Akai A-5181, Service Manual

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No. Test item Requirement
1 Analog output level(V) (Virtual value) 1.0~2.0v
20Hz ±1
125Hz ±1
1KHz ±1
10KHz ±1
18KHz ±1
2 Audio amplitude/frequency response (dB)
20KHz ±1
3 Audio SNR (dB) (A) ≥ 90
4 Audio distortion and noise (dB) (1KHz) ≤ -65
5
Dynamic Range (dB) (1KHz)
≥ 80
6 Cross-Sound base wave (dB) ≥ 80
≤
1 7 1KHz Channel Balance (dB)
≤
-50 8 Intermodulation Distortion (dB)
9 Frequency error (dB) ±0.02
0
-10
-20
-40
10
Level non-linear (dB)
-60
4-1
±1
11 Digital out level (V) (Vp-p) 0.5±0.05
12 12 -4.53 ± 1
12
De-bass function (dB)
disc 784
13 13 -9.04 ± 1
DTS
0dB 1KHz
output Level
Amplitude Response
under
0dB output
level (dB)
(20Hz-20KHz)
DOLBY
Reference Level
Reference Level
Amplitude Response
+0.5/-1.0(dB)
(20Hz-20KHz)
FL
FR
C
SL
SR
13
AUDIO
FEA
T
U
RE
DTS Test DOLBY Test
SW
14 Output Intensity (iput 1KHz 20mVp-p)
2.5±0.5 V
≤
0.5 15 Distortion and Noise (%)
120Hz ±3
16 Frequency Response (dB)
5KHz ±3
17
MIC
Frequency error (dB)
≥
45
18
Short Read Time (Sec)
≤
5
≤
10 19
Long Read Time (Sec)
20
oth
e
r
Max Power Consumption (W)
15
Electrical Performance Standards