Pioneer CDX-MG6036ZH, Руководство по обслуживанию

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49
CDX-MG6036ZH
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Turning the Test Mode On and Off
1
Turn the power on while depressing the [EJECT] key.
Release the [EJECT] key 5 seconds after powering
on. (If the [EJECT] key is being depressed when you
hit the reset start key, the test mode will be automat-
ically be turned on.)
2
Turn the source (CD) on.
3
As the test mode is turned on, “55” will be displayed
by the track number indicator. At this time, the disc
number indicator will display the number of the disc
selected.
4
Turn Backup or Acc off once, then turn it on again to
cancel the test mode.
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[Important] Display and Bus Data While the Test
Mode is On
* In order to operate the test mode from the currently
marketed Head unit which is not equipped with a
test mode command output function, the same bus
communication as that in the normal operation
mode is carried out with the Head unit. And, as long
as the test mode is on, it is connected as the chang-
er (single CD player in normal mode).
* If the servo test mode or the mechanical test mode is
selected, display of the disc number will be fixed at
“6”. This arrangement has been employed because
the Head unit on the H-BUS does not output the cor-
responding command when one of the [1] to [6]
keys is depressed if the depressed one is identical to
the displayed disc number (for instance, if “DISC 4”
is displayed, pressing the [4] key does not output
the corresponding command). Thus, when the test
mode is started, check the currently selected disc
number before turning on the servo test mode or
the mechanical test mode (namely, turn the above
mode on when “55” is displayed). Turning off the
servo test mode or the mechanical test mode
restores the display shown in
3
above.
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[Important] Precautions on Key Operations in Test
Mode
* If you press one of the [1] to [5] keys while the dis-
play is fixed at “DISC 6”, the Head unit displays the
depressed key number once. Thus, don’t try to
operate any keys until the “DISC 6” display is
restored, It takes 3 to 4 seconds.
Example: If you depress the [5] key when “D = 6 and
TR = 99” are displayed, the display will sequentially
change as shown below:
“D = 5, TR = 00” -> “D = 6, TR = 00” -> “D = 6, TR =
??” (now you can proceed to the next operation).
* If you depress the [RPT] or [ASEL] key, the RPT or
ASEL LED on the indicator comes on once, then it
goes off in 3 to 4 seconds. Therefore, don’t try to
operate keys until the LED goes off.
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[Important] Other Precautions
* Due to a slower bus communication rate, data dis-
played on the track number indicator may fail to
catch up with the mechanical status changes. This
is especially true when the mechanism is operated
in the test mode. So, when operating the system in
the mechanical test mode, you should monitor the
changes after removing the top plate.
* When turning on the servo or mechanical test mode
with the disc inserted, be sure to insert the disc
while the normal mode is on, that is, before starting
the test mode.
* The common SEEK key is used for the [FF/REV] and
[UP/DOWN] functions on the Head unit. Thus, when
operating the [FF/REV] key, you need to hold the
SEEK key down for at least 0.5 seconds. When the
[FF/REV] operation is validated, beep will sound and
the mechanism starts. If the SEEK key is released
before the 0.5-second elapse time, it will be mistak-
en as the UP/DOWN operation, resulting in +1 incre-
menting (or-1 decrementing) of the value displayed
on the track number indicated. In this case, leave as
is and the original display will be restored in several
seconds.