Dolby Laboratories CP65 - Manual (Page 64)

Action Indication Step
No.
5-50
B-Chain Alignment Procedures
h. Adjustment of Non-sync Gain
5
6
Dolby
gain mono
non-sync
gain
points
test
mono eq
Ls
R
C
L
Ls
R
C
L
gnd
Ls
R
C
L
R
L
signal present
Cat. No.
242
Dolby
n-sync surr gain
Q
on
present signal
gnd
gain
bass
Q
mid freq
cut
treble
tp
bass
Q
freq mid
cut
treble
gain mag/dig
opt gain
off
auto freq
cut
tp
present
signal
Subwoofer
Left Surround
Right Surround
Cat. No.
441
Dolby
n-sync surr gain
Q
on
present
signal
gnd
gain
bass
Q
mid freq
cut
treble
tp
bass
Q
freq mid
cut
treble
gain mag/dig
opt gain
off
auto freq
cut
tp
present
signal
Subwoofer
Left Surround
Right Surround
Cat. No.
441
B-Chain Alignment Procedures
Notes
5-51
h. Adjustment of Non-sync Gain
Turn the Non sync surround gain on the Cat. No. 441 fully counterclockwise.
Adjust the Non sync surround gain control on the Cat. No. 441(if fitted) for the desired
surround level in the auditorium. This control is not present on a Cat. No. 241.
Play a cassette or CD on the non-sync device and adjust the non-sync L (left) and non-
sync R (right) controls on the Cat. No. 242 B-Chain card for the desired level in the theatre.
If possible, select a recording that has a natural ambience such as an orchestral work.