Sound 1 & Scart Dvd Test; Sound 2 Test; Basic Engine; Version Number - Yamaha DVD-S520 Service Manual

VideoColDencOn) and asking the user for confirmation.
The display shows the following message:
Figure 13
By pressing PLAY, the user confirms the test; pressing
PAUSE will indicate the picture was invisible or incorrect.
Pressing NEXT will proceed to the next test
2.2 SOUND 1 & SCART DVD TEST
The first soundtest is performed by starting a pink noise
sound that needs confirmation from the user (nucleus
AudioPinkNoiseOn); the display shows the following
message very shortly:
Figure 14
This sound will only be audible from version cut3.1 of
Sti5505(item7503 on mono board) onwards. After starting
up sound 1, SCART loop-trough will be simultaneously
active during this test. SCART loop-trough will be
measured with the aid of an external video source.
When entering the SCART loop-trough, the local display
indicates:
Figure 15
On the TV screen, a colour bar (generated by nucleus
VideoColDencOn) is visual and the internally generated
pinknoise is audible. By pressing PLAY, the user confirms
the test; pressing PAUSE will indicate the sound was
inaudible or incorrect. Pressing NEXT will proceed to the
next test; if the user presses NEXT without pressing PLAY
or PAUSE first, the result of this test will be TRUE (sound
ok). By pressing the NEXT button, there will be switched
over to the external source, this must become now visible
on the TV screen (using the SCART). The local display
indicates:
Figure 16
The internally generated colour bar is still available on the
CVBS and Y/C outputs. And the pinknoise-signal is still
available on the cinch audio outputs. By pressing the
PREV button, the internal generated colour bar becomes
visual again.
The test can be left by pressing the NEXT key for more
than one second.

2.3 SOUND 2 TEST

The second soundtest is performed by producing a sine
sound (nucleus AudioSineOn). The signal can be stopped
by pressing the STOP-key. The display shows the
following message:
Figure 17
By pressing PLAY, the user confirms the test; pressing
PAUSE will indicate that something went wrong. To
proceed NEXT, press the STOP key first, press the NEXT
key second and wait five seconds.

3 BASIC ENGINE

note) Basic engine means DVD mechanism.

3.1 VERSION NUMBER

In the basic engine tests, the version number of the Basic
Engine will be shown first, as the following example:
Figure 18
By pressing the NEXT key, the Basic Engine tests are
started.
3.2 TRAY TEST
First, the tray is tested. The purpose of this test is also to
give the user the opportunity to put a disc in the tray of the
DVD player. Some tests on the Basic Engine require that a
disc (e.g. DVD MPTD test disc) is present in the player. At
the end of the Basic Engine tests, this tray test will be
repeated solely to enable the user to remove the disc in
the tray. The local display looks as follows:
Figure 19
By pressing PLAY or PAUSE, the user can toggle the
position of the tray. Note that this test will not contribute to
DVD-S520/DV-S5450
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