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BBK DV985S, Руководство по обслуживанию, Страница: 11 / 68

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BBK DV985S Скачать руководство пользователя страница 11

   Do the confirmation after replacing P.C.B.

Purpose:To maintain video signal output compatibility.

1.Connect the oscilloscope to the video output terminal and terminate at 75 ohme.

2.Confirm that the chrominance signal(C)level is 621 mVp-p±30mV

Measurement point 

Video output terminal

Color bar 75%

PLAY(Title 46):DVDT-S15

PLAY(Title 12):DVDT-S01

DVDT-S15

or

DVDT-S01

Mode

Disc

Measuring equipment,tools

Confirmation value

Screwdriver,Oscilloscope

200mV/dir,10 sec/dir

621mVp-p±30mV

Содержание DV985S

Страница 1: ...SERVICE MANUAL DV985S...

Страница 2: ...VIEW AND PART LIST 4 BRACKET EXPLOSED VIEW AND PART LIST 6 ELECTRICAL CONFIRMATION 8 VI DEO OUTPUT LUMINANCE SIGNAL CONFIRMATION 8 VI DEO OUTPUT CHROMINANCE SIGNAL CONFIRMATION 9 MPEG BOARD CHECK WAV...

Страница 3: ...removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as alminum foil to prevent electrostatic charge buildup or exposure of the assembly 3 Use only...

Страница 4: ...Front Panel Illustration POWER switch Disc tray STOP button IR SENSOR Display window OPEN CLOSE button 6 5 4 2 3 7 2 7 6 PLAY PAUSE button 3 4 5...

Страница 5: ...installation the both ends of the laser diode are short circuited After replacing the parts with new ones remove the short circuit according to the correct procedure See this Technical Guide 2 Do not...

Страница 6: ...5 1 Optical pickup Unit Explosed View and Part List Pic 1...

Страница 7: ...MIDDLE A 1 7 1EA2511A29400 GEAR MIDDLE B 1 8 1EA2744A03000 SHAFT SLIDE 1 9 1EA2744A03100 SHAFT SLIDE SUB 1 10 1EA2812A15300 SPRING COMP TYOUSEI 3 11 1EA2812A15400 SPRING COMP RACK 1 21 1EA0B10B20100 A...

Страница 8: ...t wheel 17 Pick up 5 gearwheel 18 switch 6 iron chip 19 Five pin flat plug 7 Immobility mechanism equipment 20 screw 8 Magnet 21 PCB 9 Platen 22 motor 10 Bridge bracket 23 Motor wheel 11 screw 24 scre...

Страница 9: ...h a soldering iron after a circuit is connected Keep the power source of the pick up protected from internal and external sources of electrical noise Refrain from operation and storage in atmospheres...

Страница 10: ...onnect the oscilloscope to the video output terminal and terminate at 75 ohms 2 Confirm that luminance signal Y S level is 1000mVp p 30mV Measurement point Video output terminal Color bar 75 PLAY Titl...

Страница 11: ...tput terminal and terminate at 75 ohme 2 Confirm that the chrominance signal C level is 621 mVp p 30mV Measurement point Video output terminal Color bar 75 PLAY Title 46 DVDT S15 PLAY Title 12 DVDT S0...

Страница 12: ......

Страница 13: ...and 4 2 2 YCr Cb 1 4 Frame Rate Conversion Tearless Frame Rate Conversion 50 60 72 75 100 120 Hz 1 5 Front End Processing Motion Adaptive Noise Reduction Improves picture quality for off air material...

Страница 14: ...ut Processor with Auto Sync and auto Adjust Noise Reducer Deinterlacer Frame Rate Converter and SDRAM interface Port 2 8 bit 656 Input Port 1 8 16 24 bit RGB YCrCb Input Clock Generation PLLs 2Mx32 SD...

Страница 15: ...ATA 30 SDRAM DATA 29 SDRAM DATA 28 SDRAM DATA 26 SDRAM DATA 27 SDRAM DATA 25 SDRAM DATA 24 SDRAM DATA 23 SDRAM DATA 21 SDRAM DATA 22 VDDcore4 VSScore VSS VDD5 TEST IN SDRAM ADDR 10 SDRAM ADDR 5 SDRAM...

Страница 16: ...18 B Cb D1_5 Input 5v Port 1 Digital video input Blue Cb D1 19 B Cb D1_6 Input 5v Port 1 Digital video input Blue Cb D1 20 B Cb D1_7 Input 5v Port 1 Digital video input Blue Cb D1 21 R Cr Cb Cr_0 Inpu...

Страница 17: ...r pin for IO 63 VSS Ground Ground 64 SDRAM DATA 12 Tristate I O 5v 4 mA PD SDRAM data bus 65 SDRAM DATA 13 Tristate I O 5v 4 mA PD SDRAM data bus 66 SDRAM DATA 14 Tristate I O 5v 4 mA PD SDRAM data bu...

Страница 18: ...BA1 Tristate O P 5v 8 mA SDRAM bank select 1 108 SDRAM BA0 Tristate O P 5v 8 mA SDRAM bank select 0 109 SDRAM CSN Tristate O P 5v 4 mA SDRAM CS 110 SDRAM DQM Tristate O P 5v 8 mA SDRAM DQM 111 SDRAM...

Страница 19: ...DD8 Power 3 3 V Power pin for IO 147 VSS Ground Ground 148 G Y Y_OUT_0 Tristate O P 5v 8 mA Digital video output Green Y 149 G Y Y_OUT_1 Tristate O P 5v 8 mA Digital video output Green Y 150 G Y Y_OUT...

Страница 20: ...Test pin connect to ground 191 XTAL IN Input External parallel crystal oscillator 192 XTAL OUT Output External parallel crystal oscillator 193 VDD9 Power 3 3 V Power pin for IO 194 VSS Ground Ground 1...

Страница 21: ...r Sectors can be locked in system or via programming equipment Temporary Sector Unprotect feature allows code changes in previously locked sectors Unlock Bypass Program Command Reduces overall program...

Страница 22: ...ss time ns tACC 70 90 120 Max CE access time ns tCE 70 90 120 Max OE access time ns tOE 30 35 50 Input Output Buffers X Decoder Y Decoder Chip Enable Output Enable Logic Erase Voltage Generator PGM Vo...

Страница 23: ...12 DQ4 VCC DQ11 DQ3 DQ10 48 33 47 46 45 44 43 42 41 40 39 38 37 36 35 34 25 32 31 30 29 28 27 26 A1 A15 A18 A14 A13 A12 A11 A10 A9 A8 A19 NC WE RESET NC NC RY BY A17 A7 A6 A5 A4 A3 A2 1 16 2 3 4 5 6 7...

Страница 24: ...22 RESET A18 A17 A7 A6 A5 A4 A3 A2 A1 A0 CE VSS OE DQ0 DQ8 DQ1 DQ9 DQ2 DQ10 DQ3 DQ11 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 WE A19 A8 A9 A10 A11 A12 A13 A14 A15 A16 BYTE VSS...

Страница 25: ...16 bit mode CE Chip enable OE Output enable WE Write enable RESET Hardware reset pin RY BY Ready Busy output N A SO 044 VCC 3 0 volt only single power supply see Product Selector Guide for speed opti...

Страница 26: ...f consecutive read or write cycles initiated by a single control command Burst length of 1 2 4 8 or Full page and the burst count sequence sequential or interleave A burst of read or write cycles in p...

Страница 27: ...ite Enable RAS CAS and WE define the operation Refer function truth table for details LDQM UDQM Data Input Output Mask Controls output buffers in read mode and masks input data in write mode DQ0 DQ15...

Страница 28: ...olumn Pre Decoders Column Add Counter Row active Column Active Burst Counter Data Out Control CAS Latency Internal Row counter DQ0 DQ1 DQ14 DQ15 refresh Self refresh logic timer Pipe Line Control I O...

Страница 29: ...e 12 bit or 24 bit mode 1 pixel clock inputs Flexible Input Clocking Single clock single edge 24 bit Single clock dual edge 12 24 bit Dual clock single edge 12 bit I 2 C Slave Programming Interface up...

Страница 30: ...g one or two clocks with one or two edges per clock An attached monitor may be sensed using the HTPLG pin or internally with Receiver Sense This detected state may be output onto the MSEN pin The devi...

Страница 31: ...24 bit input bus widths DSEL selects between single edge and dual edge modes for the input clocks EDGE selects between rising and falling edge on the input clocks CLK and CLK provide the one or two cl...

Страница 32: ...er applied 0 25 70 C JA Thermal Resistance Junction to Ambient 1 64 C W Note 1 Airflow at 0m s Digital I O Specifications Under normal operating conditions unless otherwise specified Symbol Parameter...

Страница 33: ...510 510 550 590 mV VDOH Differential High level Output AVCC V Voltage 1 IDOS Differential Output Short Circuit Current 1 VOUT 0 V 5 A IPD Power down Current 2 0 2 1 0 mA ICCT Transmitter Supply Curre...

Страница 34: ...HSYNC Setup Time to IDCK falling rising edge 1 Default De skew Setting Dual Edge DSEL 1 BSEL 0 0 6 ns THID Data DE VSYNC HSYNC Hold Time from IDCK falling rising edge 1 Default De skew Setting Dual E...

Страница 35: ...Data Sheet Input Timing Diagrams TCIH TCIL TCIP 2 0 V 0 8 V 0 8 V 2 0 V 2 0 V Figure 3 Clock Cycle High Low Times Figure 4 Low Swing Differential Times ISEL RST VCC TRESET Figure 5 ISEL RST Minimum T...

Страница 36: ...TL 3 1 Delay Time from DE DE TLDE THDE 0 8 V 2 0 V 0 8 V 2 0 V Figure 8 DE High and Low Times Figure 9 I 2 C Data Valid Delay driving Read Cycle data D 23 0 DE HSYNC VSYNC IDCK TSIDF THIDF TSIDR THIDR...

Страница 37: ...n 12 bit mode when dual edge clocking is turned off DSEL LOW It is used to provide the ODD latching edges for dual clock single edge If BSEL HIGH or DSEL HIGH this pin is unused and should be tied to...

Страница 38: ...then this pin selects whether single clock dual edge is used Dual Edge clock select When HIGH IDCK latches input data on both falling and rising clock edges When LOW IDCK IDCK latches input data on on...

Страница 39: ...C mode Differential Signal Data Pins Pin Name Pin Type Description TX0 TX0 TX1 TX1 TX2 TX2 25 24 28 27 31 30 Analog Analog Analog Analog Analog Analog TMDS Low Voltage Differential Signal input data...

Страница 40: ...en and read from are listed as R W while registers that can be read only are listed with RO 3 Actual jitter tolerance may be higher depending on the frequency of the jitter 4 Contents of this register...

Страница 41: ...t data is dual edge latched HEN RW Horizontal Sync Enable 0 HSYNC input is transmitted as fixed LOW 1 HSYNC input is transmitted as is VEN RW Vertical Sync Enable 0 VSYNC input is transmitted as fixed...

Страница 42: ...racteristics of PLL filter in the VDJK register 100 Recommended value SCNT RW SYNC Continuous 1 To enable recommended setting 0 To disable DK 3 1 RW De skewing Setting Increment 260psec 000 1 step min...

Страница 43: ...grates the MediaTek 2nd generation front end analog RF amplifier and the Servo MPEG AV decoder The progressive scan of the MT1389 utilized a proprietary advanced motion adaptive de interlace algorithm...

Страница 44: ...output or digital output Embedded Micro controller Built in 8032 micro controller Built in internal 373 and 8 bit programmable lower address port 1024 bytes on chip RAM Up to 4M bytes FLASH programmin...

Страница 45: ...e echo Microphone tone control Vocal mute vocal assistant Key shift up to 8 keys Chorus Flanger Harmony Reverb Channel equalizer 3D surround processing include virtual surround and speaker separation...

Страница 46: ...G12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 R416 10K VCC C406 101 R417 10K VCC TC402 100uF 16V TC401 100uF 16V R418 10R F1 1 F1 2 P16 4 P13 7 P14 6 P15 5 P12 8 P11 9 P10 10 P9 11 P8 1...

Страница 47: ......

Страница 48: ...ER105 TC513 100uF 16V D503 1N4007 D502 1N4007 D504 1N4007 D501 1N4007 C508 104 9V ZD502 9 1V 1W 2 3 4 6 7 10 11 9 12 13 14 15 16 TR501 EI128 8 2 TC515 470uF 25V D513 HER105 C516 101 R512 22K R514 10K...

Страница 49: ......

Страница 50: ...V985S 7969 32 DDB Drawn By SW GND K901 6x6x1 FL FL 21V GND 9V 9V GND 5V STB CPU 3 3V AGND 2 3 4 1 5 6 8 9 10 7 11 12 13 XS901 OK DET FL FL 21V GND CPU 3 3V 5V SW GND PLED1 STB PLED OLED PLED OLED 2 3...

Страница 51: ......

Страница 52: ...10V AGND PDAT0 V703 8050 R711 1K R712 2 2K A 10V PDAT2 C716 104 AGND VCC AGND R707 A 10V AGND AGND VCC PDAT0 10V VGND VGND Pr L709 FBSMT L708 FBSMT L707 FBSMT Y1 Pb VGND GREEN BLUE RED B G R 1 2 3 4 5...

Страница 53: ......

Страница 54: ...125 VSScore 124 VDDcore6 1 8 123 CTLOUT4 122 CTLOUT3 121 CTLOUT2 120 CTLOUT1 119 CTLOUT0 118 TEST OUT1 117 TEST OUT0 116 TEST3 115 SDRAM CLKIN 114 VSSio6 113 VDD6 3 3 112 SDRAM CLKOUT 111 SDRAM DQM 1...

Страница 55: ......

Страница 56: ...core6 1 8 123 CTLOUT4 122 CTLOUT3 121 CTLOUT2 120 CTLOUT1 119 CTLOUT0 118 TEST OUT1 117 TEST OUT0 116 TEST3 115 SDRAM CLKIN 114 VSSio6 113 VDD6 3 3 112 SDRAM CLKOUT 111 SDRAM DQM 110 SDRAM CSN 109 SDR...

Страница 57: ...3 4 1 XS201 XS04 2 3 4 1 XS203 XS04 C240 104 C242 104 C230 104 C236 104 C232 104 C238 104 TC219 100uF 16V C234 104 C228 104 3 3V TC217 47uF 16V C224 104 C225 104 C226 104 C222 104 C223 104 C221 104 D...

Страница 58: ...O V1P4 V1P4 ADIN L202 FB 89V33 PWR A16 A15 A14 A13 A12 A11 A10 A9 A20 PCE A1 PRD AD0 AD1 AD2 AD3 AD4 AD5 AD6 A21 AD7 A17 A0 V18 VSCK VSDA VSTB SCL SDA RXD TXD URST IR DQM0 DQS0 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2...

Страница 59: ...1 5 6 8 9 10 7 11 12 13 XS203 XS13 L224 FB L225 1K MUTEA ASTB MUTE_DAC AGND VGND LFE Cc SR SL Rt Lt VIDEO_COMP VIDEO_U VIDEO_V VIDEO_C VIDEO_Y VCC IEC958 2 3 4 1 5 6 8 9 10 7 11 12 14 15 16 13 17 18...

Страница 60: ...2SC1815 YS C2138 104 C2139 104 C2140 104 9V AGND C2141 104 C2142 104 C2143 104 9V AGND SDATA2 SDATA1 SDATA0 SLRCK SACLK SBCLK SCL SDA RESET LL RS RR LS LFE C R2132 20K C2116 102 OKA AGND R2156 20K R2...

Страница 61: ......

Страница 62: ...7 C509 C511 C513 C514 19 PORCELAIN CAPACITOR 1000V 103 80 20 7 5mm 1 C502 20 TERYLENE CAPACITOR 100V 102 5 3 5mm 1 C506 21 PORCELAIN CAPACITOR 50V 104 20 5mm 7 C508 C510 C517 C515 C518 C51 9 C520 22 P...

Страница 63: ...D HEAT RADIATION BOARD 58 TAPPING SCREW BT 3 8 BLACK 2 U504 U505 FOR HEAR RADIATION 59 FUSE T1 6AL 250V 1 F501 60 FUSE HOLDER BLX 2 1 FOR F501 61 POWER GROUND PIECE AB903 1 G503 62 IC LM7805 SEALEDTO...

Страница 64: ...30 SOFTWARE PROGRAM EPROM ROM969S 0A 53S 1 3 OUTPUT BOARD MATERIAL SPECIFICATIONS PART NUMBER QUANTITY LOCATION 1 SMD RESISTOR 1 16W 100 5 1 R702 2 CARBON FILM RESISTOR 1 4W68 5 1 R703 3 SMD RESISTOR...

Страница 65: ...ARD MATERIAL SPECIFICATIONS PART NUMBER QUANTITY LOCATION 1 SMD RESISTOR 1 16W 0 5 15 R206 R209 R226 R240 R242 R249 R 251 R253 R255 R259 R264 R265 R26 6 2 SMD RESISTOR 1 16W 33 5 5 R222 R223 R224 R225...

Страница 66: ...H REFLECTIVE NEDDLE 1 XS901 3 LIGHT TOUCH RESTORE SWITCH HERIZONTAL 6 6 1 1 4 PCB 9971 0 1 5 DECODE BOARD MATERIAL SPECIFICATIONS PART NUMBER QUANTITY LOCATION 1 SMD RESISTOR 1 16W 0 5 0603 34 C2119 C...

Страница 67: ...8 TC309 TC247 TC248 TC239 TC249 30 SMD CAPACITOR 50V 20P 5 NPO 0603 1 C222 31 SMD CAPACITOR 50V 27P 5 NPO 0603 2 C275 C276 32 SMD CAPACITOR 50V 47P 5 NPO 0603 17 C262 C265 C266 C289 C290 C29 2 C293 C2...

Страница 68: ...06 V309 54 SMD TRIODE 9014C 1 V310 55 TRIODE 9015C 1 Q204 56 TRIODE C1815Y 1 Q212 57 SMD TRIODE C1815 6 Q205 Q210 58 TRIODE 2SA1015 3 Q211 Q218 Q219 59 SMD TRIODE 3904 1 V305 60 SMD TRIODE 3906 6 Q220...

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