HP 9800 Handbook page 20

6-2 98750 Adjustments
CRT Graphics Raster Size
To adjust the graphics raster use this procedure:
• Remove the CRT top cover.
• Install the test binary cartridge and switch the power switch to on.
• Answer the questions and press k5 when its time to select a function key.
• Use the graphic width and graphic height controls on the A 7 4 assembly to align the edges
of the inverse video to the graphics raster outline on the CRT alignment mask. Use the
raster dimensions given in the specifications in chapter 1.
Display Logic
CRT Test
Graphics Height Control
A7409845-66574
CRr Analog
A7509845-66575
High Voltage Assembly
A7609845-66576
Interconnect Assembl
(Located On Bottom
Side Of A71 Assembly)
Figure 6-1
High Voltage Cage
A 71 09845-66571
CRT Motherboard
A77 09845-66577
Graphics Scanner
CRT Yoke'
A 76 09845-66576
Interconnect Assembly
(Located On Bottom
Side Of A71 Assembly)
A7909845-66579
GraphiCS Memory
CRT Bottle'
CRT Bezel
'CRT and Yoke are one
Assembly (09845-67160)