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Bose 802C

Bose 802C
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©
1997 Bose Corporation
Part Number 129292 REV 03
Service Manual
802C System Controller
Original and SMD Version
®
®
Units with serial numbers beginning with 100000 are the original 802C's.
Units with serial numbers beginning with 200000 are the new SMD 802C's.
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Bose 802C Specifications

General IconGeneral
Weight5 lbs (2.3 kg)
CompatibilityBose 802 Loudspeaker System
FunctionsEqualization, Crossover, Limiting
EqualizationSpecifically tailored for the Bose 802 loudspeaker system
Signal-to-Noise Ratio>90 dB
Power Requirements100-240 V, 50/60 Hz
Input Impedance20 kOhms (balanced)
Dimensions1.75" H x 19" W x 7.8" D (4.4 cm x 48.3 cm x 19.8 cm)

Summary

Safety Information

Leakage Current Hot Check

Procedure to perform a leakage current hot check on the unit's electrical connections.

Insulation Resistance Test Cold Check

Procedure for performing an insulation resistance test to ensure safety.

Electrostatic Discharge Sensitive (ESDS) Device Handling

Specifications

Technical Description

DisassemblyAssembly Procedures

Top Cover Removal

Instructions for removing the top cover to access internal components.

Top Cover Replacement

Instructions for reattaching the top cover after servicing.

302 EQ (piggy-back) PCB Removal

Procedure for removing the 302EQ 'piggy-back' printed circuit board.

302 EQ (piggy-back) PCB Replacement

Procedure for installing the 302EQ 'piggy-back' printed circuit board.

Main PCB Removal

Instructions for removing the main printed circuit board (PCB).

Main PCB Replacement

Instructions for installing the main printed circuit board (PCB).

Test Procedures

Mode Indicator Test

Verifies the correct operation of the mode select and LED indicator functions.

802 Full Range Frequency Response

Tests the frequency response when the unit is configured for 802 Full Range operation.

302 Passive Frequency Response

Tests the frequency response for the 302 Passive mode of operation.

Bi-Amp Frequency Response

Tests the frequency response in the Bi-Amp mode using specific output configurations.

Distortion Test

Measures the total harmonic distortion across different operational modes.

Noise Test

Evaluates the unit's noise levels under specified test conditions.

Part List Notes

Main Part List

Electrical Part List

Voltage Conversion Instructions

220 Volt to 110 Volt Conversion

Steps to convert a 220 Volt unit to operate on 110 Volt power.

110 Volt to 220 Volt Conversion

Steps to convert a 110 Volt unit to operate on 220 Volt power.

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