HP ProBook 630 Maintenance and Service Guide - Page 123
Cable management
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All display panel defects should be examined at the highest possible resolution using both the brightest and darkest possible backgrounds, because some subpixel failures might not be readily visible under certain conditions. ● Type 1: Bright dot on a dark background = Always On ● Type 2: Dark dot on a bright background = Always Off ● Combination = in any combination and any color that are always on or off Use the HP PC Hardware Diagnostics (UEFI) tool to determine numbers of pixels and their distance. HP uses the following set of criteria when damaged displays are submitted for warranty coverage. Source: http://support.hp.com/us-en/document/c00035844 Table 7-56 Electrical defect criteria Panel resolution Accept Reject Subpixel faults VGA, SVGA, SD, WSVGA, XGA, 720p, SD+, WXGA, HD N ≤ 2 Type 1 N ≤ 2 Type 2 N ≥ 3 Type 1 WXGA+, SXGA+, HD+, SXGA+ N ≤ 3 Type 1 N ≤ 3 Type 2 N ≥ 4 Type 1 WSXGA+, UXGA, FHD, WUXGA N ≤ 4 Type 1 N ≤ 4 Type 2 N ≥ 5 Type 1 QHD, QHD+, WQXGA, UD N ≤ 5 Type 1 N ≤ 5 Type 2 N ≥ 6 Type 1 Electrical defect clusters (defects within a 5x5 pixel block) Minimum distance between ANY allowable defects (unless otherwise specified) S ≥ 25 mm S < 25 mm Cluster with 2 or more subpixels with subpixel faults Not allowed Dim lines Not allowed Cross lines on/off Not allowed Horizontal lines on/off Not allowed Vertical lines on/off Not allowed NOTE: Examine all LCD panel defects at the highest possible resolution using both the brightest and darkest possible backgrounds, because some subpixel failures might not be readily visible under certain conditions. NOTE: Contact support for assistance if issues are not listed. Cable management Proper routing of the internal cables is critical to the operation of the computer. Follow good cable management practices when you have to remove and install components. ● Handle cables with care to avoid damage. ● Apply only the tension required to seat or unseat cables during insertion or removal from the connector. Additional information 111
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