Bose 802c Service Manual download pdf (Page 10)

10

TEST PROCEDURES

4.4 Apply a 100Hz, 500mVrms signal to

the input of the 802C.

4.5 Reference a dB meter to the 302 AMP

output jacks (while in the Bi-Amp mode).

4.6 Refer to the frequency response table

below and verify the response of the unit.

6. Noise Test

6.1 All noise measurements are ANSI

A-weighted true rms, with the inputs

shorted.

6.2 Refer to the table below for the proper

noise levels.

5. Distortion Test

Note: Total harmonic distortion must be

measured in all modes to assure proper

operation.

5.1 Apply a 750Hz, 5Vrms signal to the

input of the 802C.

5.2 Refer to the table below for the distor-

tion specification for the corresponding

mode being tested.

Note: For the Bi-Amp 302 reading the

input signal should be a 100Hz, 5Vrms

signal.

Frequency Output Tolerance

55Hz +3.7dB ± 1.5dB

100Hz 0dB

(reference)

-

230Hz -8.3dB ± 1.5dB

750Hz -25.8dB ± 2.5dB

302 Bi-Amp Frequency Response Table

Output Frequency. Distortion

802 Full

Range

750Hz <0.1%

302 Passive 750Hz <0.1%

802 Bi-Amp 750Hz <0.1%

302 Bi-Amp 100Hz <0.1%

Distortion Table

Noise Table

Output Noise

802 Full

Range

<20uV

302 Passive <20uV

802 Bi-Amp <20uV

302 Bi-Amp <10uV

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 19 20

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