Bose Companion 3 Series II Servicehandleiding - Pagina 23

Blader online of download pdf Servicehandleiding voor {categorie_naam} Bose Companion 3 Series II. Bose Companion 3 Series II 36 pagina's. Multimedia speaker system
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Bose Companion 3 Series II Servicehandleiding
Test Equipment required:
1. Audio Signal Generator
2. Oscilloscope
3. Digital Multimeter
Test Set up
Connect the satellites to the output jacks on the bass module.
Connect the control pod to the DIN jack on the bass module.
Connect a signal generator to the audio input cable and connect the cable to the input jack on the
bass module.
1. Bass Module Air Leak test
1.1 Apply a 40 mVrms, 40 Hz signal to the input of the bass module.
1.2 Set the volume knob on the control pod to maximum (fully clockwise), and set the bass control to
the center detent (flat) position.
1.3 Listen carefully for air leaks along all glued joints, around the heat sink, connectors and at the
woofer mounting location.
1.4 Repair any air leaks around the heat sink and connectors. Replace any bass module that has air
leaks around the bass box or woofer mounting location.
2. Bass Module Sweep Test
2.1 Apply a 200 mVrms, 100 Hz signal to the input of the bass module.
2.2 Set the volume knob on the control pod to maximum (fully clockwise), and set the bass control to
the center detent (flat) position.
2.3 Listen carefully as you sweep the bass module from 100 Hz to 300 Hz, then from 300 Hz to 100
Hz.
2.4 Listen carefully for buzzes, rattles, or other extraneous noises from the woofer, cabinet, plastic
trim parts, or heat sink. A slight whooshing sound from the port at approximately 45 Hz is acceptable.
2.5 Repair any noise heard from around the heat sink and connectors. Replace the bass module if it
has noises from the woofer or cabinet area.

Test Procedures

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