Bose 301 Series III User Manual

Service ManualP/N 181850 REV 1301® SERIES IV DIRECT/REFLECTING® SPEAKER SYSTEM©1996 Bose Corporation®

9301® Series IV Main Assembly Parts List (Figure 3)ItemNumberDescription Part Number Qty.PerSpeakerReference1 Grille Assembly, Front: B

10301® Series IV Crossover Parts List (Figure 3)301 Series IV Main Packaging Parts List (Figure 4)ItemNumberDescription Part Number Qty.PerCartonRefer

SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICEBose CorporationThe MountainFramingham, Massachusetts USA 01701P/N 181850 7/96 REV. 1 F

PROPRIETARY INFORMATIONTHIS DOCUMENT CONTAINS PROPRIETARY INFORMATIONOF BOSE CORPORATION WHICH IS BEING FURNISHED ONLYFOR THE PURPOSE OF SERVICING THE

BOSE® 301® SERIES IV TECHNICAL DESCRIPTIONThe BOSE 301 Series IV speaker is a replacement for the 301 Series III and 4.2® Series IIspeakers. It is

DISASSEMBLY/ASSEMBLY PROCEDURESNote: Refer to Figure 3 for the following proce-dures.1. Grille Removal: Both the front grille (1) and theside gri

44.6 Remount the tweeter using the #8-32 screw.4.7 Remount the woofer using the four #8-11screws.5. Remounting the Grilles: Both side and frontgril

5TEST PROCEDURESNote: Before performing any tests, remove bothgrilles by following the grille removal instructions inthe disassembly section of this

FIGURE 2Schematic Diagram This ensures that the woofer and speaker inputterminals are wired in phase, (see SchematicDiagram, Figure 2).6. Twee

7FIGURE 3: 301® Series IV Main Assembly Drawing453678910B12116RT1AC1See Detail A for LogoVariations and Placement212Detail ALogo Variations &

8FIGURE 4: 301® Series IV Packaging Parts Drawing910881 2 34 5 67