Philips DVD963SA manual Audio Output, Video Output

Page 67

Circuit Descriptions and List of Abbreviations

DVD963SA

 

9.

 

EN 81

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 (items 7500 and 7502). It 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 16 (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.

Image 67
Contents DVD-Video Player ContentsDVD963SA /001 /171 /691 Technical Specifications and Connection Facilities SpecificationsDolby Safety Instructions, Warnings and NotesSafety Instructions Laser Device UnitMechanical Service HintsInstructions Exploded View Exploded ViewComPair Service HintsSwitched Mode Power Supply Service PositionsPurpose of Dealer Script Diagnostic Software, Trouble Shooting and Test InstructionsNucleus Contents of Dealer Script DealerscriptStructure of Player Script Contents of Player ScriptPlayer Script Purpose of Player Script SurveyLED Test Remote Control TestDisplay PCB Display Test5 P50 Loop-Back Test 162037.epsOne second Picture Test Sound 2 Test Diagnostic Software, Trouble Shooting and Test InstructionsMono PCB Digital Part Test can be left by pressing the Play key for more thanBasic Engine Error Bits Error Log See Table onLoop Test See Table Below SSM Error Codes Uart Error CodesBe Errors Slph Error CodesReprogramming of New Mono Boards SMA Error CodesActivation Menu and Command Mode InterfaceCommand Overview of Nuclei Set-up Physical Interface Components Hardware requiredRef. # Reference Name Remark Processor and peripherals Ref. # Reference Name RemarkComponents Ref. # Reference Name Remark Audio Ref. # Reference Name RemarkMenus Layout of Menu and SubmenuSecond Level Submenus First Level SubmenusAudio Nuclei Error Error text Code Nuclei Error CodesThird Level Submenus Basic Engine Nuclei Error Code Error text Error Error text CodeError Code Error text Processor & Peripherals Nuclei Error Code Error text Display PWB Nuclei Error Code Error textMiscellaneous Nuclei Error Code Error text Log Nuclei Error Code Error textVideo Nuclei Error Error text Code Audio Mute Check Test Instruction Front Display and Audio/ Video BoardSupply Check Clock CheckCommand Ref.# Name Remarks Killlr signal Ref.# Command Name Remarks Audio outputRef.# Command Name Remarks Command Ref.# Name Remarks Audio outputPersonal Notes Block Diagram DVD963SA Block and Wiring DiagramWiring Diagram DVD963SA Scart SwitchTestpoint Overview A/V Board Testpoint Overview Display Panel Testpoint OverviewP-Scan Board Power Supply Unit DVD963SA Electrical DiagramsAV-Board Clock & Control SYS CLK & ControlAV-Board Upsampling UpsamplingAudio DAC AV-Board Current to Voltage Converter Current to Voltage ConverterAV-Board Audio AV AudioAV-Board Video and Scart AV Video and ScartLayout AV-Board Top Side Layout AV-Board Overview Bottom Side Layout AV-Board Part 1 Bottom Side Layout AV-Board Part 2 Bottom Side Display Panel Display PanelLayout Display Panel Top Side Layout Display Panel Overview Bottom Side Layout Display Panel Part 1 Bottom Side PartLayout Display Panel Part 2 Bottom Side PartScan Board Line Doubler ScanLineDoublerScanE ncoder 1003-B C9 Scan Board Video OutputPart Layout P-Scan Board Overview Top SideLayout P-Scan Board Part 1 Top Side Layout P-Scan Board Part 2 Top Side Layout P-Scan Board Overview Bottom Side Layout P-Scan Board Part 1 Bottom Side Layout P-Scan Board Part 2 Bottom Side Layout Standby Board Top Side Standby BoardLayout Standby Board Bottom Side Double Scart Panel Switching Only for EU models SwitchingScart Part CL1653200795a.eps CL1653200795b.eps Layout Double Scart panel Only for EU models Part 1 Top Side Layout Double Scart panel Only for EU models Part 2 Top Side Introduction Power Supply UnitAlignments Circuit Descriptions and List of AbbreviationsOver-voltage Protection Loader/Mono Board for diagrams seePrimary Current Sensing Under-voltage ProtectionBack-end the Digital Part Loader InterfaceServo Processor/Decoder Interface/Program MemoryBasic Engine Interface Sacd DSD processorAudio data input/output Interface Video Output Audio OutputClock Factory Power Supply diagram M7Miscellaneous Audio/Video A/V Board Reset CircuitVCR/STB/etc Progressive Scan BoardDouble Scart DVD PlayerControl and Display Panel ASD Abbreviation listIC Data Diagram Power Supply TY72011P2 item16 AK4103VF IC7203 Diagram A2 AK4103VF IC720317 CS4362 IC7300 Diagram A3 CS4362 IC730018 FLI2301 item Diagram P1 FLI2301 itemMechanical /171 Spare Parts ListMechanical /001 SD4.00SA ModuleRC22H IC SM 74LVC04ADB Phse Front PWBScan PWB Spare Parts ListScart PWB Revision List ErrataManual 3122 785
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