Philips DVDR985 Technical Training Manual page 12

Description
The Manual Diagnostics provide the opportunity
to perform tests and exercise the unit in a way
that helps determine which of the DVD
recorder's circuit boards are faulty. If no Errors
are found, it performs an endurance loop test. To
successfully perform the tests, the DVD recorder
must be connected to a TV set. The Servicer
must respond to what is seen and heard on the
monitor. (i.e. to approve a test picture or a test
sound). Some tests require that a DVD+RW disc
be inserted.
Structure of the Player Script
The player script (Manual Diagnostics) tests the
circuit boards in the DVD recorder: the Display
PCB, the Digital PCB, the Analog In/Out PCB
and the Basic Engine.
The Player tests are done in two phases, inter-
active tests and a burn in test. The interactive
tests depend strongly on user interaction and
input to determine the results and to progress
through the full test. The Burn-in Loop test will
perform the same set of tests as the dealer test,
but it will loop through the list indefinitely. Is is
especially usful if you reset the Error Log. You
can do this using ComPair. You can then read
the error codes using ComPair.
Step by Step Description
1
Press OPEN/CLOSE and PLAY buttons at the
same time and provide AC to the recorder to
start the player script. Press Play to perform the
test described on the display. Press Stop to skip
the test and go to the next test. Press Record to
indicate to the Microcomputer the desired result
malfunctioned.
2
Manual Service Diagnostics
(Player Script)
The display shows FP SEGM. Press PLAY to
start the test. First the starburst pattern is lit,
then the horizontal segments are lit, followed by
the vertical segments and the last test lights all
the segments. After each of the four tests, the
user has to confirm that the correct pattern was
lit. Press PLAY to confirm that the correct pattern
was lit (four times if the FPSEGMENTS test was
successful). Press RECORD to indicate that the
correct pattern was not successfully lit. Press
STOP to skip this test.
3
The display shows FPLABELS. All labels should
be lit
4
The display shows FPLIGHT ALL. Everything
should be lit.
5
The display shows FPLED. The LED changes
color.
6
The display shows FP LED. The red Record light
comes on. Press play to confirm it lit.Press
STOP to skip this test.
7
The display shows FPKEYBRD. All keys have to
be pressed to get a positive result! This includes
the Power button. Press PLAY for more than two
seconds to confirm that all the keys were
pressed and that it was shown on the display.
Press STOP for more than one second to skip
this test.
8
The display shows FP REMCTL. Press PLAY to
confirm that a key on the remote control was
pressed and shown on the local display. Only
one key has to be pressed to get a successful
result.
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