Table Of Contents - Tektronix TDC Instruction Manual

TABLE OF CONTENTS (cont)
SECTION 3 THEORY OF OPERATION (cont) Page
PIN DRIVER 8 wesw cet eRe ee em we ee me eee em 3-9
General... 2. eee ee eee eee nee 3-9
PROMS ......... ee ee eee ee eee eee eee 3-10
Current Sources. «<i. gsisewuc ees Hee wwe eee LEDER ED BERS 3-10
SECTION 5
Introduction... 2... ee ee eee eee ee eee 4-1
TEST EQUIPMENT REQUIRED ............. 000. e ee ee eee eee nee 4-1
CHANNEL FREQUENCIES .......... cee eee ee eee eee 4-3
Measurement Techniques used in Procedure ............0 000 e cece eeee 4-4
Calibrating the 1450-1 Readout .......... 20.0... 00. 4-4
Measuring Frequency ........... cece eee ee eee eee 4-5
Setting up 0.2 dB Reference Flatness .......... 0.0.00 ce eee eee eee 4-5
PERFORMANCE CHECK ........... 0. cece ee ee eee eae 4-6
1. Check Retunn LOSS . wueeuew ses eae e ee Ces da WDOwO Gi BREE 4-8
2. Check Input Frequency Range ........... 00. e cece cece eee 4-8
3. Check Input Power Level Range ........... 0.0 c cee eee eee eens 4-8
4. Check Image Rejection ...... 2... .. eee eee 4-8
5. Check IF Rejection Ratio ........ ce ee ee 4-8
6. Check Visual IF Frequency ......... 0.0 ee eee eae 4-9
7 Gheck LO: OUT Level... seesaw cee ce RER TEED ed ee es 4-10
8. Check Variation in Frequency Response as a Function of AGC ...... 4-10
9. Check RF Attenuator Range (SYSTEM) .............0 00 eee eeae 4-11
10. Check SYSTEM Signal to Noise Ratio ............... 0.000000 4-12
11. Check SYSTEM AGC Range............ 2.0.00. e cee eee eee 4-13
12. Check SYSTEM Adjacent Channel and 2nd Adjacent Channel Cross
Modulation 2. ceawes ces cue we oo 8 WEES E EK CET EATS EE EDS 4-13
13. Check Variation in SYSTEM Frequency Response with AGC ........ 4-14
14. Check SYSTEM Chrominance Carrier/Aural Carrier/Visual Carrier Cross
Modulation ... 0... . ee eee eee eee 4-16
15. Check Readout Accuracy ........... 00.0 0c cece eee eee 4-17
16. Check Readout Resolution .......... 0.0.0: eee eee ee ee eee 4-17
ADJUSTMENT PROCEDURE asec ccs cvasewa se OUR ER es bee ROW Es 4-18
1. Check/Adjust LO Frequency, Amplitude, and Phase-Lock Loop...... 4-18
2. Check/Adjust Return Loss ........ 0... 00. eee eee eee eee 4-19
3. Check/Adjust IF Rejection 2... ... cee ee eee ees 4-22
4. Check/Adjust TDC Overall Flatness......... 0.0.0.0... 0 cee eae 4-22
5. Check/Adjust IF OUT Level ........ eee eee ee ee ees 4-22
MAINTENANCE
INTRODUCTION .. 0.0... , ee ee eee eee eee eens 5-1
CIGARING « sic mmm cs te MWR a WE EEE EDT Eades mma eee nen 5-1
Visual Inspection .. 0... . ee ee eee eee eee ee ae 5-1
REV A MAR 1980