Adjustment Procedure— 2213 Service
NOTE
The following adjustm ent is only applicable to
instalm ents having the Current Lim it board (A 19).
d.
ADJUST— Head Room Voltage Adjust (R952) for
+ 4 .3 V if your instrument contains the Current Limit board.
Adjust for 43 V if your instrument contains the
Preregulator board.
e. Disconnect the voltmeter leads.
f.
Connect the digital voltmeter low lead to chassis
ground (TP501) and connect the volts lead to the —8.6 V
supply (TP500).
g.
CHECK— Reading is —8.64 V to —8.56 V. If the
reading is within these limits, skip to part i.
h. ADJUST—The -8 .6 V Adj (R946) for -8 .6 V.
i.
Re-install the High-Voltage shield (see the ‘ High-
Voltage Shield" reinstallation procedure in Section 6) or the
protective shield , depending on your instrument.
j.
CHECK—Voltage levels of the remaining power
supplies listed in Table 5-2 are within their specified limits.
Table 5-2
POWER SUPPLY LIMITS AND RIPPLE
Power
Supply
Test
Point
Reading
(Volts)
P-P Ripple
(mV)
-8 .6 V
TP500
-8 .5 6 to -8 .6 4
< 10
+ 5 V
W985
4.75 to 5.25
< 10
+ 8.6 V
W975
8.34 to 8.86
< 10
+ 3 0 V
W965
28.5 to 31.5
< 5 0
+ 100 V
W966
95 to 105
<200
k.
Connect the test oscilloscope, using a l x probe, to
the first test point indicated in Table 5-2 and connect the -
probe ground lead to TP501.
l
. CHECK— Ripple amplitude of the dc supply is within
the typical value given in Table 5-2.
m. Repeat parts k and I for each test point in Table 5-2.
n. Disconnect the test setup.
2. C h ec k H ig h -V o ltag e Supply
a. Set the POWER switch to OFF (button out).
b.
Set the dc voltmeter to a range of at least —2500 V
dc and connect the volts lead to chassis ground. Remove
the crt base-socket cover and connect the common lead of
the dc voltmeter to pin 2 on the socket.
c. Set the POWER switch to ON (button in).
d.
CHECK— High Voltage Supply dc level is —1900 V to
-2 1 0 0 V.
e. Set the POWER switch to OFF (button out).
f. Disconnect the voltmeter leads and re-install the crt
base-socket cover.
g. Set the POWER switch to ON (button in).
3. A d ju st C R T G rid B ias (R 860)
a. Set the A SEC/DIV switch to X-Y.
b.
Rotate
the
AUTO
INTENSITY
control
fully
counterclockwise.
c.
Connect a 50
U
termination to the EXT Z AXIS INPUT
connector located on the rear panel.
d.
ADJUST— Both the Grid Bias adjustment (R860) and
the AUTO FOCUS control for a visible dot. Then back off
the Grid Bias potentiometer until the dot just disappears.
e. Disconnect the test setup.
4. A d ju st A stigm atism a n d A u to Focus Tracking
(R 8 87 a n d R 875)
a. Set:
Channel 1 AC-GND-DC
DC
A SEC/DIV
20
iiS
A TRIGGER MODE
AUTO
REV NOV 1982
5-5
Содержание 2213
Страница 1: ...Ttektronix 2213 OSCILLOSCOPE SERVICE IN S T R U C T IO N M A N U A L ...
Страница 9: ...2213 Service 3827 01 viii The 2213 Oscilloscope ...
Страница 30: ...Theory of Operation 2213 Service 3 3 Figure 3 1 Basic block diagram of the 2213 Oscilloscope ...
Страница 67: ...Adjustment Procedure 2213 Service 5 2 ...
Страница 139: ...Figure 9 4 2213 block diagram S105 ...
Страница 140: ...a o m 7 x C O o z CHANNEL SWITCH AND VERTICAL OUTPUT ...
Страница 141: ...2213 Service ...
Страница 144: ...2213 ...
Страница 146: ...2213 3827 20 R V FB 4982 C 4 ...
Страница 147: ...S90I 4 5 ...
Страница 148: ...CIRCUIT BOARD INTERCONNECTIONS K tv ra n m CIRCUIT BO ARD IN T E R C O N N E C T IO N S ...
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Страница 153: ...2213 3 K T i RtV D E C ...
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Страница 155: ...2213 Service 1 3 a 7 ...
Страница 161: ...2213 Service n 3 a ...
Страница 168: ...s RE 2213 ...
Страница 169: ... CH 1 CH 2 VERTICAL PREAMPS ...
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Страница 177: ...TRIGGER ...
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Страница 181: ...f E V AUG I98Z SWEEP GENERATOR LOGIC ...
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Страница 190: ...i _____H M N XY AMPLIFIER HORIZ OUTPUT ...
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Страница 203: ...2 2 1 3 Service R887 ASTIG R870 GEOM C784 5ns TIMING R860 GRID BIAS ...
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