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Akai DV-P3470S Service Manual

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DVD PLAYER
Model:
DVP3470S/SK
DVP3570S/SK/DS/DSK/DPSK
SERVICE MANUAL
www.akai.ru

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Summary of Contents for Akai DV-P3470S

  • Page 1 DVD PLAYER Model: DVP3470S/SK DVP3570S/SK/DS/DSK/DPSK SERVICE MANUAL www.akai.ru...

  • Page 2: Table Of Contents

    CONTENTS 1. PRECAUTIONS-------------------------------------------------------------------------------------------------------------------------1 1-1 S -------------------------------------------------------------------------------------------------------------1 AFETY RECAUTIONS 1-2 S ---------------------------------------------------------------------------------------------------------2 ERVICING RECAUTIONS 1-2-1 General Serving Precautions------------------------------------------------------------------------------------------------2 1-2-2 Insulation Checking Procedure ---------------------------------------------------------------------------------------------3 1-3 ESD P -----------------------------------------------------------------------------------------------------------------3 RECAUTIONS 2. REFERENCE INFORMATION ------------------------------------------------------------------------------------------------------4 2-1 C ------------------------------------------------------------------------------------------------------4 OMPONENT ESCRIPTIONS 2-1-1 DVD ATAPI Loader ---------------------------------------------------------------------------------------------------------4 2-1-2 NTSC/PAL Digital Video Encoder (CS4955) ----------------------------------------------------------------------------6 2-1-3 DVD Processor Chip (MT1369AE) ---------------------------------------------------------------------------------------8 2-1-4 8-Pin, 24-Bit, 96kHz Stereo D/A CONVERTER (WM8720) -------------------------------------------------------- 17...

  • Page 3: Precautions

    1-1 Safety Precautions 1) Before returning an instrument to the customer, always make a safety check of the entire instrument, including, but not limited to, the following items: (1) Be sure that no built-in protective devices are defective or have been defeated during servicing. (1) Protective shields are provided to protect both the technician and the customer.

  • Page 4: Servicing Precautions

    notes non or inside the cabinet, or on the chassis. 5) Components, parts, and/or wiring that appear to have overheated or that are otherwise damaged should be replaced with components, parts and/or wiring that 3) Design Alteration Warning-Do not alter of add to the mechanical or electrical design of this instrument.

  • Page 5: Insulation Checking Procedure

    and that the portion around the serviced part has not (500V) to the blades of the attachment plug. The insulation been damaged and so on. Further, check the insulation resistance between each blade of the attachment plug and between the blades of the attachment plus and accessible conductive parts (see note) should be more than accessible conductive parts.

  • Page 6: Reference Information

    2. Reference Information 2-1 Component Descriptions 2-1-1 DVD SANYO HD60 PUH Connector Pin Definition I/F Signals I/O Pin # CD/DVD GND-PD VR-CD VR-DVD LD-CD LD-DVD GND-LD...
  • Page 7 4. Block Diagram Disc MT1369 MT1369 (RF AMP) (Decode/Servo) AuDdio D/A Disc motor unit Laser Driver ATAPI WM8720 Laser Equalizer Buffer Manager pickup Error Gen Demodulator SDRAM Error Correction 1*16MHzX2 Focus & Tracking Video D/A Loading CS4955 Spindle Focus Track Sied Loading Motor...

  • Page 8: Ntsc/Pal Digital Video Encoder (Cs4955)

    2-1-2 NTSC/PAL Digital Video Encoder (CS4955) FEATURES support • Six DACs providing simultaneous composite, S-video, • VBI encoding support and RGB or Component YUV outputs • Wide-Screen Signaling (WSS) support, • Programmable DAC output currents for low EIA-JCPX1204) • NTSC closed caption encoder with interrupt imped-ance(37.5Ω) and high impedance(150 •...
  • Page 9 PIN DESCRIPTIONS Pin Name Pin Number Type Description V[7:0] 8,7,6,5,4,3,2,1 Digital video data inputs 27MHz input clock PADDR Address enable line XTAL_IN Subcarrier crystal input XTAL_OUT 14 Subcarrier crystal input HSYNC/CB Active low horizontal sync, or composite blank signal VSYNC Active low vertical sync FIELD/CB Video field ID.

  • Page 10: Dvd Processor Chip (Mt1369Ae)

    GNDA 35,42,45 Ground 2-1-3 DVD Processor Chip (MTK1369AE) Features Single-chip DVD video decoder in a 208-pin PQFP package Supports MPEG-1 system and MPEG-2 program streams Programmable multimedia processor architecture Compatible with Audio CD, Video CD, VCD 3.0, and Super Video CD (SVCD) DVD Navigation 1 Built-in content Scrambling System (CSS) - Audio...
  • Page 11 Pinout Diagram...
  • Page 13 PIN DESCRIPTON Symbol Type Description Current reference input.it generate reference current for data PLL IREF Analog Input Connect an external 100K resistor to this pin and PLLVSS. PLLVSS Ground Ground for data PLL and related analog circuitry LPIOP Analog output Positive output of the low pass filter LPION Analog output...
  • Page 14 Symbol Type Description Inout,pull up Microcontroller address latch enable IOOE# Inout Flash output enable,active low /GPIO13 IOWR# Inout Flash write enable,active low /GPIO17 IOCS# Inout,pull up Flash chip select,active low /GPIO18 DVSS Ground Ground UP1_2 Inout,pull up Microcontroller port 1-2 UP1_3 Inout,pull up Microcontroller port 1-3...
  • Page 15 Symbol Type Description Output DRAM address 6 Output DRAM address 5 Output DRAM address 4 DVSS Ground Ground DQM1 Output Mask for DRAM input/output byte 1 DQM0 Output Mask for DRAM input/output byte 0 Output DRAM bank address 0 RA10 Output DRAM address 10 DVDD2...
  • Page 16 Symbol Type Description YUV7 Output Video data output bit 7 Input,pull down Microcontroller ICE mode enable PRST Input,pull down Power on reset input, active high DVSS Ground Ground VFO13 Output The 1 VFO pulse output of DVD-RAM ID header IDGATE Output DVD-RAM ID header detect signal output DVDD3...
  • Page 17 . Versatile on-line AGC. . 3 beams tracking error signal generator for CD_ROM application. . One beam differential phase tracking error (DPD) generator for DVD_ROM application. . Differential push pull tracking error (DPP) generator for DVD_RAM application. . Focusing error signal generator for CD-ROM, DVD-ROM and DVD-RAM (DAD method). .
  • Page 18 DVDA Analog input AC coupled DVD RF signal input A DVDB Analog input AC coupled DVD RF signal input B DVDC Analog input AC coupled DVD RF signal input C DVDD Analog input AC coupled DVD RF signal input D DVDRFIN Analog input AC coupled DVD RF signal input RFIN...

  • Page 19: 8-Pin, 24-Bit, 96Khz Stereo D/A Converter (Wm8720)

    AVDD Power RF path Power AGND RF path GND SVDD Power Servo Power SGND Servo GND 2,120 WAVDD Power Wobble Power 128,118 WAGND Wobble GND AVDDO Power Power for RF output AGNDO GND for RF output AVDDT Power Power for trimming PAD AGNDT GND for trimming PAD VDDP...
  • Page 20 ♦ Input data word: 16 to 24-bit ♦ Hardware or SPI compatible serial port control modes: -Hardware mode:system clock, reset, mute, de-emphasis -Serial control mode: mute, de-emphasis, digital attenuation(256 steps), zero mute, phase reversal, power down ♦ Compatible with PCM1720 Description The WM820 is a high performance stereo DAC designed for audio applications such as CD, DVD,...
  • Page 21 BLOCK DIAGRAM PIN DESCRIPTIONS NAME TYPE DESCRIPTION PWDN Digital input Powerdown control; low is ON, high is POWER OFF, Interal pull-down. SCKI Digital input System clock input(256 or 384fs). TEST Digital output Reserved. ML/I2S Digital input Latch enable (software mode) or input format selection (hardware mode) Internal pull-up.

  • Page 22: Serial Eeprom, 2K (256 X 8) (24C16,St-S08)

    Digital input pins have Schmitt trigger input buffers. 2-1-5 Serial EEPROM, 2K (256 x 8) (24C16) * Features Low-Voltage and Standard-Voltage Operation -5.0 (V CC = 4.5V to 5.5V) -2.7 (V CC = 2.7V to 5.5V) -2.5 (V CC = 2.5V to 5.5V) -1.8 (V CC = 1.8V to 5.5V) Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K), 1024 x 8 (8K) or 2048 x 8 (16K) 2-Wire Serial Interface...
  • Page 23 tion opera • Fast access time: 70/90/120ns • Low power consumption - 50mA maximum active current - 0.2uA typical standby current • Command register architecture - Byte/word Programming (7us/12us typical) - Sector Erase (Sector structure 16K-Bytex1, 8K-Bytex2, 32K-Bytex1, and 64K-Byte x15) •...

  • Page 25: 512K X 16 Bit X 2 Banks Synchronous Dram (A43L0616)

    2-1-7 512K X 16 Bit X 2 Banks Synchronous DRAM (A43L0616) Features JEDEC standard 3.3V power supply LVTTL compatible with multiplexed address Dual banks / Pulse RAS MRS cycle with address key programs CAS Latency (2,3) Burst Length (1,2,4,8 & full page) Burst Type (Sequential &...

  • Page 27: Selecting The Desired Dvd Menu Item

    Block Diagram Pin Descriptions Symbol Name Description System Clock Active on the positive going edge to sample all inputs Chip Select Disables or Enables device operation by masking or enabling all inputs except CLK, CKE and L(U)DQM Masks system clock to freeze operation from the next clock cycle. Clock Enable CKE should be enabled at least one clock + tss prior to new command.

  • Page 28: Product Specifications

    Symbol Name Description Makes data output Hi-Z, t SHZ after the clock and masks the output. L(U)DQM Data Input/Output Mask Blocks data input when L(U)DQM active. DW0-15 Data Input/Output Data inputs/outputs are multiplexed on the same pins. VDD/VSS Power Supply/Ground Power Supply: +3.3V±0.3V/Ground Data Output VDDQ/VSSQ...

  • Page 29: Selecting The Desired Mp3 Title

    5. Disassembly and Reassembly...

  • Page 30: Searching

    6. Troubleshooting No power Insert the AC power plug securely into the power outlet. Make sure that the equipment is connected properly. No picture Make sure that the input setting for TV is Video (AV). No sound Make sure that the equipment is connected properly. Distorted sound Make sure that the input settings for the TV and stereo system are correct.

  • Page 31: Resume Play

    7. Electrical Part List CO-01 PRODUCT DESIGN PACKAGE LIST Name Counts Blueprint No. Material No. Notes CO-01 surface subassembly SANYO HD60 loader Two-channel decoding sub- CO-DJA1369XE+SANYO with microphone and s-video output assembly for CO-01 DVD CO-DPA118 subassembly CO-DPA118 Interface subassembly of SCART CO-01 motherboard CO-DZCO-01 silver-gray, use electrolyzed iron...
  • Page 32 Name Counts Blueprint No. Material No. Notes rubber mat thickness 2mm diameter 12mm VCD rubber mat thickness 19.5mm diameter 9.5mm Remote controller-V1 environment-protecting battery battery ENGLISH Unit: 05*80*260mm with PE bag for remote controller environment-protecting mark English manual unit: 05*80*260mm with PE bag for manual environment-protecting mark foam...

  • Page 33: Selecting Subtitle Language

    Name Counts Blueprint No. Material No. Notes acute-headed nail BA3*8 colorful for coaxial output zinc 1.5mm SCART wire with two terminals 40-pins video two-terminator yellow wire linear figure,black 1.5mm audio four-terminator red-white linear figure,black 1.5mm bar code provided by client provided by client assembly line number safety sticker...

  • Page 34: Selecting Angle

    The list for cover subassembly design of CO-01 Name Counts Blueprint No. Material No. Notes trademark MODELL :DDV2140(DDV2141. silk-screen file No.: DVD6722M.DVD5000.DVD412 CO-01 .fl d402)panel silver CO-01 power-supply button CO-01 silver CO-01 knob CO-01 silver number button CO-01 silver fast forward button CO-01 silver pause button...
  • Page 35 Name/Specification Counts Position in the paper Material No. Notes resistor resistor 10E 1/4W R1,R9 resistor 220E 1/4W R11,R12 resistor 10K 1/4W R7,R6,R3,R2,R4,R8,R10 resistor 56K 1/4W porcelain capacitor porcelain capacitor 104 50V diameter: 5mm electrolyzed capacitor electrolyzed capacitor47 uF 16V C1,C2 diameter:5mm Diode diode IN4148...
  • Page 36 Name/Specification Counts Position in the paper Material No. Notes iron thread 10mm J1,J5 diameter: 0.6mm iron thread 12mm JMP1 diameter: 0.6mm...

  • Page 37: Block Diagram

    8. Block Diagram...

  • Page 38: Circuit Diagrams

    9. Circuit Diagrams 1.Control Part INDEX 3.SERVO&RF 4.MEMORY 5.Audio&Video D/A 6.AV PORT 7.Power Part Wiring Diagram...
  • Page 39 1.Control Part 100uF/16V Sg14/Gr9 Sg13/Gr10 Sg12/Gr11 Sg11 Sg10 DOUT 6PIN 6312 Sg6/KS6 Sg5/KS5 Sg4/KS4 LED4 Sg3/KS3 LED3 Sg2/KS2 LED2 Sg1/KS1 LED1 COSMIC P 4148 4148 4148 4148 4148 DP6312 DATA R1(OPEN) R2(OPEN) -27V 4PIN 47uF/50V LED(OPEN) LED(OPEN) -27V COMPANY TITLE COSMIC C O - D C A C O - 0 1 FILE...
  • Page 40 INDEX HD60_C001 INDEX & POWER, RESET RF / SERVO & MPEG - MT1336E / MT1369E MEMORY - SDRAM, FLASH/EEPROM AUDIO - WM8720&WM8746, VIDEO - CS4954/55 AV FILTER. NAME TYPE DEVICE NAME TYPE Digital 5V SUPPLY Digital Ground RVCC Servo 5V MT1336E SGND Servo Analog Ground...
  • Page 41 3.SERVO&RF TRCLOSE MT1336E/MT1369E with TROPEN AVCC ENDM 100K 0.1u STBY SANYO HD60 PUH [ 1,3,4,5 ] RVCC RVCC [ 1 ] AVCC AVCC [ 1 ] 3904 100K [ 1,3,4 ] AV33 AV33 [ 1 ] 2SK3018 [ 1 ] Very Important RVCC DV33...
  • Page 42 4.MEMORY RDQ0 RDQ1 RDQ2 RDQ3 RDQ16 DMA0 RDQ0 DMA0 RDQ0 DMA0 RDQ4 RDQ17 DMA1 RDQ1 DMA1 RDQ1 DMA1 RDQ5 RDQ18 DMA2 RDQ2 DMA2 RDQ2 DMA2 RDQ6 RDQ19 DMA3 RDQ3 DMA3 RDQ3 DMA3 RDQ7 DMA4 RDQ4 DMA4 RDQ4 DMA4 RDQ20 RDQ8 RDQ21 DMA5 RDQ5...
  • Page 43 5.Audio&Video D/A [ 1,2,3,5 ] DV33 [ 1,2,3 ] DV33 T_R/V T_R/V [ 5 ] +P5V [ 1,2,3,5 ] +P5V T_G/Y T_G/Y [ 5 ] [ 1,2,3,5 ] T_B/U T_B/U [ 5 ] A_DVDD T_SY T_SY [ 5 ] +P12V [ 1,5 ] +P12V -P12V...
  • Page 44 6.AV PORT [ 1,2,3,4 ] -P12V C105 [ 1 ] -P12V +P12V [ 1 ] +P12V +12V R86 100 CB72 0.1u [ 4 ] +12V MIC_IN +5VVB +5VVB ASPDIF COAXIAL 3906 -12V [ 4 ] -12V C109 C100 -12V SPDIF [ 1,2,3,4 ] 330p 220p...
  • Page 45 7.Power Part -21V DGND DGND -21V 220UF/16V F(-) F(+) 100P BCN502 POW SW1 D1 1N4007 222M 103/1KV 27K/2W HER105 T1.6A L250V 220V AC80~265V BCN1 D2 1N4007 68uF/450v S+5V 222M BEAD SGND SGND 1N4007 SGND SGND 100uF/50v PH-33D C12V S+12V 470uF/16V HER108 100P 0.1uF/275v...

  • Page 46: Wiring Diagram

    Wiring Diagram CO-01(DDV2141.DVD6722M.DVD5000.DVD412) WIRING DIAGRAM CrOut YOut AC100V~AC255V input Coaxial digital signal output LOut ROut CbOut VIDEO OUT SCART OUTPUT ASPECT S-VIDEO OUT RGB/CVBS# BCN501 CVBS_ST SCART_P11 BCN502 ASPECT RGB/CVBS# CVBS_ST MIC1 SCART_P11 MIC2 AGND +12V -12V DGND POWER BOARD AGND MTK SERVO+MPEG BOARD DGND...

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Dv-p3570sDv-p3470skDv-p3570skDv-p3570dsDv-p3570dskDv-p3570dpsk

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