Yamaha DVD-C740, Service Manual

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DVD-C740/DV-C6660
DVD-C740
/DV-C6660
5 Basic Engine
5.1 Version Number
Figure 22
5.2 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 will look as follows:
Figure 23
5.3 Sledge Test (Visual Test)
Figure 24
5.4 Disc Motor Test (Visual Test)
The third Basic Engine test tests the disc motor (nucleus
BeDiscMotorOn).
The local display looks as follows:
Figure 25
5.5 Focus Test (Visual Test)
The fourth Basic Engine test tests the focussing. First
focussing is turned on by calling nucleus BeFocusOn.
The display will look as follows:
Figure 26
5.6 Radial Test (Visual & Listening Test)
The fifth Basic Engine test tests the radial functionality (nucleus
BeRadialOn).
The local display looks as follows:
Figure 27
5.7 Jump Test (Listening Test)
The sixth and last Basic Engine test tests the jumping by calling
nuclei BeGroovesIn, BeGroovesMid and BeGroovesOut.
During this test, the local display looks as follows:
By pressing the PLAY/PAUSE key, the Basic Engine tests are
started.
By pressing OPEN/CLOSE the user can toggle the position of
the tray. Note that this test will not contribute to the test result of
the Basic Engine. Pressing PLAY/PAUSE will proceed to the
next test. At this point, the tray will be closed automatically by
the software if it was open.
The second Basic Engine test tests the sledge. The user can
move the sledge as many times as desired by using OPEN/
CLOSE (nucleus BeSledgeOut) and STOP (nucleus
BeSledgeIn). Pressing PLAY/PAUSE on the local keyboard
proceeds to the next test. Note that this test will not contribute to
the test result of the Basic Engine.
The local display will look as follows during the sledge test:
By pressing OPEN/CLOSE the user confirms that the disc
motor is running. Pressing STOP indicates the disc motor
does not work. Pressing PLAY/PAUSE proceeds to the next
test, after a reset of the disc motor (nucleus BeDiscMotorOff).
If the user presses PLAY/PAUSE before pressing
OPEN/CLOSE or STOP, the result of this test will be TRUE
(disc motor is running).
By pressing OPEN/CLOSE the user confirms that the
focussing was successful. Pressing STOP indicates a
focussing failure. Pressing PLAY/PAUSE proceeds to the next
test after a reset of the focussing (nucleus BeFocusOff). If
PLAY/PAUSE is pressed before OPEN/CLOSE or STOP, the
result of this test will be TRUE (focus successful).
By pressing OPEN/CLOSE the user confirms that the radial
function works. Pressing STOP indicates the function does not
work. Pressing PLAY/PAUSE proceeds to the next test, after a
reset of the radial (nucleus BeRadialOff). If the user presses
PLAY/PAUSE before pressing OPEN/CLOSE or STOP, the
result of this test will be TRUE (radial successful).
In the basic engine tests, the version number of the Basic
Engine will be shown first, as in the following example: