1. PRECAUTIONS 1-1 Safety Precautions 1) Before returning an instrument to the customer, always and repeat the test. make a safety check of the entire instrument, including, but not limited to, the following items: (1) Be sure that no built-in protective devices are defective or have been defeated during servicing.
voltage, and (5) antenna wiring. Always inspect in all areas for pinched, out-of-place, or frayed wiring. Do not change spacing between a component and the printed-circuit board, Check the AC power cord for damage. 5) Components, parts, and/or wiring that appear to have overheated or that are otherwise damaged should be replaced with components, parts and/or wiring that Insulation Resistance Test...
(3) The components used in the unit have a specified flame been damaged and so on. Further, check the insulation resistance and dielectric strength. between the blades of the attachment plus and When replacing components, use components which accessible conductive parts. have the same ratings, by ( ) or by ( ) in the...
2-1-2 DVD Processor Chip (MTK1379) and Front-end IC MT1336 Features Single-chip DVD video decoder in a 208-pin PQFP package Supports MPEG-1 system and MPEG-2 program streams Programmable multimedia processor architecture Compatible with Audio CD, Video CD, VCD 3.0, and Super Video CD (SVCD) DVD Navigation 1 Built-in content Scrambling System (CSS) - Audio...
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PIN DESCRIPTON Symbol Type Description Current reference input.it generate reference current for data PLL IREF Analog Input Connect an external 100K resistor to this pin and PLLVSS. PLLVSS Ground Ground for data PLL and related analog circuitry LPIOP Analog output Positive output of the low pass filter LPION Analog output...
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Symbol Type Description APLLVDD3 Power 3.3V power Inout,pull up Microcontroller address latch enable IOOE# Inout Flash output enable,active low /GPIO13 IOWR# Inout Flash write enable,active low /GPIO17 IOCS# Inout,pull up Flash chip select,active low /GPIO18 DVSS Ground Ground UP1_2 Inout,pull up Microcontroller port 1-2 UP1_3 Inout,pull up...
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Symbol Type Description Output DRAM address 4 DVSS Ground Ground DQM1 Output Mask for DRAM input/output byte 1 DQM0 Output Mask for DRAM input/output byte 0 Output DRAM bank address 0 RA10 Output DRAM address 10 DVDD2 Power 2.5V power Output DRAM address 0 Output...
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Symbol Type Description YUV6 Output Video data output bit 6 Input,pull down Microcontroller ICE mode enable output VSYN Inout Vertical sync / GPIO16 YUV7 Output Video data output bit 7 DVSS Ground Ground HSYN Inout Horizontal sync / GPIO15 DVDD2 Power 2.5V power DVDD3...
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. Focusing error signal generator for CD-ROM, DVD-ROM and DVD-RAM (DAD method). . RF level signal generator. . Sub-beam added signal for 3 beams CD_ROM. . One beam push-pull signal generator for central servo application. . High speed RF envelop detection circuit with bandwidth up to 400KHz for CD-ROM. .
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DVDRFIP Analog input AC coupled DVD RF signal input RFIP Analog input AC coupled CD RF signal input A Analog input AC coupled CD RF signal input B Analog input AC coupled CD RF signal input C Analog input AC coupled CD RF signal input D Analog RF Offset cancellation capacitor connection Analog...
128,118 WAGND Wobble GND AVDDO Power Power for RF output AGNDO GND for RF output AVDDT Power Power for trimming PAD AGNDT GND for trimming PAD VDDP Power Peak Detection Power GNDP Peak Detection GND 37,54 Power Serial I/O Power 39,57 Serial I/O GND REFERENCE VOLTAGE...
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Features APPLICATIONS . CD, DVD audio . Home theare systems . Set top boxes PIN DESCRIPTIONS Note: Digital input pins have Schmitt trigger input buffers.
2-1-4 Serial EEPROM, 16K (2048 x 8) (24C16) * Features Low-Voltage and Standard-Voltage Operation -5.0 (V CC = 4.5V to 5.5V) -2.7 (V CC = 2.7V to 5.5V) -2.5 (V CC = 2.5V to 5.5V) -1.8 (V CC = 1.8V to 5.5V) Internally Organized 128 x 8 (1K), 256 x 8 (2K), 512 x 8 (4K), 1024 x 8 (8K) or 2048 x 8 (16K) 2-Wire Serial Interface Schmitt Trigger, Filtered Inputs for Noise Suppression...
Automotive Grade and Extended Temperature Devices Available 8-Pin and 14-Pin JEDEC SOIC, 8-Pin PDIP, 8-Pin MSOP, and 8-Pin TSSOP Packages Pin Configurations Pin Description Pin Name Function A0-A2 Address Inputs Serial Data Serial Clock input Write Protect No Connect 2-1-5 8M-BIT [1Mx8/512Kx16] CMOS FLASH MEMORY FEATURES •...
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• Sector protection - Sector protect/chip unprotect for 5V/12V system. - Hardware method to disable any combination of sectors from program or erase operations - Tempory sector unprotect allows code changes in previously locked sectors. • 100,000 minimum erase/program cycles •...
2-1-6 512K X 16 Bit X 2 Banks Synchronous DRAM (A43L0616) Features JEDEC standard 3.3V power supply LVTTL compatible with multiplexed address Dual banks / Pulse RAS MRS cycle with address key programs CAS Latency (2,3) Burst Length (1,2,4,8 & full page)
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Burst Type (Sequential & interleave) All inputs are sampled at the positive going edge of the system clock Burst Read Single-bit Write operation DQM for masking Auto & self refresh 64ms refresh period (4K cycle) 50 Pin TSOP (II) Pin Configuration...
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Block Diagram Pin Descriptions Symbol Name Description System Clock Active on the positive going edge to sample all inputs Chip Select Disables or Enables device operation by masking or enabling all inputs except CLK, CKE and L(U)DQM Masks system clock to freeze operation from the next clock cycle. Clock Enable CKE should be enabled at least one clock + tss prior to new command.
Symbol Name Description VDD/VSS Power Supply/Ground Power Supply: +3.3V±0.3V/Ground Data Output VDDQ/VSSQ Provide isolated Power/Ground to DQs for improved noise immunity. Power/Ground NC/RFU No Connection 3. Product Specifications Playback System DVD Video Video CD (1.1, 2.0, 3.0) SVCD and CVD CDDA CD-ROM with MP3 data PICTURE CD...
4.Upgrading System and Changing the Region Code MTK upgrade: 1. Name upgrade file as "MTK.BIN"(must be in big caps) 2. Record it in a CD-R/W (It can be enclosed a sub-directory which size is about 30M, and the file content can be letter or non used file.) disc Format: (advise to use the tool NERO burning ROM) Disc volume: MEDIATEK, ISO9660 LEVEL1, MODE1,not JOILET.
Maintenance & Troubleshooting How to handle discs Disc Compatibility To handle, clean and protect discs Some DVD discs may have special ● Do not touch the playing side of a requirements for playing, with which ● disc this player may not be compatible. Please refer to specifications on individual disc.
Problems and Solutions If a fault occurs, first check the points listed below before taking the set for repair. If you are unable to remedy a problem by following these hints, consult your dealer or service centre. WARNING: Under no circumstances should you try to repair the set yourself, as this would invalidate the guarantee. Problems Cause Solution...
7.Troubleshooting No power Insert the AC power plug securely into the power outlet. Make sure that the equipment is connected properly. No picture Make sure that the input setting for TV is Video (AV). No sound Make sure that the equipment is connected properly. Distorted sound Make sure that the input settings for the TV and stereo system are correct.
8. Electrical Part List CO-3810 PRODUCT DESIGN PACKAGE LIST Item Name of Components Specification Qty. Location lines A:line 24PIN/0.5mm L=70mm loader to MPEG board 5PIN/2.0mm loader to MPEG board L=140mm loader to MPEG board 6PIN/2.0mm L=60mm 5PIN/2.54mm L=500mm MPEG board 4PIN/2.54mm L=120mm control panel to power board...
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0325 transformer and ST_Viper22 CO-DCB3810 control panel CO-DCB3810 control panel with SCART,Optical and KARAOKE, AV output board CO-DOB1379-9 without earphone plastical sets DVD-HT750 CO-3810 front panel front panel CO-3810 power supply button ABS silver CO-3810 MIC volume button ABS silver...
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5 for power board,3 for output board rubber mat Φ12*2 hardness 64 rubber mat 19.5*9.5*3.5 hardness 64 metals DVD-HT750 CO-602 upper cover siver upper cover DVD-HT750 CO-602DZ silver-gray bottom cover DVD-HT750 CO-602HBA black rear panel 9 for control panel,2 for power botton,1 for bolt Φ3*8BAUU...
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DVD-HT750 gift box DVD-HT750 1 players in 1 PE for power supply wire 05*80*160mm 05*80*260mm for remote control 0.5*180*260mm for owner's manual 480*580mm pearl cotton B:appendix DVD-HT750 remote control remote control batteries 1 set DVD-HT750 manual Video connection wire 1.5M Audio connection wire 1.5M...
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glue paper some heat-contracting tube 4mmX15mm Φ22X30mm heat-contracting tube jumper(Φ0.6mm) double-color LED Φ3mm Components of Power Board Jack 4PIN/2.54mm Jack 5PIN/2.54mm 10PIN/2.54mm CN3(4) Jack Jack 3PIN/3.96mm BCN1,BCN2 Ceramic capacitor 330pF 63V +/-10% 5mm Ceramic capacitor 0.1uF 63V +/-20% 5mm Ceramic capacitor 100pF 63V +/-20% Y5P 5mm C11,C12,C13 Ceramic capacitor...
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INDEX Hermoine GRANGER Revision-A3 Servo-MPEG Board of MAXITECH Complete Loader DCL34MK72/75MT1379xE for Cosmic DV-34 Pickup Loader Layout----Hermoine GRANGER Revision-A3B2 Revision History Background Revision-A1 This design is the Servo-MPEG Board of COSMIC Technology Co., LTD. DVD Complete Loader module DCL34MK-72/75, which is thecombination of this PCBA & Cosmic DV-34 Pickup Loader. Base on MTK Reference Design COMMON79_HD60_V2,Re-sized for Complete Loader PCB Dimension Requirement.