Yamaha 01x, Руководство по обслуживанию

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57
O1X
Pressing the encoder switch [KNOB-8] corresponding to
NO will start operation without initialization.
In this case, the fader set value is also cleared. As a result,
when starting the next time, the following message appears.
ERROR : Fader control parameter crashed!
Use deault setting OK
Then, press the encoder switch [KNOB-8] corresponding
to OK for starting. (The same message appears whenever
starting until this setting is made.)
(2) When clearing the backup data other than the fader
setting value
While pressing the "SCENE" and "UTILITY" buttons, turn
on the power (keep pressing until the following message
appears on the screen).
Do you want initialize backup data? YES NO
Pressing the encoder switch [KNOB-7] corresponding to
YES will execute initialization.
Pressing the encoder switch [KNOB-8] corresponding to
NO will start operation without initialization.
2. Check Items
There are two types of inspections; in the DIAG mode and in
the regular mode.
2.1 DIAG Mode
2.1. 01 CPU MEMORY
2.1. 02 SWITCH
2.1. 03 SWITCH (PN )
2.1. 04 SWITCH (RE )
2.1. 05 ENCODER
2.1. 06 ENCODER (PN )
2.1. 07 ENCODER (RE )
2.1. 08 LED
2.1. 09 LED (PN )
2.1. 10 LED (RE )
2.1. 11 LCD
2.1. 12 DSP6
2.1. 13 DSP7
2.1. 14 mLAN
2.1. 15 W. CLOCK
2.1. 16 DIGITAL I/O
2.1. 17 AD14DA14 (48k )
2.1. 18 AD58DA14 (48k )
2.1. 19 AD14DA14 (96k )
2.1. 20 AD58DA14 (96k )
2.1. 21 MUTE
2.1. 22 FADER LEVEL
2.1. 23 SWITCH (DM)
2.1. 24
2.1. 25
2.1. 26
2.1. 27
2.1. 28
2.1. 29
2.1. 30 FADER AGING
2.1. 31 DSP PATCH
2.1. 32 mLAN PATCH
2.1. 33 MIDI–B
* Check items of 2.1.31 and 2.1.32 are not necessary when
performing inspections.
Note) For the inspection procedure in the DIAG mode, refer
to "TEST PROGRAM".
For the judgment criteria for the analog inspections (2.1.17
to 2.1.20) and fader inspections (2.1.22 and 2.1.30), refer to
the following section.
Analog inspections
(1) Precautions for measurement
1) Use the 20kHz LPF when measuring the distortion.
2) Use the 12.7kHz LPF when measuring the noise level
and cross talk.
3) When measuring the noise level, short between No.2
and No.3 pins of the XLR connector of INPUT 1 and 2
terminals with a 150
Ω
resistor while applying no input
to INPUT 3 to 8 (HI - Z) terminals.
4) Set the MONITOR OUT VR knob to the max position
unless otherwise specified.
(2) Items to be measured
Use 2.1.17, 19 AD14DA14 (**k) of DIAG for measurement
at INPUT 1 to 4 terminals and 2.1.18, 20 AD58DA14 (**k)
at INPUT 5 to 8 (HI - Z) terminals.
Measure HI - Z input cross talk in the DIAG mode transition
state.
1) INPUT1 (BAL XLR)
Measure at INPUT1 → MONITOR OUT L.
• LINE gain (INPUT GAIN VR knob at LINE)
Input 1kHz + 4dBu
Output level -10dBV
±
3dB
Distortion 0.02% or less
LR channel to channel cross talk
Input 1kHz + 4dBu
Output level -80dBV or less
Frequency response
Input 20Hz to 20kHz +4dBu
Output level within -3 to +1dB (1kHz as reference)