Fluke MET/CAL Procedure ============================================================================= INSTRUMENT: Philips PM 3320A: CAL ADJ /5500+SC300,8842 DATE: 02-Oct-97 AUTHOR: Fluke REVISION: $Revision: 1.1 $ ADJUSTMENT THRESHOLD: 70% NUMBER OF TESTS: 1 NUMBER OF LINES: 899 CONFIGURATION: Fluke 8842A CONFIGURATION: Fluke 5500A (SC) ============================================================================= #CONFIGURATION: Bench Oscilloscope STEP FSC RANGE NOMINAL TOLERANCE MOD1 MOD2 3 4 CON 1.001 ASK- D N P J F W 1.002 DISP This procedure was "cloned" from a CG 5011 based 1.002 DISP procedure that was tested with the UUT. However, this 1.002 DISP procedure has not been tested with the UUT. 1.003 HEAD 9.1 GENERAL INFORMATION 1.004 DISP The following information provides the complete 1.004 DISP adjusting procedure for the instrument. As various 1.004 DISP control functions are interdependent, a certain order 1.004 DISP of adjustment is necessary. The procedure is, therefore, 1.004 DISP presented in a sequence which is best suited to this 1.004 DISP order, cross-reference being made to any circuit which 1.004 DISP may affect a particular adjustment. 1.005 DISP Before any adjustment, the instrument must attain its 1.005 DISP normal operating temperature. 1.005 DISP 1.005 DISP Warming-up time under average conditions is 30 min. 1.006 DISP Tolerances given are for the instrument under test and 1.006 DISP do not include test equipment error. 1.006 DISP 1.006 DISP The most accurate display adjustments are make with a 1.006 DISP stable, well-focused low intensity display. 1.006 DISP 1.006 DISP All controls that are mentioned without item numbers are 1.006 DISP located on the outside of the instrument. 1.007 DISP [32] WARNING 1.007 DISP The opening of covers or removal of parts, except those 1.007 DISP to which access can be gained by hand, is likely to 1.007 DISP expose live parts, and also accessible terminals may be 1.007 DISP live. The instrument shall be disconnected from all 1.007 DISP voltage sources before any adjustment, replacement or 1.007 DISP maintenance and repair during which the instrument will 1.007 DISP be opened. 1.008 DISP If afterwards any adjustment, maintenance or repair of 1.008 DISP the opened instrument under voltage is inevitable, it 1.008 DISP shall be carried out only by a qualified person who is 1.008 DISP aware of the hazard involved. Bear in mind that 1.008 DISP capacitors inside the instrument may still be charged 1.008 DISP even if the instrument has been separated from all 1.008 DISP voltage sources. 1.009 HEAD 9.3 ADJUSTING PROCEDURE 1.010 DISP NOTE: Always use an insulated adjustment tool. 1.011 HEAD 5.2 REMOVING THE COVERS 1.012 DISP The instrument is protected by three covers: a front 1.012 DISP protection cover, a top cover and a bottom cover. To 1.012 DISP facilitate the removal of the instrument's covers, first 1.012 DISP put the fromt protection cover in postition. The proceed 1.012 DISP as follows: 1.012 DISP 1.012 DISP Hinge the carrying handle clear of the front protection 1.012 DISP cover. 1.013 DISP Stand the instrument on its protective front cover on a 1.013 DISP flat surface. 1.013 DISP 1.013 DISP Unscrew the two screws present in the left foot and the 1.013 DISP two screws in the right foot at the rear panel and 1.013 DISP remove these feet. 1.014 DISP The top cover and the bottom cover (without carrying 1.014 DISP handle) can be removed by shifting them backwards and 1.014 DISP lifting them free of the instrument. 1.015 DISP Connect the UUT to the line power and switch it on. 1.016 HEAD 9.3.2 POWER SUPPLY ADJUSTMENTS 1.017 PIC 3320A20 (10,20,R/W) "Connect the 8842A Input Hi to" 1.017 PIC (11,20,R/W) "X4609 and Input Lo to X4611." 1.018 PIC 3320A20 (6,3,R/W) "Note the location of R4607" 1.019 MESS Adjust R4607 for an 8842A reading of 10.0+/-0.1V. 1.020 8842 10V S 2W 1.021 MESS 1.022 PIC 3320A33 (7,48,R/W) "Connect the 8842A Input Hi to" 1.022 PIC (8,48,R/W) "X2517 and Input Lo to X2518." 1.023 PIC 3320A33 (5,44,R/W) "<- Note the location of R462" 1.024 MESS Adjust R462 for an 8842A reading of 5V +/-0.1V. 1.025 8842 5V S 2W 1.026 MESS 1.027 DISP Disconnect the 8842A from the UUT. 1.028 HEAD 9.3.3 CRT ADJUSTMENTS 1.029 PIC 3320A1 (6,16,R/W) " NOTE " 1.029 PIC (7,16,BL/W) "In the case that your instrument " 1.029 PIC (8,16,BL/W) "is completely misadjusted or after" 1.029 PIC (9,16,BL/W) "exchange of A1 it is recommended " 1.029 PIC (10,16,BL/W) "to turn R2658, R2659, R2678 and " 1.029 PIC (11,16,BL/W) "and R2682 completey CCW. Moreover " 1.029 PIC (12,16,BL/W) "it may be necessary to position " 1.029 PIC (13,16,BL/W) "the CRT text by means of: " 1.029 PIC (14,16,BL/W) " R2513 (vertical gain) " 1.029 PIC (15,16,BL/W) " R2533 (vertical position) " 1.029 PIC (16,16,BL/W) " R2566 (horizontal gain) " 1.029 PIC (17,16,BL/W) " R2571 (horizontal position) " 1.030 HEAD 9.3.3 CRT INTENSITY: DISPLAY 0 1.031 DISP Press the top and bottom softkeys together at the same 1.031 DISP moment to switch-on the service menu. 1.031 DISP Press softkey CHECK&ADJ >. 1.031 DISP Press softkey DISPLAY > to select 1.031 DISP CHECK& ADJ DISPLAY 0. 1.032 DISP Set INTENS TRACE and INTENS TEXT controls 90 degrees 1.032 DISP from their CCW stop. 1.033 PIC 3320A1 (4,15,R/W) "Adjust R2637 so that the pattern" 1.033 PIC (5,15,R/W) "and the text are just visible." 1.034 HEAD 9.3.3 CRT FOCUS AND ASTIGMATISM: DISPLAY 0 1.035 DISP Set FOCUS, INTENS TRACE and INTENS TEXT controls to 1.035 DISP their mid-position. 1.036 PIC 3320A1 (4,15,R/W) "Adjust R2609 and R2832 for a sharp" 1.036 PIC (5,15,R/W) "and wellSCefined test pattern." 1.037 OPBR Are the points exactly round during changes in the 1.038 OPBR INTENSITY setting? 1.039 JMPF 1.034 1.040 HEAD 9.3.3 CRT TRACE ROTATION: DISPLAY 0 1.041 DISP Adjust front panel TRACE ROTATION 1.041 DISP so that the horizontal line on the C.R.T is exactly in 1.041 DISP line with the horizontal graticule lines. 1.042 HEAD 9.3.4 VERTICAL BALANCE: DISPLAY 1 1.043 DISP Press softkey NEXT to select 1.043 DISP CHECK& ADJ DISPLAY 1. 1.044 PIC 3320A1 (21,19,R/W) "<- Note the location of R2334" 1.045 PIC 3320FIG1 (1,60,R/W) "Now the display" 1.045 PIC (2,60,R/W) "switches between" 1.045 PIC (3,60,R/W) "two patterns of" 1.045 PIC (4,60,R/W) "which one is like" 1.045 PIC (5,60,R/W) "like the picture." 1.045 PIC (7,60,R/W) "Adjust R2334 so" 1.045 PIC (8,60,R/W) "that the vertical" 1.045 PIC (9,60,R/W) "jump of the small" 1.045 PIC (10,60,R/W) "horizontal lines" 1.045 PIC (11,60,R/W) "is <=0.1 div." 1.046 HEAD 9.3.4 VARIABLE HORIZONTAL GAIN BALANCE: DISPLAY 2 1.047 DISP Press softkey NEXT to select 1.047 DISP CHECK& ADJ DISPLAY 2. 1.048 PIC 3320A1 (15,15,R/W) "Adjust R2377 so that the horizontal" 1.048 PIC (16,15,R/W) "jump of the dot in the center of " 1.048 PIC (17,15,R/W) "the screen is <=0.1 div. " 1.049 HEAD 9.3.4 COMPENSATION OF CRT TOLERANCES: HORZ, DISPLAY 3 1.050 DISP Press softkey NEXT to select 1.050 DISP CHECK& ADJ DISPLAY 3. 1.051 PIC 3320A1 (15,15,R/W) "Adjust R2571 so that the horizontal" 1.051 PIC (16,15,R/W) "deviation of the dot from the " 1.051 PIC (17,15,R/W) "center of the screen is <=0.1 div. " 1.052 HEAD 9.3.4 COMPENSATION OF CRT TOLERANCES: VERT, DISPLAY 3 1.053 PIC 3320A1 (15,15,R/W) "Adjust R2533 so that the vertical " 1.053 PIC (16,15,R/W) "deviation of the dot from the " 1.053 PIC (17,15,R/W) "center of the screen is <=0.1 div. " 1.054 HEAD 9.3.4 VERTICAL GAIN: x5, DISPLAY 4 1.055 DISP Press softkey NEXT to select 1.055 DISP CHECK& ADJ DISPLAY 4. 1.056 PIC 3320A1 (15,15,R/W) "Adjust R2531 so that the vertical " 1.056 PIC (16,15,R/W) "distance between the two horizontal" 1.056 PIC (17,15,R/W) "lines is 8.0+/-0.1 div. " 1.057 HEAD 9.3.4 VERTICAL GAIN: x1, DISPLAY 5 1.058 DISP Press softkey NEXT to select 1.058 DISP CHECK& ADJ DISPLAY 5. 1.059 PIC 3320FIG1 1.060 PIC 3320A1 (15,15,R/W) "Adjust R2513 so that the vertical " 1.060 PIC (16,15,R/W) "distance between the two horizontal" 1.060 PIC (17,15,R/W) "lines is 8.0+/-0.1 div. " 1.061 HEAD 9.3.4 VERTICAL GAIN: /5, DISPLAY 6 1.062 DISP Press softkey NEXT to select 1.062 DISP CHECK& ADJ DISPLAY 6. 1.063 PIC 3320A1 (16,15,R/W) "<- Note the position of R2516 " 1.064 PIC 3320FIG2 (8,62,R/W) "Adjust R2516 so" 1.064 PIC (9,62,R/W) "that the vertical" 1.064 PIC (10,62,R/W) "distance between" 1.064 PIC (11,62,R/W) "the two horizontal" 1.064 PIC (12,62,R/W) "lines a & b is" 1.064 PIC (13,62,R/W) "8.0+/-0.1 div." 1.065 HEAD 9.3.4 HORIZONTAL GAIN: DISPLAY 5 1.066 DISP Press softkey PREVIOUS to select 1.066 DISP CHECK& ADJ DISPLAY 5. 1.067 PIC 3320A1 (15,15,R/W) "<- Note the position of R2566 " 1.068 PIC 3320FIG1 (8,60,R/W) "Adjust R2566 so" 1.068 PIC (9,60,R/W) "that the distance" 1.068 PIC (10,60,R/W) "between the start-" 1.068 PIC (11,60,R/W) "ing points of the" 1.068 PIC (12,60,R/W) "small horizontal" 1.068 PIC (13,60,R/W) "lines a & b is" 1.068 PIC (14,60,R/W) "10.0+/-0.1 div." 1.069 HEAD 9.3.4 OVERSCAN SUPPRESSION: DISPLAY 7 1.070 DISP Press softkey NEXT twice to select 1.070 DISP CHECK& ADJ DISPLAY 7. 1.071 PIC 3320FIG3 1.072 PIC 3320A1 (11,15,R/W) "Adjust R2678 so that the test " 1.072 PIC (12,15,R/W) "pattern in the left-hand side of " 1.072 PIC (13,15,R/W) "the screen is just at its biggest. " 1.073 PIC 3320A1 (9,15,R/W) "Adjust R2682 so that the test " 1.073 PIC (10,15,R/W) "pattern in the right-hand side of " 1.073 PIC (11,15,R/W) "the screen is just at its biggest. " 1.074 PIC 3320A1 (10,15,R/W) "Adjust R2658 so that the test " 1.074 PIC (11,15,R/W) "pattern in the bottom side of the " 1.074 PIC (12,15,R/W) "screen lies 0.1 div. outside the " 1.074 PIC (13,15,R/W) "graticule of the screen. " 1.075 PIC 3320A1 (10,15,R/W) "Adjust R2659 so that the test " 1.075 PIC (11,15,R/W) "pattern in the top side of the " 1.075 PIC (12,15,R/W) "screen lies 0.1 div. outside the " 1.075 PIC (13,15,R/W) "graticule of the screen. " 1.076 DISP Press AUTO to leave the service menu. 1.077 HEAD 9.3.5 P^2CCD PRE-ADJUSTMENT 1.078 OPBR NOTE: The following steps must only be done if the 1.078 OPBR instrument is completely misadjusted or after 1.078 OPBR replacement of A33. 1.078 OPBR Do you wish to perform the adjustments? 1.079 JMPF 1.117 1.080 HEAD 9.3.10 AUTO OFFSET LEVEL 1.081 DISP Connect the 5500A Scope Output to UUT Channel A. 1.082 PIC 3320A32 (9,16,R/W) "<- Connect the 8842A to X7007 and " 1.082 PIC (10,26,R/W) " chassis ground. " 1.083 5500 100mVpp 1kH SI SC S 1.084 DISP Press AUTO. 1.085 DISP Set VERTICAL AMPL/DIV ch.A to 100mV. 1.086 PIC 3320A32 (13,16,R/W) "<- Note the location of R7052 " 1.087 MESS Adjust R7052 for an 8842A reading of 0.0+/-0.1V. 1.088 8842 0V S 2W 1.089 MESS 1.090 5500 * S 1.091 DISP Disconnect the 5500A from the UUT. 1.092 HEAD 9.3.11 OUTPUT VOLTAGE CALIBRATION GENERATOR 1.093 DISP Connect the 8842A INPUT HI and LO to UUT CAL output. 1.094 PIC 3320A1 (22,15,R/W) "<- Note the location of R2703 " 1.095 MESS Adjust R2703 for an 8842A reading of 500mV. 1.096 8842 500mV 2kH S 2W 1.097 MESS 1.098 8842 * S 1.099 DISP Disconnect the 8842A from the UUT. 1.100 HEAD 9.3.12 PLOT OUTPUT: VERTICAL 1.101 DISP Plug the plot cable into the DIN plot output socket at 1.101 DISP the rear of the instrument. 1.102 DISP Connect the UUT CAL output to UUT Channel A and B. 1.103 DISP Press AUTO. 1.104 DISP Set VERTICAL AMPL/DIV ch.A & ch.B to 100mV. 1.104 DISP Press DISPLAY. 1.105 DISP Press softkey A versus B. 1.105 DISP Press softkey to select R0 ON. 1.105 DISP Press SAVE/PLOT. 1.105 DISP Press softkey SELECT >. 1.105 DISP Press softkey ANALOG >. 1.105 DISP Press softkey UP or DOWN to select + 200ms/DT. 1.106 DISP Connect the 8842A to the UUT as follows: 1.106 DISP [32] 8842A INPUT HI to UUT VERT PLOT OUTPUT HI (RED) 1.106 DISP [32] 8842A INPUT LO to UUT PLOT OUTPUT LO (BLACK) 1.107 MESS Press SAVE/PLOT. 1.107 MESS Press softkey ANALOG >. 1.107 MESS The oscilloscope starts the plot action. This can be 1.107 MESS seen because the dot moves from left to right on the 1.107 MESS bottom of the screen. 1.107 MESS Adjust R2738 on A1 for maximum 8842A reading of 1000mV. 1.108 8842 1000mV S 2W 1.109 MESS 1.110 DISP Press softkey STOP. 1.111 HEAD 9.3.12 PLOT OUTPUT: HORIZONTAL 1.112 DISP Connect the 8842A to the UUT as follows: 1.112 DISP [32] 8842A INPUT HI to UUT HORZ PLOT OUTPUT HI (BLUE) 1.112 DISP [32] 8842A INPUT LO to UUT PLOT OUTPUT LO (BLACK) 1.113 MESS Press SAVE/PLOT. 1.113 MESS Press softkey ANALOG >. 1.113 MESS The oscilloscope starts the plot action. This can be 1.113 MESS seen because the dot moves from left to right on the 1.113 MESS bottom of the screen. 1.113 MESS Adjust R2728 on A1 for maximum 8842A reading of 1000mV. 1.114 8842 1000mV S 2W 1.115 MESS 1.116 DISP Press softkey STOP. 1.116 DISP Press softkey SELECT >. 1.116 DISP Press softkey ANALOG >. 1.116 DISP Press softkey UP or DOWN to select + 20ms/DT. 1.116 DISP Press AUTO. 1.117 HEAD 9.3.6 CORRECTION CIRCUIT 1.118 MATH M[3] = 0.1 1.119 MEM2 =ch.A and ch.B 1.120 DISP Connect the 5500A Scope Output to UUT Channel A. 1.121 PIC 3320A1 (2,55,R/W) "Turn potentiometer R721" 1.121 PIC (3,55,R/W) "fully CCW." 1.122 DISP Press AUTO. 1.123 DISP Press VERTICAL COUPLING. 1.123 DISP Press softkeys to select ch.A & ch.B 50 Ohm. 1.123 DISP Set VERTICAL AMPL/DIV ch.A & ch.B to 100mV. 1.124 DISP Set HORIZONTAL TIME/DIV to 10us. 1.125 5500 100 600mVpp 50kH SI SC N L 1.126 5500 mVpp 1MH SI SC S L 1.127 DISP Set HORIZONTAL TIME/DIV to 500ns. 1.128 MEMI Enter the amplitude (pp) in divisions. 1.129 MATH M[1] = MEM - 6 1.130 MATH MEM1 = M[1] 1.131 JMPF 1.135 1.132 MATH MEM1 = M[1] - M[3] 1.133 JMPT 1.138 1.134 JMP 1.141 1.135 MATH MEM1 = M[1] + M[3] 1.136 JMPF 1.138 1.137 JMP 1.141 1.138 MATH MEM = 2 * M[1] + 6 1.139 DISP Adjust R721 for an amplitude of [MEM] div. 1.140 JMP 1.124 1.141 5500 * S 1.142 DISP Connect the 5500A Scope Output to UUT Channel B. 1.143 DISP Set HORIZONTAL TIME/DIV to 10us. 1.144 DISP Press AUTO. 1.145 5500 100 600mVpp 50kH SI SC N L 1.146 5500 mVpp 1MH SI SC S L 1.147 DISP Set HORIZONTAL TIME/DIV to 500ns. 1.148 MEMI Enter the amplitude (pp) in divisions. 1.149 MATH M[2] = MEM - 6 1.150 MATH MEM1 = MEM - 6 1.151 JMPF 1.155 1.152 MATH MEM1 = M[2] - 0.1 1.153 JMPT 1.401 1.154 JMP 1.160 1.155 MATH MEM1 = M[2] + 0.1 1.156 JMPF 1.158 1.157 JMP 1.403 1.158 MATH M[3] = (M[1] + M[2]) / 2 1.159 JMP 1.121 1.160 5500 * S 1.161 DISP Disconnect the 5500A from the UUT. 1.162 ASK- F 1.163 DISP Press softkeys to select ch.A & ch.B 1 MOhm. 1.164 HEAD 9.3.7 OFFSET OF ATTENUATORS: ch.A, VERTICAL 0 1.165 DISP Press the top and bottom softkeys together at the same 1.165 DISP moment to switch-on the service menu. 1.165 DISP Press softkey CHECK&ADJ>. 1.165 DISP Press softkey VERTICAL > to select 1.165 DISP CHECK& ADJ VERTICAL 0. 1.166 PIC 3320A35 (3,26,R/W) "Adjust R7451 so that the jump" 1.166 PIC (4,26,R/W) "of the upper trace is minimal." 1.167 HEAD 9.3.7 OFFSET OF ATTENUATORS: ch.B, VERTICAL 0 1.168 PIC 3320A35 (3,26,R/W) "Adjust R7454 so that the jump" 1.168 PIC (4,26,R/W) "of the lower trace is minimal." 1.169 DISP Press AUTO to leave the service menu. 1.170 HEAD 9.3.7 GAIN IN A/B DIRECT MODE 1.171 DISP Connect the 5500A Scope Output to UUT Channel A and B 1.171 DISP using a BNC tee and equal length BNC cables. 1.172 5500 2Vpp 1kH SI SC S 1.173 DISP Press AUTO. 1.174 DISP Press VERTICAL COUPLING. 1.174 DISP Press softkeys to select ch.A & ch.B DC. 1.174 DISP Set VERTICAL AMPL/DIV ch.A & ch.B to 500mV. 1.174 DISP Set VERTICAL VARIABLE ch.A & ch.B to CAL. 1.174 DISP Set HORIZONTAL TIME/DIV to 2ms. 1.174 DISP Press VERTICAL MODE. 1.174 DISP Press softkey to select ADD. 1.174 DISP Press softkey to select B-INVERT on. 1.175 PIC 3320A32 (20,35,R/W) "Adjust R5102 for a signal display" 1.175 PIC (20,69,R/W) "<=0.1 div." 1.176 DISP Press softkey to select B-INVERT off. 1.177 5500 * S 1.178 HEAD 9.3.7 GAIN AND CORRECTION STROKE IN P^2CCD-MODE: ch.A 1.179 DISP Remove the shielding plate from A33 (P^2CCD unit). 1.179 DISP Put the instrument upside down, so that the P^2CCDs 1.179 DISP achieve the correct temperature. 1.180 DISP Connect the 5500A Scope Output to UUT Channel A. 1.181 DISP Press softkey to select A. 1.181 DISP Press VERTICAL COUPLING. 1.181 DISP Press softkey to select ch.A GROUND. 1.181 DISP Set HORIZONTAL TIME/DIV to 200us. 1.181 DISP Set VERTICAL SHIFT ch.A to center trace. 1.181 DISP Set HORIZONTAL TIME/DIV to 500us. 1.182 PIC 3320A33 (21,27,R/W) "<- Adjust R8139 to vertically " 1.182 PIC (21,57,R/W) "center the trace" 1.182 PIC (22,43,R/W) "on the screen." 1.183 DISP Press softkey to select ch.A DC. 1.183 DISP Set VERTICAL AMPL/DIV ch.A to 500mV. 1.184 5500 2Vpp 1kH SI SC S 1.185 DISP Set VERTICAL SHIFT ch.A to center trace. 1.186 PIC 3320A33 (13,20,R/W) "<- Adjust R8322 for vertical" 1.186 PIC (13,49,R/W) "deflection of 4.00+/-0.05 div." 1.186 PIC (11,22,R/W) "<- Adjust R8319 to keep the trace" 1.186 PIC (11,56,R/W) "vertically centered." 1.187 DISP Set HORIZONTAL TIME/DIV to 200us. 1.188 PIC 3320A33 (15,9,R/W) "<- Measure the voltage at X3386" 1.188 PIC (15,41,R/W) "with the oscilloscope" 1.188 PIC (16,25,R/W) "(external trigger)." 1.188 PIC (13,25,R/W) "<- Note the location of R8342." 1.189 DISP Set the measuring oscilloscope to 1ms/div and 200mV/div. 1.190 PIC 3320FIG5 (10,4,BR/LW) "Adjust R8342 so that the" 1.190 PIC (10,29,BR/LW) "squarewave amplitude" 1.190 PIC (11,4,BR/LW) "in the acquisition stroke is minimal." 1.191 DISP Press softkey to select ch.A GROUND. 1.191 DISP Set VERTICAL SHIFT ch.A to center trace. 1.191 DISP Set HORIZONTAL TIME/DIV to 500us. 1.192 PIC 3320A33 (12,22,R/W) "<- Adjust R8319 to vertically" 1.192 PIC (12,52,R/W) "center the" 1.192 PIC (13,32,R/W) "Trace on the screen." 1.193 5500 * S 1.194 PIC 3320A33 (14,8,R/W) "<- Measure the voltage at X3391" 1.194 PIC (14,40,R/W) "with the oscilloscope" 1.194 PIC (15,18,R/W) "(DC-coupled, external trigger)." 1.194 PIC (12,22,R/W) "<- Note the location of R8319" 1.195 DISP Position the intensified "line" on the trace on the 1.195 DISP measuring oscilloscope in the center or the screen. 1.196 DISP Set HORIZONTAL TIME/DIV to 200us. 1.196 DISP Press softkey to select ch.A DC. 1.197 PIC 3320FIG6(10,5,BR/LW)"Adjust R8319 to center one of two" 1.197 PIC (11,5,BR/LW) "lines a or b vertically on the screen." 1.198 DISP Set HORIZONTAL TIME/DIV to 500us. 1.198 DISP Press softkey to select ch.A GROUND. 1.199 PIC 3320A33 (12,27,R/W) "<- Adjust R8339 to vertically" 1.199 PIC (12,57,R/W) "center the" 1.199 PIC (13,37,R/W) "Trace on the screen." 1.200 HEAD 9.3.7 GAIN AND CORRECTION STROKE IN P^2CCD-MODE: ch.B 1.201 DISP Connect the 5500A Scope Output to UUT Channel B. 1.202 DISP Press VERTICAL MODE. 1.202 DISP Press softkey to select B. 1.202 DISP Press VERTICAL COUPLING. 1.202 DISP Press softkey to select ch.B GROUND. 1.202 DISP Set HORIZONTAL TIME/DIV to 200us. 1.202 DISP Set VERTICAL SHIFT ch.B to center trace. 1.203 DISP Set HORIZONTAL TIME/DIV to 500us. 1.204 PIC 3320A33 (12,12,R/W) "<- Adjust R8359 to vertically" 1.204 PIC (12,42,R/W) "center the" 1.204 PIC (13,22,R/W) "Trace on the screen." 1.205 DISP Press softkey to select ch.B DC. 1.205 DISP Set VERTICAL AMPL/DIV ch.B to 500mV. 1.206 5500 2Vpp 1kH SI SC S 1.207 DISP Set VERTICAL SHIFT ch.B to center trace. 1.208 PIC 3320A33 (13,11,R/W) "<- Adjust R8362 for a vertical" 1.208 PIC (13,42,R/W) "deflection of 4.00+/-0.05 div." 1.208 PIC (12,12,R/W) "<- Adjust R8359 to keep trace vertically" 1.208 PIC (12,53,R/W) "centered on the screen." 1.209 DISP Set HORIZONTAL TIME/DIV to 200us. 1.210 PIC 3320A33 (8,12,R/W) "<- Measure the voltage at X3387 " 1.210 PIC (8,44,R/W) "with the oscilloscope." 1.210 PIC (13,15,R/W) "<- Note the location of R8382" 1.211 PIC 3320FIG5 (10,4,BR/LW) "Adjust R8382 so that the" 1.211 PIC (10,29,BR/LW) "squarewave amplitude" 1.211 PIC (11,4,BR/LW) "in the acquisition stroke is minimal." 1.212 DISP Press softkey to select ch.B GROUND. 1.212 DISP Set VERTICAL SHIFT ch.B to center trace. 1.212 DISP Set HORIZONTAL TIME/DIV to 500us. 1.213 PIC 3320A33 (12,12,R/W) "<- Adjust R8359 to vertically" 1.213 PIC (12,42,R/W) "center the" 1.213 PIC (13,22,R/W) "Trace on the screen." 1.214 5500 * S 1.215 PIC 3320A33 (14,8,R/W) "<- Measure the voltage at X3391 " 1.215 PIC (14,40,R/W) "with the oscilloscope (DC-coupled)." 1.215 PIC (12,12,R/W) "<- Note the location of R8359." 1.216 DISP Position the intensified "line" on the trace on the 1.216 DISP measuring oscilloscope in the center or the screen. 1.217 DISP Set HORIZONTAL TIME/DIV to 200us. 1.217 DISP Press softkey to select ch.B DC. 1.218 PIC 3320FIG6(10,4,BR/LW)"Adjust R8359 to center one of two" 1.218 PIC (11,4,BR/LW) "lines a or b vertically on the screen." 1.219 DISP Set HORIZONTAL TIME/DIV to 500us. 1.219 DISP Press softkey to select ch.B GROUND. 1.220 PIC 3320A33 (12,17,R/W) "<- Adjust R8379 to vertically " 1.220 PIC (12,47,R/W) "center the" 1.220 PIC (13,28,R/W) "Trace on the screen." 1.221 DISP Disconnect the oscilloscope from the UUT and 1.221 DISP reinstall the shielding plate on A33 (P^2CCD unit). 1.222 HEAD 9.3.7 GAIN 5V/div 1.223 DISP Connect the 5500A Scope Output to UUT Channel A and B 1.223 DISP using a BNC tee and equal length BNC cables. 1.224 5500 20Vpp 1kH SI SC S 1.225 DISP Press AUTO. 1.226 DISP Press softkey to select ch.A & ch.B DC. 1.227 PIC 3320A32 (8,45,R/W) "<- Adjust R5046 so that the ch.A" 1.227 PIC (9,51,R/W) "trace is 4.0+/-0.1 div." 1.228 PIC 3320A32 (8,34,R/W) "<- Adjust R5146 so that the ch.B" 1.228 PIC (9,40,R/W) "trace is 4.0+/-0.1 div." 1.229 5500 * S 1.230 DISP Disconnect the 5500A from the UUT. 1.231 HEAD 9.3.7 OFFSET SINGLE/DUAL CHANNEL 1.232 DISP Press AUTO. 1.233 DISP Set VERTICAL SHIFT ch.A to center trace. 1.234 DISP Press VERTICAL MODE. 1.234 DISP Press softkey to select B. 1.234 DISP Set VERTICAL SHIFT ch.B to center trace. 1.235 DISP Press softkey to select A and B. 1.236 PIC 3320A33 (4,32,R/W) "<- Adjust R7515 so that the ch.A" 1.236 PIC (4,65,R/W) "trace is" 1.236 PIC (5,35,R/W) "in the vertical mid of the screen." 1.237 PIC 3320A33 (4,18,R/W) "<- Adjust R7715 so that the ch.B" 1.237 PIC (4,51,R/W) "trace is" 1.237 PIC (5,21,R/W) "in the vertical mid of the screen." 1.238 HEAD 9.3.7 OFFSET DUAL/ADD 1.239 DISP Press softkey to select ADD. 1.240 PIC 3320A33(4,37,R/W)"<- Adjust R7612 so that the trace is" 1.240 PIC (5,40,R/W) "in the vertical mid of the screen." 1.241 HEAD 9.3.7 OFFSET & GAIN MIN/MAX & P^2CCD MODE: VERTICAL 2 1.242 DISP Press the top and bottom softkeys together at the same 1.242 DISP moment to switch-on the service menu. 1.242 DISP Press softkey CHECK&ADJ >. 1.242 DISP Press softkey VERTICAL >. 1.242 DISP Press softkey NEXT twice to select 1.242 DISP CHECK& ADJ VERTICAL 2. 1.243 DISP The instrument now switches between MIN/MAX mode on and 1.243 DISP MIN/MAX mode off. 1.243 DISP 1.243 DISP When MIN/MAX mode is off, two intensified traces are 1.243 DISP visible. The upper is ch.A and the lower is ch.B. 1.243 DISP 1.243 DISP When MIN/MAX mode is on, two low intensity traces are 1.243 DISP displayed for each channel (four total). 1.244 DISP If the adjustment for a channel is correct the two 1.244 DISP low intensity traces will appear superimposed and in the 1.244 DISP same position as the intensified trace for that channel. 1.244 DISP 1.244 DISP If the adjustment for a channel is incorrect, one or 1.244 DISP both of the low intensity traces will not be in the 1.244 DISP position as the intensified trace for that channel. 1.245 PIC 3320A33 (4,27,R/W) "<- Adjust R7583 &" 1.245 PIC (6,34,R/W) "<- R7566 so that the ch.A low intensity" 1.245 PIC (7,36,R/W) " traces are in the same position as the" 1.245 PIC (8,36,R/W) " ch.A intensified trace +/-0.1 div." 1.246 PIC 3320A33 (4,12,R/W) "<- Adjust R7783 &" 1.246 PIC (6,22,R/W) "<- R7766 so that the ch.B low intensity" 1.246 PIC (7,24,R/W) " traces are in the same position as the" 1.246 PIC (8,24,R/W) " ch.B intensified trace +/-0.1 div." 1.247 DISP Connect the 5500A Scope Output to UUT Channel A and B 1.247 DISP using a BNC tee and equal length BNC cables. 1.248 5500 1Vpp 1kH SI SC S 1.249 PIC 3320A33 (1,30,R/W) "<- Adjust R7606 to superimpose the" 1.249 PIC (1,65,R/W) "top levels" 1.249 PIC (2,40,R/W) "of the upper squareware +/-0.1 div." 1.250 PIC 3320A33 (2,36,R/W) "<- Adjust R7592 to superimpose the" 1.250 PIC (2,71,R/W) "bottom" 1.250 PIC (3,39,R/W) "levels of upper squareware +/-0.1 div." 1.251 PIC 3320A33 (1,18,R/W) "<- Adjust R7806 to superimpose the" 1.251 PIC (1,53,R/W) "top levels" 1.251 PIC (2,20,R/W) " of the lower squareware +/-0.1 div." 1.252 PIC 3320A33 (2,16,R/W) "<- Adjust R7792 to superimpose the" 1.252 PIC (2,51,R/W) "bottom" 1.252 PIC (3,18,R/W)" levels of the lower squareware +/-0.1 div." 1.253 5500 * S 1.254 HEAD 9.3.7 OFFSET AND GAIN DIRECT MODE: ch.A, VERTICAL 3 1.255 DISP Press softkey NEXT to select 1.255 DISP CHECK& ADJ VERTICAL 3. 1.256 PIC 3320A33 (5,27,R/W) "<- Position the traces upon each" 1.256 PIC (5,60,R/W) "other with R7584." 1.257 DISP Connect the 5500A Scope Output to UUT Channel A. 1.258 5500 1Vpp 1kH SI SC S 1.259 PIC 3320A33 (1,36,R/W) "<- Adjust R7603 to equal amplitudes" 1.259 PIC (2,38,R/W) " displayed on the screen." 1.260 5500 * S 1.261 HEAD 9.3.7 OFFSET AND GAIN DIRECT MODE: ch.B, VERTICAL 4 1.262 DISP Press softkey NEXT to select 1.262 DISP CHECK& ADJ VERTICAL 4. 1.263 PIC 3320A33 (5,12,R/W) "<- Position the traces upon each" 1.263 PIC (5,45,R/W) "other with R7784." 1.264 DISP Connect the 5500A Scope Output to UUT Channel B. 1.265 5500 1Vpp 1kH SI SC S 1.266 PIC 3320A33 (1,12,R/W) "<- Adjust R7803 to equal amplitudes" 1.266 PIC (2,14,R/W) " displayed on the screen." 1.267 5500 * S 1.268 DISP Disconnect the 5500A from the UUT. 1.269 HEAD 9.3.7 OFFSET VERTICAL AMPLIFIERS: VERTICAL 6 1.270 DISP Press softkey NEXT twice to select 1.270 DISP CHECK& ADJ VERTICAL 6. 1.271 PIC 3320A32 (17,51,R/W) "<- Adjust R5021 for minimal" 1.271 PIC (18,54,R/W) "jump on the upper trace." 1.272 PIC 3320A32 (17,40,R/W) "<- Adjust R5121 for minimal" 1.272 PIC (18,42,R/W) " jump on the lower trace." 1.273 HEAD 9.3.7 OFFSET VERTICAL AMPLIFIERS: VERTICAL 7 1.274 DISP Press softkey NEXT to select 1.274 DISP CHECK& ADJ VERTICAL 7. 1.275 PIC 3320A32 (16,51,R/W) "<- Adjust R5022 for minimal" 1.275 PIC (17,54,R/W) "jump on the upper trace." 1.276 PIC 3320A32 (16,40,R/W) "<- Adjust R5122 for minimal" 1.276 PIC (17,42,R/W) " jump on the lower trace." 1.277 HEAD 9.3.7 OFFSET VERTICAL AMPLIFIERS: VERTICAL 8 1.278 DISP Press softkey NEXT to select 1.278 DISP CHECK& ADJ VERTICAL 8. 1.279 PIC 3320A32 (15,51,R/W) "<- Adjust R5023 for minimal" 1.279 PIC (16,54,R/W) "jump on the upper trace." 1.280 PIC 3320A32 (15,40,R/W) "<- Adjust R5123 for minimal" 1.280 PIC (16,42,R/W) " jump on the lower trace." 1.281 HEAD 9.3.7 OFFSET VERTICAL AMPLIFIERS: VERTICAL 9 1.282 DISP Press softkey NEXT to select 1.282 DISP CHECK& ADJ VERTICAL 9. 1.283 PIC 3320A32 (14,51,R/W) "<- Adjust R5024 for minimal" 1.283 PIC (15,54,R/W) "jump on the upper trace." 1.284 PIC 3320A32 (14,40,R/W) "<- Adjust R5124 for minimal" 1.284 PIC (15,42,R/W) " jump on the lower trace." 1.285 DISP Press AUTO to leave the service menu. 1.286 HEAD 9.3.8 LF SQUARE-WAVE RESPONSE ATTENUATOR UNIT: ch.A 1.287 DISP Connect the 5500A Scope Output to UUT Channel A. 1.288 5500 30mVpp 200H SQ SC S 1.289 DISP Press AUTO. 1.290 DISP Press VERTICAL COUPLING. 1.290 DISP Press softkey to select ch.A DC. 1.290 DISP Set VERTICAL AMPL/DIV ch.A to 5mV. 1.290 DISP Set HORIZONTAL TIME/DIV to 500[230]s. 1.291 PIC 3320A35 (12,20,R/W) "<- Adjust R6850 on A27 for a" 1.291 PIC (12,49,R/W) "straight pulse" 1.291 PIC (13,23,R/W) "top with a deviation <=0.1 div." 1.292 DISP Set VERTICAL AMPL/DIV ch.A to 50mV. 1.293 5500 300mVpp 200H SQ SC S 1.294 PIC 3320A35 (13,22,R/W) "<- Adjust R6817 on A27 for a" 1.294 PIC (13,51,R/W) "straight pulse" 1.294 PIC (14,25,R/W) "top with a deviation <=0.1 div." 1.295 DISP Set VERTICAL AMPL/DIV ch.A to 500mV. 1.296 5500 3Vpp 200H SQ SC S 1.297 PIC 3320A35 (12,23,R/W) "_ Adjust R6802 on A27 for a" 1.297 PIC (12,51,R/W) "straight pulse" 1.297 PIC (13,24,R/W) " top with a deviation <=0.1 div." 1.298 5500 * S 1.299 HEAD 9.3.7 LF SQUARE-WAVE RESPONSE ATTENUATOR UNIT: ch.B 1.300 DISP Connect the 5500A Scope Output to UUT Channel B. 1.301 5500 30mVpp 200H SQ SC S 1.302 DISP Press AUTO. 1.303 DISP Press VERTICAL COUPLING. 1.303 DISP Press softkey to select ch.B DC. 1.303 DISP Set VERTICAL AMPL/DIV ch.B to 5mV. 1.303 DISP Set HORIZONTAL TIME/DIV to 500us. 1.304 PIC 3320A35 (12,12,R/W) "<- Adjust R6850 on A29 for a" 1.304 PIC (12,41,R/W) "straight pulse" 1.304 PIC (13,15,R/W) "top with a deviation <=0.1 div." 1.305 DISP Set VERTICAL AMPL/DIV ch.B to 50mV. 1.306 5500 300mVpp 200H SQ SC S 1.307 PIC 3320A35 (13,14,R/W) "<- Adjust R6817 on A29 for a" 1.307 PIC (13,43,R/W) "straight pulse" 1.307 PIC (14,16,R/W) " top with a deviation <=0.1 div." 1.308 DISP Set VERTICAL AMPL/DIV ch.B to 500mV. 1.309 5500 3Vpp 200H SQ SC S 1.310 PIC 3320A35 (12,14,R/W) "_ Adjust R6802 on A29 for a" 1.310 PIC (12,42,R/W) "straight pulse" 1.310 PIC (13,15,R/W) " top with a deviation <=0.1 div." 1.311 5500 * S 1.312 HEAD 9.3.8 HF SQUARE-WAVE RESPONSE: ch.A 1.313 DISP Connect the 5500A Scope Output to UUT Channel A. 1.314 5500 100mVpp 1MH ED SC S L 1.315 DISP Press AUTO. 1.316 DISP Press VERTICAL COUPLING. 1.316 DISP Press softkey to select ch.A DC. 1.316 DISP Press softkey to select ch.A 50 Ohm. 1.316 DISP Set VERTICAL AMPL/DIV ch.A to 20mV. 1.316 DISP Set HORIZONTAL TIME/DIV to 10ns. 1.316 DISP Press TRIGGER DELAY. 1.316 DISP Press softkey UP or DOWN to select - 2DIV 1.316 DISP (2 div pretrigger). 1.317 PIC 3320A33 (4,29,R/BL) "<- " 1.317 PIC (4,32,BR/BL) "Note the locations of R7512 & R7513" 1.318 PIC 3320FIG7 (2,37,BR/LC) "Adjust R7512 & R7513 so that" 1.318 PIC (2,66,BR/LC) "overshoot +" 1.318 PIC (3,37,BR/LC) "ringing does not exceed +/-6% during the" 1.318 PIC (4,37,BR/LC) "first 10ns of the pulse." 1.319 5500 * S 1.320 HEAD 9.3.7 HF SQUARE-WAVE RESPONSE: ch.B 1.321 DISP Connect the 5500A Scope Output to UUT Channel B. 1.322 5500 100mVpp 1MH ED SC S L 1.323 DISP Press AUTO. 1.324 DISP Press VERTICAL COUPLING. 1.324 DISP Press softkey to select ch.B to DC. 1.324 DISP Press softkey to select ch.B to 50 Ohm. 1.324 DISP Set VERTICAL AMPL/DIV ch.B to 20mV. 1.324 DISP Set HORIZONTAL TIME/DIV to 10ns. 1.325 PIC 3320A33 (4,14,R/BL) "<- " 1.325 PIC (4,17,BR/BL) "Note the locations of R7712 & R7713" 1.326 PIC 3320FIG7 (2,37,BR/LC) "Adjust R7712 & R7713 so that" 1.326 PIC (2,66,BR/LC) "overshoot +" 1.326 PIC (3,37,BR/LC) "ringing does not exceed +/-6% during the" 1.326 PIC (4,37,BR/LC) "first 10ns of the pulse." 1.327 DISP Press TRIGGER DELAY. 1.327 DISP Press softkey UP to select + 0DIV. 1.328 DISP Disconnect the 5500A from the UUT. 1.329 HEAD 9.3.9 DELTA-T 1.330 DISP Press DOTS. 1.331 DISP Connect the 5500A Scope Output to UUT Channel A. 1.332 5500 600mVpp 50MH LS SC S L 1.333 DISP Press AUTO. 1.334 DISP Set VERTICAL AMPL/DIV ch.A to 100mV. 1.334 DISP Set HORIZONTAL TIME/DIV to 5ns. 1.335 PIC 3320A34(16,27,R/W)"<- Adjust R8607 so that a continuous" 1.335 PIC (17,29,R/W) " smooth sine-wave signal is displayed." 1.336 DISP Press WRITE. 1.337 DISP Verify that the displayed sine-wave stayed without 1.337 DISP discontinuities. 1.338 5500 * S 1.339 DISP Disconnect the 5500A from the UUT. 1.340 DISP Press softkeys to select ch.A & ch.B 1M Ohm. 1.341 HEAD 9.3.10 AC/DC BALANCE EXT TRIG INPUT: TRIGGER 0 1.342 DISP Connect the 5500A Scope Output to UUT Channel A and 1.342 DISP EXT TRIG using a BNC tee. 1.343 5500 600mVpp 100H SI SC S 1.344 DISP Press the top and bottom softkeys together at the same 1.344 DISP moment to switch-on the service menu. 1.344 DISP Press softkey CHECK&ADJ >. 1.344 DISP Press softkey TRIGGER > to select. 1.344 DISP CHECK& ADJ TRIGGER 0. 1.345 PIC 3320A32 (20,34,R/W) "Adjust R7022 so that the trigger" 1.345 PIC (21,42,R/W) "point shift is <=0.1 div." 1.346 5500 * S 1.347 HEAD 9.3.10 AC/DC BAL INT TRIGGERING VIA A & B: TRIGGER 1 1.348 DISP Press softkey NEXT to select 1.348 DISP CHECK& ADJ TRIGGER 1. 1.349 DISP Connect the 5500A Scope Output to UUT Channel A and B 1.349 DISP using a BNC tee and equal length BNC cables. 1.350 5500 600mVpp 100H SI SC S 1.351 PIC 3320A32 (18,46,R/W) " Adjust R5030 so that the trigger" 1.351 PIC (19,46,R/W) " point shift is <=0.1 div." 1.352 HEAD 9.3.10 AC/DC BAL INT TRIGGERING VIA A & B: TRIGGER 2 1.353 DISP Press softkey NEXT to select 1.353 DISP CHECK& ADJ TRIGGER 2. 1.354 PIC 3320A32 (18,35,R/W) " Adjust R5130 so that the trigger" 1.354 PIC (19,35,R/W) " point shift is <=0.1 div." 1.355 HEAD 9.3.10 HF REJ BALANCE: TRIGGER 3 1.356 DISP Press softkey NEXT to select 1.356 DISP CHECK& ADJ TRIGGER 3. 1.357 PIC 3320A32(20,21,R/W)"<- Adjust R7019 so that the trigger" 1.357 PIC (21,23,R/W) " point shift is <=0.1 div." 1.358 5500 * S 1.359 HEAD 9.3.10 AUTO TRIGGERING: TRIGGER 4 1.360 DISP Press softkey NEXT to select 1.360 DISP CHECK& ADJ TRIGGER 4. 1.361 DISP Connect the 5500A Scope Output to UUT Channel A. 1.362 5500 120mVpp 100H SI SC S 1.363 PIC 3320A1 (15,15,R/W) "_ Adjust R2533 to vertically center" 1.363 PIC (16,15,R/W) " the trace on the screen." 1.364 PIC 3320A32 (20,17,R/W) " Set R7046 fully CCW." 1.365 PIC 3320A32(15,21,R/W)"<- Adjust R7084 so that the trigger" 1.365 PIC (15,57,R/W) "gap lies exactly in" 1.365 PIC (16,23,R/W) " the mid between the top and bottom level" 1.365 PIC (16,65,R/W) "of the signal." 1.366 5500 5mVpp 100H SI SC S 1.367 PIC 3320A32 (13,20,R/W) "<- Adjust R7156 for a correctly" 1.367 PIC (13,52,R/W) "triggered display." 1.368 5500 120mVpp 100H SI SC S 1.369 OPBR Does the trigger point lie in the mid between the top 1.370 OPBR and the bottom level of the signal +/-0.1 div? 1.371 JMPF 1.364 1.372 HEAD 9.3.10 LEVEL SENSITIVITY: TRIGGER 4 1.373 5500 5mVpp 100H SI SC S 1.374 PIC 3320A32 (20,16,R/W) "_ Adjust R7046 so that the signal" 1.374 PIC (20,50,R/W) "is just triggered." 1.375 HEAD 9.3.10 AUTO/DC BALANCE: TRIGGER 5 1.376 DISP Press softkey NEXT to select 1.376 DISP CHECK& ADJ TRIGGER 5. 1.377 5500 600mVpp 100H SI SC S 1.378 PIC 3320A32 (20,24,R/W) "_ Adjust R7036 so that the trigger" 1.378 PIC (20,59,R/W) "point" 1.378 PIC (21,46,R/W) "shift is <=0.1 div." 1.379 HEAD 9.3.10 DUAL TRIGGERING: TRIGGER 6 1.380 DISP Press softkey NEXT to select 1.380 DISP CHECK& ADJ TRIGGER 6. 1.381 MESS Adjust the frequency so that the trigger slope flashes 1.381 MESS between positive and negative triggering. 1.382 5500 100H 600mVpp SI SC N 1.383 MESS 1.384 PIC 3320A32 (15,13,R/W) "<- Adjust R7116 so that the gap" 1.384 PIC (15,44,R/W) " between" 1.384 PIC (16,15,R/W) " positive and negative slope is minimal." 1.385 DISP Adjust R7129 so that the 1.385 DISP vertical symmetry between positive and negative slope 1.385 DISP is in the vertical mid of the screen is [241]0.1 div. 1.385 DISP ADV for a picture of the adjustment location. 1.386 PIC 3320A32 (15,15,R/W) "<- Adjust R7129 so the vertical" 1.386 PIC (15,46,R/W) " symmetry between positive and" 1.386 PIC (16,17,R/W) " negative slope in the vertical mid of" 1.386 PIC (16,56,R/W) "screen is +/-0.1 div." 1.387 5500 * S 1.388 HEAD 9.3.10 EVENTS/CLOCK +/- SLOPE BALANCE 1.389 DISP Connect the 5500A Scope Output to UUT Channel A and 1.389 DISP EVENTS using a BNC tee and equal length BNC cables. 1.390 5500 50mVpp 100H SI SC S 1.391 DISP Press AUTO. 1.392 DISP Set VERTICAL AMPL/DIV ch.A to 20mV. 1.392 DISP Set HORIZONTAL TIME/DIV to 1ms. 1.392 DISP Set TRIGGER COUPLING to DC. 1.392 DISP Set TRIGGER LEVEL to 0V. 1.392 DISP Set TRIGGER DELAY to EVNT+DELAY. 1.393 PIC 3320A32 (3,22,R/W) " Toggle TRIGGER SLOPE between" 1.393 PIC (3,51,R/W) " POSITIVE and NEGATIVE while" 1.393 PIC (4,20,R/W) "<- adjusting R7159 for minimal trigger gap" 1.393 PIC (4,63,R/W) "and R7158 for" 1.393 PIC (5,22,R/W) " maximal trigger symmetry (around" 1.393 PIC (5,56,R/W) "vertical mid of screen)." 1.394 DISP Verify that the max deviation is +/-0.1 div? 1.395 5500 * S 1.396 DISP Disconnect the 5500A from the UUT. 1.397 HEAD 9.3.4 COMPENSATION OF CRT TOLERANCES: DISPLAY 3 1.398 DISP Press the top and bottom softkeys togather at the same 1.398 DISP moment to switch-on the service menu. 1.398 DISP Press softkey CHECK&ADJ >. 1.398 DISP Press softkey DISPLAY >. 1.398 DISP Press NEXT three times to select 1.398 DISP CHECK& ADJ DISPLAY 3. 1.399 PIC 3320A1 (15,15,R/W) "<- Adjust R2533 so the trace is " 1.399 PIC (16,15,R/W) " centered vertically on the " 1.399 PIC (17,15,R/W) " screen [241]0.1 div. " 1.400 DISP Press AUTO to leave the service menu. 1.401 HEAD 9.3.10 LF SQUARE-WAVE RESPONSE EXT AND EVENTS 1.402 DISP Connect the 5500A Scope Output to UUT EXT TRIG. 1.403 PIC 3320A32 (22,43,R/W) "Connect the probe of the measuring" 1.403 PIC (23,43,R/W) "oscilloscope to pin 1 of A40." 1.404 DISP Set the measuring scope to 100mV/div and 10us/div. 1.405 5500 3Vpp 10kH SI SC S 1.406 DISP Press TRIGGER SOURCE. 1.406 DISP Press softkey to select EXT. 1.407 PIC 3320A31(13,17,R/W)"<- Adjust R4751 for a straight pulse" 1.407 PIC (14,19,R/W) " top on the measuring oscilloscope." 1.408 5500 30Vpp 10kH SI SC S 1.409 DISP Press softkey to select EXT:10. 1.410 PIC 3320A31(13,19,R/W)"<- Adjust R4753 for a straight pulse" 1.410 PIC (14,21,R/W) " top on the measuring oscilloscope." 1.411 5500 * S 1.412 DISP Connect the 5500A Scope Output to UUT EVENTS/EXT CLOCK. 1.413 PIC 3320A32 (7,21,R/W) " Connect the probe of the measuring" 1.413 PIC (8,21,R/W) " oscilloscope to pin 1 of A43." 1.414 5500 3Vpp 10kH SI SC S 1.415 PIC 3320A31(13,31,R/W)"<- Adjust R4851 for a straight pulse" 1.415 PIC (14,33,R/W) " top on the measuring oscilloscope." 1.416 5500 * S 1.417 DISP Disconnect the 5500A and oscilloscope from the UUT. 1.418 HEAD 9.3.5 P^2CCD PRE-ADJUSTMENT 1.419 DISP Remove the shielding plate from A33 (P^2CCD unit). 1.420 DISP Connect the 5500A Scope Output to UUT Channel A and B 1.420 DISP using a BNC tee and equal length BNC cables. 1.421 5500 600mVpp 1kH TI SC S 1.422 DISP Press AUTO. 1.423 DISP Set VERTICAL AMPL/DIV ch.A & ch.B to 100mV. 1.424 HEAD 9.3.5 LEVEL OF THRESHOLD GATE: ch.A 1.425 PIC 3320A33(16,40,R/W)"Connect the 8842A INPUT HI to pin 10" 1.425 PIC (17,40,R/W) "on A46 and INPUT LO to chassis ground." 1.425 PIC (22,35,R/W) "<- Note the location of R7953" 1.426 MESS Adjust R7953 for 6.0+/-0.1V. 1.427 8842 6V S 2W 1.428 MATH MEM1 = MEM1 - 6 1.429 JMPZ 1.431 0.1U 1.430 JMP 1.425 1.431 HEAD 9.3.5 LEVEL OF TRESHOLD GATE: ch.B 1.432 PIC 3320A33(16,40,R/W)"Connect the 8842A INPUT HI to pin 10" 1.432 PIC (17,40,R/W) "on A47 and INPUT LO to chassis ground." 1.432 PIC (22,17,R/W) "<- Note the location of R8153" 1.433 MESS Adjust R8153 for 6.0+/-0.1V. 1.434 8842 6V S 2W 1.435 MATH MEM1 = MEM1 - 6 1.436 JMPZ 1.438 0.1U 1.437 JMP 1.432 1.438 HEAD 9.3.5 DC LEVEL OF SIGNAL GATE: ch.A 1.439 PIC 3320A33(16,40,R/W)"Connect the 8842A INPUT HI to pin 6" 1.439 PIC (17,40,R/W) "on A46 and INPUT LO to chassis ground." 1.439 PIC (22,29,R/W) "<- Note the location of R7959" 1.440 MESS Adjust R7959 for 5.5+/-0.1V. 1.441 8842 5.5V S 2W 1.442 MATH MEM1 = MEM1 - 5.5 1.443 JMPZ 1.445 0.1U 1.444 JMP 1.439 1.445 HEAD 9.3.5 DC LEVEL OF SIGNAL GATE: ch.B 1.446 PIC 3320A33(16,40,R/W)"Connect the 8842A INPUT HI to pin 6" 1.446 PIC (17,40,R/W) "on A47 and INPUT LO to chassis ground." 1.446 PIC (22,11,R/W) "<- Note the location of R8159" 1.447 MESS Adjust R8159 for 5.5+/-0.1V. 1.448 8842 5.5V S 2W 1.449 MATH MEM1 = MEM1 - 5.5 1.450 JMPZ 1.452 0.1U 1.451 JMP 1.446 1.452 8842 * S 1.453 DISP Disconnect the 8842A from the UUT. 1.454 HEAD 9.3.5 BIAS CHARGE: ch.A 1.455 PIC 3320A26 (8,49,R/W) "Connect the external trigger" 1.455 PIC (9,49,R/W) "input of the measuring" 1.455 PIC (10,49,R/W) "oscilloscope to X2631." 1.456 PIC 3320A33 (14,23,R/W) "<- Measure the voltage at X3382" 1.456 PIC (14,55,R/W) "with the oscilloscope" 1.456 PIC (15,34,R/W) "(AC-coupled, external trigger)." 1.456 PIC (21,38,R/W) "<- Note the location of R7939" 1.457 PIC 3320FIG4(10,5,BR/LW)"Adjust R7939 to that the distance" 1.457 PIC (10,39,BR/LW) "between level a and b" 1.457 PIC (11,5,BR/LW) "during the correction stroke shown above" 1.457 PIC (11,46,BR/LW) "is 400+/-20mV." 1.458 HEAD 9.3.5 BIAS CHARGE: ch.B 1.459 PIC 3320A33 (14,14,R/W) "<- Measure the voltage at X3384" 1.459 PIC (14,46,R/W) "with the oscilloscope" 1.459 PIC (15,26,R/W) "(AC-coupled, external trigger)." 1.459 PIC (21,27,R/W) "<- Note the location of R8139" 1.460 PIC 3320FIG4(10,5,BR/LW)"Adjust R8139 to that the distance" 1.460 PIC (10,39,BR/LW) "between level a and b" 1.460 PIC (11,5,BR/LW) "during the correction stroke shown above" 1.460 PIC (11,46,BR/LW) "is 400+/-20mV." 1.461 HEAD 9.3.5 P^2CCD OUTPUT CIRCUITS 1.462 PIC 3320A33 (14,40,R/W) "Set R8362, R8382, R8322, & R8342" 1.462 PIC (15,40,R/W) "in their mid position." 1.463 PIC 3320A33 (14,8,R/W) "<- Measure the voltage at X3391" 1.463 PIC (14,40,R/W) "with the oscilloscope" 1.463 PIC (15,20,R/W) "(DC-coupled, external trigger)." 1.463 PIC (10,2,R/W) "Note the locations of " 1.463 PIC (10,24,R/W) "R8359, R8379, R8319, & R8339" 1.464 PIC 3320FIG4 (10,5,BR/LW) "Adjusting R8359, R8379, R8319," 1.464 PIC (10,36,BR/LW) "& R8339 each influences" 1.464 PIC (11,5,BR/LW) "a level during the correction stroke." 1.464 PIC (11,43,BR/LW) "Adjust these four" 1.464 PIC (12,5,BR/LW) "levels to 0V with these potentiometers." 1.465 5500 * S 1.466 HEAD CONCLUSION OF THE PROCEDURE. 1.467 DISP Disconnect all leads from the calibration system first 1.467 DISP and then from the UUT. 1.467 DISP Switch off the UUT and disconnect it from line power. 1.467 DISP NOTE: When reinstalling the top and bottom covers, take 1.467 DISP care that the wiring (coaxial cables and flat cables) is 1.467 DISP not damaged. 1.468 END