Bose 802-II User Manual

13
Notes for Future Reference
NOTE: ALL INFORMATION CONCERNING THE 802-C CONTROLLER IN THIS MANUAL
PERTAINS TO UNITS
WITH SERIAL GROUPING IN THE 100000 RANGE. FOR FUR-
THER INFORMATION ON THE NEWER SMD VERSIONS (SERIAL NUMBER 2000000
RANGE) REFER TO THE 802-C CONTROLLER SUPPLEMENT: BOSE PIN 129292.
802- C INPUT SENSITIVITY GAIN MODIFICATION
Certain mixer/amplifier models found in Europe have considerably less output than com-
monly found in the United States. These models have preamplifier outputs typically at .5
volt (500 mV) versus the I 1/2 to 3 volts and higher found in other areas. To accomodate
these lower outputs, we have provided the fol/owing 7dB gain modification. This
modification should ONLY BE PERFORMED IF the customer's other equipment does have
the lower output standards. Modification for use in equipment having higher outputs will
cause OVERLOADING of the Controller circuits and associated equipment.
I.
Follow Disassembly Procedures for
Lower PCB removal.
5.
Make notation of modification within
the un it for future reference.
Change resistors R-114 and R-214:
2.
From: 13k
To: 28k 1%
6.
7.
Follow reassembly procedures.
Perform Test Procedures.
3.
Locate capac itors C-I 05 and C-205.
NOTE: Output will now be 7dB + 1.5dB
higher than specifications.
4. Add, in parallel, to each capacitor a
27k I% resistor.

Bose 802-II Specifications

General

Brand	Bose
Model	802-II
Category	Speakers
Language	English