Remove the left slave unit, to gain access to the potentiometers.
When the Main chassis is replaced, the potentiometers on the new chassis are set
to the same value (click) as the old chassis. No further adjustment is used, as long
as the driver units not have been replaced.
When a driver unit is replaced, either treble or bass, you will need to perform an
adjustment on the two potentiometers. On the new service driver unit there will
be a dB value stated on the back. This value is used along with the table below to
adjust the correct potentiometer.
Bass adjustment (the lower potentiometer)
Stated value on the
service driver unit
Position of the click-
potentiometer
3,5 - 3,8
0
2,6 - 3,4
1
1,8 - 2,5
2
1,1 - 1,7
3
0,4 - 1,0
4
-0,3 - 0,3
5 (0 dB level)
-0,4 - -0,9
6
-1,0 - -1,7
7
-1,8 - -2,4
8
-2,5 - -2,8
9
Treble adjustment (the upper potentiometer)
Stated value on the
service driver unit
Position of the click-
potentiometer
3,1 - 3,7
0
2,4 - 3,0
1
1,7 - 2,3
2
1,0 - 1,6
3
0,4 - 0,9
4
-0,3 - 0,3
5 (0 dB level)
-0,4 - -0,8
6
-0,9 - -1,5
7
-1,6 - -2,2
8
-2,3 - -2,7
9
5.2 Service hints and adjustment, English
Summary of Contents for BeoLab 3 6881
Page 6: ...3 1 Overall block diagram Overall block diagram 3 1 3 1 Overall block diagram...
Page 7: ...3 2 Wiring diagram Wiring diagram 3 2 3 2 Wiring diagram 6...
Page 14: ...4 7...
Page 17: ...6 1 BeoLab 3 in serviceposition BeoLab 3 in serviceposition 1 2 3 4 1 2 1x TX10...
Page 18: ...6 2 Replace Top plate Replace Top plate 1...
Page 22: ...6 6 Replace Bezel Replace Bezel See page 6 1 BeoLab 3 in service position 1 2...
Page 29: ......
Page 30: ...Bang Olufsen DK 7600 Struer Denmark Phone 45 96 84 11 22 Fax 45 97 85 39 11 3538052 06 06...