REAR PANEL DESCRIPTION
1. CHANNEL INPUT CONNECTORS.
Use these 3-pin connectors for either microphone
or line level inputs. Connect balanced sources to pin 2 (“+”), pin 3 (“–”) and pin 1 (GND)
terminals. Unbalanced inputs connect only to pin 2 (“+”) and pin 1 (GND). When an un-
balanced input is used, pin 3 (“–”) may be left open or shorted to GND.
2. MASTER A/B OUTPUTS.
If balanced operation is your choice, use both jacks as indi-
cated by the graphics printed to the right (or top) of the jacks. One is MASTER A output,
and the other is MASTER B output.
3. AUX A/B OUTPUTS.
These are optional unbalanced outputs programmed by changing
jumpers inside the unit. Refer to the graphics found to the left (or bottom) of the jacks, and
to the silkscreened word “AUX” found on the printed circuit board. Locate three (3) jumper
blocks. Lift the jumper header up and reposition one pin over and slide back down (covering
the word “AUX”).
4. FLEX BUS IN CONNECTOR
This input accepts bus information from other FLEX
mixer modules, such as an FM1 14, FMM 42 or another FPM 42. This input adds to the pro-
gram material connected to the FPM 42. The combined results appear at the FLEX BUS
OUT jack, as well as the terminal strip outputs.
5. FLEX BUS OUT CONNECTOR
This seven-pin DIN connector provides output to other
mixer modules, such as another FPM 42, an FMI 14 or an FMM 42. Signals present here in-
clude the AUX of both this FPM 42 as well as any AUX sends generated by other FLEX
mixer modules connected to the FLEX BUS IN above. The Master A and B signals are also
available, which are the sum of this module and any other modules connected to the bus
input.
6. AUX PRE/POST ASSIGN SWITCHES.
Slide switches located inside the FPM 42. Used
to select Aux source to be PRE- or POST- input LEVEL A/B controls. Shipped in the PRE
positions.
7. POWER INPUT CONNECTOR
USE ONLY A MODEL RS 1, FRS 8, OR OTHER
REMOTE AC POWER SUPPLY APPROVED BY RANE. The FPM 42 is supplied with a
remote power supply suitable for connection to this input jack. Consult the factory for re-
placement or substitution.
8. CHASSIS GROUND POINT.
A 6-32 threaded hole, used for chassis grounding pur-
poses.
9. GROUND LIFT SWITCH.
On this unit, the Ground Lift switch is located along the bottom edge (vertical mounting), or
along the right-hand side (horizontal mounting, from the front). Since the switch’s location prevents easy use once installed,
it is suggested you decide which position is required, and set it before installation. The LIFT position is when the switch is
slid to the rear of the unit.
10. PHANTOM POWER SWITCH & LIGHT.
On this unit, the Phantom Power switch is located along the top edge (verti-
cal mounting), or along the left-hand side (horizontal mounting, from the front). Since the switch’s location prevents easy
use once installed, it is suggested you decide if phantom power is required, and set it before installation. The ON position
lights the LED when the switch is positioned to the rear of the unit.
TOP-REAR COVER REMOVAL PROCEDURE:
To gain access to the PRE/POST switches and/or output jumpers, remove the top/rear cover as follows:
1. Using a #2 phillips screwdriver, remove the (5) screws securing the top/rear cover to the chassis.
2. Slide the top/rear cover to the rear and off of the chassis.
3. Replace the top/rear cover by reversing the above procedure.
