Adjustment Interactions - Tektronix 2246 1Y Service Manual

Adjustment Procedure—2246 1Y and 2246 Mod A Service
ADJUSTMENTS OR
REPLACEMENTS MADE
+ 7 .5 V ADJUST
GRID BIAS
ASTIGMATISM
TRACE ROTATION
GEOMETRY
Z -A X IS RESPONSE
READOUT JITTER
VERTICAL OUTPUT GAIN
READOUT VERTICAL CENTERING
CH 1 STEP BALANCE
CH 2 STEP BALANCE
CH 3 STEP BALANCE
CH 4 STEP BALANCE
CH 1 MF/LF GAIN S COMP
CH 1 INPUT CAPACITANCE
CH 1 INPUT COMP X10
CH 1 INPUT COMP XiOO
CH 1 GAIN
CH 2 MF/LF GAIN 8 COMP
CH 2 INPUT CAPACITANCE
CH 2 INPUT COMP X10
CH 2 INPUT COMP X100
CH 2 GAIN
CH 3 MF/LF COMP
CH 3 GAIN
CH 4 MF/LF COMP
CH 4 GAIN
OELAY-LINE HF COMP
CH 3 HF COMP
CH 4 HF COMP
HORIZONTAL X I GAIN (TIMING)
HORIZONTAL X10 GAIN (TIMING)
READOUT HORIZONTAL GAIN
MAG REGISTRATION
A 0 .5 us TIMING
B 0 .5 its TIMING
2 -5 ns TIMING
X GAIN
VOLTS CAL
B TRIGGER BANDWIDTH
MID-FREQUENCY FLATNESS
CRT REPLACEMENT
The use of Table 5-1 is particularly important if only
a partial procedure is done, or if a circuit requires
readjustment due to a component replacement. To
use this table, first find the adjustment that was
made (extreme left colum n). Then move to the
right, across the row, until you come to a darkened
5-2
Table 5-1

Adjustment Interactions

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table to find the affected adjustment at the heading
of that column. Check the accuracy of this adjust­
ment using the Performance Check Procedure in
Section 4. Then, if necessary, make a readjustment.
ADJUSTMENTS AFFECTED
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