Crown 1-vcap Guía Del Usuario
page 11
VCA-MC Series Amplifier Accessories
Operation Manual
TABLE 1. ATTENUATION PER DETENT OF CROWN VCAP LEVEL CONTROL
Set the VCAP panel knob to the desired attenuation according to the table below.
DETENT
ATTENUATION
DETENT
ATTENUATION
0
-69
16
-31
1
-69
17
-29
2
-67
18
-26
3
-65
19
-24
4
-62
20
-21
5
-59
21
-19
6
-56
22
-16
7
-52
23
-14
8
-51
24
-11
9
-48
25
-9
10
-45
26
-6
11
-43
27
-4
12
-40
28
-1
13
-38
29
0
14
-36
30
0
15
-33
Detent 0 is full counterclockwise. Dentent 30 is full clockwise. Note: This table is for refer-
ence only. Actual attenuation may vary ± 1 dB.
ence only. Actual attenuation may vary ± 1 dB.
4.1.1 Troubleshooting
If the amplifier gain does not respond to the wall-mount potentiometer, a miswire is sus-
pect. Check the pinout at both ends of the cable. Make sure that each potentiometer is wired
to the correct channel’s VCA control input (VCA1, VCA2, etc.). Check that the +10V and
ground connections are made properly.
pect. Check the pinout at both ends of the cable. Make sure that each potentiometer is wired
to the correct channel’s VCA control input (VCA1, VCA2, etc.). Check that the +10V and
ground connections are made properly.
If the operation of the VCA control is inverted (i.e., full volume when the control is full coun-
terclockwise), check the VCA control wiring (refer to Section 3).
terclockwise), check the VCA control wiring (refer to Section 3).