Table of Contents
Advertisement
LMY4-MLF
QQ
3 7 63 1515 0
2.
INSPECTION
2-1. Option card ID
Conduct an ID check when power is activated after the card is inserted. 7-segment LED in front of AI8 displays the left digit = (slot
number) and right digit = (card type). This will be displayed for 8 slots in sequence, so visually check that it is recognized as LMY2-
MLAB. Also WordClock source currently locked will be finally displayed, so check that it is in the state of Int 48 kHz. Likewise,
check that 7-segment LED in front of AO8 is in the final state of WordClock source = Input A.
Activate power in debug mode.
Display the card type every second.
TE
L 13942296513
Word Clock source type
2-2. Gain/Frequency Characteristics/Distortion Ratio (CH1, CH2, CH3, CH4)
AI8
Input level
GAIN setting
78 dB
-55 dBu
66 dB
-43 dBu
54 dB
-31 dBu
48 dB
-25 dBu
36 dB
-13 dBu
18 dB
+5 dBu
12 dB
+11 dBu
+23 dBu
0 dB
+10 dBu
www
(*1): It is based on the time of input 1 kHz.
2-3. Difference in Each CH Level (CH1, CH2, CH3, CH4)
Specify the range of the gain difference at 1 kHz measured in the above 2-2 as follows.
.
Specified range
Within 1 dB
14
http://www.xiaoyu163.com
AI8
(SLOT 1=LMY4-MLF)
(SLOT 1=LMY4-MLF)
(Int 48 kHz)
1 kHz
+23 ± 1.0 dBu
−
x
ao
u163
y
i
http://www.xiaoyu163.com
2 9
8
AO8
Activate power in debug mode.
Display the card type every second.
(No need to check)
GAIN lead check every second
(No need to check)
Q Q
3
6 7
1 3
1 5
Word Clock source type
(Input A)
Tolerance level (output level)
20 Hz
-3.0∼+1.0 dB（*1）
−
−
−
-2.0∼+1.0 dBu（*1）
-3.0∼+1.0 dB（*1）
−
−
-2.0∼+1.0 dB（*1）
−
co
.
9 4
2 8
0 5
8
2 9
9 4
2 8
Tolerance level (THD)
20 kHz
1 kHz
less than 0.05 %
−
−
−
less than 0.03 %
−
−
less than 0.007 %
−
less than 0.02 %
m
9 9
9 9
Advertisement
Table of Contents
