SDRAM FLASH 4 Servo DSP MPEG 5 Video Output 6 Audio Output 7 Power Part 40...

Page 43: ...9 OSC 44 VEE 27 LED4 39 LED3 40 LED2 41 LED1 42 6312 U1 AD16312 R1 10k R2 10k R4 10k R3 10k K8 K1 K7 SIG 1 GND 2 VCC 3 REM1 REM 1 2 3 4 5 6 6PIN CZ1 R8 56K R5 10K R6 10K R7 10K C3_1 47uF 50V LED1 220...

Page 44: ...singal RFV33 L9 FB AVCC 2 3 VCC VCC_AUDIO NAME 2 P3 3V from PIN 46 to PIN136 P CE9 220uF 16V 4 DV33 5 AUDIO DAC WMA8746 WMA8720 AND AUDIO OUT 2 CB2 0 1uF COMMOND89_HD60_V2 1 SD33 1 INDEX POWER RESET...

Page 45: ...11 D12 D13 D14 D15 VCC GND1 WE A19 D10 GND2 A10 A12 A11 A13 A14 A15 A16 A17 RESET R70 10k IIC SD33 CB58 0 1uF U8 ESMT M12L16161A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27...

Page 46: ...Y1 27MHz L19 FB TP28 V18 C2 V18 TP39 TP JP2 1 2 1 TP38 C45 0 1uF CB22 0 1uF TP40 TP Pin assignment version 1 5 R25 R53 20k R60 10k TP16 R39 10 CB30 0 1uF V18 TP36 Change PIN 47 from LIMIT to ADIN VCC...

Page 47: ...3 C54 47pF C53 47pF C82 47pF R75 75 1 C57 47pF 5VV C50 47pF D15 1N4148 5VV R94 75 1 D16 1N4148 VCC Q26 2N3906 1 2 3 D8 1N4148 D11 1N4148 2 CE33 47uF 16V D4 1N4148 B R186 0 5VV L35 1 8uH L34 1 8uH R213...

Page 48: ..._AVDD U13 KHTech DA1131 SOP14 2 CH DAC for DCL34MK 72 4 2 3 1 5 6 7 8 14 13 12 11 10 9 NC SDATA BCK LRCK CAP OUTR GND VDD SCK FORMAT DEEMPH NC MUTE OUTL CE48 10uF 16V CB76 0 1u CB74 0 1u 5V CB73 0 1u...

Page 49: ...12V VCC 1 GND 2 RC 3 REG 4 AUX 5 Source 6 NC 7 Drain 8 U1 TEA1523P L2 BEAD D5 HER108 C8 103 1KV R7 27K 2W U3 TL431 R1 5K1 1 2 3 C4 474 BC2 0 1uF 275V C3 473 POW SW1 R11 3K D11 C19 470uF 25V C17 470UF...

Page 50: ...D G 5V 12V CENT CVBS SL PICKUP CONNECTOR AGND 5V SCART V AGND AGND SCART V M P 12V VGND GND F2 R MUTE 12V GND AGND MO VGND SC SR SY 5V 5V 3V3 AGND 5V CVBS M P ML SL AGND 3V3 ASPDIF HSW VGND MUTE MO 27...

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