Yamaha AW2400, Руководство по обслуживанию

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AW2400
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3-3. Jitter Measurement
Parameters: Measure the jitter of DIGITAL OUT with DSA-1.
q
Jitter should be WORD CLOCK SOURCE
5 nsec or below
w
INT 44.1 kHz FIX 5 nsec or below.
e
INT 48kHz FIX 5 nsec or below.
r
D.ST IN 44.1 kHz 15 nsec or below.
t
D.ST IN 48 kHz 15 nsec or below.
y
SLOT IN 44.1 kHz 15 nsec or below.
3-4. Recording/Playback, Sounding Test
3-4-1. 24TRACK Recording/Playback Test
Record music data from an external device such as CD
player on TR1~TR24 and then check if they can be played
back by listening to them.
Do not save the recorded song data.
3-4-2. Metronome Playback Test
Listen to the metronome sounds if they are properly played.
3-4-3. EFFECT Test
EFFECT LIBRARY (Check by EFFECT 1,3).
001: Reverb Hall
015: Symphonic
019: HQ Pitch (EFFECT1 only)
026: Dyna. Filter
Recall the above and check the signal with sound effect for
at least 15 seconds.
Check that the SE sound is properly played and that no
noise is contained.
3-4-4. Reading Test for CD-RW drive disk data
Insert a disk in the drive and read the data on the disk.
(1) Insert an audio CD in the CD-RW drive.
(2) Press the [CD] key, and then the [F2] key to select the
CD PLAY screen.
(3) Turn on the CD PLAY MODE and check if TRACK No.
and TIME are displayed at the TRACK TIME to the
right.
3-5. FAN operation check
Check the fan operation after turning on the power.