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. [. . . ] NOTE: To obtain a replacement module, refer to "Merchandise Returns/Repair Service" on page 21 and contact Crestron customer service for further information. Module replacement of the CNAMPX-12X60 and the CNAMPX16X60 are slightly different. In the CNAMPX-12X60, orient and position the replacement module into the CNAMPX-12X60 and re-attach the four connectors to the module. In the CNAMPX-16X60, orient and position the replacement module into the CNAMPX-16X60 and re-attach the four connectors to the module. If other modules have been removed to gain access to the defective module, orient and position the next module into the unit and re-attach the four connectors to the module. Repeat for each subsequent module. Service Guide - DOC. 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. 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. [. . . ] 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. Shipments arriving freight collect or without an RMA number shall be subject to refusal. CRESTRON reserves the right in its sole and absolute discretion to charge a 15% restocking fee, plus shipping costs, on any products returned with an RMA. [. . . ]