BBK ABS730X Service Manual
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BBK ABS730X Service Manual

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SERVICE MANUAL
ABS730X

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Summary of Contents for BBK ABS730X

  • Page 1 SERVICE MANUAL ABS730X...

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS PREVENTION OF ELECTRO STATIC DISCHARGE(ESD)TO ELECTROSTATICALLY SENSITIVE(ES)DEVICES CONTROL BUTTON LOCATIONS AND EXPLANATIONS PREVERTION OF STATIC ELECTRICITY DISCHARGE ASSEMBLING AND DISASSEMBLING THE MECHANISM UNIT OPTICAL PICKUP UNIT EXPLOSED VIEW AND PART LIST MISCELLANEOUS ELECTRICAL CONFIRMATION VIDEO OUTPUT (LUMINANCE SIGNAL) CONFIRMATION VIDEO OUTPUT(CHROMINANCE SIGNAL) CONFIRMATION AML3298 SCHEMATIC &...

  • Page 3: Safety Precautions

    1. SAFETY PREAUTIONS 1.1 GENERAL GUIDELINES 1. When servicing, observe the original lead dress. if a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, see to it that all the protective devices such as insulation barrier, insulation papers shields are properly installed.

  • Page 4: Control Button Locations And Explanations

    Control Button Locations and Explanations Front Panel Illustration 1 Rear panel illustration BAND switch Echo button EQ button TUNING+ - SF button Headphone jack SAVE button Audio in 1 TIMER button TUNER button MIC 1 jack CLOCK button SKIP knob IR sensor MIC 2 jack DVD button...
  • Page 5 4.PREVENTION OF STATIC ELECTRICITY DISCHARGE The laser diode in the traverse unit (optical pickup)may brake down due to static electricity of clothes or human body. Use due caution to electrostatic breakdown when servicing and handling the laser diode. 4.1.Grounding for electrostatic breakdown prevention Some devices such as the DVD player use the optical pickup(laser diode)and the optical pickup will be damaged by static electricity in the working environment.Proceed servicing works under the working environment where grounding works is completed.

  • Page 6: Assembling And Disassembling The Mechanism Unit

    5. Assembling and disassembling the mechanism unit 5.1 Optical pickup unit explosed view and partlist 1 Upper cover 18 Volume knob 35 Cover for ventilation of heat radiator 2 Power amplifier PCB 19 Light conduct ring 36 Power cord 3 Left bracket of heat radiator 20 Power button 37 Rear board 4 Backing plate...

  • Page 7: Miscellaneous

    5.2 MISCELLANEOUS 5.2.1 Protection of the LD(Laser diode) Short the parts of LD circuit pattern by soldering. 5.2.2 Cautions on assembly and adjustment Make sure that the workbenches,jigs,tips,tips of soldering irons and measuring instruments are grounded,and that personnel wear wrist straps for ground. Open the LD short lands quickly with a soldering iron after a circuit is connected.

  • Page 8: Electrical Confirmation

    6.Electrical Confirmation 6.1. Video Output (Luminance Signal) Confirmation DO this confirmation after replacing a P.C.B. Measurement point Mode Disc Color bar 75% DVDT-S15 Video output terminal PLAY(Title 46):DVDT-S15 PLAY(Title 12):DVDT-S01 DVDT-S01 Measuring equipment,tools Confirmation value 200mV/dir,10 sec/dir 1000mVp-p±30mV Purpose:To maintain video signal output compatibility. 1.Connect the oscilloscope to the video output terminal and terminate at 75 ohms.

  • Page 9: Video Output(Chrominance Signal) Confirmation

    6.2 Video Output(Chrominance Signal) Confirmation Do the confirmation after replacing P.C.B. Measurement point Mode Disc Color bar 75% DVDT-S15 Video output terminal PLAY(Title 46):DVDT-S15 PLAY(Title 12):DVDT-S01 DVDT-S01 Measuring equipment,tools Confirmation value Screwdriver,Oscilloscope 200mV/dir,10 sec/dir 621mVp-p±30mV Purpose:To maintain video signal output compatibility. 1.Connect the oscilloscope to the video output terminal and terminate at 75 ohme.
  • Page 10 AML3298 1 Overview The AML3298 A/V processor is a completely integrated system targeting all types of Audio/Video decoder applications that provide connectivity to hard disk, digital camera, MP3 players and other external digital consumer devices. The target market for AML3298 A/V processor is feature rich DVD players, audio receivers, DVD/receiver combo players, digital media players, portable DVD players, and portable media players.
  • Page 11 2 Features MPEG 1/2/4 Decoding Built-in TV encoder MPEG-4 and Divx 3.x/4.x/5.x complaint Quad 10-bit video DACs MPEG-2 ML/MP conforming to ISO-13818 Real-time Interlaced NTSC output 720x480 at 30 fps and MPEG-1 ML/MP conforming to ISO-11172 PAL 720x576 at 25 fps. Macrovision 7.1L1 anti-taping On-chip CSS descrambler process Flexible DRM engine for content management...
  • Page 12 AML3298 A/V Connectivity Processor 3 AML3298 – 208 Pin Package Diagram ADATA AVSS ADATA AVDD _3.3 ALRCLK _3.3 _3.3 AMCLK _3.3 _1.8 _1.8 _3.3 1 (1.8 _1.8 IVDD 1 (1,8 _1.8 DIORDY (3.3 AVDD _3.3 (3.3 AVSS (3.3 AVDD (3.3 AVSS AML3298 (3.3...

  • Page 13: Schematic & Pcb Wiring Diagram

    8. SCHEMATIC & PCB WIRING DIAGRAM SCHEMATIC & PCB WIRING DIAGRAM FRONT SCHEMATIC DIAGRAM...
  • Page 14 FRONT SCHEMATIC DIAGRAM...
  • Page 15 OUTPUT BOARD SCHEMATIC DIAGRAM...
  • Page 16 OUTPUT BOARD SCHEMATIC DIAGRAM...
  • Page 17 MIAN SCHEMATIC DIAGRAM...
  • Page 24 MIAN SCHEMATIC DIAGRAM...
  • Page 25 POWER SCHEMATIC DIAGRAM...
  • Page 26 POWER SCHEMATIC DIAGRAM...
  • Page 27 UBSIDIARY POWER SCHEMATIC DIAGRAM...
  • Page 28 UBSIDIARY POWER SCHEMATIC DIAGRAM...
  • Page 29 SUBSIDIARY PANEL SCHEMATIC DIAGRAM...
  • Page 30 SUBSIDIARY PANEL SCHEMATIC DIAGRAM...
  • Page 31 OK BOARD SCHEMATIC DIAGRAM...
  • Page 32 OK BOARD SCHEMATIC DIAGRAM...
  • Page 33 POWER AMPLIFIER BOARD OF SUBWOOFER...
  • Page 36 POWER AMPLIFIER BOARD OF SUBWOOFER...

  • Page 37: Spare Parts List

    9. SPARE PARTS LIST ABS730X MATERIAL LIST 1. MAIN PANEL MATERIAL CODE MATERIAL NAME SPECIFICATIONS UNIT QUANTITY LOCATION 5233877 SOFT SPONGE SPACER 46×20×4 DOUBLE-FACED HARD 2PCS FOR VFD SCREEN 0090001 SMD RESISTOR 1/16W 0Ω ±5% 0603 R409 0000122 CARBON FILM RESISTOR 1/6W100Ω±5% SHAPED 7.5...
  • Page 38 0070007 HIGH VOLTAGE RESISTOR @1/2W680K±5% UL R106 8P300 2.0 2PLUG WITH NEEDLE THE 2121862 FLAT CABLE XS105 SAME DIRECTION ANTI-DISTURBANCE 0210204 @MKP61 X2 275VAC 104M 15 UL C102,C103 CAPACITOR 10P320 2.5 2PLUG WITH NEEDLE THE 2121863 FLAT CABLE XS101 SAME DIRECTION 0680045 SCHOTTKY DIODE SR360 DO-27 SHAPED R 17.5×8...
  • Page 39 0090224 SMD RESISTOR 1/16W 3.9K ±5% 0603 R627,R630,R634~R636 0090019 SMD RESISTOR 1/16W 4.7K ±5% 0603 R628,R622 0090225 SMD RESISTOR 1/16W 5.6K ±5% 0603 R616 R605,R606,R617,R620,R621,R 0090023 SMD RESISTOR 1/16W 10K ±5% 0603 624,R637,R638 0000040 SMD RESISTOR 1/6W10K±5% R612 0090024 SMD RESISTOR 1/16W 15K ±5% 0603 R614,R618 0090188...
  • Page 40 EXTERNAL CONNECTION 1990036 WP4-5 JK203 CORD SOCKET 1850005 DUAL LINE IC SOCKET 40P DIP U204 PCB SEMI-FINISHED 5446825 A538-0 ABS730X(RU) AI PRODUCT 7. AV BOARD MATERIAL CODE MATERIAL NAME SPECIFICATIONS UNIT QUANTITY LOCATION 0090001 SMD RESISTOR 1/16W 0Ω ±5% 0603...
  • Page 41 90011 SMD RESISTOR 1/16W 470Ω ±5% 0603 R233,R234 R271,R272,R273,R274,R287,R 0090014 SMD RESISTOR 1/16W 1K ±5% 0603 290,R2117,R2120,R292,R254,R 0090016 SMD RESISTOR 1/16W 1.5K ±5% 0603 R228,R230,R231,R239 0090223 SMD RESISTOR 1/16W 2K ±5% 0603 R211,R212,R315 0090017 SMD RESISTOR 1/16W 2.2K ±5% 0603 R242,R244,R246 R360~R362,R373~R376,R229, R240,R289,R293,R294,R314,R...
  • Page 42 C202~C204,C210,C228,C262,C 265~C268,C273,C277,C281,C2 0310066 SMD CAPACITOR 50V 102 ±10% X7R 0603 82,C284,C293,C295,C297,C299 ,C302,C349~C351,C359~C361 0310231 SMD CAPACITOR 50V 122 ±10% X7R 0603 C2122,C2129,C2112,C2115 310070 SMD CAPACITOR 50V 332 ±10% X7R 0603 C213,C214,C234,C303 0310323 SMD CAPACITOR 50V 392 ±10% X7R 0603 C227 0310200 SMD CAPACITOR 50V 822 ±10% X7R 0603 C314,C315...
  • Page 43 882262 K4S641632H-TC60 TSOP U205,U208 881674 LM393D SO8 U222 882105 LM393 SO8 U222 882359 AAI393 SO8 U222 880300 M11B416256A-25 SOJ U215 882502 MK-6000B(4504) PQFP U209 881742 F4558 SOP U219 880562 4580 SOP U219 880361 4558 SOP U219 880322 MM74HCU04M SOP U214 880513 HCU04 SOP U214...

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