BBK DK1010S Скачать руководство пользователя страница 23

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174

RD26

DRAM data

176-177

RD24-25

DRAM data

178-179

DQM2-3

DRAM I/O shielding signal

180-181

RD22-23

DRAM data

183-188

RD16-21

DRAM data

189

DACVDDC

D/A conversion 3.3V power supply

190

VREF

Reference voltage

191

192

YUV0/CIN

193

DACVSSC

D/A conversion grounding

194

YUV1/Y

Video signal YUV1 output/Y signal

output

195

DACVDDB

D/A conversion 3.3V power supply

196

YUV2/C

Video signal YUV2 output/C signal

output

197

DACVSSB

D/A conversion grounding

198

YUV3/CVBS

Video signal YUV3 output/CVBS signal

output

199

DACVDDA

D/A conversion 3.3V power supply

200

YUV4/G

Video signal YUV4 output/G signal

output

201

DACVSSA

D/A conversion grounding

202

TUV5/B

Video signal YUV5 output/B signal

output

203

YUV6/R

Video signal YUV6 output/R signal

output

205

VSYNC/ADIN1

Field synchronization signal output/AD

universal input

206

YUV7/ASDATA5

Video signal YUV7 output/audio series

data

207

HSYNC/ADIN2

Row synchronization output/AD

universal input

208

SPMCLK

209

SPDATA

Содержание DK1010S

Страница 1: ...1 Processing Procedure of Digital Signal 2 Processing Procedure of Control Signal Chapter III Operating Principle of Decoding Circuit 1 Control Circuit of System 2 Audio and Video Output Circuit Chapt...

Страница 2: ...enance Corresponding decks should be changed with the same type of original ones otherwise the player will be out of order Identification of decks is shown as figures In addition you should also pay s...

Страница 3: ...power amplifier adopts the digital power amplification circuit with the power IC of TAS5112DFD it has low distortion level 3 The audio process adopts TAS5508 with high integration and high performanc...

Страница 4: ...head 16M ROM SDRAM Sany deck focus track feed main load load drive Power Panel status AudioD A power Refor Servo drive Digital servo Digital signal MPEG decoder AV output circuit composite S terminal...

Страница 5: ...or correction deck and MTK decoding solution and its servo circuit mainly consists of preposition signal processing digital servo processing digital signal processing IC MT1389 and driver circuit BA59...

Страница 6: ...gnals will be EFM demodulated in MT1389 and after accomplishing CIRC error regulation in internal MT1389 output to the next grade to carry out audio and video decoding when the deck reads the DVD sign...

Страница 7: ...losing When we press the open button the Pin 51 of MT1389 is in low power level while the Pin 39 is in high power level and then the triode V307 will be conducted Through resistor R324 the base of V30...

Страница 8: ...player III Servo drive circuit The servo drive of the player is accomplished through a piece of 4 channel dedicated drive circuit BA5954 with the circuit as Figure V The 4 servo control signals gener...

Страница 9: ...89 to reset MT 1389 When the recharging of TC217 is finished the base of Q204 will be in high power level Q204 will be conducted and the emission polar is in high power level After the secondary phase...

Страница 10: ...composite video signal CVBS S terminal color difference signal and VGA signal The CVBS composite video signal is outputted from the Pin 198 of MT1389 the S terminal signal Y C is outputted from the p...

Страница 11: ...output 50W It has 95DB dynamic range low distortion degree and low rate of heat generation with power efficiency up to 90 It also has functions of low voltage protection high temperature protection ov...

Страница 12: ...tage for power amplifying IC after being rectified and filtered 2 Voltage output from pin 16 of transformer T501 outputs a group of 12V voltage after being rectified and filtered 12V voltage is stabil...

Страница 13: ...drive the IC 0793 outputs the control data from the pins 5 and 6 VFDAT to the built in CPU of MT1389 which will realize the control on the controlled circuit and control the VFD through IC 0793 Its op...

Страница 14: ...3V LD02 3 3V V301 and V302 electron collector LD voltage 2 3V BA5954 pin 4 base voltage 1 4V BA5954 pins 15 and 16 tracking drive output Around 2 5V BA5954 pins 17 and 18 feed drive output Around 2 5...

Страница 15: ...C276 R224 R248 are damaged Check if reset signal URST is in 5V high level Check if the reset circuit which is comprised by HCU04 and Q204 etc is in working order Check if I2C bus SDA SCL 3 3V voltage...

Страница 16: ...5V are in working order Check if the connection from BA5954 to MT1389 is open circuit Check feed motor and its connection Check if laser head has focus action Check if BA5954 pin 1 has focus control...

Страница 17: ...2 3V Check if the laser head and its array line are right Check if the main shaft rotates Check if the control voltage of BA5954 pin 5 main shaft is 1 4V Check if the connection from BA5954 to MT1389...

Страница 18: ...MPEG 2 MPEG4 JPEG Video decoding chip which can not only realize the decoding of VCD and DVD but also realize MPEG 4 network video decoding being compatible to network movie disc and decipher JPED pic...

Страница 19: ...CD focusing error phase input 18 TNI 3 light beam auxiliary PD signal phase inversion input 19 TPI 4 light beam auxiliary PD signal phase input 20 MDI1 Laser power monitoring input 1 21 MDI2 Laser pow...

Страница 20: ...USB data 45 USBM USB data 46 USB_VDD3 USB 3 3V power supply 47 FG ADIN8 Motor sensing signal input AD universal input 48 TDI ADIN4 Open position detecting signal input AD universal input 49 TMS ADIN5...

Страница 21: ...0 3 Micro controller address data bit 0 3 86 88 AD4 6 Micro controller address data bit 4 6 89 IOA21 ADIN0 Micro controller address bit 21 AD universal input 90 ALE Micro controller address enabling 9...

Страница 22: ...elding signal 138 RWE DRAM writing enabling 139 CAS DRAM column address selection 140 RAS DRAM row address selection 142 RCS DRAM chip selection 143 BA0 DRAM section address 0 145 BA1 DRAM section add...

Страница 23: ...ignal YUV2 output C signal output 197 DACVSSB D A conversion grounding 198 YUV3 CVBS Video signal YUV3 output CVBS signal output 199 DACVDDA D A conversion 3 3V power supply 200 YUV4 G Video signal YU...

Страница 24: ...put 231 JITFN RF small signal phase inversionand amplification input 232 PLLVSS Phase lock loop grounding 233 IDACEXLP 234 PLLVDD3 Phase lock loop 3 3V power supply 235 LPFON Amplifier loop wave filtr...

Страница 25: ...kaging of 28 pins Note The 28 pins of BA5954 are for outputting effective control signal which is provided by the 50 pins of MT1389 When the signal is in high power level BA5954 output is in validity...

Страница 26: ...ck loop 25 CTK1 External feedback loop 26 VINTK Tracking control signal input 27 BIAS 1 4 reference voltage input 28 STBY Enabling control signal III 29LV160BE 29LV160BE is a type of 16Mbit FLASH memo...

Страница 27: ...ine 47 BYTE Adopting 8 byte in low level or 16 byte output mode in high level 11 WE Write enabling 12 RESET Reset valid in low level 10 13 14 NC Neutral pin IV AE45164016 AE45164016 is a type of 64Mb...

Страница 28: ...e voltage for PLL 2 PLL_FLT_RET PLL external filtering circuit 3 PLL_FLTM PLL inverted input pin 4 PLL_FLTP PLL non inverted output pin 5 AVSS Analog grounding 6 AVSS Analog grounding 7 VRD_PLL Provid...

Страница 29: ...ignal output 1 42 PWM_M_2 PWM signal output 2 43 PWM_P_2 PWM signal output 2 44 PWM_M_3 PWM signal output 3 45 PWM_P_3 PWM signal output 3 46 PWM_M_4 PWM signal output 4 47 PWM_P_4 PWM signal output 4...

Страница 30: ...ent circuit 12 DREG_RTN Digital service voltage adjustment circuit 25 DVDD Input output reference 1 2 22 24 28 29 27 36 37 48 49 56 GND Grounding 3 26 GREG Driving voltage adjustment of gate circuit 3...

Страница 31: ...ut A 4 V Negative power supply 5 NON INVERTING INPUT B Non inverted input B 6 INVERTING INPUT B Inverted input B 7 OUTPUT B Output channel B 8 V Positive power supply IIIV CS 5340 CS 5340 is an IC of...

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