Xantech mrc88 MRC88, Keep perforations on top cover free, of obstructions

Model MRC88 Page: 21

b)Press “VOL+” on the Zone 1 Keypad. The Volume bar should move on the Keypad and the audio content of the source connected to the Source 1 inputs should be should be heard through the Zone 1 speakers.

c)Press “MUTE” on the Zone 1 Keypad. The Zone 1 speakers will mute. Press MUTE again and the speakers will un-mute. (Pressing VOL+ or VOL- will also un-mute the speakers).

d)Use the source 1 original equipment remote and verify that all source functions operate when aiming the remote at the Zone 1 Keypad IR sensor.

e)Press “POWER” on the Zone 1 Keypad and verify ALL Status LED’s on the Controller Front Panel are OFF.

8.Move the Audio/Video Source component to SOURCE 2 Audio Left/Right and Video Input terminals; Speakers to Speaker Output #2 and the TV/Video Monitor to Video Out #2.

9.Repeat Steps 5 thru 8 for source/Zone 2 thru 8

Note: For Zones 7 & 8 Speakers will be connected to the Speaker A and B output of the PA435x

Caution: Power voltage for the keypad is transmitted along the CAT5 cable! Incorrect wiring on this cable can destroy the MRC Keypad. Please test the cable connections using a proper CAT5 cable tester or using a Multimeter to check Pin to Pin continuity and for possible shorts. Using either method, it is advisable to measure pins 3 and 6 to verify proper voltage with a Multimeter. A 12Vdc measurement should be read when the positive probe is on pin 6 and the negative probe is on pin 3. See Figure 10.

Upper shelf, component, wall, etc.

MRC88	Keep perforations on top cover free
	of obstructions!

2-inch spacing (minimum)

To maximize air flow, route	Convection
single large opening in lower shelf.	Airflow	Keep perforations on bottom
		plate free of obstructions.

Figure 6A: MRC88 CTLR mounting

MRC88 CONTROLLER/AMPLIFIER PHYSICAL LOCATION AND MOUNTING (BASIC/ADVANCED)

When you mount the MRC88 Controller, you should plan its location carefully. Pay close attention to each of the following factors (refer to Figure 6A above):

1.The amplifier is convection cooled. That is, it depends on the natural free flow of air up through the slot perforations in the bottom plate, over the internal heat dissipating fins, then out the top cover, for adequate cooling.

© 2003 Xantech Corporation