Rane FLM 82 Operating And Service Manual

OPERATING / SERVICE MANUAL

FLM 82

MIXER INPUT

QUICK START

This section has been provided as a convenience for those without enough patience to read

the entire manual. If you are experienced with this unit or other Rane Flex modules, these few

words should help you refresh your memory.

The FLM 82 is a line level mixer only. It will not accept microphone input levels. Inputs are

accepted in unbalanced pairs. Each of the four two-channel Inputs are set up in a tip-ring-sleeve

configuration such that the tip is Channel A and the ring is Channel B. Input or mix levels are

controlled by a concentric  LEVEL control on each Input channel. The outer knob determines the

mix level for Channel B, the inner is Channel A. The  AUX SEND Level controls are set up the

same way; outer knob determines the send level for Channel B, inner is Channel A.

The Aux Sends may be internally switched so that they are pre or post input fader. FLM 82s

are shipped from the factory with the internal switches set to the “pre” position. To change this,

the top cover must be removed and the switches reset to the desired position following the

legends on the circuit board assembly.

Like many of the Flex Series modules, the FLM 82 provides busing capabilities so that it may

be included in a larger mixer configuration with other modules. The  FLEX BUS INPUT  on the

rear will sum all previous modules on the Bus with the Inputs of the FLM 82. The 

FLEX BUS

OUT connector makes available all signals on the Bus Input as well as locally generated pro-

gram material in the FLM 82. The  STEREO/MONO  switch on the rear adds Channel A and

Channel B signals together for a mono feed to the  MASTER OUTPUTS A  and B on the rear of

the unit. Engaging this switch also causes the AUX A and B signals to be combined to one. The

AUX LOOP A  and B jacks on the rear may be used either as direct Aux Outputs or for inserting

processing in series with the Aux buses before the are added to the direct A and B Master

Outputs. The use of these jacks will have no effect on Aux signals placed on the FLEX BUS.

The MASTER A  and B level controls set the output level to the MASTER A and B Outputs on

the module, and have no effect over levels being delivered to the FLEX BUS OUT connector.

Never connect anything except an approved Rane power supply to the red thing that looks

like a telephone jack on the rear of the FLM 82.  This is an AC input and requires special

attention if you do not have a power supply  exactly like the one that was originally packed with

your unit. See the explanation of the power supply requirements elsewhere in this manual.

SYSTEM CONNECTION

When connecting the FLM 82 to other components in

your system for the first time,  leave the power supply for last .

This lets you make mistakes and correct them without damage

to your fragile speakers, ears and nerves.

INPUTS. All inputs on the FLM 82 are unbalanced. Each

of the four TRS INPUT jacks is arranged so that tip drives

Channel A and ring drives Channel B. Use shielded cable for

all input and output wiring. Connect the shield to the sleeve of

the input connector. Rane Note 110 specifies that shields

should be connected at the receiving end of signal cables

only. A copy of this tech note was included with your FLM

82; if you need another, let us know.

BUS INS AND OUTS  When connecting the FLM 82 to

other Flex modules through the Bus connectors, it is best to

use the DIN connecting cables supplied with the unit or

replacements ordered from the factory. If this is inconvenient,

any good quality DIN cable may be used as long as it is wired

straight through , that is pin 1 to pin 1 etc. It must be a

shielded cable for optimum performance. You may notice that

the DIN connectors on the FLM 82 and other Flex Modules is

of the seven-pin variety.  The FLM 82 does not use the outer

two pins and will therfore not suffer terribly if a five-pin DIN

connector is used. The extra two

pins have been reserved in the Flex

Bus Standard for future use and are

there “just in case”.

OUTPUTS. Although labeled as loops, the AUX LOOP A

and AUX LOOP B connectors may be used as outputs.  If one

wishes to use the loops as outputs and break the signal path so

that the Aux signals do not reach the Master A and B Outputs,

use a mono ¼" tip-sleeve plug, use the tip as hot and the

sleeve as signal ground. If you do not wish to break the signal

path between the Aux Bus and the Master Output, short the

tip and ring of a TRS plug together and use this junction as

your Aux Output.

The other application for this set of jacks is for inserting

processing of your choice between the Aux A and B Buses of

the mixer and the direct Master A and B Outputs. If this is

your choice, use the tip as send and the ring as return.

Connecting devices to these jacks has no effect over what the

FLM sends the Aux Buses on the FLEX BUS OUT connector.

The MASTER A and B outputs are fully balanced. Use the

tip of each connector as “hot”, ring is “not hot” and the sleeve

is signal ground.