Rane FPS 28 Handleiding

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OPERATING / SERVICE MANUAL

FPS 28

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 refresh your memory.

Inputs may be mic or line level. The choice between the two is made by setting the pushbuttons

on the rear of the unit near each input. Balanced inputs use pin 2 as hot, pin 3 as return and case

as shield ground. Unbalanced inputs should be connected to pin 2 for hot and pin 1, signal

ground, for return. The 1/4" expand outputs are to be used for daisy-chaining the inputs to

another destination. These are tip ring sleeve connectors where the tip is hot, ring is return and

sleeve is ground. Alternatively these may be used as inputs.

The outputs are 1/4" tip ring sleeve jacks where the tip is A output, ring is B output and sleeve is

ground. Signal for these outputs may be sourced either before or after the A and B MASTER

level controls. The switches which determine this are located within the confines of the unit’s

covers. All FPS 28s are shipped from the factory with the switches in the POST fader position.

Once inputs and outputs are satisfactorily connected, set the input gains as high as possible

without causing the A and B overload indicators to illuminate steadily with very high input levels.

If 1 x 8 splitter operation is required, only one input is used and the STEREO / MONO switch should

be in the MONO position. If 1 x 4 stereo operation is chosen the switch should be in the opposite

position.

NEVER CONNECT ANYTHING EXCEPT AN APPROVED RANE POWER SUPPLY TO

THE RED THING THAT LOOKS LIKE A TELEPHONE JACK ON THE REAR OF THE FPS

28. This is an AC input and requires special attention if you do not have a power supply EXACT-

LY like the one that was originally packed with your unit. See the full explanation of the power

supply requirements elsewhere in this manual.

SYSTEM CONNECTION

When connecting the FPS 28 to other components in your system for the first time, LEAVE

THE POWER SUPPLY FOR LAST. This gives you a chance to make mistakes and correct them

without damage to your fragile speakers, ears and nerves.

INPUTS. The two inputs on the FPS 28 are balanced. They may also be used in an unbalanced

configuration. Use only shielded cable for inputs. This wire should always be two-conductor plus

shield, even for unbalanced operation. Balanced inputs should be connected to both the “+”pin

2 and “–” pin 3 for signal hot and return. The shield should be tied to case ground. A neutral “pin

1”ground is not necessary (except when using phantom power). For unbalanced use, connect the

hot side of the input cable to pin 2 and signal return to pin 1. It is never necessary on any Rane

Flex module to ground the pin 3 input in the unbalanced mode. It won’t, however, hurt anything if

you do. If the input is coming from another piece of equipment in the signal path, connect the

shield only at the receiving end to help prevent ground induced hum. If a microphone is being

connected to the unit, the shield may be connected to the case of the mic as well as to the ground

terminal on the unit.

OUTPUTS. The FPS 28’s outputs are unbalanced. Channel A is present on the tip of these jacks,

channel B is the ring. Use two conductor shielded cable for this purpose with the shield con-

nected to the sleeve. Shield must be connected on both ends of the cable.

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