Справочник Пользователя для Mackie 1220I

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Owner's Manual   
25
46. POWER LED
This green LED will turn on when the mixer is turned 
on, as a reminder of how on it really is. If it is not on, 
then it is off, and the mixer becomes a rather nice 
weight for keeping your morning newspaper from  
blowing away in the wind.
If it does not turn on, make sure the power cord is 
correctly inserted at both ends, the local AC mains   
supply is active, and the power switch [2] is on.
Talkback
The talkback feature allows the engineer to  
communicate with the talent either through the phones 
outputs [17] or the aux 1-2 send outputs [6] using the 
built-in talkback microphone. This saves a lot of  
shouting over the audience's heads as you set up the 
talented one's stage monitors to their peculiarly-picky 
satisfaction.
47. TALKBACK MIC
This is where the built-in talkback microphone is 
located. It is an omni-directional dynamic microphone, 
and it will pick up your voice from anywhere in front of 
the mixer.
48. TALKBACK LEVEL
Use this knob to control the level of the talkback  
signal being routed to the phones or aux 1-2 outputs, 
from the internal microphone.
1.  Start with this control turned down.
2.  Select the destination, either headphones 
and/or aux 1-2, and make sure their levels are 
already set nicely, such as phones [39] or aux 
sends [42].
3.  Hold down the talkback switch [50] as you 
make your fruity-toned announcements.
4.  Slowly turn this talkback level control up until 
you get confi rmation from whoever is listening 
to headphones or monitors that they can hear 
and obey your every command.
Once you have set the level, you can leave it there for 
the duration of the session or gig.
49. DESTINATION: PHONES, AUX 1-2
Push in the phones switch to route the talkback signal 
to the headphones. Use this to communicate with the 
talent in the studio through the headphones during a  
recording session. When the talkback circuit is 
activated by pushing the talkback [50] switch, the 
control room outputs [12] are attenuated to allow your 
voice to come through clearly.
dB
30
20
10
40
50
5
5
U
60
10
O
O
10
dB
30
20
10
40
50
5
5
U
60
O
O
ALT 3/4
OL
20
SOLO
MUTE
TALKBACK
MAIN MIX
TALKBACK
AUX
1-2
PHONES
DESTINATION
LEVEL
O
O
MAX
 SEND
INPUT
FW 1-2
LINE
POWER
MIC
MID
2.5kHz
LOW
80Hz
HIGH
12kHz
GAIN
U
+15
-15
U
+15
-15
U
+15
-15
+
20dB
-
20dB
U
AUX MASTER
2
1
SEND
RETURN
2
1
CTRL ROOM/PHONES
SOURCE
PHONES
CONTROL
ROOM
RUDE
SOLO
20
15
10
6
3
0
2
4
7
10
20
30
L
R
0dB=0dBu
LEVEL
SET
CLIP
PRE
POST
PRE
POST
RTN TO
AUX1
MAIN MIX
ALT 3-4
TAPE
FW 1-2
ASSIGN TO
MAIN MIX
MAX
O
O
MAX
O
O
+
15
O
O
+
15
O
O
+
10
O
O
+
10
O
O
AUX
2
1
L
R
PAN
MAX
O
O
MAX
O
O
11-12
47
48
49
50
23
35
36
37
38
39
41
40
45
46
51
42
44
43