
Focus Adjustment
Note
Geometry adjustments must be performed before making the focus adjustment.
1. Remove the rear and side fan. Refer to section 6, "Service," for the fan removal procedures.
2. From the Display Test menu of the Mainframe Test system, select the white cross-hatch test pattern.
3. Adjust FOCUS (RV701), located on the rear PC board, for best overall focus.
Landing and Convergence Adjustment Preparation
1. From the Display Test menu, select a white raster pattern and check for color purity. Repeat this
step using the Red, Green, and Blue raster patterns and check for color purity.
If the color purity is correct, do not perform this Landing and Convergence adjustment.
2. Turn off the instrument, then disconnect the power cord. Loosen the deflection yoke clamp screw.
3. Remove the deflection yoke spacers by moving the deflection yoke towards the rear of the
instrument, then by removing the spacers.
Note
The deflection yoke spacers are tapered rubber blocks located between the front
of the yoke and the rear of the CRT funnel.
4. Plug the power cord into the instrument, then turn on the instrument. For thermal stability, allow the
instrument to warm up for 20 minutes.
Exercise caution when moving purity magnets. Power is applied to the
instrument and high voltages are present around the CRT.
HP 16500A/16501A - Adjustments
4-12
Содержание 16500A
Страница 14: ...Figure 1 1 Dimensional Detail HP 16500A 16501A General Information 1 6 ...
Страница 19: ...Figure 2 2 Power Cord Configurations HP 16500A 16501A Installation 2 3 ...
Страница 33: ...TABLE OF CONTENTS Section III Performance Tests Page 3 1 Introduction 3 1 ...
Страница 43: ...Figure 4 11 CRT Module Adjustment Flow Diagram HP 16500A 16501A Adjustments 4 8 ...
Страница 60: ...Figure 5 1 HP 16500A Assembly Parts HP 16500A 16501A Replaceable Parts 5 4 ...
Страница 62: ...Figure 5 2 HP 16500A Chassis Parts HP 16500A 16501A Replaceable Parts 5 6 ...
Страница 65: ...Figure 5 3 HP 16501A Assembly Parts HP 16500A 16501A Replaceable Parts 5 10 ...
Страница 67: ...Figure 5 4 HP 16501A Chassis Parts HP 16500A 16501A Replaceable Parts 5 12 ...
Страница 71: ...Figure 6 1 HP 16500A 16501A System Overview HP 16500A 16501A Service 6 2 ...
Страница 73: ...Figure 6 2 Microprocessor Block Diagram HP 16500A 16501A Service 6 4 ...
Страница 102: ...This page intentionally left blank HP 16500A 16501A Service 6 33 ...
Страница 106: ...Figure 6 32 Power Supply Check HP 16500A 16501A Service 6 37 ...
Страница 108: ...Figure 6 33 Power Supply Pins HP 16500A 16501A Service 6 39 ...
Страница 118: ...Figure 6 39 Power Supply Replacement HP 16500A 16501A Service 6 49 ...
Страница 120: ...Figure 6 40 Mother Board Replacement HP 16500A 16501A Service 6 51 ...
Страница 122: ...Figure 6 41 Rear Fan Replacement HP 16500A 16501A Service 6 53 ...
Страница 124: ...Figure 6 42 Side Fan Replacement HP 16500A 16501A Service 6 55 ...
Страница 126: ...Figure 6 43 Rear Disk Drive Replacement HP 16500A 16501A Service 6 57 ...
Страница 128: ...Figure 6 44 Front Disk Drive Replacement HP 16500A 16501A Service 6 59 ...
Страница 130: ...Figure 6 45 Microprocessor Board Replacement HP 16500A 16501A Service 6 61 ...
Страница 132: ...Figure 6 46 Front Panel Board Replacement HP 16500A 16501A Service 6 63 ...
Страница 134: ...Figure 6 47 Color Display Module Removal HP 16500A 16501A Service 6 65 ...
Страница 136: ...Figure 6 48 Transferring Parts HP 16500A 16501A Service 6 67 ...
Страница 138: ...Figure 6 49 Color Display Module Installation HP 16500A 16501A Service 6 69 ...
Страница 140: ...Figure 6 50 Expansion Interface Board Replacement HP 16500A 16501A Service 6 71 ...
Страница 142: ...Figure 6 53 Mainframe Interface Board Replacement HP 16500A 16501A Service 6 73 ...