d.
Adjust X-Y L I 346 (Sweep board) for a closed
lissajous figure.
Calibration—4 8 5 /R 4 8 5 Service
e. Switch Type 191 to next lower range, adjust X-Y
R1348 (Sweep board) for closed lissajous figure.
f. Recheck d and e as they may interact.
g.
Switch to 20 MHz lim it, compromise phasing adjust
ments between full and 20 MHz lim it for less than 0.2 div
opening with 7 div of signal.
83. CHECK X -Y B A N D W ID TH
a. Ground CH 1, apply 10 div of 50 kHz to CH 2.
b. Check for at least 4 MHz bandwidth at —3 dB point.
84. CHECK B A N D W ID TH L IM IT
a. Set VERT MODE to CH 1 and apply 6 div of 50 kHz.
b. Hold BANDWIDTH pushbutton in.
c. Check for 17 to 23 MHz bandwidth at —3 dB point.
5-24
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Содержание 485
Страница 3: ...485 R485 rviice T h 5 0 Oscil oscope ...
Страница 32: ...Maintenance 485 R 485 Service 4 4 Fig 4 1 Electrode configuration for semiconductors in this instrument ...
Страница 74: ...Rackmounting 485 R485 Service 6 6 ...
Страница 128: ...485 R485 Service MAR 1979 5 m V B A L ADJ ...
Страница 134: ... See Parts List for Fig 8 5 A 7 Partial Vertical am plifier board serial num ber ranges R E V D S E P T 1974 ...
Страница 137: ...Fig 8 6 A 7 Partial Vertical am plifier board See Pgrts Ljsf for serial number ranges f R E V B S E P T 1974 ...
Страница 145: ...Fig 8 9 A l l Partial Horizontal amplifier board REV E AUG 1975 See Parts List for serial number ranges ...
Страница 152: ... 0 iT s i ...
Страница 153: ...W H I T C X Y I6 J ROM Q S X J I 4 8 5 O S C U L O C O P E II93 4S REV D A J l 57fe HORIZONTAL A M P L IF IE R U ...
Страница 159: ...OSCILLOSCOPE 3 0 0 0 V TE ST P O IN T M AR K E D 2 9 5 0 V IN SOME INSTRUMENTS R EV e M AR 19 70 7 93 52 MRS ...
Страница 164: ...2S2 n eKn s e s 5 4 85 Os c illo sc o p e REV F A U S 1 9 7 7 I 1 9 3 5B POWER SUPPLY 773 ...
Страница 168: ... O I P 4 c N ifl 0 t 4 8 5 O S C I L L O S C O P E 2 d2 2 m u J tP Z O u u r 7 OJO d U O Hi 0u o o J ...
Страница 178: ......
Страница 179: ...485 R485 OSCILLOSCOPE REV D MAR 1977 ...
Страница 184: ...REV C MAR 1976 485 R485 OSCILLOSCOPE ...
Страница 197: ......