9–1
TDS 340A, TDS 360, TDS 380 Technical Reference
Diagrams and Circuit Board Illustrations
This section contains the troubleshooting procedures, block diagrams, circuit board
illustrations, component locator tables, waveform illustrations, and schematic diagrams.
Symbols
Graphic symbols and class designation letters are based on ANSI Standard Y32.2-1975.
Abbreviations are based on ANSI Y1.1-1972.
Logic symbology is based on ANSI/IEEE Standard 91-1984 in terms of positive logic.
Logic symbols depict the logic function performed and can differ from the manufacturer’s
data.
The tilde (~) preceding a signal name indicates that the signal performs its intended
function when in the low state.
Other standards used in the preparation of diagrams by Tektronix, Inc., include the
following:
Tektronix Standard 062-2476 Symbols and Practices for Schematic Drafting
ANSI Y14.159-1971 Interconnection Diagrams
ANSI Y32.16-1975 Reference Designations for Electronic Equipment
MIL-HDBK-63038-1A Military Standard Technical Manual Writing Handbook
Component Values
Electrical components shown on the diagrams are in the following units unless noted
otherwise:
Capacitors:
Values one or greater are in picofarads (pF).
Values less than one are in microfarads (
F).
Resistors:
Values are in Ohms (
).
Graphic Items and Special Symbols Used in This Manual
Each assembly in the instrument is assigned an assembly number (for example A5). The
assembly number appears in the title on the diagram, in the lookup table for the schematic
diagram, and corresponding component locator illustration. The Replaceable Electrical
Parts list is arranged by assembly in numerical sequence; the components are listed by
component number.
Locator Grid
Function Block Title
Internal Screw Adjustment
Onboard Jumper
Digital Ground
Refer to Assembly
& Diagram Number
Offboard Connector
Active Low Signal
Signal From
Another Diagram,
Same Board
Power Termination
Strap
Panel Control
Female Coaxial
Connector
Heat Sink
Decoupled Voltage
Diagram Number
Diagram Name
Component on back of board
Assembly Number
A
B
1
2
3
4
Component Locator Diagrams
The schematic diagram and circuit board component location illustrations have grids
marked on them. The component lookup tables refer to these grids to help you locate a
component. The circuit board illustration appears only once; its lookup table lists the
diagram number of all diagrams on which the circuitry appears.
Some of the circuit board component location illustrations are expanded and divided into
several parts to make it easier for you to locate small components. To determine which
part of the whole locator diagram you are looking at, refer to the small locator key shown
below. The gray block, within the larger circuit board outline, shows where that part fits
in the whole locator diagram. Each part in the key is labeled with an identifying letter that
appears in the figure titles under component locator diagrams.
Section of Circuit
Board Shown
Summary of Contents for TDS 340A
Page 4: ......
Page 12: ...Contents viii TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 16: ...Service Safety Summary xii TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 19: ......
Page 32: ......
Page 42: ...Operating Information 2 10 TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 43: ......
Page 49: ...Theory of Operation 3 6 TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 59: ...Theory of Operation 3 16 TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 60: ......
Page 82: ...Performance Tests 4 22 TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 83: ......
Page 91: ...Adjustment Procedures 5 8 TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 92: ......
Page 140: ...Troubleshooting 6 48 TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 142: ...Repackaging Instructions 6 50 TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 143: ......
Page 148: ......
Page 206: ...Electrical Parts List 8 58 TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 207: ......
Page 210: ...TDS 340A 360 380 OPTION BOARD BLOCK DIAGRAM A2 0 ...
Page 211: ......
Page 212: ...OPTION BUS AND GPIB A2 TDS 340A 360 380 1 ...
Page 213: ......
Page 214: ...TDS 340A 360 380 ROM PRINTER AND RS 232 A2 2 ...
Page 216: ...PRINTER POWER A3 1 TDS 340A 360 380 OPTION 14 ...
Page 218: ...A5 1 FLOPPY INTERFACE TDS 340A 360 380 ...
Page 222: ...CPU A6 TDS 340A 360 380 1 ...
Page 223: ......
Page 224: ...A6 TDS 340A 360 380 2 FPP POTS ...
Page 225: ......
Page 226: ...LEDS DRIVER A6 TDS 340A 360 380 3 ...
Page 227: ......
Page 228: ...SWITCHES A6 TDS 340A 360 380 4 ...
Page 233: ...9 26 TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 234: ...ROOT SHEET A11 A12 TDS 340A 360 0 ...
Page 235: ......
Page 236: ...TRIGGERS A11 A12 TDS 340A 360 1 TDS 340A ...
Page 237: ......
Page 238: ...ATTENUATORS A11 A12 TDS 340A 360 2 TDS 340A TDS 340A ...
Page 239: ......
Page 240: ...TRIGGER LOGIC AND TIME INTERPOLATOR A11 A12 TDS 340A 360 3 ...
Page 241: ......
Page 242: ...TIME BASE CONTROLLER A11 A12 TDS 340A 360 4 ...
Page 243: ......
Page 244: ...SAMPLER A11 A12 TDS 340A 360 5 ...
Page 245: ......
Page 246: ...CPU A11 A12 TDS 340A 360 6 TDS 340A ...
Page 247: ......
Page 248: ...DISPLAY A11 A12 TDS 340A 360 7 ...
Page 252: ...MAIN BLOCK DIAGRAM A13 TDS 380 0 MAIN BOARD 671 3753 00 389 2154 00 ...
Page 253: ......
Page 254: ...TRIGGERS A13 TDS 380 1 ...
Page 255: ......
Page 256: ...ATTENUATORS A13 TDS 380 2 ...
Page 257: ......
Page 258: ...TRIGGER LOGIC AND TIME INTERPOLATOR A13 TDS 380 3 ...
Page 259: ......
Page 260: ...TIMEBASE A13 TDS 380 4 ...
Page 261: ......
Page 262: ...SAMPLER A13 TDS 380 5 ...
Page 263: ......
Page 264: ...CPU A13 TDS 380 6 ...
Page 265: ......
Page 266: ...DISPLAY A13 TDS 380 7 ...
Page 269: ...9 62 TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 270: ...MONITOR BLOCK DIAGRAM A26 TDS 340A 360 380 0 ...
Page 271: ......
Page 272: ...INPUTS VIDEO AND VERTICAL DEFLECTION A26 TDS 340A 360 380 1 ...
Page 273: ......
Page 274: ......
Page 286: ...Mechanical Parts List 10 12 TDS 340A TDS 360 TDS 380 Technical Reference ...
Page 287: ......
Page 288: ......