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4-9

Calibrating and Adjusting

To adjust the oscilloscope display

Adjust H.HOLD (horizontal hold) to center the display horizontally.

6 Adjust FOCUS to achieve the best focus.

7 Adjust V.LIN (vertical linearity) to position all four corners of the half-

bright borders equally.

8 Adjust V.SIZE (vertical size) to center the display vertically at the

maximum allowable size without losing the half-bright borders.

Because V.LIN and V.SIZE interact with each other, you may need to re-adjust

the sizing and vertical centering of the pattern on the display.

Figure 4-3

Oscilloscope Display Board Adjustments

service.book Page 9 Wednesday, December 18, 2002 8:35 AM

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 117 118

Agilent 54621A/22A/24A 1
Oscilloscope and 1
Agilent 54621D/22D 1
Mixed-Signal Oscilloscope 1
The Oscilloscope At a Glance 2
In This Book 3
Contents 5
To inspect package contents 9
General Information 11
Figure 1-1 11
Table 1-2 13
Accessories available 13
Ω termination 13
Table 1-3. Power Cords 14
Performance Characteristics 15
Horizontal 18
Trigger System 19
Setting up the Oscilloscope 27
To adjust the handle 28
To power-on the oscilloscope 29
Intensity control 30
Dim Bright 30
To compensate your probe 31
To connect a printer 36
To connect an RS-232 cable 36
Using Quick Help 40
Language menu 41
2Press the 41
Cleaning the oscilloscope 43
Testing Performance 45
List of Test Equipment 47
Berg Strip, 8-by-2 1 48
Jumper wire 48
HP 34401A 51
Set up the oscilloscope 54
To verify bandwidth 57
To verify trigger sensitivity 61
Agilent 54622A/54622D/54624A 64
Agilent 54621A/54621D 65
Calibrating and Adjusting 67
To adjust the power supply 70
, and trigger parameters 73
Troubleshooting 77
If there is no trace display 79
If you cannot see a channel 81
Voltage Power Supply 83
To check out the oscilloscope 84
Power Supply” on page 5-11 85
Is the fan running? 86
Supply Voltage Tolerance 88
To remove the cabinet 94
To remove the fan 95
To remove the floppy drive 96
To remove the front panel 97
To remove the display 98
Gently apply outward 99
To remove the system board 100
Replacing Assemblies 101
Figure 6-8 101
To remove the power supply 102
Figure 6-10 103
Removing the power supply 104
To remove the handle 106
Replaceable Parts 107
To order a replacement part 109
Figure 7-1 110
Table 7-1 111
DECLARATION OF CONFORMITY 115
ICES/NMB-001 116

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