User manual RANE PE 17

[. . . ] However, the INPUT connectors are wired in parallel and may not be used together. They will not function as a summing type of input for two different sources, but they may be used in a daisy chain fashion to feed other units. On the other hand (to randomly pick a hackneyed expression), you may use the paralleled Outputs to drive two destinations. Never connect anything except a Rane approved AC power supply to the thing that looks like a red telephone jack on the rear of the PE 17. WEAR PARTS: This product contains no wear parts. Manual- FRONT PANEL DESCRIPTION 1 GAIN +12 OL 0 ­12 IN 0 +12 OUT ­12 CUT FILTERS 250 180 80 35 20 10 LOW 3k 5k 5 LEVEL -3 7 1 FREQUENCY 8 BANDWIDTH 0. 6 1. 0 LEVEL 2 FREQUENCY BANDWIDTH 0. 6 1. 0 LEVEL 3 FREQUENCY BANDWIDTH 0. 6 1. 0 LEVEL 4 FREQUENCY BANDWIDTH 0. 6 0. 3 1. 0 1. 8 -6 LEVEL -3 5 FREQUENCY BANDWIDTH 0. 6 0. 3 1. 0 1. 8 -6 10k -12 -15 30k 40k HIGH 235 460 3 6 150 1k 9 12 100 2k dB Hz x10 x1 x0. 1 FREQ 0. 3 -3 235 460 3 1. 8 -6 6 150 1k -12 9 . 03 2. 0 -15 12 100 2k OCTAVE dB Hz x10 x1 x0. 1 FREQ 0. 3 -3 235 460 3 1. 8 -6 6 150 1k -12 9 . 03 2. 0 -15 12 100 2k OCTAVE dB Hz x10 x1 x0. 1 FREQ 0. 3 -3 235 460 3 1. 8 -6 6 150 1k -12 9 . 03 2. 0 -15 12 100 2k OCTAVE dB Hz x10 x1 x0. 1 FREQ . 03 2. 0 OCTAVE 235 460 3 6 150 1k 9 -15 12 100 2k dB Hz x10 x1 x0. 1 FREQ PE 17 . 03 2. 0 OCT. [. . . ] SEE THE MANUAL! PATCH I/O INPUTS USE ONLY ONE 4 5 2 3 1 1 XLR & ¼" TRS INPUT jacks: Choose between one of these inputs. The ¼" TRS Input is a differentially active balanced, auto unbalanced ¼" INPUT connector; tip = positive, ring = negative, and sleeve = signal ground. For unbalanced operation, use only a standard mono (single conductor )tip-sleeve (no ring) plug. The balanced XLR INPUT connector is wired: pin 1 chassis ground, pin 2 positive, and pin 3 negative. These Inputs parallel each other and may be used for daisy chaining purposes, but do not use to sum two Inputs together. 2 XLR & ¼" OUTPUT jacks: These jacks are active balanced Ouputs. The ¼" TRS tip is signal positive, the ring is signal negative and the sleeve is signal ground. The 3-pin wiring is per IEC/ANSI/AES standards: pin 1 signal ground, pin 2 positive, and pin 3 negative. These jacks parallel each other and unlike the Input, may deliver two Ouputs simultaneously. 3 PATCH I/O connector: This ¼" TRS jack provides an unbalanced I (Input) on its tip and an unbalanced O (Output) on its ring. This is designed for use with tip=send/ring=return effect loops found on many mixing consoles, providing an easy means for patching the unit into effect loops using only a single ¼" TRS (2-conductor) patch cable. Caution: Use either the PAtCH I/O or the InPUt and OUtPUt connectors -- do not use both. 4 Remote POWER supply input: This unit is supplied from the factory with a model RS 1 Remote AC Power Supply suitable for connection to this jack. This unit requires an 18 volt AC center-tapped transformer only. never use a power supply other than the one supplied or a Rane approved replacement. 5 Chassis ground point: A #6-32 screw used for chassis grounding purposes. See the note below. CHASSIS GROUNDING After hooking up your system, if it exhibits excessive hum or buzzing, an incompatibility in the grounding configuration between units exits. Now you earn your money, now you pay the piper. Now you must discover how your particular system wants to be grounded!Here are some things to try: Always use balanced interconnection methods--but, when you can't: 1. Try combinations of lifting grounds on units supplied with ground-lift switches or jumpers. If your equipment is in a rack, verify that all chassis are tied to a good earth ground, either through the line cord grounding pin or the rack screws to another grounded chassis. [. . . ] It is good practice to start at the head of the system, turning on any sound sources and mixers first, equalization devices next, and finally power amplifiers. To chase down the feedback frequency, start with the filter LEVEL control set to its full -15 dB position. With the BW still set to minimum, tune the FREQ control until the feedback goes away. It shouldn't take too much fine tuning to find the center of the resonance. [. . . ]