Service manual

ACCESSORY
INPUT
AND
OUTPUT
ACCESSORY
INPUT
AND
OUTPUT
FIGURE G.
16-CHANNEL MIXER CONNECTIONS
SORY INPUT AND OUTPUT Connector (8) of each
SR110 is connected to the female ACCESSORY OUT-
PUTIAUX
LEVEL Connectors of the SRlOls or SRlO9s.
The SRllOs are connected through their MIX BUS
Connectors (10). With this set-up, all 16 channels are
available at each
SRl10. The MASTER Volume Con-
trols
(3) of each SR110 are independent of each other,
and varying one MASTER Control will not affect the
output of the other. Each SRllO output is fed to its
own power amplifier.
SPECIAL OPERATING INSTRUCTIONS
The following information is supplied to enable the
user to utilize the
SRl10 Professional Monitor Mixer
in special or custom installations.
Multi-Track Recording Mixing
The SRllO may be used as a submaster or mixdown
panel for multi-track recording systems. The input to
the
SR110 can be a microphone preamplifier, record-
ing console channel output or tape recorder line out-
put.
I TIP WlRE
3600 5%
I
TO LlNE LEVEL
OUTPUT PHONE JACK
0 i
I O RING WlRE
I
I
NOTE: NO CONNECTION TO SLEEVE REQUIRED.
FIGURE H. VU METER CONNECTION
SERVICE INSTRUCTIONS
Service (See Guarantee)
The
SR110 Professional Monitor Mixer uses com-
ponents of the highest quality, operating well within
their respective ratings to assure long life.
WARNING
Voltages in this equipment are hazardous
to life. Refer servicing to qualified service
personnel.
A single
SR110 is used for monophonic systems.
I I
Additional SRllOs may be added by interconnecting
Replacement Parts
Parts that are readily available through local elec-
the
INPUT AND OUTPUT Connectors
tronic parts distributors are not shown on the ac-
(8, 9) for a multi-track system. For example, for an
eight
inlfour out system, use four SRllOs. For a 16
companying Parts List. Their values are shown on the
Circuit Diagram (Figure M). Commercial parts not
Out 'ystem, use SR1lOs 'Onnected in mix
readily available and unique parts are shown on the
bused pairs.
Parts List and may be ordered directly from the
fac-
Cable Extension
Should a longer cable length be required between
the SRllOs and their associated mixer, a length of
12-conductor, shielded cable and connectors may be
obtained from Shure Brothers
Inc. (see Parts List). Up
to 12m (40 ft) may be added between the SRllOs and
the console or mixer. Refer to the Circuit Diagram
(Figure M) for proper cable wiring.
Connecting a VU Meter
An external VU meter may be connected to the
SR110 LlNE LEVEL output (6) with a series resistor
(see Figure H). Use a true VU meter (such as a
Simp-
son 1349) and a resistor connected as shown. The
resistor should be a
M-watt carbon, 5%. With a 600-
ohm load, 0 VU is +4 dBm.
tory.
The commercial alternates shown on the Parts List
are not necessarily equivalents, but are electrically and
mechanically similar, and may be used in the event
that direct factory replacements are not immediately
available. To maintain the highest possible perform-
ance and reliability, Shure factory replacement parts
should be used. When ordering replacement parts,
specify the Shure Replacement Kit Number (RKC), de-
scription, product model number and serial number.
Cover Removal
To service components inside the chassis, the pro-
tective top cover must be removed. This is done by
removing eight screws from the top surface and lifting
the cover off.