Philips DVD763SA/001 Service Manual page 26

Diagnostic Software, Trouble Shooting and Test Instructions
Ref.# Command Name Remarks
25c VideoScartHi
5.9.6 Kill Circuit
To check the functionality of the Kill circuitry,the audio outputs
has to be present by the following command:
Command
Ref.# Name
21a AudioSineOn
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:
Ref.# Command Name Remarks
19a AudioMuteOn
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:
Ref.# Command Name Remarks
19b AudioMuteOff
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:
Command
Ref.# Name
21a AudioSineOn
--- Press STOP
button
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"
Ref.# Command Name
30a DispDisplay
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.
Sends out 12V ± 10%
Remarks Audio output
Audio Sinewave ON 1kHz tone
Audio Mute On
Audio Mute Off
Remarks KILL_LR signal
Audio Sinewave LOW (<0.3V)
ON
Audio Sine HIGH (>4.5V)
signal OFF
Remarks
Turn ON local display
DVD763SA 5. EN 41