Yamaha 01x Service Manual page 68

O1X
3. Test Entry
3.1 Test entry
To enter the TEST mode, operate the buttons on the panel of the
main unit according to the following procedure.
1
Turn on the power while pressing the [UTILITY] and
[AUDIO] buttons, and the messages appear on the display
in the order as shown below.
<Start-up screen>
YAMAHA O1X DIGITAL MIXING STUDIO
(C)2003 YAMAHA CORPORATION
Keep pressing the [UTILITY] and [AUDIO] keys until this
message appears.
O1X (C) 2003 YAMAHA CORPORATION
BUILT DATE: 2003/**/**
When the [UTILITY] and [AUDIO] buttons are released,
the following message appears on the display.
##### O1X DIAGNOSTICS PROGRAM ##### ______________-----
01:CPU MEMORY
<Execution item select screen>
##### O1X DIAGNOSTICS PROGRAM ##### ______________-----
02:SWITCH
KNOB-1 KNOB-3 KNOB-5
68
BOOT OS:V#.###
FIRM OS:V#.###
AUDIO UTILITY
KNOB-7 KNOB-8
2
When executing a test, select the test item by turning
[KNOB-1] and execute testing by pressing [KNOB-8].
3
When the test item is completed as OK and when it is
terminated before the end, pressing the [KNOB-7] or
[KNOB-8] brings back the menu screen. On this screen, the
test result is displayed in the test item space, that is, "O":
completed as OK, "X": terminated before the end, " ": not
checked yet, "-": testing not applicable. Also, when
completed as OK, the next check item is displayed on the
LCD. The selected item flashes.
4
When [RECALL] is pressed, the check item name is
displayed in the screen of the check items to be executed in
the upper section.
3.2 Other functions
The moving fader can be shifted to the positions as listed below
by pressing the corresponding keys. This function is usable for
RECALL
the operation check of the fader.
[AUDIO]: +6dB
circuit board.)
[INST]: 0dB
board.)
RECALL
[MIDI]: -20dB
board.)
[BUS/AUX]: -∞
STANDBY/ON
circuit board.)
The condition of the word clock and I/O connection of DSP at
the time of starting are as follows.
Even when a check item requiring a change of these conditions
is executed, these conditions are restored when that check is
over.
Word clock: 48KHz Internal
DSP I/O: AD5-8->DA1-4, AD1-2->Digital Out
3.3 Confirmation of version
To check the version of the BOOT OS and FIRM OS, turn on
the power while pressing the [UTILITY] button. The version is
displayed on the LCD.
([AUDIO] is SW201 on the PN2
([INST] is SW202 of the PN2 circuit
([MIDI] is SW203 of the PN2 circuit
([BUS/AUX] is SW204 of the PN2