Inspections - Yamaha IPA8200 Service Manual

■ INSPECTIONS

1. Test Conditions
Measuring Voltage
Normal temperature : From 10 °C to 35 °C
Normal humidity
Load
2. Electrical Characteristic
No. Item
1 Output Power
2 Signal to Noise Ratio Input short
3 T.H.D
4 Frequency Response
5 Crosstalk
6 Residual Noise
7 GAIN Switch
8 HPF Switch
9 Idle Output Power
Consumption
10 1/8 Output Power
Consumption
(NOTE) 0 dBu = 0.775 Vrms
: AC 100V 50/60 Hz (J)
: AC 120V 60 Hz (U)
: AC 230V 50 Hz (B, E)
: AC 220V 50 Hz (O)
: AC 220V 60 Hz (K)
: From 45 % to 85 %
: 4 Ω
Input Conditions
All channel input
All channel input
MODE switch "BRIDGE"
GAIN switch "32 dBu"
All channel input
Input: A, B, C, D, E, F, G, H to adjacent
channel
Measured channel, Input impedance =
GAIN switch "32 dBu"
Attenuator: Minimum
Input impedance = 150 Ω
GAIN switch "32 dBu"
Input: 1 kHz, -10 dBu
Ref: Switch "OFF"
No input
Input all channel
1 kHz, sine wave
INPUT
Attenuator
MUTE switch
GAIN switch
HPF switch
MODE switch
FILTER
Output Conditions
1% T.H.D. Output
Ref: 1 kHz, 1 % T.H.D. Output
Load: 4 Ω
Measure with A weighted
1 kHz
Half power
Ref: 1 kHz, 1 W Output
20 Hz
Load: 8 Ω
No Filter
20 kHz
Ref: 1 kHz
Half power output
Load 8 Ω
600 Ω
Load: 8 Ω
Measure with A weighted
Ref: Switch "26 dBu"
Load: 8 Ω
Ref: Switch "OFF"
20 Hz
1 W Output
Load 8 Ω
55 Hz
Load: 4 Ω
Ref: 25 W output
Load: 4 Ω
: 1 kHz
: All channel maximum
: All channel OFF
: "26 dBu"
: "OFF"
: "STEREO"
: DIN – Audio
Nominal
4 Ω 210 W
8 Ω 120 W
8 Ω B.T.L. 420 W
101 dB
4 Ω 0.1 %
8 Ω 0.1 %
-1 dB
-1 dB
70 dB
-72 dBu < -70 dBu
Switch "26 dB" 16 dBu 16 ±2 dBu
Switch "+4 dBu" 1.2 dB 1.2 ±2 dB
Switch "32 dB" 6.0 dB 6.0 ±2 dB
Switch "20 Hz" -3.2 dBu -3.2 ±2 dB
Switch "55 Hz" -3.2 dBu -3.2 ± 2 dB
67 W
360 W
IPA8200
Limit
> 200 W
> 100 W
> 400 W
> 100 dB
< 0.5 %
< 0.5 %
> -1.5 dB
< 0 dB
> -1.5 dB
< 0 dB
> 60 dB
70 W
± 10 %
< 400 W
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