C O N T E N T S S AF E T Y P R EC AUT IONS P R E V E NT ION OF E LE C T R O S TATIC DIS C HAR G E (E S D)TO E LE C T R OS TATIC ALLY S E NS IT IV E (E S )DE V IC E S C ONT R OL B UT T ON LOC AT IONS AND E XP LANAT IONS P R E V E R TION OF S TATIC E LE C T R IC IT Y DIS C HAR G E...
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.
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.
5.Electrical Confirmation 5.1. 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.
5.2 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.
7.2 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.
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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...
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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)
IC BLOCK DIAGRAM & DESCRIPTION HY29LV160 16 Mbit (2M x 8/1M x 16) Low Voltage Flash Memory KEY FEATURES Single Power Supply Operation 100,000 Write Cycles per Sector Minimum – Read, program and erase operations from Data# Polling and Toggle Bits 2.7 to 3.6 volts –...
IC BLOCK DIAGRAM & DESCRIPTION HY29LV160 BLOCK DIAGRAM DQ[15:0] A[19:0], A-1 STATE C O N T R O L ERASE VOLTAGE I/O BUFFERS G E N E R A T O R A N D DQ[15:0] S E C T O R S W I T C H E S C O M M A N D W E # REGISTER...
HY57V641620HG 4 Banks x 1M x 16Bit Synchronous DRAM 7.4 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.
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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...
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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...
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9.DVDPX-I80S MATERIAL DL3103DC MATERIAL LIST LIST 1. CAR ADAPTER MATERIAL COD MATERIAL NAME SPECIFICATIONS UNIT UANTI LOCATION 1/2W0.1Ω±5% SHAPED VERTICAL 10303 METAL OXIDE FILM RESISTOR R1,R7 0090286 SMD RESISTOR 1/16W62Ω±5% 0603 0090181 SMD RESISTOR 1/16W 100Ω ±5% 0603 0090017 SMD RESISTOR 1/16W 2.2K ±5% 0603...
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0881535 S8232 SOP 1860067 POWER CONNECTOR 4P 2.5mm DC-C10399 1631816 B3103-0 1. MAIN PANEL MATERIAL COD MATERIAL NAME SPECIFICATIONS UNIT UANTI LOCATION 0090001 SMD RESISTOR 1/16W 0Ω ±5% 0603 R403 0310048 SMD CAPACITOR 50V 151 ±5% NPO 0603 C402,C403 0310084 SMD CAPACITOR 50V 104 +80%-20% 0603 C401...
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