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Akai DDV-805 Service Manual

Car multimedia centre
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Car Multimedia Centre
DDV 805

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Summary of Contents for Akai DDV-805

  • Page 1 Car Multimedia Centre DDV 805...

  • Page 2: Table Of Contents

    CONTENTS Page Disassembly Instructions ............................. 3 Disassembly Diagram............................4 Disassembly Instructions TV7020 ......................... 5 Disassembly Diagram TV7020 ........................6 Operation Check..............................7 Block Diagram ..............................8 Alignment Locations ............................9 Alignment Procedures ............................10 Printed Circuit Board............................11 Exploded View (Display)............................ 31 Exploded View Part List (Display)........................

  • Page 3: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS (UNIT) 1 Using the unlock key that came with the unit or a similar tool, unlock the Mounting Box and remove toward the rear of the unit. 2 Take out the Ring and remove two screws (A) from each side of the base then remove the Base. 3 Remove two screws (B) located on the Main Board left side of the side bracket.

  • Page 4: Disassembly Diagram

    DISASSEMBLY DIAGRAM (UNIT)

  • Page 5: Disassembly Instructions Tv7020

    DISASSEMBLY INSTRUCTIONS (TV7020) 1. Remove two screws (A) from each of the Top Cover then remove the Top Cover. 2. Remove four screws (B) from on the main board then remove the Bottom Cover and Main Board.

  • Page 6: Disassembly Diagram Tv7020

    DISASSEMBLY DIAGRAM (TV7020)

  • Page 7: Operation Check

    OPERATION CHECK GENERAL SPECIFICATIONS OF SIGNAL Standard frequency 98.1 MHz (87.5, 108.0 MHz) 1000 kHz (522, 1620 kHz) Signal output 1 mV 5 mV Modulation 400 Hz 30% MOD. FM Stereo 1 kHz 75 kHz DEV. 46% for L only or R only pilot level 8%.

  • Page 8: Block Diagram

    BLOCK DIAGRAM (UNIT)

  • Page 9: Alignment Locations

    ALIGNMENT LOCATIONS MITSUMI TUNER...

  • Page 10: Alignment Procedures

    ALIGNMENT PROCEDURES FM ADJUSTMENT Equipment Required AM IF/RF signal generator Solid-state voltmeter (SSVM) Regulated DC power supply 2-CH voltmeter Distortion meter FM Alignment Using FM Signal Generator Note: Press the radio power switch to on the radio. Signal generator output must be kept as low as possible to avoid overload and clipping.

  • Page 11: Printed Circuit Board

    PRINTED CIRCUIT BOARDS MAIN BOARD TOP VIEW...
  • Page 12 MAIN BOARD BOTTOM VIEW...
  • Page 13 KEY BOARD TOP VIEW...
  • Page 14 KEY BOARD BOTTOM VIEW...
  • Page 15 MOTOR CONTROL BOARD TOP VIEW...
  • Page 16 MOTOR CONTROL BOARD BOTTOM VIEW...
  • Page 17 REMOTE BOARD TOP VIEW...
  • Page 18 REMOTE BOARD BOTTOM VIEW...
  • Page 19 LCD BOARD TOP VIEW...
  • Page 20 LCD BOARD BOTTOM VIEW...
  • Page 21 SWITCH BOARD TOP VIEW...
  • Page 22 SWITCH BOARD BOTTOM VIEW...
  • Page 23 SERVO BOARD TOP VIEW...
  • Page 24 SERVO BOARD BOTTOM VIEW...
  • Page 25 RADIO BOARD TOP VIEW...
  • Page 26 RADIO BOARD BOTTOM VIEW...
  • Page 27 TV BOARD TOP VIEW...
  • Page 28 TV BOARD BOTTOM VIEW...
  • Page 29 DISPLAY BOARD TOP VIEW...
  • Page 30 DISPLAY BOARD BOTTOM VIEW...

  • Page 31: Exploded View (Display)

    EXPLODED VIEW DISPLAY...

  • Page 32: Exploded View Part List (Display)

    EXPLODED VIEW PARTS LIST DISPLAY Ref. No. Description RS Part No. Mfr’s Part No. DVD TOP COVER (S.N0000)DVD N/SD ROHS 5100-702032-31W LENS(N0000)ROHS 5300-702035-300 TFT TOUCH SIMULATE TD-746A BEITAI ROHS 2710-702060-720B TFT SHEET (CLEAR THK0.3MM) ROHS 4300-036902-000 DRIVER BOARD 1121-702021-5434 MONITOR BOTTOM ROHS 6100-702003-000 MONITOR REAR COVER W/O SD (N0000) ROHS 5110-702023-300...
  • Page 33 Ref. No. Description RS Part No. Mfr’s Part No. LOCK SPRING ROHS 3600-036907-01 RIGHT SLIDE LOCK ROHS 3900-036909-002 ROTATE SWITCH BKT ROHS 3900-036911-002 PCB Board 1121-702021-453 ROTATE SWITCH SPRING ROHS 3600-036908-000 ROTATE LEVER ROHS 5200-036943-00 E- RING ROHS 3500-0A1520-00 WASHER ROHS 3500-036904-00 LEFT/RIGHT ROTATE SPRING ROHS 3610-036901-00...

  • Page 34: Exploded View (Unit)

    EXPLODED VIEW UNIT...

  • Page 35: Exploded View Parts List (Unit)

    EXPLODED VIEW PARTS LIST UNIT Ref. No. Description RS Part No. Mfr’s Part No. Display RING (N0000) ROHS 5100-702022-300 DVD BASE DVD7020 N (S.N0000/WHITE)N/BT ROHS 5100-702031-32W DVD-THIN MECH DV-SC03-60(HPD-60)MECHALEADER ROHS 9410-C03600-000 TOP CABINET W/SPRING, WAY FOR TV/GPS 1.0MM ROHS 6110-702001-005 MAIN PCB PET SHEET ROHS 4300-702001-000 MAIN BOARD...
  • Page 36 Ref. No. Description RS Part No. Mfr’s Part No. SCREW M1.7X4 KH/ST ROHS 4000-001704-21 SCREW 2X3 CH/MS BLACK ROHS 4000-012003-09H SCREW 2.6X6 BH/MS ROHS 4000-002606-01 SCREW 2.6X4 KH/MS ROHS 4000-002604-02 SCREW 2.6X4 BH/MS ROHS 4000-002604-01 SCREW 2.6X14 BH/MS ROHS 4000-002614-01...

  • Page 37: Exploded View (Tv7021)

    EXPLODED VIEW TV7021...

  • Page 38: Exploded View Part List (Tv7021)

    EXPLODED VIEW PARTS LIST TV7021 Ref. No. Description RS Part No. Mfr’s Part No. TOP COVER A005 FOR DVD7020 (S.BLACK/WHITE) ROHS 3910-A00402-31W BOTTOM COVER (S.BLACK) ROHS 3900-A00401-300 PCB D/S TV1872 SECAM BOX MB 142×94×1.2MM 1121-702031-923 TV TUNER TDQ-3EV8 BG/71/F/708 XINFA ROHS 2900-007020-381X SCREW 2.6X4 PH/MS BLACK ROHS...

  • Page 39: Exploded View (Deck)

    EXPLODED VIEW (DECK)

  • Page 40: Exploded View Part List (Deck)

    EXPLODED VIEW PARTS LIST (DECK) Ref. No. Description Parts No. Q’ty SENSOR ST-23G SENSOR PCB SCREW CA/H 0” TT 2*3 COVER-UPPER SECC T1.0 LEVER DISC POM (F20-03) GUIDE UP POM (F20-03) BUSHING ROLLER POM (F20-03) ROLLER DISC SLICON SHAFT ROLLER SUS 303 PIN ROLLER SUM24L-NI (PLATE)
  • Page 41 EXPLODED VIEW PARTS LIST - CONTINUED (DECK) Ref. No. Description Parts No. Q’ty CLAMP DISC POM (F20-03) SECC T1.0 HOLD CLAMPER S/P CLAMPER SUS304WPB TURN TABLE FAE376 P01 BASE PU POM (F20-03) PIN SIDE (A) SUM24L-NI (PLATE) SCREW CA/H 0” M/S 1.7*2.5 PIN SIDE (B) SUM24L-NI (PLATE) DAMPER...

  • Page 42: Schematic Diagram

    SCHEMATIC DIAGRAM MAIN BOARD...
  • Page 43 SCHEMATIC DIAGRAM KEY BOARD...
  • Page 44 SCHEMATIC DIAGRAM RADIO BOARD...
  • Page 45 SCHEMATIC DIAGRAM MOTOR BOARD...
  • Page 46 SCHEMATIC DIAGRAM SERVO BOARD...
  • Page 47 SCHEMATIC DIAGRAM SERVO BOARD...
  • Page 48 SCHEMATIC DIAGRAM SERVO BOARD...
  • Page 49 SCHEMATIC DIAGRAM DISPLAY BOARD...
  • Page 50 SCHEMATIC DIAGRAM DISPLAY BOARD...
  • Page 51 SCHEMATIC DIAGRAM DISPLAY BOARD...
  • Page 52 SCHEMATIC DIAGRAM REMOTE BOARD...
  • Page 53 SCHEMATIC DIAGRAM TV BOX BOARD...

  • Page 54: Electrical Parts List

    ELECTRICAL PARTS LIST Ref. No. Part No. Description Q’ty PC BOARD ASSY, MAIN BOARD...
  • Page 55 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...
  • Page 56 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...
  • Page 57 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...
  • Page 58 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty PC BOARD ASSY, MAIN BOARD FM/AM TUNER SECTION...
  • Page 59 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty PC BOARD ASSY, KEY BOARD...
  • Page 60 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...
  • Page 61 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty PC BOARD ASSY, SDK/CD SERVO BOARD...
  • Page 62 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...
  • Page 63 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...
  • Page 64 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty PC BOARD ASSY, MOTOR BOARD...
  • Page 65 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty PC BOARD ASSY, FILTER BOARD...
  • Page 66 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...
  • Page 67 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...
  • Page 68 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty PC BOARD ASSY, REMOTE BOARD...
  • Page 69 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty PC BOARD ASSY, DISPLAY BOARD...
  • Page 70 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...
  • Page 71 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...
  • Page 72 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...
  • Page 73 ELECTRICAL PARTS LIST-CONTINUED Ref. No. Part No. Description Q’ty...

  • Page 74: Specifications

    SPECIFICATIONS T. H. D ..........................Less than 0.35% Signal to Noise Radio......................More than 60 dB Channel Separation......................More than 50 dB Frequency Response .........................20Hz-20kHz Stereo Separating (FM) ......................30 dB (at 1kHz) Signal to Noise Ratio (FM) ....................Better than 50 dB Output Power ...........................4 X 40W Speaker Output Impedance......................4 To 8 ohm Power Source.......................DC 12V, Negative ground.

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