DVD-S520/DV-S5450
DVD-S520/DV-S5450
Check the video outputs at the following testpoints:
Name
B_VID
G_VID
R_VID
CVBS out
S-Video-C out
S-Video-Y out
Y out
U out
V out
Testpoint
TP1
TP2
TP3
TP14
TP15
TP16
TP17
TP18
TP19
All waveforms can be refer to the waveform diagram in the
c h a p t e r “ D i a g n o s t i c S o f t w a r e d e s c r i p t i o n a n d
troubleshooting”.
1.5 Play And 16/9 Detection
Check DC voltage at S-Video-chroma output (pin 4) with a
6K8 ohm load and Scart connector (pin 8) and change the
0/6/12 input (1010-8) using the following commands:
Ref.#
25a
25b
25c
Command
Name
VideoScartLo
VideoScartMi
VideoScartHi
Remarks
Sends out 0V
±
0.5V
Sends out 6V
±
10%
Sends out 12V
±
10%
Chroma output
<0.1V
2.0V
±
10% with
load
5.0V
±
10%
without load
<0.1V
1.6 Kill Circuit
To check the functionality of the Kill circuitry,the audio
outputs has to be present by the following command:
Ref.#
21a
Command
Name
AudioPinkNoise
On
Remarks
Audio Pinknoise
ON
Audio output
Pink Noise on 6
channels
Check the audio outputs at the audio cinch of the AV board
:PinkNoise
Activate the Kill circuit by using the following command:
Ref.#
19a
Command Name
AudioMuteOn
Remarks
Audio Mute On
Check the audio outputs at the audio cinch of the AV board
: No waveform
Switch off the kill circuit by using the following command:
Ref.#
19b
Command Name
AudioMuteOff
Remarks
Audio Mute Off
Check the audio outputs at the audio cinch of the AV board
:PinkNoise
19
To toggle between ON and OFF,use the following
commands:
Ref.#
19a
19b
Command
Name
AudioMuteOn
AudioMuteOff
Remarks
Audio Mute On
Audio Mute Off
1.3 Audio DAC And Amplifier
Ensure that the Audio mute signal is OFF
To check the DAC and buffer amplifier,send the following
commands:
Ref.#
21a
----
20a
20b
Command
Name
AudioSineOn
Press stop
button
AudioPinkNoise
On
AudioPinkNoise
Off
Remarks
Audio Sine
signal ON
Audio Sine
signal OFF
Audio
Pinknoise ON
Audio
Pinknoise OFF
Audio output
Sine,1Khz on
stereo
No waveform
Pink Noise on
6 channels
No waveform
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
LRCLK
SCLK
PCM_CLK
PCM_OUT0
PCM_OUT1
PCM_OUT2
SPDIF
Front L/R out-Audio cinch
H/P L/R out
Analog out -Audio cinch
Testpoint
TP8
TP9
P10
TP7
TP27
TP28
TP11
TP13
TP20
TP25
All waveforms can be refer to the waveform diagram in the
c h a p t e r “ D i a g n o s t i c s o f t w a r e d e s c r i p t i o n a n d
troubleshooting”.
1.4 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.#
23a
61a
61b
23b
Command Name
VideoColDencOn
VideoColOutRGB
VideoColOutYUV
VideoColDencOff
Remarks
Colour DENC ON
RGB Colourbar
YUV Colourbar
Colourbar DENC OFF
Summary of Contents for DVD-S520
Page 90: ...DVD S520 DV S5450...
