Sharp DV-SV 80 H Service Manual Download | Manualshive

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Summary of Contents for DV-SV 80 H

Page 1: ...ESCRIPTION 6 4 1 MT1379 PIN DESCRIPTION 6 4 2 SYSTEM BLOCK DIAGRAM 8 5 AUDIO OUTPUT 9 6 AUDIO DACS 9 7 VIDEO INTERFACE 9 7 1 VIDEO DISPLAYOUTPUT 9 8 FLASH MEMORY 10 9 SERIAL EEPROM MEMORY 10 10 AUDIO INTERFACEAUDIO SAMPLING RATEAND PLL COMPONENT CONFIGURATION 10 11 FRONTPANEL 10 11 1 VFD CONTROLLER 10 12 CONNECTORS 1 1 12 1 SCART CONNECTORS 1 1 12 2 CABLE DIAGRAM 12 13 CIRCUIT DESCRIPTION 13 13 1 ...

Page 2: ...XPOSURE ASTHELASERBEAMUSEDINTHISDVDPLAYER IS HARMFUL TO EYES DO NOT ATTEMPT TO DISASSEMBLETHECABINET REFERSERVICING TOQUALIFIEDPERSONELONLY WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DONOTEXPOSETHISEQUIPMENTTO RAINORMOISTURE TOREDUCETHERISKOFFIREORELECTRIC SHOCK ANDANNOYINGINTERFERENCE USE THERECOMMENDEDACCESSORIESONLY This DVD player is classifield as a CLASS 1 LASER product The CLASS 1...

Page 3: ...rocessing rate up to 108Mbits sec Line resolution more than 500 lines Video Output Analog Video With using 6 x 10 bits 27MHz video DACs CVBS PAL NTSC Negative synchronised 1Vpp 75W loaded S VIDEO 1Vpp 75W loaded c AT 0 286 Vpp NTSC 0 300Vpp PAL loaded or Through 4 pin MiniDIN S VIDEO connector RGB CVBS Through Full Euroscart Output Pin 8 Control Audio Type Dolby Digital out and Downmix LPCM DTS Di...

Page 4: ...D Video VCD 1 1 2 0 and SVCD Unified track buffer and A V decoding buffer Direct interface of 32 bit SDRAM Servo controller and data channel processing Video Related Features Macrovision 7 1 for NTSC PAL interlaced video Simultaneous composite video and S video outputs or composite and YUV outputs or composite and RGB outputs 8 bit CCIR 601 YUV 4 2 2 output Decodes MPEG video and MPEG2 main profil...

Page 5: ... is based around an Futaba VFD and a common NEC front panel controller chip uPD16311 The MT1379 controls the uPD16311 using several control signals clock data chip select The infrared remote control signal is passed directly to the MT1379 for decoding 3 5 REAR PANEL A typical rear panel is included in the reference design This rear panel supports Six channel or two channel audio outputs Optical an...

Page 6: ...XW IRU 75 0 1 K5 3 0287 QDORJ 2XWSXW VW DQG QG JHQHUDO 3 0 RXWSXW 9 3RZHU 9 SRZHU SLQ IRU LQWHUQDOO IXOO GLJLWDO FLUFXLWU 02 QDORJ 2XWSXW LVN PRWRU FRQWURO RXWSXW 3 0 RXWSXW 02 QDORJ 2XWSXW HHG PRWRU FRQWURO 3 0 RXWSXW QSXW 0RWRU DOO VHQVRU LQSXW QRXW a 0 65 38 0LFURFRQWUROOHU DGGUHVV QRXW a 0 65 38 0LFURFRQWUROOHU DGGUHVV QRXW a 0 65 0LFURFRQWUROOHU DGGUHVV GDWD 9 3RZHU SRZHU SLQ IRU LQWHUQDO GLJ...

Page 7: ... 2 63 RXWSXW 6 7 QRXW 0 3 607 XGLR VHULDO GDWD 5 7UDS YDOXH LQ SRZHU RQ UHVHW IDFWRU WHVW PRGH QRUPDO PRGH 6 7 QRXW 0 3 607 XGLR VHULDO GDWD VXUURXQG 5 7UDS YDOXH LQ SRZHU RQ UHVHW 6 7 QRXW 0 3 607 XGLR VHULDO GDWD FHQWHU OHIW 7UDS YDOXH LQ SRZHU RQ UHVHW 6 7 QRXW 0 3 607 XGLR VHULDO GDWD VXUURXQG 5 7UDS YDOXH LQ SRZHU RQ UHVHW YLGHRLQ GDWD SRUWE 6 7 QRXW 0 3 607 XGLR VHULDO GDWD FHQWHU OHIW 7UDS ...

Page 8: ...8 4 2 SYSTEM BLOCK DIAGRAM A sample system block diagram for the MT1379 DVD player board design is shown in the following figure ...

Page 9: ...nsfer of video frames stored in memory to the internal TV encoder of the MT1379 The output section consists of a programmable CRT controller capable of operating either in Master or Slave mode The video output section features internal line buffers which allow the outgoing luminance and chrominance data to match the internal clock rates with external pixel clock rates easily facilitating YUV4 2 2 ...

Page 10: ...S interface supports the 112 128 192 256 384 and 512 sampling frequency formats where sampling frequency Fs is usually 32 kHz 44 1 kHz 48 kHz 96 kHz or 192 kHz The audio samples for the I2 S transmit interface can be 16 18 20 24 and 32 bit samples For Linear PCM audio stream format the MT1379 supports 48 kHz and 96 kHz Dolby Digital audio only supports 48 kHz The MT1379 incorporates a built in pro...

Page 11: ... 20 à Composite Video Out 21 à Shield Some cheaper SCART cables use unshielded wires which is just about acceptable for short cable lengths For longer lengths shielded co ax cable become essential Scart Signals Audio signals 0 5V RMS 1K output impedance 10K input impedance Red Green Blue 0 7Vpp 2dB 75R input and output impedance Note that the Red connection pin 20 can alternatively carry the S Vid...

Page 12: ...sync The latter is sent to the TV on pin 19 This signal is useful when using a TV to display the RGB output of devices such as home computers with TV compatible frame rates Tying the signal to 5V via 100R forms a potential divider with the 75R termination holding the signal at around 2V Alternatively if a TTL level 0 to 5V negative sync pulse is available this will be high during the display perio...

Page 13: ... feed op amps on the back panel 13 2 FRONT PANEL All the functions on the front panel are controlled by U7 MT1379 on the mainboard U7 sends the commands to IC2 uPD16311 via socket PL1 pins 3 4 and 5 There are 16 keys scanning function 2 LED outputs 1 Stand by output and VFD drivers on IC2 Pin 52 is the oscillator pin and is connected via R5 56K LED D6 is red in stand by mode and green when the dev...

Page 14: ...st 6 lines contains current VERSION information 5th line is for customers Other lines Sub Ver 8032 Servo Risc for factory use only 5th line contains build information example EF82p 5th line contains hardware option example C2FN1 bin Press DISPLAY button on remote control to exit hidden menu 5th line also shows CD update file name It defines also Hardware options 14 3 BUILD NAMES FOR HARDWARE OPTIO...

Page 15: ...D message for a few second 7 Tray is open automatically 8 No need for CD in tray Take it from tray 9 During upgrade procedure CD upgrade start Please wait indicator at OSD and UPG indicator at VFD 10 Upgrade procedure takes about a few minutes please wait if tray is open 11 When CD update is finished tray is closed screen is refreshed update is finished NOTE For NERO Burning Rom program ideal conf...

Page 16: ...16 ...

Page 17: ...p Select Version for Version Page First 6 lines contains current VERSION information 5th line is for customers Other lines Sub Ver 8032 Servo Risc for factory use only 5th line contains build information example EF82p 5th line contains hardware option example C2FN1 bin Press DISPLAY button on remote control to exit hidden menu 5th line also shows CD update file name It defines also Hardware option...

Page 18: ...18 16 CIRCUIT SCHEMATICS 16 1 MAIN BOARD 12MB10F3 DV SV80H SHEET 1 7 ...

Page 19: ...19 12MB10F3 DV SV80H SHEET 2 7 ...

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Page 25: ...25 16 2 POWER BOARD ...

Page 26: ...26 16 3 SCART BOARD ...

Page 27: ...27 16 4 FRONT PANNEL ...

Page 28: ... be reproduced stored in aretrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher SHARP CORPORATION AV Systems Group Quality Reliability Control Center Yaita Tochigi 329 2193 Japan ...

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