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BBK ABS541T Service Manual

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SERVICE MANUAL
ABS541T

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Summary of Contents for BBK ABS541T

  • Page 1 SERVICE MANUAL ABS541T...

  • 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 MPEG BOARD CHECK WAVEFORM MT1389...

  • 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 Front panel illustration Display window IR sensor window Volume adjustment knob Tone adjustment knob Direction indicator to place disc Door Control Panel Illustration POWER button TUNING+ button NEXT button TUNING- button PREV button WAVE BAND button FUNCTION button PLAY/STOP button OPEN/CLOSE button Rear panel Illustration Power cord socket...

  • Page 5: Prevertion Of Static Electricity Discharge

    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...

  • Page 7: Optical Pickup Unit Explosed View And Part List

    OPTICAL PICKUP UNIT EXPLOSED VIEW AND PART LIST...

  • Page 10: 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 11: 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 12: 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 13: Mpeg Board Check Waveform

    7.MPEG BOARD CHECK WAVEFORM 7.1 27MHz WAVEFORM DIAGRAM 7.2 IC TEA1523 PIN.8 WAVEFORM DIAGRAM...

  • Page 14: Mt1389

    8.2 MT1389 MT1389 Progressive-Scan DVD Player SOC Specifications are subject to change without notice MediaTek MT1389 is a DVD player system-on-chip (SOC) which incorporates advanced features like high quality TV encoder and state-of-art de-interlace processing. The MT1389 enables consumer electronics manufacturers to build high quality, cost-effective DVD players, portable DVD players or any other home entertainment audio/video devices.
  • Page 15 MT1389 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE General Feature List 1024-bytes on-chip RAM Super Integration DVD player single chip Up to 4M bytes FLASH-programming interface High performance analog RF amplifier Supports 5/3.3-Volt. FLASH interface Servo controller and data channel processing Supports power-down mode MPEG-1/MPEG-2/JPEG video Supports additional serial port...
  • Page 16 MT1389 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Audio Effect Processing TV Encoder Dolby Digital (AC-3)/EX decoding Six 108MHz/12bit DACs DTS/DTS-ES decoding Support NTSC, PAL-BDGHINM, PAL-60 MLP decoding for DVD-Audio Support 525p, 625p progressive TV format MPEG-1 layer 1/layer 2 audio decoding Automatically turn off unconnected channels MPEG-2 layer1/layer2 2-channel audio Support PC monitor (VGA)

  • Page 17: Am29Lv160D

    8.3 Am29LV160D 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory DISTINCTIVE CHARACTERISTICS Single power supply operation Embedded Algorithms — Full voltage range: 2.7 to 3.6 volt read and write — Embedded Erase algorithm automatically operations for battery-powered applications preprograms and erases the entire chip or any combination of designated sectors...

  • Page 18: Block Diagram

    PRODUCT SELECTOR GUIDE Family Part Number Am29LV160D Speed Option Voltage Range: V = 2.7–3.6 V -120 Max access time, ns (t Max CE# access time, ns (t Max OE# access time, ns (t Note: See “AC Characteristics” for full specifications. BLOCK DIAGRAM –...
  • Page 19 CONNECTION DIAGRAMS BYTE# DQ15/A-1 DQ14 DQ13 DQ12 Standard TSOP RESET# DQ11 RY/BY# DQ10 BYTE# DQ15/A-1 DQ14 DQ13 DQ12 RESET# Reverse TSOP DQ11 RY/BY# DQ10...
  • Page 20 CONNECTION DIAGRAMS RESET# BYTE# DQ15/A-1 DQ14 DQ13 DQ10 DQ12 DQ11 FBGA Top View, Balls Facing Down BYTE# DQ15/A-1 DQ14 DQ13 RESET# DQ12 RY/BY# DQ10 DQ11 Special Handling Instructions Flash memory devices in FBGA packages may be damaged if exposed to ultrasonic cleaning methods. Special handling is required for Flash Memory products The package and/or data integrity may be compromised in FBGA packages.
  • Page 21 PIN CONFIGURATION LOGIC SYMBOL A0–A19 = 20 addresses DQ0–DQ14 = 15 data inputs/outputs A0–A19 16 or 8 DQ15/A-1 = DQ15 (data input/output, word mode), DQ0–DQ15 A-1 (LSB address input, byte mode) (A-1) BYTE# = Selects 8-bit or 16-bit mode = Chip enable = Output enable = Write enable RESET#...

  • Page 22: Hy57V641620Hg

    HY57V641620HG 4 Banks x 1M x 16Bit Synchronous DRAM 8.4 HY57V641620HG DESCRIPTION The Hyundai HY57V641620HG is a 67,108,864-bit CMOS Synchronous DRAM, ideally suited for the main memory applications which require large memory density and high bandwidth. HY57V641620HG is organized as 4banks of 1,048,576x16. HY57V641620HG is offering fully synchronous operation referenced to a positive edge of the clock.
  • Page 23 HY57V641620HG PIN CONFIGURATION DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 54pin TSOP II 400mil x 875mil 0.8mm pin pitch LDQM UDQM /CAS /RAS A10/AP PIN DESCRIPTION PIN NAME DESCRIPTION The system clock input. All other inputs are registered to the SDRAM on the Clock rising edge of CLK Controls internal clock signal and when deactivated, the SDRAM will be one...
  • Page 24 HY57V641620HG FUNCTIONAL BLOCK DIAGRAM 1Mbit x 4banks x 16 I/O Synchronous DRAM Self refresh logic Internal Row & timer counter 1Mx16 Bank 3 1Mx16 Bank 2 Row active Decoders 1Mx16 Bank 1 1Mx16 Bank 0 Memory refresh Cell Array Column Column Active UDQM...

  • Page 25: Schematic & Pcb Wiring Diagram

    9. SCHEMATIC & PCB WIRING DIAGRAM SCHEMATIC & PCB WIRING DIAGRAM FRONT SCHEMATIC DIAGRAM...
  • Page 27 OUTPUT BOARD SCHEMATIC DIAGRAM...
  • Page 28 OUTPUT BOARD SCHEMATIC DIAGRAM...
  • Page 29 MIAN SCHEMATIC DIAGRAM...
  • Page 30 MIAN SCHEMATIC DIAGRAM...
  • Page 31 MIAN SCHEMATIC DIAGRAM...
  • Page 32 MIAN SCHEMATIC DIAGRAM...
  • Page 33 SUBSIDIARY BOARD 按键板 XSA01 SWA01 SWA02 SWA03 SWA04 SWA06 SWA07 SWA08 XS07 ZDA01 CA01 ZDA02 CA02 ZDA03 CA03 ZDA04 CA04 5.1V 5.1V 5.1V 5.1V ZDA05 ZDA06 CA05 CA06 5.1V 5.1V...
  • Page 34 POWER BOARD SCHEMATIC DIAGRAM XT501 CON2 ~220 AC IN XT500 C501 L501 AC275V103 C500 JLB2081 XT502 CON2 FL500 SWITCH AC400V-10000pF T2AL 250V CON2...
  • Page 35 POWER BOARD SCHEMATIC DIAGRAM...
  • Page 36 I/O board...
  • Page 37 I/O board...
  • Page 38 Amplifier board...
  • Page 39 Amplifier board...

  • Page 43: Spare Parts List

    10. SPARE PARTS LIST ABS541T MATERIAL LIST 1. MAIN PANEL MATERIAL CODE MATERIAL NAME SPECIFICATIONS UNITUANTIT LOCATION CARBON FILM RESISTOR 1/6W100Ω±5% R407 0260201 CD11C 16V100U±20%6×7 2.5 TC401,TC402,TC407 3B 3SW WHITE WITH BLUE WIDE 0620162 LIGHT RADIATION DIODE LED401,LED402 VIEW ANGLE...
  • Page 44 1910198 TERMINAL SOCKET AV4-8.4-13/PB-26 JK708 SA-001-012 BLACK IRON PIECE 1910129 TERMINAL SOCKET JK703 SCREEN-SHIELDED 1910192 TERMINAL SOCKET DSW-35 JK706 1860029 SCART SOCKET SCART-01 JK704 15P 1.0mm STRAIGHT DUAL LINE 1940193 CABLE SOCKET XS701 PLUG TOUCH POINT 1980048 MIC SOCKET ST-403-070-100 MIC701 1870030 POWER SOCKET...
  • Page 45 XT400 1940040 SOCKET 3P 3.96mm XT402 0410200 CHOKE COIL VERTICAL 10UH 4A 5mm L401,L402 5447296 PCB SEMI-FINISHED PRODUCT 4SW1000B-0 ABS541T AI 10. INPUT AND OUTPUT BOARD OF SUBWOOFER MATERIAL CODE MATERIAL NAME SPECIFICATIONS UNITUANTIT LOCATION 1910192 TERMINAL SOCKET DSW-35 X100 6P300 2.5 2PLUG 5P SCREEN-SHIELDED...
  • Page 46 C201~C204,C221,C240,C231,C 232,C268,C269,C272,C284,C28 0310234 SMD RESISTOR 16V 105 +80%-20% Y5V 0603 5,C209,C317,C318,C329,C330, C209,TC242,TC243 0310055 SMD CAPACITOR 16V 333 ±10% X7R 0603 C225 310056 SMD CAPACITOR 16V 473 ±10% X7R 0603 C219,C220 0310362 SMD CAPACITOR 16V 474 +80%-20% Y5V 0603 C218,C2106,C2117 0310085 SMD CAPACITOR 50V 20P ±5% NPO 0603 C222...
  • Page 47 0881031 24C02N SOP U202 0882758 PT2314A SOP U203 880322 MM74HCU04M SOP U205 0880513 HCU04 SOP U205 0881304 ZA3020 SO8 U206 882022 CS4340A SOP U207 881501 AMS1084CD TO-252 U208 0881182 LM1117MP-ADJ SOT-223 U209 0881969 IP1117-ADJ SOT-223 U209 0882461 AZ1117H-ADJ SOT-223 U209 0881415 HY57V641620HGT-7 TSOP U211...

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