Philips Comprehensive Guide and Circuit Descriptions for DVD Players

Page 64

EN 78

9.

DVD963SA

Circuit Descriptions and List of Abbreviations

 

 

 

 

 

 

9.3

Loader/Mono Board (for diagrams see

 

 

K

 

SD4.00SA_CH Service Manual)

 

 

 

 

 

 

 

 

 

 

 

R

 

 

 

 

Loader

 

 

 

2.5V

 

 

DVDalas2+

Loader-interface

 

 

 

A

 

-END

 

 

 

 

 

 

CL 96532065_071.eps

 

FRONT

 

 

 

 

 

 

130799

 

HF

 

Iguana

Program

 

 

 

 

 

 

 

 

 

Buffer

(front-end

Memory

 

 

 

 

 

 

 

 

 

Figure 9-2 TL431

 

 

 

processor)

 

 

 

 

 

 

 

 

 

This reference component has two functions:

 

 

 

I2S

S2B

 

• A very stable and accurate reference diode

 

 

 

 

 

• A high gain amplifier.

 

 

HF

 

 

SMI

When the output voltage increases (due to a reduction in the

 

 

STi55XX

 

 

 

 

 

 

(SDRAM)

load), the voltage across RSENSE-2(R3290/R3291) increases to

 

 

 

 

END

 

(back-end

 

above the internal reference voltage of 2.5V. The TL431 will

 

EMI

 

processor)

 

 

 

 

-

 

 

 

(FLASH)

conduct and the current through the opto-coupler will increase.

BACK

 

 

 

PCM

 

 

 

 

 

 

 

This results in an increase of the voltage at pin 4 of IC1, which

 

 

 

 

 

 

 

 

 

will reduce the 'on' time of Q1(FET 7125). In the event of an

 

FURORE 2

 

 

 

output voltage decrease (due to an increase in the load), the

 

 

Video

Others

 

Audio

 

 

 

 

 

control circuit will operate in the opposite way.

 

 

 

 

 

Primary Current Sensing

 

 

 

 

Module

 

The current through FET Q1 will result in a voltage drop across

 

 

 

Interface

 

 

 

 

 

CL 26532053_022.eps

RSENSE-1 (R3120-23). This line goes to pin 11 of IC7130,

 

 

 

 

 

 

 

 

260402

which is the current sense input. The higher the input voltage,

 

 

 

 

 

the more the primary current is limited. In this way, the

 

Figure 9-3 Block Diagram Loader/Mono board

maximum output power of the power supply is limited.

 

 

 

 

 

 

The SD4.00_SA_CH (SACHI_4) is the 2nd generation Philips

Under-voltage Protection

Architectural Standard Design of SACD mono board based on

If the supply voltage at pin 13 of IC7130 drops below 7.2V

Furore 2, and will be used in the new generation of SACD

(typical), e.g. due to a shorted secondary voltage or excessive

players. It is designed in a multi-task way so that it can support

load, the drive pulse at pin 12 is disabled and the controller will

the following optional main functions:

switch 'off'.

• SD4.00_SA_CH: Support SACD player with 5-disc

 

 

changer.

Over-voltage Protection

• SD4.00_SA: Support SACD player with single-disc.

An internal over-voltage protection circuitry continuously

SD4.00_CH: Support DVD player with 5-disc changer but

monitors the Vcc pin. If, after start-up, this voltage exceeds

 

without SACD playback.

40V, the internal latch circuit is triggered, the output buffer is

• SD4.00_SA_I2C: Support SACD player with single-disc

disabled, and the SMPS goes into over-voltage protection.

 

and I2C slave.

Now a complete restart sequence is required.

The SD4.00_SA_CH (SACHI_4) module consist of the

Note: If the event of the over-voltage situation remains present,

the SMPS will go in sequence of protection, start-up, protection

following key components:

and the cycle repeats. This effect is highly audible.

1. OPU: Mercury 2 Loader VAL6011/14 (slim type) for a

 

 

single-disc SACD player, or DVD VAM6001/14 mechanism

 

 

for a 5-disc SACD changer.

 

2. Front-end:M2 Basic Engine.

 

3. Back-end:DVD Host Processor STi55xx and Furore 2

 

 

SACD DSD/DST decoder.

 

4. Power supply: To convert the PSU voltages to the correct

 

 

values.

 

5. Reset circuit: This circuit that the booting of the several

 

 

devices on the mono board takes place in the correct order.

 

9.3.1 The Optical Pick-up Unit (OPU)

 

The Mercury 2 Loader has an optical unit consisting of two

 

lasers:

 

• One for CD with a wavelength of 780 nm.

 

• One for DVD with a wavelength of 650 nm.

 

The TZA1033 (item 7105) controls the data from these lasers,

 

and the supply to them.

 

9.3.2 Front-end: the Servo Part

 

The front-end consists of:

 

The Loader interface

Image 64
Contents DVD-Video Player ContentsDVD963SA /001 /171 /691 Specifications Technical Specifications and Connection FacilitiesSafety Instructions, Warnings and Notes Safety InstructionsLaser Device Unit DolbyMechanical Service HintsInstructions Exploded View Exploded ViewService Hints Switched Mode Power SupplyService Positions ComPairDiagnostic Software, Trouble Shooting and Test Instructions Nucleus Contents of Dealer ScriptDealerscript Purpose of Dealer ScriptContents of Player Script Player ScriptPurpose of Player Script Survey Structure of Player ScriptRemote Control Test Display PCBDisplay Test LED Test162037.eps 5 P50 Loop-Back TestDiagnostic Software, Trouble Shooting and Test Instructions Mono PCB Digital PartTest can be left by pressing the Play key for more than One second Picture Test Sound 2 TestBasic Engine Error Bits Error Log See Table onLoop Test See Table Below Uart Error Codes Be ErrorsSlph Error Codes SSM Error CodesSMA Error Codes Reprogramming of New Mono BoardsMenu and Command Mode Interface Command Overview of NucleiSet-up Physical Interface Components Hardware required ActivationProcessor and peripherals Ref. # Reference Name Remark Components Ref. # Reference Name RemarkAudio Ref. # Reference Name Remark Ref. # Reference Name RemarkLayout of Menu and Submenu MenusFirst Level Submenus Second 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 Display PWB Nuclei Error Code Error text Processor & Peripherals Nuclei Error Code Error textMiscellaneous Nuclei Error Code Error text Log Nuclei Error Code Error textVideo Nuclei Error Error text Code Test Instruction Front Display and Audio/ Video Board Supply CheckClock Check Audio Mute CheckRef.# Command Name Remarks Audio output Ref.# Command Name RemarksCommand Ref.# Name Remarks Audio output Command Ref.# Name Remarks Killlr signalPersonal Notes Block and Wiring Diagram Block Diagram DVD963SAScart Switch Wiring Diagram DVD963SATestpoint Overview A/V Board Testpoint Overview Display Panel Testpoint OverviewP-Scan Board Electrical Diagrams Power Supply Unit DVD963SASYS CLK & Control AV-Board Clock & ControlUpsampling AV-Board UpsamplingAudio DAC Current to Voltage Converter AV-Board Current to Voltage ConverterAV Audio AV-Board AudioAV Video and Scart AV-Board 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 Part Layout Display Panel Part 1 Bottom SidePart Layout Display Panel Part 2 Bottom SideScanLineDoubler Scan Board Line DoublerScanE ncoder Scan Board Video Output 1003-B C9Layout P-Scan Board Overview Top Side PartLayout 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 Switching Double Scart Panel Switching Only for EU modelsScart 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 Power Supply Unit AlignmentsCircuit Descriptions and List of Abbreviations IntroductionLoader/Mono Board for diagrams see Primary Current SensingUnder-voltage Protection Over-voltage ProtectionLoader Interface Servo Processor/DecoderInterface/Program Memory Back-end the Digital PartBasic Engine Interface Sacd DSD processorAudio data input/output Interface Audio Output Video OutputClock Factory Power Supply diagram M7Miscellaneous Reset Circuit Audio/Video A/V BoardProgressive Scan Board Double ScartDVD Player VCR/STB/etcControl and Display Panel Abbreviation list ASDDiagram Power Supply TY72011P2 item IC DataDiagram A2 AK4103VF IC7203 16 AK4103VF IC7203Diagram A3 CS4362 IC7300 17 CS4362 IC7300Diagram P1 FLI2301 item 18 FLI2301 itemSpare Parts List Mechanical /001SD4.00SA Module Mechanical /171RC22H Front PWB IC SM 74LVC04ADB PhseSpare Parts List Scan PWBScart PWB Revision List ErrataManual 3122 785
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