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B-Chain Alignment Procedures
Action
Indication
Step
No.
5-12
a. Setting Room Equalization
bypass
(switch behind panel)
NORMAL BYPASS
NORMAL BYPASS
04
Dolby Stereo
A-type
14
15
.05
.1
.2
.4
.8
1.6
3.15
6.3 12.5 kHz
dB
–10
+5
0
–5
+10
2.0 8.0
B-Chain Alignment Procedures
Notes
5-13
a. Setting Room Equalization
Change the NORMAL/BYPASS switch to the BYPASS position. Remove the center
channel Cat. No. 64 equalizer module and plug the Cat. No. 67 extender in its slot. Then
plug the equalizer module into the free end of the extender.
Restore the switch to the NORMAL position and make certain the format switch is still in
the 04 position.
Turn on the center channel only on the Cat. No. 85C.
While observing the RTA display, adjust the bass control on the Cat. No. 64 so the bass
frequency response is approximately flat. Once you set this control, do not change the
setting during the rest of the room equalization procedure.