User Contributed MET/CAL PROCEDURE ============================================================================= INSTRUMENT: TEK.7A18: DUAL TRACE AMPLIFIER; ILCM 331; PERFORMANCE DATE: 05-May-93 AUTHOR: User Contributed REVISION: ILCM 12-331-CU2-A ADJUSTMENT THRESHOLD: 70% NUMBER OF TESTS: 34 NUMBER OF LINES: 173 CONFIGURATION: Tektronix CG5001 ============================================================================= STEP FSC RANGE NOMINAL TOLERANCE MOD1 MOD2 3 4 CON 1.001 HEAD {****7A18 DUAL TRACE AMPLIFIER PART 1/P****} 1.002 ASK+ P S M L T 1.003 ASK- R B J F W 1.004 RSLT = 1.005 DRAW 2 70 6 78 100 0 0100 1.006 SET 1.007 DISP The below listed additional equipment "or equivalant" 1.007 DISP will be required to perform this Performance. Obtain 1.007 DISP the equipment at this time. 1.007 DISP 1.007 DISP TEKTRONIX 7704 SERIES O'SCOPE 1.007 DISP TEKTRONIX 7B71 OR 7B85 TIMEBASE MODULE 1.008 HEAD ****7A18 PRELIMINARY EQUIPMENT CONFIGURATION**** 1.009 DISP Configure the 7A18 module into a functional O'Scope 1.009 DISP system as follows: 1.009 DISP (1) Turn 7704 series O'scope POWER OFF. 1.009 DISP (2) Insert 7A18 into LEFT VERT compartment. 1.009 DISP (3) Insert 7B SERIES TIME BASE in HORIZ compartment. 1.009 DISP (4) Turn 7704 series O'scope POWER ON. 1.010 HEAD ****** 7A18 PRELIMINARY CALIBRATION SETUP ****** 1.011 OPBR DO YOU WANT THE PRELIMINARY SET UP INFORMATION? 1.012 JMPF 1.018 1.013 SET DISPLAY MODE: CH1[Draw55,65,F][D4000] 1.013 SET TRIG. SOURCE: MODE[DRAW55,60,F][D4000] 1.013 SET CH1 VOLTS/DIV: 5mV[DRAW75,70,F][D4000] 1.013 SET CH1 AC-GND-DC: DC[DRAW70,70,F][D4000] 1.013 SET CH1 VAR. VOLTS/DIV: CAL,IN[DRAW75,70,F] 1.014 SET CH2 VOLTS/DIV: 5mV[DRAW25,70,F][D4000] 1.014 SET CH2 AC-GND-DC: DC[DRAW10,70,F][D4000] 1.014 SET CH2 VAR. VOLTS/DIV: CAL,IN[DRAW25,70,F][D4000] 1.014 SET CH2 POLARITY: +UP[DRAW50,5,F] 1.015 SET TIME BASE TIME/DIV: 1mSEC 1.015 SET TIME BASE COUPLING: AC 1.015 SET VAR. TIME/DIV: CAL,IN 1.015 SET TIME BASE TRIG MODE: AUTO 1.015 SET TIME BASE TRIG SOURCE: INTERNAL 1.016 DISP CH1 POSITION CONTROL: MIDRANGE[DRAW 78,25,F][D4000] 1.016 DISP CH2 POSITION CONTROL: MIDRANGE[DRAW33,25,F] 1.017 DISP 7704 VERT MODE: LEFT 1.017 DISP 7704 TRIG SOURCE: VERT MODE 1.017 DISP Configure o'scope HORIZONTAL MODE switches to 1.017 DISP coinside with location previously chosen for 1.017 DISP 7B SERIES Module. 1.018 DISP ALLOW AT LEAST 20 MINUTES WARM UP BEFORE PROCEEDING 1.019 HEAD {****7A18 CH1 DC BALANCE****} 1.020 DISP Position the trace to the center horizontal line with 1.020 DISP the CH1 position control. 1.021 MESS Switch CH1 VOLTS/DIV control between the 5mV and 1.021 MESS 10mV positions. 1.022 EVAL Check does trace move no more than O.5 Div.? 2.001 SET CH1 VOLTS/DIV: 10mV 2.001 SET CH1 VAR. VOLTS/DIV: OUT 2.002 MESS Turn {CH1 VOLTS/DIV VARIABLE control} from fully 2.002 MESS counterclockwise to fully clockwise. 2.003 EVAL Check does trace move no more than 0.5 Div.? 3.001 HEAD {****7A18 CH2 DC BALANCE****} 3.002 SET CH1 VAR. VOLTS/DIV: CAL,IN 3.002 SET DISPLAY MODE: CH2 3.003 DISP Position the trace to the center horizontal line with 3.003 DISP the CH2 position control. 3.004 MESS Switch CH2 VOLTS/DIV control between the 5mV and 3.004 MESS 10mV positions. 3.005 EVAL Check does the trace move no more than 0.5 Div.? 4.001 SET CH2 VOLTS/DIV: 10mV 4.001 SET CH2 VAR. VOLTS/DIV: OUT 4.002 MESS Turn {CH2 VOLTS/DIV VARIABLE control} from fully 4.002 MESS counterclockwise to fully clockwise. 4.003 EVAL Check does the trace move no more than 0.5 Div.? 5.001 SET CH2 VAR. VOLTS/DIV: CAL,IN 5.001 SET CH2 POLARITY: INVERT/DOWN 5.002 MESS 5.003 EVAL Check does the trace move no more than 0.5 Div.? 6.001 SET CH2 POLARITY: + UP 6.002 HEAD {****7A18 CH2 GAIN CHECK****} 6.003 ASK+ R 6.004 DISP Connect CG551 OUTPUT to the CH2 INPUT of the UUT. 6.005 MESS 6.006 DISP Note: Leave AC-GND-DC in DC during DEFLECTION TESTING. 6.007 MEM2 =CH2 VOLTS/DIV 6.008 RSLT =CH2 GAIN CONTROL SETTING 6.009 5001 5 20mVpp 1.5% 1kH 7.001 SET CH2 VOLTS/DIV: 10mV 7.002 5001 10 50mVpp 1.5% 1kH 8.001 HEAD {****7A18 CH1 GAIN CHECK****} 8.002 SET DISPLAY MODE: CH1 8.003 DISP Move CG551 OUTPUT to the CH1 INPUT of the UUT. 8.004 MESS 8.005 MEM2 =CH1 VOLTS/DIV 8.006 RSLT =CH1 GAIN CONTROL SETTING 8.007 5001 5 20mVpp 1.5% 1kH 9.001 SET CH1 VOLTS/DIV: 10mV 9.002 5001 10 50mVpp 1.5% 1kH 10.001 HEAD {***7A18 CH1 DEFLECTION FACTOR ACCURACY***} 10.002 MESS 10.003 5001 20 100mVpp 2% 1kH 11.001 5001 50 200mVpp 2% 1kH 12.001 5001 0.1 0.5Vpp 2% 1kH 13.001 5001 0.2 1Vpp 2% 1kH 14.001 5001 0.5 2Vpp 2% 1kH 15.001 5001 1 5Vpp 2% 1kH 16.001 5001 2 10Vpp 2% 1kH 17.001 5001 5 20Vpp 2% 1kH 18.001 HEAD {***7A18 CH2 DEFLECTION FACTOR ACCURACY***} 18.002 MEM2 =CH2 VOLTS/DIV 18.003 SET DISPLAY MODE: CH2 18.004 DISP Move CG551 OUTPUT to the CH2 INPUT of the UUT. 18.005 5001 20 100mVpp 2% 1kH 19.001 5001 50 200mVpp 2% 1kH 20.001 5001 0.1 0.5Vpp 2% 1kH 21.001 5001 0.2 1Vpp 2% 1kH 22.001 5001 0.5 2Vpp 2% 1kH 23.001 5001 1.0 5.0Vpp 2% 1kH 24.001 5001 2.0 10.0Vpp 2% 1kH 25.001 5001 5.0 20Vpp 2% 1kH 26.001 HEAD {***7A18 CH2 VARIABLE VOLTS "RANGE"***} 26.002 DISP CH1 VOLTS/DIV: 10mV 26.002 DISP CH2 VOLTS/DIV:10mV 26.003 SET CH2 VAR. VOLTS/DIV: OUT 26.004 5001 50mVpp 1kH -D S 26.005 MESS Turn CH2 VARIABLE control fully counterclockwise. 26.006 EVAL Check is the trace < or = 2 Div.? 27.001 5001 50mVpp 1kH -D S 27.002 MESS Switch CH2 POLARITY from +UP to INVERT. 27.003 EVAL Check does the trace remain < or= 2 Div.? 28.001 HEAD {***7A18 CH1 VARIABLE VOLTS "RANGE"***} 28.002 SET CH2 VAR. VOLTS/DIV: IN 28.002 SET CH1 VAR. VOLTS/DIV: OUT 28.002 SET DISPLAY MODE: CH1 28.003 DISP CH2 POLARITY: +UP 28.004 DISP Move CG551 OUTPUT to the CH1 INPUT of the UUT. 28.005 5001 50mVpp 1kH -D S 28.006 MESS Turn CH1 VARIABLE control fully counterclockwise. 28.007 EVAL Check is the trace < or = 2 Div.? 29.001 DISP Disconnect the CG551 OUTPUT from the UUT. 29.002 SET CH1 VAR. VOLTS/DIV: IN 29.003 HEAD {****TRACE IDENTIFY****} 29.004 DISP Center trace vertically with CH1 POSITION control. 29.005 MESS Press CH1 IDENTIFY button. 29.006 EVAL Check does the trace move upward?[DRAW78,25,F] 30.001 SET DISPLAY MODE: CH2 30.002 DISP Center trace vertically with CH2 POSITION control. 30.003 MESS Press CH2 IDENTIFY button. 30.004 EVAL Check does the trace move upward?[DRAW33,33,F] 31.001 HEAD {***7A18 CH1 LOW-FREQUENCY COMPENSATION***} 31.002 SET TIME BASE TIME/DIV: .2mSEC 31.002 SET DISPLAY MODE: CH1 31.003 DISP Connect CG551 OUTPUT with a 50 ohm terminator to 31.003 DISP the CH1 INPUT of the UUT. 31.004 5001 60mVpp 1kH -D E S L 31.005 MESS Check for Square Corner and Flat Top within 0.2 Div. 31.006 EVAL 32.001 HEAD {***7A18 CH2 LOW FREQUENCY COMPENSATION***} 32.002 SET DISPLAY MODE: CH2 32.003 DISP Move CG551 OUTPUT with 50 Ohm terminator to CH2 INPUT. 32.004 5001 60mVpp 1kH -D E S L 32.005 EVAL 33.001 CALL TEK.7A18: DUAL TRACE AMPLIFIER PART 2/P 33.002 JMP 34.001 33.003 EVAL 34.001 CALL TEK.7A18: DUAL TRACE AMPLIFIER PART 3/P 34.002 END