User manual CRESTRON CNAMPX-12X60 CNAMPX-16X60

[. . . ] Crestron CNAMPX-12/16X60 Professional Audio Amplifiers Service Guide This document was prepared and written by the Technical Documentation department at: Crestron Electronics, Inc. 15 Volvo Drive Rockleigh, NJ 07647 1-888-CRESTRON All brand names, product names and trademarks are the property of their respective owners. ©2006 Crestron Electronics, Inc. Crestron CNAMPX-12/16X60 Professional Audio Amplifiers Contents Professional Audio Amplifiers: CNAMPX-12/16X60 1 Service Guide Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 General Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Rack Mounting Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Electro-Static Discharge (ESD) Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 AC Power Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Internal Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Disconnect Unit and Cover Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Amplifier Module Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Audio Output Relay Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Cresnet System Interface Card Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 In-Rush Surge Suppressor Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Cover Installation and Reconnect Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Problem Solving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Further Inquiries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Future Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Return and Warranty Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Merchandise Returns / Repair Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 CRESTRON Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Service Guide - DOC. 5885B Contents · i Crestron CNAMPX-12/16X60 Professional Audio Amplifiers Professional Audio Amplifiers: CNAMPX-12/16X60 Service Guide Overview This guide provides service instructions for the CNAMPX-12X60 and CNAMPX16X60 Professional Audio Amplifiers. [. . . ] 5885B Professional Audio Amplifiers: CNAMPX-12/16X60 · 11 Professional Audio Amplifiers Crestron CNAMPX-12/16X60 10. Module replacement of the CNAMPX-12X60 and the CNAMPX16X60 are slightly different. To replace module #6 of the CNAMPX-12X60 or any module of the CNAMPX-16X60, continue to step 11 below. To replace a module other than module #6 of the CNAMPX12X60, proceed to step 14 below. Make sure that the card is outward of the vertical bracket and position the card to its mounting holes. 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. Re-install the card vertical bracket screw to finger-tight then, using a #1 Phillips screwdriver, tighten the screw an additional 1/8-turn. 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. If performing another internal replacement procedure, proceed to that procedure. 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. 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 Crestron CNAMPX-12/16X60 Professional Audio Amplifiers WARNING: The CNAMPX-12/16X60 amplifiers are heavy units. The CNAMPX12X60 weighs approximately 81. 40 lbs (37. 00 kg) and the CNAMPX-16X60 weighs approximately 90. 20 lbs (41. 00 kg). Use more than one person to remove unit from or install unit into rack. CAUTION: The CNAMPX-12/16X60 Cresnet system interface card contains ESD sensitive devices. Perform the following procedures while wearing a grounding strap that is properly grounded or on a grounded work station to avoid damaging the card and/or unit. CAUTION: To prevent stripping of screw heads, threads, or mounting holes, do NOT overtighten screws. NOTE: The CNAMPX-12/16X60 Cresnet system interface card provides Cresnet system control and is used to activate AC power. [. . . ] Only authorized CRESTRON dealers may contact the factory and request an RMA (Return Merchandise Authorization) number. Enclose a note specifying the nature of the problem, name and phone number of contact person, RMA number, and return address. Products may be returned for credit, exchange, or service with a CRESTRON Return Merchandise Authorization (RMA) number. Authorized returns must be shipped freight prepaid to CRESTRON, 6 Volvo Drive, Rockleigh, N. J. , or its authorized subsidiaries, with RMA number clearly marked on the outside of all cartons. [. . . ]