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Akai A-4191 Service Manual
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Akai A-4191 Service Manual

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DVD PLAYER

Models:
A4162
A4191

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Summary of Contents for Akai A-4191

  • Page 1: Dvd Player

    DVD PLAYER Models: A4162 A4191...
  • Page 2 SERVICE MANUAL 1. The System Block Diagram&the Block’s Function Description 2. Schematic Circuit Diagram 3. Critical Components List 4. IC Date Sheet&IC Description 5. Service Tools and Equipment...
  • Page 3 1. The System Block Diagram & the Block’s Function Description DVD System Block LOADER LN9815H2 HITICHI 1200 AC to DC POWER BOARD (TEA1521P) DECODE BOARD MTK1389E CONTROL BOARD HD6928+GT60241...
  • Page 4 AKIN1 [1,2,4] AKIN1 AKIN2 AKIN2 DV33 [1,2,3] DV33 LSCH LSCH 100pF RSCH [1,2,3,4] RSCH CENT CENT -12V ACENTER CENTER1 LSUR1 R104 ACENTER 10uF/16v R103 5.1k U12A R107 ACENTER ASUBW LMAIN1 RSUR1 10uF/16v ASUBW MUTE_DAC RSCH MUTE_DAC RMAIN1 RSUR1 NJM4558 OPA A_MUTE MUTE_O 1000pF...
  • Page 5 COAXIAL [1,2,5] [1,2,3,5] CVBS CVBS ASPDIF ASPDIF LSCH LSCH RSCH RSCH CENT CENT RCA-AV6 RGB_SWITCH RGB_SWITCH Modify3 Value $%&'()*+,-./012 +5VV +5VV 1N4148 75,1% 0/NC 3906 +5VV L27 1.8uH +5VV 1N4148 150,1% C100 C101 +5VV 10uH +5VV ASPECT 0.1uF 47uF/16v 3906 RGB/CVBS# SCART_CVBSO 1N4148...
  • Page 6 [1,2,5] DV33 DV33 [1,2,4,5] DV33 SD33 DQ[0..15] DQ[0..15] L29 FB DRAM SD33 MA[0..11] MA[0..11] BA[0..1] BA[0..1] DQM[0..1] DQM[0..1] + CE25 CB37 CB38 CB39 CB40 CB41 AD[0..7] AD[0..7] DCLK DCLK FLASH DCKE DCKE 47uF/16v 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF CAS# CAS# RAS# RAS# [2,3]...
  • Page 7 JITFO 390pF JITFN DV33 RFV33 RFVDD3 SD33 RFV33 750k L30 10UH APLLVDD3 SD33 2200pF DACVDD3 0.1uF/NC CB10 CE12 680k ADIN DV33 0.1uF 0.01uF 2200pF CB11 + CE13 100uF/16v 0.1uF DC100B CB12 0.1uF 47uF/16v 10uF/6.3v 4.7uF/10v 1500pF 4.7uF/10v 0.1uF 150k 150k PLLVDD3 680k 2200pF...
  • Page 8 COMMON1389E_HD60_V3 MT1389E (LQFP216) DVD MP Board for SANYO HD60 PUH History Date INDEX & POWER, RESET Initial released. Modified from 3-SY1389DP1-V11 2005.01.19 MT1389E Add SCART and VGA output 2005.03.01 SDRAM & FLASH Modify Video backend circuit. 2005.03.09 VIDEO OUT & AV-CON AUDIO OUT - WM8766 NAME TYPE...
  • Page 11 3.Critical Components List Singing Appellation S29AL008070TF102 V36V1616100TC-7 D5888S MT1389DE-E TEA1521P HD6928 DISPLAY GT-60241...

  • Page 12: Pin Assignment

    4. IC Date Sheet & IC Description MT1389E Version 1.5 Pin Assignment Specifications are subject to change without notice Abbreviations: SR: Slew Rate PU: Pull Up PD: Pull Down SMT: Schmitt Trigger 4mA~16mA: Output buffer driving strength. Main Alt. Type Description RF Interface (26) RFGND18...
  • Page 13 MTK Confidential A MT1389E PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Main Alt. Type Description MDI2 Analog Input Laser power monitor input LDO2 Analog Output Laser driver output LDO1 Analog Output Laser driver output Reference Voltage (3) V2REFO Analog output Reference voltage 2.8V...
  • Page 14 MTK Confidential A MT1389E PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Main Alt. Type Description OP_OUT Analog output Op amp output OP_INN Analog input Op amp negative input OP_INP Analog input Op amp positive input Analog Output Disk motor control output.
  • Page 15 MTK Confidential A MT1389E PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Main Alt. Type Description InOut HIGHA7 4~16mA, SR Microcontroller address 15 InOut Microcontroller address/data 7 4~16mA, SR InOut Microcontroller address/data 6 4~16mA, SR InOut Microcontroller address/data 5 4~16mA, SR InOut Microcontroller address/data 4...
  • Page 16 MTK Confidential A MT1389E PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Main Alt. Type Description Output 4~16mA, SR Flash address 17 InOut IOA18 4~16mA, SR Flash address 18 / IO PD, SMT InOut IOA19 4~16mA, SR Flash address 19 / IO PD, SMT InOut Flash address 20 / IO...
  • Page 17 MTK Confidential A MT1389E PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Main Alt. Type Description InOut Microcontroller port 1-6 UP1_6 4mA, SR C clock pin PU, SMT InOut Microcontroller port 1-7 UP1_7 4mA, SR C data pin PU, SMT InOut Microcontroller port 3-0...
  • Page 18 MTK Confidential A MT1389E PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Main Alt. Type Description Audio serial data 0 (Front-Left/Front-Right) Trap value in power-on reset: InOut I) 1: manufactory test mode YUV2 ASDATA0 II) 0: normal operation PD SMT While internal audio DAC used: I) Digital video YUV output 2...
  • Page 19 MTK Confidential A MT1389E PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Main Alt. Type Description Audio DAC right Surround channel output GPIO Output While internal audio DAC not used: GPIO Audio DAC right channel output While internal audio DAC not used: GPIO Output a.
  • Page 20 MTK Confidential A MT1389E PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Main Alt. Type Description XTALI Input 27MHz crystal input InOut General purpose IO 0 VSYN GPIO0 4mA, SR Vertical sync for video input YUV1 Digital video YUV output 1 General purpose IO 1 HSYN InOut...
  • Page 21 MTK Confidential A MT1389E PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Main Alt. Type Description Output CAS# DRAM column address strobe, active low Output RWE# DRAM Write enable, active low InOut DQM1 Data mask 1 InOut DRAM data 8 InOut DRAM data 9 InOut...
  • Page 22 Features ●0.24 inch(6.0mm)Digit Height ●Continuous uniform segments ●Low power requirement ●Excellent characters appearance ●Wide viewing angle ●Solid state reliability Description The GT-60241BGH-B is a 0.24 (6.0mm) digit height 6 digit seven-segment with several icons display. This device is multi-color applicable display,it uses HIGH-BRIGHT-GREEN/RED LED chipcs.
  • Page 23 PIN CONNECTION CONNECTION COMMON ANODE COM1 CATHODE F COMMON ANODE DIG1 CATHODE B COMMON ANODE DIG2 CATHODE C CATHODE E COMMON ANODE DIG3 CATHODE A CATHODE D COMMON ANODE DIG4 CATHODE G COMMON ANODE DIG5 COMMON ANODE DIG6 COMMON ANODE COM2...
  • Page 24 SIZE: 51.5mm×15.5mm×8.0mm Absolute Maximum Ratings Parameter Symbol Ratings Peak For ward current per Dice 100mA (Duty cycle 1/10.10KHZ) Continuous Forward current per Dice 25 mA Reverse Voltage Operating Temperature Topr -25to+85℃ Storage temperature Tstg -25to+85℃ Soldering Temperature: 260℃ 1/16Inch below seating place for 5 seconds Electro-Optical Characteristics: --RED Parameter...
  • Page 25 2. Schematic Circuit Diagram SIZE: 51.5mm 15.5mm 8.0mm Package Dimension (Unit:mm Tolerance: 0.2mm) Internal Circuit Diagram...
  • Page 26 5.Service T ools and Equipment 5.1Service Tools and Equipment T able Application Name General DVD Testing Disc GeneralTools (screwdriver etc.) Confirm CD Testing Disc VCD Testing Disc Adjust Decode Amplifier Speaker AV Cables TV Monitor Grounding for electrostatic Searing-iron breakdown Antistatic wrist strap Conductive material steel sheet 5.2 S t oring and Handling Test Discs...
  • Page 27 3. Do not place the disc on a glass surf ace. It may damage the disc. If this happened, please use a new testing disc adjust DVD player precision. 5 .3 No t es PLEASE READ ALL NOTES GIVEN IN THIS MANUAL. ■...
  • Page 28 personal injury or death. This unit should be situated away from heat source, such as amplifiers, radiators, stoves or any other units producing heat. Condensation Lens could be moistening in these cases. Turn on heater shortly, In a very wet room, Move the player from a cold environment to a heat environment quickly.

This manual is also suitable for:

A-4162