Yamaha CL3, Service Manual

Page: 125 / 401

CL3/CL1
125
3-3. Jitter Measurement
Parameters: Use System Two.
Select Sec. PK.
Use 2TR OUT DIGITAL for the inspection.
A. WORK CLOCK INT
Parameters: Select the WORD CLOCK values shown in the
following table.
1
Jitter
WORD CLOCK Permissible Range
INT 44.1 kHz 2 nsec or below
INT 48 kHz 2 nsec or below
B. WORD CLOCK EXT
Parameters: Set WK IN for WORD CLOCK.
For inspection, set the frequency of the oscillator
as in the table below.
1
Jitter (WORD CLOCK IN)
WORD CLOCK Permissible Range
44.1 kHz 5 nsec or below
48 kHz 5 nsec or below
4. Fader Inspection
Parameters: Use the “SEISAN1. CLF” fi le for the “scene data
for fader inspection”
INSPECTIONS
Recall scenes 1 to 4 one by one to operate the fader for the
following check.
Judgment criteria 1:
Check that no fader vibrates when stopping at -
∞ and +10 dB
indications during the above operation.
Check that no fader vibrates while the fader is moving (during
the fading time) when recalling scenes 3 and 4 and that no fader
delays by more than 0.5 % second compared with the adjacent
fader.
Judgment criteria 2:
Check that the fader positions are as follows.
1
When all the faders are at the topmost place.
Make sure that all the faders are within 2 mm from the 10
dB indication.
2
When all the faders are at the lowermost place
Make sure that all the faders are within 2 mm from the - ∞
indication.
5. Sound Check
Check the following items by listening.
1
ANALOG INPUT, ANALOG OUTPUT
Parameters: Check at OMNI IN 1 -> OMNI OUT 7.
Select WORD CLOCK as follows and make sure
that the sound is not interrupted while listening for
15 seconds or longer.
1) DANTE 48 kHz
2) DANTE 44.1 kHz
2
EFFECT function (DSP6 operation check)
Parameters: Use the “SEISAN1.CL5A” file as “sound scene
data”.
Set WORD CLOCK to INT 48 kHz.
Put music signals into DANTE input and listen to
output from PHONES OUT.
To put music signals into DANTE input, use Cubase.
For the details, refer to “DANTE sound output
check” on page 179.
INSPECTIONS
Recall scene 5 (Reverb) and check the signal for at least 15
seconds.
Judgment criteria 1:
Con
fi rm that the EFFECT sound is output.
Judgment criteria 2:
Con
fi rm that the output is free from noise.
In the same manner, recall scenes 6 through 36 and check by
listening.
The scene numbers and EFFECT types are as follows.
scene No. Rack No. EFFECT TYPE
5 1 Reverb
6 1 Symphonic
7 1 HQ Pitch
8 1 Dynamic Filter
9 2 Reverb
10 2 Symphonic
11 2 Dual Pitch
12 2 Dynamic Filter
13 3 Reverb
14 3 Symphonic
15 3 HQ Pitch
16 3 Dynamic Filter
17 4 Reverb
18 4 Symphonic
19 4 Dual Pitch
20 4 Dynamic Filter
21 5 Reverb
22 5 Symphonic