Adjustment Procedure— 2236 Service
3. Adjust Magnifier Registration (R749)
a. Set the A SEC/DIV switch to 0.2 ms.
b.
Select 1-ms time markers from the time-mark
generator.
c.
Position the middle time marker to the center vertical
graticule line using the Horizontal POSITION control.
d. Set the X I0 Magnifier to Off (knob in).
e.
ADJUST— Mag Regis (R749) to position the middle
time marker to the center vertical graticule line.
f.
Set the X I0 Magnifier to On (knob out) and CHECK for
no horizontal shift in the time marker.
g.
Repeat parts c through f until no further improvement
is noted.
d.
CHECK— The 11th time marker can be positioned to
the left of the center vertical graticule line by rotating the
Horizontal POSITION control fully counterclockwise.
e.
Select
50-
ms
time markers from the time-mark
generator.
f.
Align the 3rd time marker with the center vertical grati
cule line using the Horizontal POSITION control.
g. Set the X I0 Magnifier to On (knob out).
h.
CHECK— Magnified time marker can be positioned to
the left of the center vertical graticule line by rotating the
Horizontal POSITION control fully counterclockwise.
i.
CHECK— Start of the sweep can be positioned to the
right of the center vertical graticule line by rotating the Hori
zontal POSITION control fully clockwise.
4. Check Sweep Length
a. Set:
6. Check Variable Range
a. Set:
Channel 1 Input Coupling
GND
X I0 Magnifier
Off (knob in)
b.
Position the start of the sweep at the first vertical grat
icule line using the Horizontal POSITION control.
c.
CHECK— End of the sweep is to the right of the 11th
vertical graticule line.
Horizontal POSITION
A SEC/DIV
SEC/DIV Variable
X I0 Magnifier
Midrange
0.2 ms
Fully counterclockwise
Off (knob in)
b.
Select 0.5-ms time markers from the time-mark
generator.
c. CHECK—Time markers are 1 division or less apart.
5. Check Position Range
a. Set:
Channel 1 Input Coupling
DC
A SEC/DIV
10
ms
b.
Select
10-
ms
time markers from the time-mark
generator.
c.
CHECK— Start of the sweep can be positioned to the
right of the center vertical graticule line by rotating the Hori
zontal POSITION control fully clockwise.
7. Adjust High-Speed Timing (C703 and C713)
a. Set:
A SEC/DIV
0.1
ms
SEC/DIV Variable
CAL detent
b. Select 0.1-
ms
time markers from the time-mark
generator.
c. ADJUST— A High Speed Timing (C703) for 1 time
marker per division over the center 8 divisions.
5-16
Summary of Contents for 2236
Page 10: ...2236 Service viii The 2236 Oscilloscope ...
Page 74: ...Theory of Operation 2236 Service 3 30 ...
Page 102: ...Performance Check Procedure 2236 Service 4 21 Figure 4 1 Test setup for DMM common mode check ...
Page 242: ...2236 Service 4204 34 Figure 9 6 CTM basic block diagram ...
Page 243: ...DMM POWER S U P P LIE S 2236 Service F ig u re 9 7 C T M d e ta ile d b lo c k diag ram ...
Page 254: ...S I 0 O I 5 1 S O i 4204 21 C IR C U IT BOARD INTERCONNECTIONS ...
Page 267: ...1 2 3 4 5 6 7 8 9 J T K L M_ _ ___ N___l _ P____l S ...
Page 271: ...1 2 3 4 5 6 7 8 9 lO P2SO O U1 A TRIGGER V T O W2500 5 A 223 R E V A P R W G ...
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Page 285: ...A 6 F IL T E R B O A R D lo c a te d u n d e r H V S h ie ld ...
Page 313: ...2236 Service T O U I 3 0 0 4 8 K T O UI300 II S K 0 2 2 3 6 Z Z O A Z 2 OPTION IA ...
Page 317: ...A 10 C O U N T E R T IM E R M U L T IM E T E R B O A R D A D J U S T M E N T LO C A T IO N S ...
Page 319: ...2236 Service TROUBLESHOOTING GUIDE 4206 99 4204 69A ...
Page 323: ...9 ...
Page 324: ...2 REV APR 1986 ...
Page 325: ...2236 SERVICE ...
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Page 333: ...2236 SERVICE ...
Page 334: ...2 4 2 1 ...
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