Daewoo DV-700S, Service Manual

Page 1: ...Service Manual MODEL DV 700S ...

Page 2: ...S 2 ADVANTAGES OF THIS PRODUCT 3 CIRCUIT OPERATIONAL DESCRIPTION 4 VOLTAGE CHARTS 17 CIRCUIT DIAGRAM 18 PCB CIRCUIT BOARD 27 INSTRUMENT DISASSEMBLY 31 PARTSLIST 35 Caution In this Manual some parts can be changed for improving ...

Page 3: ...CATIONS DVD Audio output standards Output Disc type DVD VIDEO CD CD Analogue Audio output Digital Audio output 48 96KHz sampling 48KHz sampling 44 1KHz sampling 44 1KHz sampling 44 1KHz sampling 44 1KHz sampling ...

Page 4: ...yback title and chapter for DVD track and disc for VCD CD Repeat a defined period from A to B DVD Selective Play DVD VCD CD You can select and play the desired title chapter of DVD and track of Video CD Various languages OSD On Screen Display function DVD You can select and display OSD among various languages English French Spanish Parental Lock function DVD This function can prevent playback of s...

Page 5: ...d to each IC and the SET will be the STANDBY status which requires the least power for input the front panel key input the STAND BY ON key extinguished the LED Once the Power On key is entered u Com recognizes it and initiates each chipset performs sequential algorithms such as determining whether the disc is in or not and if in what type of disc is loaded Through this process it can read disc dat...

Page 6: ...rt term Mecha and Servo Mecha mounts with the optical pick up which allows reading the signal of a disc using laser beam and makes it operates and consists of the deck mechanism which allows loading a disc and reading the data Servo is a sort of circuit which allows operating the loader and recovering the data and consists of Motor Drive IC operating the spindle the sled the loading motor 5 ...

Page 7: ...or opening and closing of the tray The focus signal the tracking signal the sled signal and the spindle signal are input into each relaxant port of the drive IC in the order of No 26 pin 23 4 and 1 and set the gain amplification and the center voltage through the internal OP AMP and drive on both sides and then the focus signal and the tracking signal will be output as VOFC VOFC and VOTK VOTK on a...

Page 8: ...g of 32 bit RISC and 64 bit DSP processors and offers the best DVD feature set The processing units enable simultaneous parallel execution of system commands and data processing to perform specialized enconding and decoding tasks The RISC processor performs bit stream parsing control audio data output transfer video and audio data to the vector engine and service system control and housekeeping fu...

Page 9: ...8 CIRCUIT OPERATIONAL DESCRIPTION ES6698 Vibratto II system Block Diagram ES6698 Vibratto II Block Diagram ...

Page 10: ...ror detection for DVD The ES6603 also provides an AC coupled differential or single ended RF signal input to the programmable attenuator with external AC coupling circuitry and an AC coupled single ended input for RF signals The attenuator outputs are AC coupled to the AGC inputs The AC coupled DVD and CD inputs are multiplexed in the input stage for accurate error detection The programmable bandw...

Page 11: ...CIRCUIT OPERATIONAL DESCRIPTION DVD Servo AFE IC ES6603 Block Diagram 10 ...

Page 12: ...CIRCUIT OPERATIONAL DESCRIPTION 11 ...

Page 13: ...of 16 bits each The A29800UV 70 offers the RESET function The 1024 Kbytes of data are further divided into nineteen sectors for flexible sector erase capability The 8 bits of data appear on I O0 I O7 while the addresses are input on A1 to A18 the 16 bits of data appear on I O0 I O15 The A29800UV 70 is offered in 44 pin SOP and 48 Pin TSOP packages This device is designed to be programmed in system...

Page 14: ...scription The S524C20D21serial EEPROM has a 2 048 bit 256 byte capacity supporting the standard I C bus serial interface It is fabricated using Samsung most advanced CMOS technology One of its major feature is a hardware based write protection circuit for the entire memory area Hardware based write protection is controlled by the state of the write protect WP pin Using one page write mode you can ...

Page 15: ...T H is organized as 4banks of 1 048 576x16 HY57V641620HGT H is offering fully synchronous operation referenced to a positive edge of the clock All inputs and outputs are synchro nized with the rising edge of the clock input The data paths are internally pipelined to achieve very high bandwidth All input and output voltage levels are compatible with LVTTL Programmable options include the length of ...

Page 16: ...HY57V641620HGT H Block Diagram CIRCUIT OPERATIONAL DESCRIPTION 15 ...

Page 17: ...er DVD ROM driver MPEG 2 card set top box and home theaters etc It accepts input word length of 16 18 20 and 24bits and supports audio sampling frequency from 16KHz to 96KHz In addition DA1132 provides a range of control features either via 3 wire serial interface ports or hardware pins DA1132 Block Diagram CIRCUIT OPERATIONAL DESCRIPTION ...

Page 18: ...umber Output voltage 1 2 3 4 5 6 7 8 9 GND S5V 3 3V D5V GND A5V GND 12V 12V J2 Pin number Output voltage 1 2 3 4 5 6 SW F F GND 24V STB5V Decode board input voltage CN1 Pin number Output voltage 1 2 3 4 5 6 7 8 9 GND S5V 3 3V D5V GND A5V GND 12V 12V 17 ...

Page 19: ...1 POWER SUPPLY SCHEMATIC DIAGRAM CIRCUIT DIAGRAM 18 ...

Page 20: ...2 DECODE BOARD SCHEMATIC DIAGRAM CIRCUIT DIAGRAM 1 Vibratto II 19 ...

Page 21: ...2 ES6603 and motor drivers CIRCUIT DIAGRAM 20 ...

Page 22: ...3 Audio and Power CIRCUIT DIAGRAM 21 ...

Page 23: ...4 Audio filter and output CIRCUIT DIAGRAM 22 ...

Page 24: ...5 Flash SDRAM CIRCUIT DIAGRAM 23 ...

Page 25: ...6 SCART CIRCUIT DIAGRAM 24 ...

Page 26: ...3 CONTROL BOARD SCHEMATIC DIAGRAM CIRCUIT DIAGRAM 25 ...

Page 27: ...4 MICROPHONE BOARD SCHEMATIC DIAGRAM CIRCUIT DIAGRAM 26 ...

Page 28: ...1 POWER SUPPLY BOARD PCB CIRCUIT BOARD 27 ...

Page 29: ...2 DECODE BOARD PCB CIRCUIT BOARD 28 ...

Page 30: ...3 CONTROL BOARD PCB CIRCUIT BOARD 29 ...

Page 31: ...4 MICROPHONE BOARD PCB CIRCUIT BOARD 30 ...

Page 32: ...INSTRUMENT DISASSEMBLY 31 Perform all disassembly procedures in the order presented When reassembling use the reverse procedure Make sure that all leads wiring are routed correctly when reassembling ...

Page 33: ...INSTRUMENT DISASSEMBLY 32 Remove three hooks Remove three hooks Simultaneously remove panel ...

Page 34: ...INSTRUMENT DISASSEMBLY 33 C DECODE BOARD DISASSEMBLY Remove three screws Remove four screws Remove power supply board D POWER SUPPLY BOARD DISASSEMBLY ...

Page 35: ...INSTRUMENT DISASSEMBLY 34 E YUV OUTPUT BOARD DISASSEMBLY Remove two screw Remove SCART output board Remove four screws Remove DVD loader F DVD LOADER DISASSEMBLY FIG 5 FIG 6 ...

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