Bose 802c Wartungshandbuch

1©1997 Bose CorporationPart Number 129292 REV 03Service Manual802C System ControllerOriginal and SMD Version®® Units with serial numbers beginning wi

10TEST PROCEDURES4.4 Apply a 100Hz, 500mVrms signal tothe input of the 802C.4.5 Reference a dB meter to the 302 AMPoutput jacks (while in the Bi-Amp

111. This part is not normally available from Customer Service. Approval from the Field ServiceManager is required before ordering.2. The individual

12MAIN PART LISTReferenceDesignatorDescription Part Number NoteJ1, 3 CONNECTOR, XLR,INSERT121823J2, 4-8 JACK, PHONE 121570J9 WAFER, 7PIN, (2461) 123

Figure 4. Main Parts Exploded View13

14ELECTRICAL PART LISTResistorsReferenceDesignatorDescription PartNumberNoteR1, 2 2.7kΩ, 1/4 Watt, 5% 117704-1212725R3, 4 3.3kΩ, 1/4 Watt, 5% 117704-1

15ELECTRICAL PART LISTResistors (continued)ReferenceDesignatorDescription PartNumberNoteR144, 244 56kΩ, 1/4 Watt, 2% 117704-1215632R148, 248 4.12kΩ, 1

16ELECTRICAL PART LISTCapacitorsReferenceDesignatorDescription PartNumberNoteC1 .0047uF, 220V.0047uF, 1.4KV, 100/120V1209931034473C2, 3 .015uF, FILM 1

17ELECTRICAL PART LISTDiodesTransistorsIntegrated CircuitsReferenceDesignatorDescription PartNumberNoteU1, 8, 9 QUAD OP AMP, LS-404 120535/

18VOLTAGE CONVERSION INSTRUCTIONS 220 Volt to 110 Volt Conversion 110 Volt to 220 Volt Conversion1. 220 Volt to 110 Volt Convers

Figure 6. Top Cover Connection Diagram19

2ContentsSafety Information...

SPECIFICATIONS AND FEATURES SUBJECT TO CHANGE WITHOUT NOTICE®®Bose CorporationThe MountainFramingham Massachusetts USA 01701P/N 129292 REV. 03 10/97 F

3SAFETY INFORMATION 1. Parts that have special safety characteristics are identified by the symbol on schematics or

4DEVICE HANDLINGELECTROSTATIC DISCHARGE SENSITIVE (ESDS)This unit contains ESDS devices. We recommend the following precautions when repairing,replaci

5SPECIFICATIONSInput Connections:(per channel)One (1) balanced female XLR connectorOne (1) unbalanced 1/4" phone jackOutput Connections:(per chan

6The 802®C System Controller is a sophisticated signal processing device which combines thefunctions of three equalizers, an automatic switching circu

7DISASSEMBLY/ASSEMBLY PROCEDURESFigure 1. Locking Tab Screw LocationNote: Refer to the Figures (2 and 3) for thefollowing procedures.1. Top Cover Re

Figure 2. Original 802C PCB Exploded ViewFigure 3. SMD 802C PCB Exploded View8

9TEST PROCEDURES4. Bi-Amp Frequency ResponseNote: This test is performed with both the802 AMP and the 302 AMP output jacksused at the same time.4.1