Altec Lansing 3300A - Manual (Page 3)

Operating Instructions for the Altec Lansing 3300A Series Mixing Consoles
1 ELECTRICAL
1.1 115 Vac 50/60 Hz Operation
Tlie mixing console is provided with
the voltage select switch in the 115
Vac position. Its power supply design
allows it to be powered from 100 Vac
to 120 Vac lines in this switch posi­
tion.
1.2 230 Vac 50/60 Hz Operation
The mixing console may be powered
by line volta^s from 220 Vac to 240
Vac by switching the voltage select
switch to tlie 230 Vac position. How­
ever, the ac line fuse must be
changed. Refer to Table I for proper
fiise value.
WARNING: Veri^ that the voltage
select switch is in the desired
position, and the proper fuse is in
place for the intended ac line voltage
BEFORE applying power to the
mixing console.
2 INSTALLATION
2.1 Rack Mounting
The 3308A mixer may be placed in a
standard 19 inch equipment rack. It
requires 17,5 inches of vertical speice
(10 standard EIA vertical rack
spaces). For more information on
rack-mount installation, refer to
Section 5 and Figitre 9 of this
manual.
2.2 Ventilation
The 3300A series mixii^ consoles
should not be used in areas where
the ambient temperature exceeds
eO^C (140°F).
Table I. Fuse Selection Chart
AC LINE
VOLTAGE
I
100 V— 120 V
(8 anii 16 ch only)
100 V — 120 V
eh only)
220 V — 2<I0 V
AC LINE
FUSE
iOO niA/250 V
300 mA)2M> V
230 niA)250 V
3 SIGNAL CONN liCTIONS
3.1 Input Connections
Balanced microphc -ne inputs may hi
made to the 3-pin XLR-^jqje con
nector. Balanced line inputs may hi
made to the Vi-inch phone (TRS
connector. For single-ended inputs
strap the low (—) input (pin 3 oi
XLR or Ring on %-inch phone) h
ground. Otherwise;, the electronically
balanced input stage will see 5 dl
less input signal level than with i
balanced input. Refer to Figure 1 fo:
typical input connect ions.
BALANCED
LO-Z
MIC
M 1*1
J LA
UNBALANCED
LO-Z
MIC
HOT
HI 1+1 p 1 BAUINCED
LINE
LEVEL
SOURCE
LC H
Y
V
1
NC
UNeALANCED
LINE
LEVEL
SOURCE
jjCEL
J
NC
m
LO-Z
MIC
INPUT
LO-Z
MIC
INPUT
HI-Z
BALANCED
LINE
INPUT
HI-Z
BALANCED
LINE
INPUT
UNBALANCED
LINE
LEVEL
SOURCE
Not recoABendfid foi* rtm? over 6 feet.
p---------------—----------------- 1 HI-Z
HOT
BALANCED
LINE
INPUT
UNBALANCED
LINE
LEVEL
SOURCE
Not rocoauendeit for runs over B feet.
J---------------------- ------^ HI-Z
HPT -e-r&
—UNBALANCED
r^LINE
J
INPUT
Figure 1. Typical input connections.
SERVO-
BALANCED
OUTPUT
SERVO-
BALANCED
OUTPUT
HL-Vl-
NC
Mot reconaentfea for runs over 6 feet.
^RVO-
BALANCED
OUTPUT
Not recommeniied for runs over ipo feet. BALANCED
UNBALANCED
OUTPUT 1 --------
CGH
1
3"
Not reconnenoed for runs dver 6 feet.
____________-
UN8AU1NCED r­
OUTPUT ^
Not recoradended (or runs over 5 feet
UNBALANreO 1------- — —
OUTPUT <dll|^H!i
1 balanced
Í load
:;);B ALANCEO
__ LOAD
:.::3AUNCED
__ LOAD
BALANCED
—1 LOAD
BALANCED
—^ LOAD
UNBALANCED
___^ LOAD
“i
-
Figure 2- Typical output connections.
ALTEC LAVS/VG* CORBORATJOti • a Mark IV Company