HP 9000 Series 500 Handbook page 17

Check Voltage Across
T101 for Red
T201 for Blu
T301 for Grn
on Video Drive Board
Check for continuity
T101 to Pin 8
T201 to Pin 6
P301 to Pin 11
From Video Drive Board
to CRT Yoke Assembly
Check
P3-5 for Red
P3-7 for Gm
P3-9 for Blu
on Video Drive Board
Yes
Defective Wiring -
Repair or Replace
No
Check
P4-2 for Red
P4-4 for Grn
P4-6 for Blu
98760 Troubleshooting 4-5
on Digital Video Board
Video Troubleshooting Flowchart