Disc Motor Test(Visual Test); Focus Test(Visual Test); Radial Test(Visual & Listening Test); Jump Test(Listening Test) - Philips DVD 950 Service Manual

GB 50 7. DVD 950
Figure 7-22

DISC MOTOR TEST(visual test)

The third Basic Engine test tests the disc motor (nucleus
BeDiscMotorOn); the local display looks as follows:
Figure 7-23
By pressing PLAY the user confirms that the disc motor is
running; pressing PAUSE indicates the disc motor does not
work. Pressing NEXT proceeds to the next test, after a reset of
the disc motor (nucleus BeDiscMotorOff). If the user presses
NEXT before pressing PLAY or PAUSE, the result of this test
will be TRUE (disc motor is running).

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 7-24
By pressing PLAY the user confirms that the focussing was
succesful; pressing PAUSE indicates a focussing failure.
Pressing NEXT proceeds to the next test after a reset of the
focussing (nucleus BeFocusOff); if NEXT is pressed before
PLAY or PAUSE, the result of this test will be TRUE (focus
successful).
RADIAL TEST(visual & listening test)
The fifth Basic Engine test tests the radial functionality (nucleus
BeRadialOn); the local display looks as follows:
Figure 7-25
By pressing PLAY the user confirms that the radial function
worked; pressing PAUSE indicates the function does not work.
Pressing NEXT proceeds to the next test, after a reset of the
radial (nucleus BeRadialOff). If the user presses NEXT before
pressing PLAY or PAUSE, the result of this test will be TRUE
(radial successful).
DIAGNOSTIC SOFTWARE : SCRIPT INTERFACES
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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:
Figure 7-26
The user can switch between the three different types of
groove settings by pressing PLAY (forward to next nucleus in
the list In-Mid-Out) or PAUSE (backward in the list In-Mid-Out).
This is done in a cyclic manner; note that this test will not
contribute to the test result of the Basic Engine. Pressing NEXT
proceeds to the next test, after the disc motor has been shut off
with a call to nucleus BeDiscMotorOff.
TRAY TEST
As a last action for the Basic Engine tests, the tray test is
repeated. The local display will look as follows:
Figure 7-27
This test is meant to give the user the opportunity to remove the
disc in the tray. The tray position can be toggled using the
PLAY and PAUSE key. The tray will be closed (by the software,
if it is open) before proceeding to the next test when the user
presses the NEXT key.
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