User Guide

Professional Audio Amplifiers Crestron CNAMPX-12/16X60
10. Module replacement of the CNAMPX-12X60 and the CNAMPX-
16X60 are slightly different. Perform the appropriate step below.
10a. To replace module #6 of the CNAMPX-12X60 or any module of
the CNAMPX-16X60, continue to step
11 below.
10b. To replace a module other than module #6 of the CNAMPX-
12X60, proceed to step
14 below.
11. Make sure that the card is outward of the vertical bracket and position
the card to its mounting holes.
12. Re-install the two card mounting screws to finger-tight then, using a
5/64-inch hex wrench, tighten the screws an additional 1/8-turn.
13. Re-install the card vertical bracket screw to finger-tight then, using a
#1 Phillips screwdriver, tighten the screw an additional 1/8-turn.
14. Re-install all module brace screws and appropriate module bottom
screws to finger-tight then, using 5/32-inch hex driver wrench, tighten
the screws an additional 1/4-turn.
15. Perform the appropriate step below.
15a. If performing another internal replacement procedure, proceed to
that procedure.
15b. If NOT performing another internal replacement procedure,
perform the “Cover Installation and Reconnect Unit” procedure on
page
16
Audio Output Relay Board Replacement
NOTE: The CNAMPX-12X60 does not contain an audio output relay board. This
procedure applies only to the CNAMPX-16X60.
The audio output relay board of the CNAMPX-16X60 requires extensive
disassembly of the unit and is NOT recommended by Crestron. If the audio output
relay board is suspected of being bad, the CNAMPX-16X60 must be returned to
Crestron. Refer to “Merchandise Returns/Repair Service” on page
21 and contact
Crestron customer service for further information.
Cresnet System Interface Card Replacement
The only tools required to replace the Cresnet system interface card in the
CNAMPX-12/16X60 are a grounding strap (or grounded workstation), a #1 Phillips
screwdriver, and a 5/64-inch hex wrench.
To replace the card, the defective card must be returned to Crestron and a
replacement must be obtained from Crestron. Refer to “Merchandise Returns/Repair
Service” on page
21 and contact Crestron customer service for further information.
12 • Professional Audio Amplifiers: CNAMPX-12/16X60 Service Guide - DOC. 5885B