Tektronix Webcam 070-8030-01 User Manual
Theory of Operation
3–4
1780R-Series Service Manual
Table 3–1: Schematics and Circuit Board Assemblies (Cont.)
Diagram
Number
Number
Assembly
Number
Number
Assembly Name
Schematic Name
32
Digital Shifter
Oscillator
A7
33
Horiz AFC & Post Regulators
Oscillator
A7
34
Diff Gain/Phase Alt Mode Switch
Oscillator
A7
35
Digital Recursive Filter
Filter
A15
36
Z-Axis
Z-Axis
A4
37
Timing Cursors
Z-Axis
A4
38
Timing Cursor Counters
Z-Axis
A4
39
CRT Display DAC
Z-Axis
A4
40
Scale Illumination & Trace Rotation
Z-Axis
A4
41
Vector High Volts
Vector High Volts
A3
42
Waveform High Volts
WFM Hi Volts
A16
43
Low Voltage Power Supply
Low Volts
A1
44
Vectorscope, Waveform, & Oscillator
Interconnect
A11
45
Z-Axis, Graticules, Vector HV, &
Power Supply
Power Supply
Interconnect, Waveform,
& Vector Grat Lights
& Vector Grat Lights
A11
A13
A14
A13
A14
46
MPU, & Front Panel Controls
Interconnect
A11