Bose 321 270000 sm rev2 pages38 49

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bose 321 270000 sm rev2 pages38 49

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40 DISASSEMBLY PROCEDURES 3. Bass Module PCB/Heatsink Assembly Removal 3.1 Perform procedure 1. 3.2 On the bass module PCB/heatsink assembly (10), unplug the cables at J3 and J5. Unplug the woofer harness cable at J7. 3.3 Remove the four screws (11) that secure the bass module PCB/heatsink assembly to the enclosure. Lift it out of the enclosure. 3 21 Satellite Array Procedures Note: The standard 321 (non-GS) satellite arrays are non-repairable. The only parts that can be replaced are the grille and the name- plate. 1. Grille Removal 1.1 Wrap some masking tape around the shaft of a flat-tip screwdriver approximately 1/2" back from the end. This is needed to protect the plastic enclosure of the array. 1.2 Place the satellite array on its back on a bench. Use your thumb to press down on the array grille at the center of the curve near the side. At the same time, use the screwdriver to pry the end of the grille off of the array enclosure. Repeat this at the other end of the grille. 2. Nameplate Removal 2.1 Perform satellite array procedure 1. 2.2 On the back of the grille (1), unbend the two metal legs that secure the nameplate (2) to the grille. Pull the nameplate away from the grille.3 21 GS Satellite Array Procedures Note: Refer to the figure below for the following procedures. 1. Grille Removal 1.1 Using a scribe or small flat blade screw- driver to grasp the edge of the grille (2). Gently pull the grille away from the enclo- sure. 2. Twiddler TM Removal 2.1 Perform procedure 1. 2.2 Using a Philips-head screwdriver, re- move the four screws (5) that secure the driver (1) you wish to remove. 2.3 Lift the driver out of the enclosure and remove the two faston connectors of the wiring harness. Re-assembly note: Be sure that the driver gasket is properly aligned behind the driver to ensure an airtight seal. 1 2 3 44x 58x1