Yamaha AD8HR AD User Manual
14
Appendix
■ LED Level Meter
Error Messages
The AD8HR automatically diagnoses itself at the time of power up. If it detects a system abnormality,
one of the following error messages appears. If an abnormality is detected, consult your Yamaha dealer.
one of the following error messages appears. If an abnormality is detected, consult your Yamaha dealer.
E1:
The backup battery voltage is low. If the voltage is lowered further, the stored data will be erased. Ask
your dealer to replace the battery.
your dealer to replace the battery.
E2:
The backup memory is corrupted.
E3:
The backup battery voltage is very low and the backup memory is corrupted.
DIGITAL OUT A/B Pin Assignment Table
Input
Output
Conditions
MIN
TYP
MAX
UNITS
INPUT 1–8
DIGITAL OUT 1–8
OVER red LED: ON
0
dBFs
–6 amber LED: ON
–6
dBFs
–12 amber LED: ON
–12
dBFs
–18 amber LED: ON
–18
dBFs
–30 green LED: ON
–30
dBFs
–48 green LED: ON
–48
dBFs
Parameter
Conditions
MIN
TYP
MAX
UNITS
Sampling
Frequency
Frequency
Frequency Range
Normal Rate
39.69
50.88
kHz
Double Rate
79.38
101.76
kHz
Jitter of PLL
DIGITAL IN fs=44.1kHz
10
ns
DIGITAL IN fs=48 kHz
10
ns
DIGITAL IN fs=39.69–50.88 kHz
20
ns
DIGITAL IN fs=88.2 kHz
10
ns
DIGITAL IN fs=96 kHz
10
ns
DIGITAL IN fs=79.38–101.76 kHz
20
ns
Internal
Clock
Clock
Frequency
word clock : int 44.1 kHz
44.1
kHz
word clock : int 48 kHz
48
kHz
word clock : int 88.2 kHz
88.2
kHz
word clock : int 96 kHz
96
kHz
Accuracy
word clock : int 44.1 kHz
50
ppm
word clock : int 48 kHz
50
ppm
word clock : int 88.2 kHz
50
ppm
word clock : int 96 kHz
50
ppm
Jitter
word clock : int 44.1 kHz
5
ns
word clock : int 48 kHz
5
ns
word clock : int 88.2 kHz
5
ns
word clock : int 96 kHz
5
ns
Signal Delay
analog input to digital output
@fs=48 kHz
0.9
ms
@fs=96 kHz
0.45
ms
Signal
Data In Ch
*1
*1. Data In Ch can be received only on DIGITAL OUT A.
Data Out Ch
Open
GND
1–2
1–2
3–4
5–6
7–8
Pin
Hot
1
5
6
7
8
2, 3, 4, 9,11,
15, 16, 17
10, 12, 13,
22, 23, 24, 25
Cold
14
18
19
20
21
25
14
13
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