User manual MACKIE MB-32

[. . . ] Make sure that your 8·Bus Console power supply is turned off. Remove the Meter Bridge from its plastic bag. It's handy for wrapping boa constrictors or moray eels before popping them in your freezer. Also, save the box. 1 And, since every day except four or five in August are rainy up here in the Northwest Rainforest, they had time to do quite a nice job. [. . . ] The 32·8 has five; the 24·8 has four; the 16·8 and MB·E each have three (see epic MondoDrawing E at the top). Remove the rubber plugs and feed them to the afore-mentioned boa constrictor. Making sure that the plug and socket are aligned, firmly insert each ribbon cable into its corresponding socket in the Console (F). Take care to make sure that the cable is not twisted 180° (sounds insulting to caution you against something like this, but we've seen it done. ) Unless your fingers are microminiature, you'll probably need to use the eraser end of a pencil to press down on the plug and make sure that it is fully seated (G). Slide the new improved, slotted rubber plugs (that are pre-attached to the ribbon cables) down until they fit snugly into the rectangular Console holes (Drawing H). Adjust the Meter Bridge to the desired angle and tighten the screws. Wash hands before returning to work. D A SHORT TEST-DRIVE The point of this exercise is to make sure that all the Meter Bridge channels (and all the LED's on each channel) work properly. Confirm that the following are alight: A. The meter bridge's VU meters (unless you're installing an MB·E); and C. Either the TAPE or CHANNEL LED on the Meter Bridge. If nothing lights up, F turn the power off immediately and recheck your connections. If all is aglow, proceed to the next step. If the Meter Bridge TAPE LED is on, press the SOURCE button below it once to switch to G CHANNEL. If the CHANNEL LED is on, switch it to TAPE and back to CHANNEL, to confirm that the switch is behaving. Send a signal into the main path of Console Channel 1. The ­20 LED above the fader will let you know if you have done so. After making sure that the channel is not muted, turn up the channel fader. Confirm Meter 5. 6. 7. Bridge activity on Channel 1. Repeat steps 3 and 4 for each channel of the Console. You'll probably want to stop whooping after about the sixth or seventh channel. [. . . ] You will notice that the VU meters and LED meters will not always agree with each other. The LED meters read peak activity and will show every dynamic nuance. The VU meters, designed in the Early Bronze Age, are slower to respond and therefore show an RMS or average signal level. This will usually be several dB less than the peaks shown on the LED meter. [. . . ]