Wavetek 145 Instruction Manual page 5

CONTENTS (Continued)
SECTION 7 PARTS LIST AND SCHEMATICS
IV
7.1 DRAWINGS .......................................................................................................... 7-1
7.2 ERRATA ............................................................................................................... 7-1
7.3 ORDERING.......................................................................................................... 7-1
7.4 INDEX OF FEDERAL SUPPLY CODES................................................................ 7-1
7.5 CAPACITOR VARIANCE...................................................................................... 7-3
ILLUSTRATIONS
Figure
Title
Page
2-1 Initial Setup . .. .. .. . .. ... .... .. . .... . .. .. .. . .... ... .. . . . .. .. . .. .. .. . .. .. . .. .. .................... .... .. . .. .. . .. .. .. . .. 2-2
2-2 Second Setup . . . . . .. . . . . . . .. . . .. . .. . . . .. .. . . . . . .. . . . .. . . . .. .. . .. . . . . . .. .. . .. .. . . . .. . . . .. .. .. . . . .. . .. .. .. . . . . . . .. . . . 2-3
3-1 Controls and Connectors..................................................................................... 3-1
3-2 Signal Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3-3 ECL Terminations................................................................................................. 3-4
3-4 Pulse Characteristics ... .. ..... ..... .. ... .. .. ... .. .. . .... ... .. ... .... ... ....... ... .... .. ... .. . .. .... . .... . .. .. .. 3-5
3-5 Waveform Characteristics.................................................................................... 3-6
3-6 VCG Voltage-to-Frequency Nomograph .............................................................. 3-7
3-7 Pulse Delay From Trigger .................................................................................... 3-7
4-1 Overall Block Diagram .. . .. .. . .. .. .. . .. .. . .. .. .. . .. .. . .. .. . .. .. .. . .. .. . .. .. .. .. . .. . .. .. .. . .. .. . .. .. .. . .. .. . .. .. 4-0
4-2 Basic Generator and Timing Diagram . .. .. .. .. .. .. . .. .. . .. .. . .. .. .. .. . .. .. . .. .. .. .. .. .. . .. . .. .. . .. . .. . 4-1
4-3 Trigger Circuit and Timing ..... .. ... .. ....... ... .. . .. .. .. .... .. .. .. .. ...... . ... .. ...... .. .. .. ...... .......... 4-3
4-4 Normal Mode Timing............................................................................................ 4-4
4-5 Delayed Mode Timing.......................................................................................... 4-4
4-6 Double Mode Timing............................................................................................ 4-5
4-7 Width and Delay One-Shots................................................................................. 4-5
5-1 Generator Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
5-2 Trig/Pulse Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7
6-1 Initial Checks, Generator Board........................................................................... 6-6
6-2 Generator Loop Checks, Generator Board.......................................................... 6-7
6-3 VCG Checks, Generator Board .. . .. .. . .. .. .. .. . .. .. .. .. .. .. . .. . .. .. .. .. . .. .. . .. .. .. . .. . .. .. . .. . .. .. .. .. .. 6-8
6-4 Generator Output Checks, Generator Board . .. .. . .. . .. . .. .. .. .. .. .. . . .. .. . .. .. .. .. . .. .. .. .. .. .. .. . 6-9
6-5 Trigger and Gate Mode Checks, Trig/Pulse Board .... .. .. ..... . ... .. ...... .. .. .. . .. .. .. .. . .. .. 6-10
6-6 Power Supply Checks, Trig/Pulse Board............................................................. 6-12
6-7 Generator Input and Output Checks ................................................................... 6-14
6-8 Pulse Mode Checks, Trig/Pulse Board ........ ..... .. . .... .. . .. .. .. .. ... . .. .. .. ... ... .. .. .. .. . .. .. .. .. 6-16
6-9 Pulse Generator Checks, Trig/Pulse Board .. .. .... .. ... .. .. ... .. .. ... .. ... .. .. . .. .. .. ...... .. ... .. . 6-18
NOTE
The following illustrations appear at the rear of this manual in the order shown.
Drawing Number
0102-00-0101
0004-00-0101
0102-00-0575
1101-00-0575
Title
Instrument Assembly and Parts List
Instrument Schematic
Chassis Assembly
Chassis Assembly Parts List