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Performance Check—455/A2/B2
18. 50 MHz IN TER N A L TRIGGERING
a. Set:
HORIZ DISPLAY
A
A and B SOURCE
NORM
b. Set generator frequency to 50 MHz and
adjust output amplitude fo r 1.5 division display.
c. CHECK—Stable display can be obtained in both +
and — positions of A SLOPE switch fo r these modes:
A SOURCE
A COUPLING
d. CHECK—No stable display can be obtained w ith A
COUPLING switch in HF REJ position.
e. Set HORIZ DISPLAY to B D LY 'D .
f. CHECK—Stable display can be obtained in both +
and — positions of B SLOPE switch fo r these modes:
B SOURCE
B COUPLING
NORM
AC, LF REJ, DC
CH 1
DC
CH 2
DC
g. CHECK—No stable display can be obtained with B
COUPLING in HF REJ position.
L
Z AXIS INPUT
a. Set:
A and B TIME/DIV
10
fis
HORIZ DISPLAY
A
A and B COUPLING
AC
A SOURCE
EXT
CH 1 VOLTS/DIV
.1 V
b. Set generator frequency to 50 kHz and adjust o utput
amplitude for 5 division display.
c. Disconnect 50
SI
cable and term ination from dual
input cable connected to CH 1 and CH 2 inputs and
connect to EXT Z AX IS connector at rear o f instrument.
d. CHECK—Trace modulation is noticeable at normal
intensity. (Adjust A LEVEL control as required to
obtain stable display).
20. TRIGGER LEVEL RANGES
a. Remove cable from Z AX IS INPUT connector and
connect (w ithout 50
SI
termination) to dual-input cable
at vertical module.
b. Set:
A and B SLOPE
OUT: +
CH 1 V O LT S /D IV
1 V
A and B SOURCE
EXT
c. Set generator output to 50 kHz and adjust amplitude
for 4 division display.
d. CHECK—Display is triggered along positive-going
slope o f waveform as A LEVEL control is rotated and
is not triggered (free-runs) at either extreme o f A LEVEL
rotation.
e. Set A SLOPE to IN: - .
f. CHECK—Display is triggered along negative-going
slope of waveform as A LEVEL control is rotated and is
not triggered at either extreme of A LEVE L rotation.
g. Set HORIZ DISPLAY to B D LY 'D .
h. CHECK—Display is triggered along positive-going
slope of waveform as B LEVEL control is rotated and is
not triggered (not visible) at either extreme o f B LEVEL
rotation.
i. Set B SLOPE to IN: - .
REV FEB 1983
3-9
Содержание 455
Страница 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 ...
Страница 9: ......
Страница 13: ...455 A2 B2 x 455 A2 B2 Portable Oscilloscope ...
Страница 60: ...Circuit Description 455 A2 B2 Fig 4 3 Attenuator and gain switching sequences 4 8 REV A OCT 1975 ...
Страница 61: ...Circuit Description 455 A2 B2 Fig 4 4 Channel switching gates REV A OCT 1975 4 9 ...
Страница 66: ...Fig 4 6 Sweep generator 1C Function block diagram Circuit Description 455 A2 B2 ...
Страница 80: ...Maintenance 455 A2 B2 BOTTOM FRAME Fig 5 7 VO LTS DIV switch disassembly 5 8 REV A OCT 1975 ...
Страница 90: ...Maintenance 455 A2 B2 Fig 5 13 Troubleshooting chart 5 18 REV A O CT 1975 ...
Страница 91: ...Maintenance 455 A2 B2 1907 1 A Fig 5 13 Troubleshooting chart cont REV A OCT 1975 5 19 ...
Страница 120: ...Instrument Options 455 A2 B2 o j a O Option 5 Page 12 REV B APR 1977 P A R T IA L A 1 0 T R I E R B O A R D ...
Страница 132: ...Instrument Options 455 A2 B2 Option 7 Page 8 REV E AUG 1979 D C TO AC I NVERTER ...
Страница 164: ...455 A2 B2 LARGE 5 INTEGRATED CIRCUITS Fig 9 1 Semiconductor lead identification REV C MAY 1978 ...
Страница 166: ...l 07 7 REV b NOV C M1 4 5 5 MAIN MODULE BLOCK DIAGRAM ...
Страница 167: ...4 5 5 A 2 B 2 AS VERTICAL MODULE IR07 R8 RE V B M O ...
Страница 168: ...I S 0 7 9 8 R E V B NOV IRT7 A2 VERTICAL MODULE BLOCK DIAGRAM ...
Страница 169: ...REV B NOV 1977 Fig 9 2 A1 Partial Interface board compo ...
Страница 170: ...455 A2 B2 Sea Parts List for serial number ranges tial Interface board component locations ...
Страница 173: ...v I m B 2 HORIZONTAL MODULE BLOCK DIAGRAM ...
Страница 174: ...455 A2 B2 REV B NOV 1977 Fig 9 3 A 1 Partial Interface board component locations ...
Страница 182: ...455 A2 B2 Fig 9 4 A20 Vertical board component locations SN B0110 ...
Страница 185: ...455 A2 S2 4 5 5 M A fN M O DULE ...
Страница 187: ...455 A2 B2 Fig 9 5 A20 Vertical board component location SN B010100 B REV C NOV 1977 ...
Страница 191: ...V O L T S 01 ...
Страница 192: ...V O LT S Q IV S H O W N IN 57 H V ...
Страница 198: ... U 1 X SlCjMAt TO P2 A4 h o p it MODULE SEE PARTS LIST FOR SEMICONDUCTOR TYPES f SWITCHING ...
Страница 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 ...
Страница 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 ...
Страница 212: ...455 A2 B2 0 0 V 2 _______________ 20 mV 50C 1 n5 i d 5 30 m j _ 500 1 n J 1 0 3 V 0 V 3 0 V 1907 117 ...
Страница 213: ......
Страница 214: ......
Страница 216: ...A B T IM IN G S W IT C H INTERFACE C O N N E C T O R ...
Страница 223: ... ...
Страница 224: ...455 A 2 B 2 ...
Страница 225: ... 455 A2 B2 ...
Страница 226: ......
Страница 233: ......
Страница 234: ...455 A2 B2 ...