Philips DVD763SA/021 manual Test Instruction Front Display and Audio/ Video Board, Supply Check

Page 25

EN 40

 

5.

 

DVD763SA

Diagnostic Software, Trouble Shooting and Test Instructions

5.9Test Instruction Front Display and Audio/ Video Board

These test instruction is designed specifically for SACD 2002 single disc models which has the following outputs:

•6 Channel Audio output

•Coaxial / Optical digital output

•CVBS

•Component output YUV

•SVHS

•Double SCART output

•Front Display

5.9.1General

•All the waveforms measurement carried out in these test instruction will be base on the testpoint indicated in the A/V Board and Front Display schematic diagram in the Service manual.

•Impedance of the measuring-equipment should be > 1MΩ

•Most of the tests can be done using either the Diagnostic software “ Player script” which can be found in the chapter “Diagnostic Software description and troubleshooting” or the Menu interface using the Service PC with a terminal emulation program ( e.g. Window Hyperterminal ) where it is possible to control the execution of the Diagnostic Nuclei

•Setup for the measurement will be done in set level with all modules connected as shown in the Wiring Block diagram.

5.9.2General Start-Up Measurement

Supply Check:

Before starting the measurement,ensure that all power supply are connected to the A/V and Front Display board via conn.1420 and 1127 respectively.

Pin nr.

A/V Board

Front Display

Voltage

Conn. 1420

Conn. 1127

 

 

 

1

+3V3_Power

-

 

 

 

2

+3V3_Power

-

 

 

 

3

GND

-

 

 

 

4

+12V_Power

-

 

 

 

5

+12VSTBY

-

 

 

 

6

GND

+5VSTBY

 

 

 

7

+5VSTBY

+12V_Power

 

 

 

8

GND

-32V_Power

 

 

 

9

-12V_Power

-

 

 

 

10

GND

-

 

 

 

11

-32V_Power

-

 

 

 

12

 

-

 

 

 

Clock Check

Ensure the present of the clock to the DAC and the slave µP.

Clock Name

Testpoint

Frequency

PCM_CLK

I117

11.2896MHz ± 0.02% tolerance

 

 

 

XOUT

S1

8MHz ± 0.2% tolerance

 

 

 

Audio Mute Check

Measure the Audio mute voltage input at pin 22 of connector 1421

Status

Value

AudioMuteOn

HIGH (>3V)

 

 

AudioMuteOff

LOW (<3V)

 

 

To toggle between ON and OFF,use the following commands:

 

Command

 

Ref.#

Name

Remarks

 

 

 

19a

AudioMuteOn

Audio Mute On

 

 

 

19b

AudioMuteOff

Audio Mute Off

 

 

 

5.9.3Audio DAC And Amplifier

Ensure that the Audio mute signal is OFF

To check the DAC and buffer amplifier,send the following commands.

Ref.#

Command Name

Remarks

Audio output

21a

AudioSineOn

Audio Sine

Sine,1Khz on

 

 

signal ON

stereo

 

 

 

 

----

Press stop button

Audio Sine

No waveform

 

 

signal OFF

 

 

 

 

 

20a

AudioPinkNoiseOn

Audio

Pink Noise on

 

 

Pinknoise ON

6 channels

 

 

 

 

20b

AudioPinkNoiseOff

Audio

No waveform

 

 

Pinknoise OFF

 

 

 

 

 

The audio signal ( sine or pink noise ) will also be present on the digital output ( SPDIF ).This can be checked by connecting digital signal to an amplifier with digital input.

Check the I2S and audio signal at the following testpoints:

Name

Testpoint

PCM_LRCLK

I115

 

 

PCM_SCLK

I116

 

 

PCM_CLK

I117

 

 

SDT1

I114

 

 

SDT2

I112

 

 

SDT3

I110

 

 

DIG_OUT

I499

 

 

STEREO L/R OUT

I330 / I333

 

 

FRONT L/R OUT

I336 / I339

 

 

SURROUND L/R OUT

I348 / I351

 

 

CENTRE OUT

I345

 

 

SUB WOOFER L/R OUT

I342

 

 

All waveforms can be refered to the A/V board schematic diagram.

5.9.4 Video Output And Buffer Amplifier

Check DC output-level at all video cinch output : 1.0V DC ± 10%

Generate a color bar using the following software commands:

Ref.#

Command Name

Remarks

23a

VideoColDencOn

Colour DENC ON

 

 

 

23b

VideoColDencOff

Colourbar DENC OFF

 

 

 

Check the video outputs at the following testpoints:

Name

Testpoint

GREEN_Y

I502

 

 

BLUE_U

I491

 

 

RED_V

I494

 

 

CVBS out_Mono

I480

 

 

C_Mono

I483

 

 

Y_Mono

I482

 

 

ll waveforms can be refered to the A/V board schematic diagram.

5.9.5Play and 16/9 Detection

Check DC voltage at S-VIDEO-CHROMA output (pin 4) with a 6k8 ohm load and SCART connector 1403 (pin 16) and change the SCART0 and SCART1 input using the following commands:

Ref.#

Command Name

Remarks

25a

VideoScartLo

Sends out 0V ± 0.5V

 

 

 

25b

VideoScartMi

Sends out 6V ± 10%

 

 

 

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Contents DVD-Video Player ContentsDVD763SA /001 /021 /051 Technical Specifications and Connection Facilities SpecificationsSafety Instructions Safety Instructions, Warnings and NotesLaser Device Unit DolbySwitched Mode Power Supply Service HintsService Positions ComPairTopCover 300 Remove 4 screws 310 MechanicalDVD Module 145 Remove flex connections to A/V board Lift module up slightly and moveMechanical- and Dismantling Instructions Nucleus Contents of Dealer Script Diagnostic Software, Trouble Shooting and Test InstructionsDealerscript Purpose of Dealer ScriptPlayer Script Contents of Player ScriptPurpose of Player Script Structure of Player ScriptDisplay PCB Remote Control TestDisplay Test LED Test5 P50 Loop-Back Test 162037.epsSound 1 & Scart DVD Test Picture Test Sound 2 TestBasic Engine Loop Test See Table Below Error BitsBe Errors Uart Error CodesSlph Error Codes SSM Error CodesReprogramming of New Mono Boards SMA Error CodesCL 26532053056.eps Command Overview of Nuclei Menu and Command Mode InterfaceSet-up Physical Interface Components Hardware required Processor and peripherals Ref. # Reference Name Remark Basic diagnostic nuclei Ref. # Reference Name RemarkComponents Ref. # Reference Name Remark Audio Ref. # Reference Name RemarkVideo Ref. # Reference Name Remark Log Error logging in Nvram Ref. # Reference Name RemarkDisplay slave processor Ref. # Reference Name Remark Miscellaneous Ref. # Reference Name RemarkActivation Layout of Menu and SubmenuMenus First Level SubmenusThird Level Submenus Second Level SubmenusError Code Error text Nuclei Error CodesAudio Nuclei Error Code Error text Basic Engine Nuclei Error 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 Code Error text Furore Nuclei Error Code Error textSupply Check Test Instruction Front Display and Audio/ Video BoardClock Check Audio Mute CheckCommand Ref.# Name Remarks Killlr signal Command Ref.# Name Remarks Audio outputKill Circuit Digital SilencePersonal Notes Block Diagram DVD763SA EU Block and Wiring DiagramWiring Diagram DVD763SA EU CL 26532053011.eps AV Board Testpoint Overview170502 Power Supply Unit DVD763SA EU Electrical DiagramsAV-Board Clock & Control I200 I201 I221 AV-Board Video DAC200mV / div AC 10ms / divAV-Board Audio I231 I234 AV-Board VideoI403 I406 I407 I421 I422 I423 I480CL 26532053009.eps Layout AV-Board Overview Top Side260402 Layout AV-Board Part 1 Top Side Layout AV-Board Part 2 Top Side Part Layout AV-Board Overview Bottom SideCL 26532053010.eps CL 2653205310a.eps Layout AV-Board Part 1 Bottom SideCL 2653205310b.eps Layout AV-Board Part 2 Bottom SideDVD763SA 30521-Front Board Display Panel Layout DVD763SA 30521-Front Board Overview Bottom Side Layout DVD763SA 30521-Front Board Top SideCL 26532039021.eps 200302CL 2653203921a.eps Layout DVD763SA 30521-Front Board Part 1 Bottom Side210302 CL 2653203921b.eps Layout DVD763SA 30521-Front Board Part 2 Bottom SideLayout DVD763SA 30521-Front Board Standby Panel DVD763SA 30521-Front Board Standby Panel6200 1202 1200 1201 1200 1201 1202 6200Switching Panel TP1A Bvid out TP2A Gvid out Scart PanelTP14 Cvbs out 500mV/div ACLayout Scart Board Overview Top Side Layout Scart Board Part 1 Top Side Layout Scart Board Part 2 Top Side Alignments Power Supply UnitCircuit Descriptions and List of Abbreviations IntroductionPrimary Current Sensing Loader/Mono BoardUnder-voltage Protection Over-voltage ProtectionServo Processor/Decoder Loader InterfaceInterface/Program Memory DVD Back-end ProcessorBasic Engine Interface Sacd DSD processorAudio data input/output Interface Video Output Audio OutputClock Factory Power Supply diagram M7Miscellaneous Audio/Video A/V Board Reset CircuitStandby LED Control and DisplayKey Matrix IR ReceiverAbbreviation list IC Data Diagram Power Supply TY72011P2 Block Diagram itemTY72011P2 Pinning item Various Spare Parts ListSD 4.00SACH Module VariousRC22H RST SM Front PWBScart PWB

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

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