Bose FreeSpace 3 서비스 매뉴얼 - 페이지 8

{카테고리_이름} Bose FreeSpace 3에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Bose FreeSpace 3 15 페이지. Ceiling install kit
Bose FreeSpace 3에 대해서도 마찬가지입니다: 설치 관리자 매뉴얼 (15 페이지), 애플리케이션 노트 (2 페이지), 설치 매뉴얼 (12 페이지), 설치 매뉴얼 (13 페이지), 디자인 매뉴얼 (4 페이지), 디자인 매뉴얼 (4 페이지), 빠른 시작 매뉴얼 (2 페이지)

페이지 인쇄

Note: The input voltage should be the

actual voltage present at the input, and not

the open circuit generator output.

Refer to the connection diagrams on page 6

for the proper connection configuration.

1. Bass Module Air Leak Test

Note: Use the 4 Ohm setup connection for

the following test procedures.

1.1 Apply a 6 Vrms, 50 Hz signal to mono

input terminals of the bass module. Do not

connect the satellite speakers.

1.2 Listen carefully for air leaks from

around the front and rear end caps, all

cabinet seams and the terminal plate. Air

leaks will be heard as a hissing or sputter-

ing sound. Test duration should be 5 sec-

onds minimum. All repairs must be hidden.

2. Woofer Phase Test

2.1 Apply a 6 Vrms, 50 Hz signal to the

stereo input terminals of the bass module.

2.2 While the signal is being applied to the

bass module, remove the input to one of

the stereo terminals.

2.3 The sound output level should drop by

approximately half. If the sound output level

increases, stays the same, or stops com-

pletely, then there is a wiring problem at the

crossover assembly or woofers.

TEST PROCEDURES

3. System Sweep Test

3.1 Set up the system as shown in

Figure 2 stereo setup settings.

3.2 Apply a 6 Vrms, 10 Hz signal to the

stereo input terminals of the bass module.

3.3 While listening to the output of the

system, sweep the input frequency slowly

from 10 Hz to 500 Hz. The output should

crossover from the bass module to the

satellites speakers.

Note: A whooshing noise from the bass

module port at around 40 Hz and 160 to

180 Hz is acceptable.

3.4 Reduce the input level to 3 Vrms.

3.5 Continue sweeping from 500 Hz to 15

kHz. Listen for a clean, undistorted output

from each satellite assembly. Replace any

satellite that buzzes or sounds distorted.

Note: The FreeSpace

woofer and satellite speakers are not

repairable. If you have a defective bass

module or satellite speaker, it must be

replaced.

4. 70/100 Volt Input Test Procedure

Note: This test is only to check that the

transformer connections are functioning.

4.1 Apply a 13 Vrms, 50 Hz signal to the 70

Volt input terminals.

4.2 Sweep the input frequency from 50 Hz

to 500 Hz.

4.3 Apply a 13 Vrms, 50 Hz signal to the

100 Volt input terminals.

4.4 Repeat procedure 4.2.

3 bass module