Philips DVD763SA/051, DVD763SA/001, DVD763SA/021 manual Audio Output, Video Output

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Circuit Descriptions and List of Abbreviations

DVD763SA

 

9.

 

EN 71

Stereo PCM data output. Two possible stereo sources can be selected as stereo PCM output:

1.Stereo PCM coming from the STi55xx via the PCM input on Furore.

2.Stereo or down-mix-PCM derived via a decimation filter from the SACD-DSD signal.

Digital audio output interface (IEC958). The IEC958 format is intended to connect the DVD736SA to a digital receiver. No DSD signals are defined for IEC958, therefore the 'DSD-->PCM converted' signal is transmitted. Following two types of signals are possible on the digital interface:

1.IEC958 data coming from the STi55xx.

2.IEC958 data (stereo or down-mix-PCM) derived via a decimation filter from the SACD-DSD signal.

Clock + reset input. Two different processing clocks and a reset pulse are needed:

1.Sys_clk: System clock for data processing part, frequency can be 27 MHz or 768*FS.

2.384*FS: Processing clock for LLD and post processing.

3.RESETn is an asynchronous reset and should be low for at least 1 period of DSD_CLK.

Memory

SDRAM.

The size of the SDRAM is 64 Mbit.

The SDRAM (items 7500 and 7502) has the following functions:

It is used by the MPEG video decoder as a frame buffer,

It holds the software and the variables used by it.

Flash-ROM.Two 2MB Flash-ROMs (items 7402 and 7403) hold the DVD firmware, and are controlled by pin 186 (FLASH_OEN) of the STi55xx. It must be able to perform a download (by disk or OS-link) in a Flash-only system.

EEPROM. User settings, player settings, and region code are stored in a 32 Kb I2C EEPROM.

Audio Output

The audio interfaces available in SD4.0SA_CH are I2S and S/ PDIF for digital audio output, and I2S karaoke microphone input.

In SACD player, two types of DACs (that are PCM DAC and high end DSD DAC), are used on AV board.

The audio data path to both DACs is routed via the Furore 2.

I2S audio

The STi55xx is capable of 6-channel I2S output. These channels can be configured to output 5.1 Dolby Digital, DTS, etc.

PCM_OUT0: Left and Right.

PCM_OUT1: Centre and LFE (subwoofer).

PCM_OUT2: Left and Right surround.

Two additional channels (available in STi5580 and STi5588) are capable of providing down-mixed stereo.

S/PDIF

The S/PDIF signal level (pin 57, SPDIF_OUT) is 5V TTL at module interface. To meet the complete S/PDIF specifications, an external de-coupling circuit (item 7720, diagram M7) is implemented.

I2S karaoke (optional)

The STi5580 and STi5588 have built-in karaoke processing. The internal karaoke block accepts I2S signal, acting as the master by generating the required KOKPCMCLK frequency. This frequency is always 1/4 the music sampling frequency. An external analogue-to-digital converter (ADC), acting as slave, is required to convert the microphone signals to I2S signals.

CD-DA/DVD Data Path

The data path for CD-DA and DVD is as follows:

I2S data from the M2 basic engine enters the STi55xx.

The STi55xx processes the data, and sends the 6 PCM output channels to Furore 2. The LeRi channels are directly passed to the AV board also.

The switch matrix of the Furore 2 sends the two incoming stereo PCM channels (LeRi) to the AV board.

The switch matrix of the Furore 2 sends the six incoming PCM channels to the high end DAC board.

The mute signal from the STti55xx is directly passed to the AV board. This requires a patch on the mono board.

The IEC958 output of the STi55xx is fed directly to AV board.

The clock distribution is as follows:

The master clock 384FS is received from the high end DAC board.

From this clock the 27 MHz clock for STi5580 and the Furore 2 is derived (Video clock).

From the 27 MHz clock the audio clock (256FS) is derived. The STi55xx and Furore 2 use this clock. For CD-DA FS amounts to 44.1 KHz, for DVD 48 or 96 KHz.

In case of CD-DA, the high end DAC uses its internal clock (384FS). In case of DVD, the switch matrix of Furore 2 sends the audio clock (256FS) to the high end DAC on AV board.

The AV board receives the 256FS clock.

Selection of the audio clock is done in the clock factory. For a description of the clock factory, see paragraph 'Clock Factory'.

SACD Data Path

The data path for DSD/DST is as follows:

I2S data from the basic engine enters the Furore 2.

The Furore 2 processes the data. This results in 6 DSD/ DST channels.

The switch matrix of the Furore 2 sends the 6 DSD/DST channels to the high end DAC on AV board.

The 6 DSD/DST channels are down mixed to a stereo PCM signal.

The switch matrix of the Furore 2 sends the stereo PCM signal to the AV board.

The mute signal from the STi55xx is directly passed to the AV board. This requires a patch on the mono board.

The clock distribution is as follows:

The master clock 384FS is received from the high end DAC on AV board.

From this clock the 27 MHz clock for Sti55xx and Furore 2 is derived (video clock).

From the 27 MHz clock the audio clock (256FS) is derived. The STti5580 and Furore 2 use this clock.

The high end DAC on AV board uses its own XTAL clock (384FS). The 256FS clock to the DAC board is switched off, to prevent for interference.

The AV board receives the 256FS clock.

Selection of the audio clock is done in the clock factory. For a description of the clock factory, see paragraph 'Clock Factory'.

Video Output

Digital video (optional)

Digital YUV output is routed directly from STi55xx ports to a 24- pin connector (item 1704). From the same connector, the HSYNC, VSYNC and 27MHZ_CLK signals are available. The digital YUV connector is the interface to external video processing devices; such as high quality progressive scan codex and high quality video DAC.

Analogue video

The STi55xx is capable of 6-channel analogue video. Three channels (pins 25, 26 and 27) are RGB or YUV format, while the other three channels (pins 32, 33 and 34) are Y, C, and CVBS.

A video output buffer (see diagram M7, e.g. item 7701 for R) is implemented: an 8MHz/16MHz selectable filter stage and a 75drive stage.

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Contents DVD763SA /001 /021 /051 ContentsDVD-Video Player Specifications Technical Specifications and Connection FacilitiesSafety Instructions, Warnings and Notes Safety InstructionsLaser Device Unit DolbyService Hints Switched Mode Power SupplyService Positions ComPairMechanical TopCover 300 Remove 4 screws 310DVD Module 145 Remove flex connections to A/V board Lift module up slightly and moveMechanical- and Dismantling Instructions Diagnostic Software, Trouble Shooting and Test Instructions Nucleus Contents of Dealer ScriptDealerscript Purpose of Dealer ScriptContents of Player Script Player ScriptPurpose of Player Script Structure of Player ScriptRemote Control Test Display PCBDisplay Test LED Test162037.eps 5 P50 Loop-Back TestPicture Test Sound 2 Test Sound 1 & Scart DVD TestBasic Engine Error Bits Loop Test See Table BelowUart Error Codes Be ErrorsSlph Error Codes SSM Error CodesCL 26532053056.eps SMA Error CodesReprogramming of New Mono Boards Set-up Physical Interface Components Hardware required Menu and Command Mode InterfaceCommand Overview of Nuclei Basic diagnostic nuclei Ref. # Reference Name Remark Processor and peripherals Ref. # Reference Name RemarkComponents Ref. # Reference Name Remark Audio Ref. # Reference Name RemarkLog Error logging in Nvram Ref. # Reference Name Remark Video Ref. # Reference Name RemarkDisplay slave processor Ref. # Reference Name Remark Miscellaneous Ref. # Reference Name RemarkLayout of Menu and Submenu ActivationMenus First Level SubmenusSecond Level Submenus Third Level SubmenusAudio Nuclei Error Code Error text Nuclei Error CodesError Code Error text Basic Engine Nuclei Error Code Error text Display PWB Nuclei Error Code Error text Processor & Peripherals Nuclei Error Code Error textLog Nuclei Error Code Error text Miscellaneous Nuclei Error Code Error textVideo Nuclei Error Code Error text Furore Nuclei Error Code Error textTest Instruction Front Display and Audio/ Video Board Supply CheckClock Check Audio Mute CheckCommand Ref.# Name Remarks Audio output Command Ref.# Name Remarks Killlr signalKill Circuit Digital SilencePersonal Notes Block and Wiring Diagram Block Diagram DVD763SA EUWiring Diagram DVD763SA EU 170502 AV Board Testpoint OverviewCL 26532053011.eps Electrical Diagrams Power Supply Unit DVD763SA EUAV-Board Clock & Control AV-Board Video DAC I200 I201 I221200mV / div AC 10ms / divAV-Board Audio AV-Board Video I231 I234I403 I406 I407 I421 I422 I423 I480260402 Layout AV-Board Overview Top SideCL 26532053009.eps Layout AV-Board Part 1 Top Side Layout AV-Board Part 2 Top Side CL 26532053010.eps Layout AV-Board Overview Bottom SidePart Layout AV-Board Part 1 Bottom Side CL 2653205310a.epsLayout AV-Board Part 2 Bottom Side CL 2653205310b.epsDVD763SA 30521-Front Board Display Panel Layout DVD763SA 30521-Front Board Top Side Layout DVD763SA 30521-Front Board Overview Bottom SideCL 26532039021.eps 200302210302 Layout DVD763SA 30521-Front Board Part 1 Bottom SideCL 2653203921a.eps Layout DVD763SA 30521-Front Board Part 2 Bottom Side CL 2653203921b.epsDVD763SA 30521-Front Board Standby Panel Layout DVD763SA 30521-Front Board Standby Panel6200 1202 1200 1201 1200 1201 1202 6200Switching Panel Scart Panel TP1A Bvid out TP2A Gvid outTP14 Cvbs out 500mV/div ACLayout Scart Board Overview Top Side Layout Scart Board Part 1 Top Side Layout Scart Board Part 2 Top Side Power Supply Unit AlignmentsCircuit Descriptions and List of Abbreviations IntroductionLoader/Mono Board Primary Current SensingUnder-voltage Protection Over-voltage ProtectionLoader Interface Servo Processor/DecoderInterface/Program Memory DVD Back-end ProcessorAudio data input/output Interface Sacd DSD processorBasic Engine Interface Audio Output Video OutputMiscellaneous Power Supply diagram M7Clock Factory Reset Circuit Audio/Video A/V BoardControl and Display Standby LEDKey Matrix IR ReceiverAbbreviation list TY72011P2 Pinning item Diagram Power Supply TY72011P2 Block Diagram itemIC Data Spare Parts List VariousSD 4.00SACH Module VariousFront PWB RC22H RST SMScart PWB

DVD763SA/051, DVD763SA/021, DVD763SA/001 specifications

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