Philips DVD963SA Audio DAC And Amplifier, Ref.# Command Name Remarks Audio output, Name Testpoint

Diagnostic Software, Trouble Shooting and Test Instructions DVD963SA 5. EN 39

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	I112
PCM_SCLK	I114
PCM_CLK	I116
SDT1	I110
SDT2	I106
SDT3	I102
DIG_OUT	I629
STEREO L/R OUT	I510 / I520
FRONT L/R OUT	I552 / I524
SURROUND L/R OUT	I533 / I536
CENTRE OUT	I530
SUB WOOFER L/R OUT	I527

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

	Ref.#	Command Name		Remarks
	25c	VideoScartHi		Sends out 12V ± 10%
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	Remarks		Audio output
	21a	AudioSineOn	Audio Sinewave ON		1kHz tone
	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		Audio Mute On
	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		Audio Mute Off
	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 DAC7301 (MFL,MFR)
	and DAC7300 (MSR/MC),when there is no input to the audio
	DAC, or when the player is in STOP/PAUSE mode, or during
	disc changing track.

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

5.9.4Video 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

	Command
Ref.#	Name	Remarks	KILL_LR signal
21a	AudioSineOn	Audio Sinewave	LOW (<0.3V)
		ON
---	Press STOP	Audio Sine	HIGH (>4.5V)
	button	signal OFF

5.9.8Front Display

Check the video outputs at the following testpoints:

Name	Testpoint
GREEN_SCART	I601
BLUE_SCART	I600
RED_SCART	I602
CVBS out_Mono	I662
C_Mono	I675
Y_Mono	I667

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%

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	Remarks
30a	DispDisplay	Turn ON local display

5.9.9IR Receiver

Check at pin 22 of 7401 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

5.9.10P50 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.