Adjustments—455/A2/B2
f. INTERACTIO N—Due to interaction between R2782
and R2748, repeat steps b through e several times until
no further adjustment is necessary.
g. Set HORIZ DISPLAY to B D LY 'D .
h. Position start of sweep horizontally to graticule
center-line. Note—if this is not possible, adjust Mag
Reg, R2932 (see Fig. 6-6).
i. Set D ELAY TIM E POS control to 1.00.
j. ADJUST—Delay Start, R2782 (see Fig. 6-5), so that
second major time mark coincides with graticule center-
line.
k. Set D E LA Y TIM E POS control to 9.00 (do not read
just horizontal POSITION control).
l
. ADJUST—Delay Stop, R2748 (see Fig. 6-5), so that
10th major tim e mark coincides w ith graticule center-
line.
C2. HORIZO NTAL GAIN
a. Set HORIZ DISPLAY to A. Center display.
b. ADJUST—X I Gain, R2923 (see Fig. 6-6), fo r one
major time mark/division.
c. PA R TIAL ADJUSTMENT INTERACTIO N—When
making partial adjustment of X I Gain, also adjust .5
{is
and 5 ns timing.
d. Set X10 MAG pushbutton in (on).
e. Set time generator fo r .1 ms markers.
f. ADJUST—X I 0 Gain, R2925 (see Fig. 6-6), fo r 1
time mark/division.
C3. M AG NIFIER REGISTRATION
a. Position first time mark to graticule centerline.
b. Set X10 MAG pushbutton out (off).
c. ADJUST—Mag Reg. R2932 (see Fig. 6-6), so that
first time mark coincides w ith graticule centerline.
m. IN TER AC TIO N -D ue to interaction between R2782
d. INTERACTIO N—Repeat steps a through c until no
and R2748, repeat steps i through I several times until
trace shift exists while switching X I 0 MAG pushbutton
no further adjustment is necessary.
o ff and on.
Fig. 6-6A. Horizontal and Trigger adjustment locations
Fig. 6-6B. Horizontal and Trigger adjustment locations
SN B044420 and up.
below SN B044420.
REV D AUG 1980
6-11
Summary of Contents for 455
Page 1: ...Tektronix 455 A2 B2 PORTABLE OSCILLOSCOPE WITH OPTIONS I N S T R U C T I O N M A N U A L ...
Page 9: ......
Page 13: ...455 A2 B2 x 455 A2 B2 Portable Oscilloscope ...
Page 61: ...Circuit Description 455 A2 B2 Fig 4 4 Channel switching gates REV A OCT 1975 4 9 ...
Page 66: ...Fig 4 6 Sweep generator 1C Function block diagram Circuit Description 455 A2 B2 ...
Page 80: ...Maintenance 455 A2 B2 BOTTOM FRAME Fig 5 7 VO LTS DIV switch disassembly 5 8 REV A OCT 1975 ...
Page 90: ...Maintenance 455 A2 B2 Fig 5 13 Troubleshooting chart 5 18 REV A O CT 1975 ...
Page 91: ...Maintenance 455 A2 B2 1907 1 A Fig 5 13 Troubleshooting chart cont REV A OCT 1975 5 19 ...
Page 132: ...Instrument Options 455 A2 B2 Option 7 Page 8 REV E AUG 1979 D C TO AC I NVERTER ...
Page 166: ...l 07 7 REV b NOV C M1 4 5 5 MAIN MODULE BLOCK DIAGRAM ...
Page 167: ...4 5 5 A 2 B 2 AS VERTICAL MODULE IR07 R8 RE V B M O ...
Page 168: ...I S 0 7 9 8 R E V B NOV IRT7 A2 VERTICAL MODULE BLOCK DIAGRAM ...
Page 169: ...REV B NOV 1977 Fig 9 2 A1 Partial Interface board compo ...
Page 170: ...455 A2 B2 Sea Parts List for serial number ranges tial Interface board component locations ...
Page 173: ...v I m B 2 HORIZONTAL MODULE BLOCK DIAGRAM ...
Page 174: ...455 A2 B2 REV B NOV 1977 Fig 9 3 A 1 Partial Interface board component locations ...
Page 182: ...455 A2 B2 Fig 9 4 A20 Vertical board component locations SN B0110 ...
Page 185: ...455 A2 S2 4 5 5 M A fN M O DULE ...
Page 187: ...455 A2 B2 Fig 9 5 A20 Vertical board component location SN B010100 B REV C NOV 1977 ...
Page 191: ...V O L T S 01 ...
Page 192: ...V O LT S Q IV S H O W N IN 57 H V ...
Page 198: ... U 1 X SlCjMAt TO P2 A4 h o p it MODULE SEE PARTS LIST FOR SEMICONDUCTOR TYPES f SWITCHING ...
Page 207: ...A 1 4 B T I M I N G S W I T C H B O A R D A13 A TIM ING SWITCH BOARD 1 9 0 7 3 ...
Page 209: ...4 5 5 A 2 B 2 B 2 h o r iz o n t a l m o d u l e R o i I 11 R E V C NOV IS77 ...
Page 213: ......
Page 214: ......
Page 216: ...A B T IM IN G S W IT C H INTERFACE C O N N E C T O R ...
Page 223: ... ...
Page 224: ...455 A 2 B 2 ...
Page 225: ... 455 A2 B2 ...
Page 226: ......
Page 233: ......
Page 234: ...455 A2 B2 ...