Marantz SA-12S1, Service Manual

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10
5. Diagnostic software, trouble shooting and test instructions
Due to the complexity of the SACD player, the time to find a
defect in the player can become long. To reduce this time, the
player has been equipped with Diagnostic and Service
software (DS). The DS offers functionality to diagnose the
SA-12S1 player hardware and tests the following:
• Interconnections between components
• Accessibility of components
• Functionality of the audio and video paths
This functionality can be accessed via several interfaces:
1.
End user/Dealer script interface
2. Player script interface
3. Menu and command interface
5.1 END USER/DEALER SCRIPT INTERFACE
5.1.1 Description
The End user/Dealer script interface gives a diagnosis on a
stand alone SACD player; no other equipment is needed.
During this mode, a number of hardware tests (nuclei) are
automatically executed to check if the player is faulty. The
diagnosis is simply a "fail" or "pass" message. If the message
"FAIL" appears on the display, there is apparently a failure in
the player. If the message "PASS" appears, the nuclei in this
mode have been executed successfully. There can be still a
failure in the player because the nuclei in this mode don't
cover the complete functionality of the player.
5.1.2 Contents
The End use/Dealer script executes all diagnostic nuclei that
do not need any user interaction and are meaningful on a
standalone SACD player. The nuclei called in the End user/
Dealer script are the following:
Figure 5-1
5.2 PLAYER SCRIPT INTERFACE
5.2.1 Description
The Player script will give the opportunity to perform a test
that will determine which of the SACD player’s modules are
faulty, to read the error log and to perform an endurance loop
test. To successfully perform the tests, the SACD player
must be connected to a TV set, a multi-channel amplifier, a
set of 6 boxes and an external video source to check the
output of a number of nuclei.
To be able to check results of certain nuclei, the player script
expects some interaction of the user (i.e. to approve a test
picture or a test sound). Some nuclei (e.g. nuclei that test
functionality of the Basic Engine module) require that the
SACD player itself is opened, to enable the user to observe
moving parts and approve their movement visually.
Only tests within the scope of the diagnostic software will be
executed hence only faults within this scope can be detected.
5.2.2 Structure of the Player Script
The player script consists of a set of nuclei testing the
hardware modules in the SACD player: the Display PWB, the
Digital PWB, the Basic Engine, the DAC PWB and the AV
PWB.
Nuclei run by the player test need some user interaction; in
the next table this interaction is described. The player test is
done in two phases:
Interactive tests: this part of the player test depends
strongly on user interaction and input to determine
nucleus results and to progress through the full test.
Reading the error log information can be useful to
determine any errors that occurred recently during
normal operation of the DVD player.
The loop test will perform the same nuclei as the dealer
test, but it will loop through the list of nuclei indefinitely.
Display
Count-
down Nucleus
number Nucleus name
7 104 Host Decoder SDRAM Write Read
6 123 Host Decoder I2C NVRAM
5 500 Front Panel Echo
4 601 Basic Engine Echo
3 1200 Furore SDRAM Low Write Read
2 1201 Furore SDRAM High Write Read
1 1300 DAC Board I2C Test
Hold 2 keys
<OPEN/CLOSE>
+ <PAUSE>
simultaneously pressed and
switch player on.
Switch player off.
During the test, the following display
is shown: the counter counts down
from the number of nuclei to be run
before the test finishes. Example:
SET O.K.?
YES
NO
To exit DEALER SCRIPT, switch player off.
CL 06532152_007.eps
051200