Mackie CR1604 - VLZ TRS Send/Receive Insert Jacks, Using the Send Only on an Insert Jack

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input, for example, will automatically unbalance the input and make all the right connections. Conversely, a 1⁄4" TRS plug inserted into a 1⁄4" unbalanced input will automatically tie the ring (low or cold) to ground (earth).

NOTE: Do not over- load or short-circuit the signal you are tapping from the mixer. That will affect the internal signal.

TRS Send/Receive Insert Jacks

Mackie’s single-jack inserts are the three- conductor, TRS-type 1⁄4" phone. They are unbalanced, but have both the mixer output (send) and the mixer input (return) signals in one connector (See Figure F).

The sleeve is the common ground (earth) for both signals. The send from the mixer to the external unit is carried on the tip, and the re- turn from the unit to the mixer is on the ring.

Using the Send Only on an Insert Jack

If you insert a TS (mono) 1⁄4" plug only partially (to the first click) into a Mackie insert jack, the plug will not activate the jack switch and will not open the insert loop in the circuit (thereby allowing the channel signal to continue on its merry way through the mixer).

This allows you to tap out the channel or bus signal at that point in the circuit without interrupting normal operation.

If you push the 1⁄4" TS plug in to the second click, you will open the jack switch and create a direct out, which does interrupt the signal in that channel. See Figure E.

MACKIE STEREO INPUTS AND RETURNS: Mono, Stereo, Whatever

Stereo line inputs and stereo AUX returns are a fine example of the Mackie philosophy (which we just made up) of Maximum Flex- ibility with Minimum Headache. The inputs and returns will automatically be mono or ste- reo, depending upon how you use the jacks. Here’s how it works:

A mono signal should be patched into the input or return jack labeled Left (MONO). The signal will be routed to both the left and right sides of the return circuit, and will show up in the center of the stereo pair of buses it’s as- signed to, or it can be “panned” with the Balance control.

A stereo signal, having two plugs, should be patched into the LEFT (MONO) and the RIGHT input or return jacks. A jack switch in the RIGHT jack will disable the mono func- tion, and the signals will show up in stereo.

A mono signal connected to the RIGHT jack will show up in the right bus only. You probably will only want to use this sophisticated effect for special occasions (weddings, bar mitzvahs, Rush Limbaugh’s birthday party, etc.)

MONO PLUG

Channel Insert jack

Direct out with no signal interruption to master.

Insert only to first “click.”

MONO PLUG

Channel Insert jack

Direct out with signal interruption to master. Insert all the way in to the second “click.”

STEREO

PLUG

Channel Insert jack

For use as an effects loop.

(TIP= SEND to effect, RING = RETURN from effect.)

Figure E

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Contents MIC/LINE Mixer Safety Instructions LEVEL-SETTING Procedure Read thisInstant Mixing Other Nuggets of WisdomHOW to USE this Manual Plug for the Connectors SectionIntroduction Arcane Mysteries IlluminatedContents Hookup Diagrams Stereo EQ Video Setup Converting to Rackmount Mode Switching PositionsPhantom Power Patchbay DescriptionInterface MIC InputsLine Inputs TrimInsert Direct OUTOutputs of the multitrack are then Split MonitoringAUX Send Outputs AUX Return Inputs SUB OutsTape Input Phones OutputTape Output Power Connection Main InsertMain Outs Mono OutputPower Switch Power LEDPhantom Switch Phantom LEDClean Fade Channel Strip DescriptionFader Assign 1-2, 3-4, L-RSolo Solo LEDOL Mute LED During Normal AFL mode, the soloedMute PANStereo Sources Constant LoudnessLOW CUT AUX 1, 2, 3PRE ShiftOutput Section Description VLZ MIX ArchitectureSubgroup Faders Assign to Main MIXTape in Level Tape to Main MIXSource PhonesMent switches post-EQ Level SET LEDSolo Level Rude Solo LightMeters AUX TalkAUX Sends Master Meters vs. RealityAUX Sends Solo AUX Returns LevelEffects to Monitors Main MIX to Subs AUX RETPhns only AUX RET Returns SoloUL Warning Mackie DisclaimerAbout Jumpers Place the mixer upside-down on a dry, non- marring surfaceCR1604-VLZ Source Mod CR1604-VLZ Block Diagram OL FlickerGain LOW MID HighSpecifications Repair Service InfoTroubleshooting Chorusing AssignAttenuate AuxDelay ConsoleCueing DBmEcho Effects devicesEQ curve EqualizationGain Gain stageGraphic EQ GroundInput module KneeLevel Line levelPhantom power Pan, pan potParametric EQ PeakingRCA phono jack-orRCA jack or phono jack RCA phono plugRegeneration ReturnVolume XLR connectorStereo Sweep EQXLR Connectors Appendix B Connections⁄4 TS Phone Plugs and Jacks ⁄4 TRS Phone Plugs and JacksSwitched 1⁄4 Phone Jacks RCA Plugs and JacksUnbalancing a Line Special Mackie ConnectionsUsing the Send Only on an Insert Jack TRS Send/Receive Insert JacksMults and Ys Balanced Lines Phantom Power do & DON’T Chart DON’TDo’s and Don’ts of Fixed Installations Don’t use hardware-store light dimmersFree T-SHIRT Offer Here are some guidelinesSession Date CR1604-VLZ0.5A
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