HP Model 748 HP Model 748 Service Handbook - Page 25
Hardware Support, Field Repair Philosophy
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Product Information Technical Information Hardware Support Field Repair Philosophy Field Repair Philosophy for these products is assembly, or board level. When a failure occurs, the problem is diagnosed to the assembly having the failed part, that assembly is then replaced. Some assemblies may be exchanged for rebuilt ones. Other assemblies are only available as new ones. Refer to appropriate service handbook for information on replacement parts. Additional Technical Information Additional technical information on these products can be found in the Models 743, 744, and 748 Technical Reference. Detailed information about architecture is provided. Schematics In support of the repair philosophy, this manual contains information to the assembly level. Schematics are not available for these products. Supported Configurations Only products with Hewlett-Packard approved parts, accessories, peripherals, operating systems and application programs are supported by Hewlett-Packard. Any product with other than HP approved hardware or software connected or installed must have the nonHP approved hardware and software removed by the customer before On-Site repair is accomplished. Repair Services Hewlett-Packard supports three repair services: Return to Hewlett-Packard Repair On-Site Repair Customer Repair For Return to Hewlett-Packard Repair, customers return the product to their local HP Sales and Service Office, where an HP Bench Repair Engineer troubleshoots, and repairs the hardware to the assembly level. The defective assembly is replaced with a new or rebuilt assembly and the product is returned to the customer. This service is available through a service contract or a time-and-materials basis. On-Site Repair is performed at the customer's site. This service is available through a service contract or a time-and-materials basis. Customers have the option of repairing their own HP products. Contact your nearest Hewlett-Packard Sales and Service Office for information concerning service training, special tools and test equipment, and spare parts. 1-15