Link Jacks; Basic Operating Hints; Special Operating Instructions; High-Impedance Microphones - Shure SR101 Series 2 Operation And Service Manual

BASIC OPERATING HINTS
Should any difficulty be encountered in Console opera-
tion, the problem may often be traced to some simple
source such as an error in interconnection. The following
is offered as a basic guide to problems of this sort.
Symptom: Console is "dead" (no output, VU Meter lamps
out)
Check: 1. Check that ac Dower source is "live" and
2. Check that cable from PROGRAM OUT-
PUT/LINE LEVEL Connector (27) has not
accidentally been connected to PROGRAM
OUTPUT/MIC LEVEL Connector (24).
3. Check that PHASE Switch (26) is not be-
tween positions.
4. Check that external equipment is properly
connected to LINK Jacks (28,31).
that Console is plugged in.
Symptom:
One channel is "dead" (other channels oper-
2. Check that POWER ON-OFF Switch (19) is
ating properly)
on.
3. Check to see that rear-panel 3AG-3116A Check: 1. Check for defective input cable or source.
SLO-BLO Fuse (22) is good. 2. Check that channel PROGRAM Switch (13)
Symptom:
Console is "dead" (no output, VU Meter lamps is depressed.
lit) 3. Check that AUX-MIC Switch (14) (channels
Check: 1. Check that PROGRAM Switch or Switches
7 and 8 only) is not between positions or in
(13) are depressed.
the wrong position.
SR101 Series 2 Audio Console
SPECIAL OPERATING INSTRUCTIONS
The previous section described normal interconnection The high-impedance cable should be limited to 6.lm
and operation of the SR101 Audio Console; this section (20 ft.). If a long cable length is required, use up to 3.05m
provides information on special set-ups to more fully utilize (10 ft.) of high-impedance, single-conductor, shielded
the capabilities of the Console.
cable (Belden #8401, #8410, or #8411) between the micro-
HIGH-IMPEDANCE MICROPHONES
phone and line matching transformer, and add as much
low-impedance, two-conductor, shielded cable (Belden
UP to two high-impedance dynamic, ribbon or condenser
#8412,' or #8422) as necessary between the transformer
microphones (crystal or ceramic microphones are not
and Console input jack. These precautions will help avoid
recommended) can be used with the Console without the
high-frequency signal loss and reduce the possibility of
need for line matching transformers simply by using the
hum and noise.
AUX. INPUT Jacks (32) on channels 7 or 8 and moving the
corres~ondincl INPUT ATTEN Switch (14) to AUX. NOTE:
INSTRUMENTS
The very highoutput produced by s0m.e dondenser micro-
Musical instruments, acoustical (non-electrified), acous-
phones may be compensated for by proper setting of the
tical-electrified, or electrified, may be amplified through the
INPUT ATTEN Control.
Console. For acoustical instruments, place a microphone
If a high-impedance microphone is to be used with one of
close to the instrument strings, sounding board, or mouth.
the low-impedance MIC LEVEL Input Jacks (33), a line
Adjust equalization, reverb and volume controls as neces-
matching transformer (Shure A95 Series) must be used. sary.
FIGURE 7. PREAMPLIFIER-CONSOLE CONNECTIONS
11
r
3.05 m (10') MAX. - I
P U P TO 3 0 5 m (1000')
LOW IMPEDANCE HIGH IMPEDANCE
AUX O R HEADPHONE
r
A95
LINE
MATCHING
TRANSFORMER
1
-
OUT
MIC LEVEL
INPUT
PREAMPLIFIER
MICROPHONE
CABLE
LOW IMPEDANCE
SR lOl
AUDIO CONSOLE