6 kill circuit, Table, 7 digital silence – Philips DVD763SA/001 User Manual

Page 26: 8 front display, 9 ir receiver, 10 p50 interface

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Diagnostic Software, Trouble Shooting and Test Instructions

EN 41

DVD763SA

5.

5.9.6

Kill Circuit

To check the functionality of the Kill circuitry,the audio outputs
has to be present by the following command:

Check the audio outputs at the audio cinch of the A/V and
SCART board: 1kHz tone.

Activate the Kill circuit by using the following command:

Check the audio outputs at the audio L/R cinch and SCART of
the A/V and SCART board respectively:
No waveform
Switch off the kill circuit by using the following command:

Check the audio outputs at the audio L/R cinch and SCART of
the A/V and SCART board: 1kHz tone

5.9.7

Digital Silence

Digital silence is a signal from the audio DAC, MFL, when there
is no input to the audio DAC, or when the player is in STOP/
PAUSE mode, or during disc changing track.

To check the MFL signal, use the following command and
check the voltage level at pin 41 of 7200:

5.9.8

Front Display

To check the segment display of the FTD, the following
command can be used. And for full detail description of the test,
refer to the chapter of “Diagnostic Software Player Script”
which can be found in chapter “Diagnostic Software
Description and Troubleshooting”

5.9.9

IR Receiver

Check at pin 22 of 7101 and observe if this line switches from
LOW (<0.3V) to HIGH (>4.5V) when pressing a key on a philips
RC5 or RC6 remote control

5.9.10 P50 Interface

P50 (or Easylink) is a bi-directional serial interface for
communication between video equipment. To check for the
functionality of the P50 Interface, refer to the chapter of
‘Diagnostic Software Player Script’ for full detail description.

25c

VideoScartHi

Sends out 12V

±

10%

Ref.#

Command
Name

Remarks

Audio output

21a

AudioSineOn

Audio Sinewave ON 1kHz tone

Ref.#

Command Name

Remarks

19a

AudioMuteOn

Audio Mute On

Ref.#

Command Name

Remarks

19b

AudioMuteOff

Audio Mute Off

Ref.#

Command
Name

Remarks

KILL_LR signal

21a

AudioSineOn

Audio Sinewave
ON

LOW (<0.3V)

---

Press STOP
button

Audio Sine
signal OFF

HIGH (>4.5V)

Ref.#

Command Name

Remarks

30a

DispDisplay

Turn ON local display

Ref.#

Command Name

Remarks

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