Tektronix Webcam 070-8030-01 사용자 설명서
Specifications
1–16
1780R-Series Service Manual
Table 1–9: Vectorscope SCH Phase Display (Cont.)
Characteristic
Performance
Check Step
Check Step
Supplemental Information
Performance Requirement
Input Timing
Correct relative SCH operation
with displayed video delayed up
to 2
with displayed video delayed up
to 2
ms or advanced up to 1.5 ms
relative to external reference.
Display Range
Ext Reference
360
_.
Int Reference
±
70
_.
Typically >80
_.
56
Table 1–10: CRTs and High Voltage Supplies
Characteristic
Performance Requirement
Supplemental Information
Performance
Check Step
Check Step
Waveform Monitor
Viewing Area
80
×
100 mm. Horizontal Scale
12.5 Divisions. Vertical Scale 170
IRE (NTSC), 1.19 V (PAL).
IRE (NTSC), 1.19 V (PAL).
Accelerating Potential
Nominally 20 kV.
Orthogonality
±
1
_.
57
Trace Rotation Range
≥±
1
_ from horizontal.
Typical adjustment range is
≈
8
_.
57
Vectorscope
Viewing Area
80
×
100 mm.
Accelerating Potential
Nominally 13.75 kV.
Orthogonality
±
1
_.
57
Table 1–11: Power Requirements
Characteristic
Performance Requirement
Supplemental Information
Performance
Check Step
Check Step
Mains Voltage Ranges
110 VAC
90 – 132 V.
Selected by rear-panel switch.
1
220 VAC
200 – 250 V.
Mains Frequency Range
48 – 66 Hz.