Mackie CR1604 Modifications - Page 11

8•Bus Modifications AUX Send Mod This modification changes the tap point of all "pre" AUX sends from post-EQ to pre-EQ. It must be done on each channel. For example, if you have a 24•8, the modification must be done on all 24 input channels. See Figure below. This modification takes place on each channel strip in an area under the AUX 1/2 Pre/Post switch. 1. Remove power cable. 2. Cut the conductor at Point A. 3. Add a jumper at Point B. 4. Repeat for all input channels. PFL Mod This modification changes the tap point of the SOLO bus from post-fader/post-mute (stereo) to pre-fader/pre-mute (mono). It must be done on each channel. For example, if you have a 24•8, the modification must be done on all 24 input channels. See Figure below. This modification takes place on each channel strip in an area under the channel fader. 1. Remove power cable. 2. Cut the conductor at Point C. 3. Cut the conductor at Point D. 4. Add a jumper at Point E. 5. Add another jumper at Point F. 6. Repeat for all input channels. BEFORE cut here (A) BEFORE cut here (C&D) AFTER add jumper (B) Aux Send Modification 11 AFTER add jumpers (E&F) PFL Modification