Red, Green, Or Blue Pixels Specifications; Dark Pixels Specifications; Newton's Rings - Agilent Technologies HP 8719D Service Manual

Red, Green, or Blue Pixels Specillcations
Red, green, or blue "stuck on" pixels may appear against a black background.
To test for these dots, press [!I ,$SRVIC!lX MESJU TESH L70_) @
In a properly working display, the following will not occur:
complete rows or columns of stuck pixels
more than 5 stuck pixels (not to exceed a maximum of 2 red or blue, and 3
2 or more consecutive stuck pixels
stuck pixels less than 6.5 mm apart

Dark Pixels Specifications

Dark "stuck on" pixels may appear against a white background. To test for
these dots, press &EJ -Z%lXKE #EH,U 'TE$TS @ Lxl] lZ@WJE TEBT
In a properly working display, the following will not occur:
more than 12 stuck pixels (not to exceed a maximum of 7 red, green, or
n
blue)
more than one occurrence of 2 consecutive stuck pixels
n
stuck pixels less than 6.5 mm apart
n

Newton's Rings

To check for the patterns known as Newton's Rings, change the display to white
by pressing the following keys:
Digital Control Troubleshooting