Adjustment Procedure— 2236 Service
CTM
Equipm ent Required (see Table 4-1):
Pulse Generator (Item 4)
Resistor (Item 17)
Dc and Ohms Calibrator (Item 5)
Resistor (Item 18)
Ac Calibration System (Item 6)
Resistor (Item 19)
WWV Receiver (Item 7)
Two Adapters (Item 20)
50-0 BNC Cable (Item 8)
Normalizer (Item 21)
50-0 Termination (Item 9)
Screwdriver (Item 25)
Adapter (Item 13)
Low-Capacitance Alignment Tool (Item 26)
Patch Cord (Item 14)
DMM Test Leads (provided with instrument)
Adapter (Item 15)
10X Probe (provided with instrument)
Adapter (Item 16)
See
ADJU S TM EN T LO C ATIO NS 1,
AD JU S TM EN T LO C ATIO NS 3.
and
a d j u s t m e n t l o c a t i o n s 4
at the back of the manual for test point and adjustment locations.
INITIAL CONTROL SETTINGS
PROCEDURE STEPS
Vertical
CH 1 POSITION
Midrange
VERTICAL MODE
CH 1
CH 1 VOLTS/DIV
0.5 V
CH 1 VOLTS/DIV Variable
CAL detent
Channel 1 Input Coupling
DCV
Horizontal
POSITION
Midrange
HORIZONTAL MODE
A
A SEC/DIV
0.5
ms
B SEC/DIV
0.05
ms
SEC/DIV Variable
CAL detent
X I0 Magnifier
Off (knob in)
B DELAY TIME POSITION
Fully counterclockwise
B TRIGGER
SLOPE
OUT
LEVEL
Midrange
A TRIGGER
VAR HOLDOFF
NORM
Mode
P-P AUTO
SLOPE
OUT
LEVEL
Midrange
A&B INT
VERT MODE
A SOURCE
INT
1. Adjust O scillator Frequency ( C l311 or TCXO
Adjustm ent)
a. Select the PER function.
b.
Connect the WWV 1-MHz source via a 50-0 cable to
the CH 1 OR X & DMM input connector.
c. If the instrument has the TCXO option, skip to part h.
d. ADJUST— Osc Cal (C1311) for a reading of 1.00000
ms
using the low-capacitance adjustment tool.
e. Select the FREQ function.
f. ADJUST— Osc Cal (Cl 311) for a reading between
999.9991 kHz and 999.9999 kHz.
g. Skip to Step 2 of this procedure.
h. ADJUST—Tcxo Cal located on U1304 for a reading of
1.00000
ms
using the low-capacitance alignment tool.
5-24
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 ...
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Page 324: ...2 REV APR 1986 ...
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