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Adjustment Procedure— 2215A Service
POWER SUPPLY AND CRT DISPLAY
Equipment Required (See Table 4-1):
Leveled Sine-Wave Generator (Item 2)
Digital Voltmeter (Item 10)
Time-Mark Generator (Item 3)
DC Voltmeter (Item 12)
50-0 BNC Cable (Item 4)
Screwdriver (Item 13)
50-0 BNC Termination (Item 5)
See
ADJUSTMENT LOCATIONS
S I
a t the back o f this m anual fo r location o f test p o in ts and adjustm ents.
INITIAL CONTROL SETTINGS
Vertical
POSITION (both)
Midrange
VERTICAL MODE
CH 1
CH 1 VOLTS/DIV
10 mV
CH 1 VOLTS/DIV Variable
CAL detent
Channel 1 Input Coupling
GND
srizontal
POSITION
Midrange
HORIZONTAL MODE
A
A SEC/DIV
X-Y
SEC/DIV Variable
CAL detent
X I0 Magnifier
Off (knob in)
TRIGGER
VAR HOLDOFF
NORM
Mode
P-P AUTO
SLOPE
OUT
LEVEL
Midrange
A&B INT
VERT MODE
A SOURCE
INT
PROCEDURE STEPS
1. Check/Adjust Power Supply DC Levels (R938)
a. Connect the digital voltmeter low lead to chassis
ground and connect the volts lead to the -8 .6 -V supply
(TP961).
b. CHECK— Voltmeter reading is —8.56 to -8 .6 4 V. If
the reading is within these limits, skip to part d.
c. ADJUST— The —8.6 V Adj potentiometer (R938) for a
voltmeter reading of -8 .6 0 V.
d. CHECK— Voltage levels of the remaining power sup
plies listed in Table 5-2 are within the specified limits.
Table 5-2
Power Supply Limits
Power
Test
Reading
Supply
Point
(Volts)
- 8 .6 V
TP961
-8 .5 6 to -8 .6 4
+ 5.2 V
W968
+ 5.04 to +5.36
+ 8.6 V
W960
+ 8.43 to +8.77
+ 30 V
W956
+29.1 to +30.9
+ 100 V
W954
+ 97.0 to +103.0
NOTE
R eview the inform ation a t the beginning o f the A d ju st
m ent Procedure before starting this step.
5-4
e. Disconnect the test equipment from the instrument.
Summary of Contents for 2215A
Page 1: ......
Page 9: ...2215A Service 4735 01 vi The 2215A Oscilloscope ...
Page 138: ...2215A Service 4735 04 Figure 9 4 Basic block diagram ...
Page 139: ......
Page 145: ...CIRCUIT BCARD N TER CONNECTIONS 2 2 1 5 A 4755 20 ...
Page 153: ...2215A S e rv ic e D UJ o C D GO CO in 10 CJ Figure 9 8 Circuit view of A1 Main board ...
Page 157: ...1 p 2 m 3 p 4 p 5 P 6 p 7 p 8 p 9 A T B Z 2 I5 A ...
Page 158: ...H T J t K t L t M T N T p t S 4 7JS Z2 ...
Page 168: ...I 2 3 4 5 6 7 8 9 B H K L M N 2 2 I 5 A 473S Z ...
Page 173: ...I 2 to 3 to 4 to 5 to 6 7 to 8 to 9 2 215A B TIMING ALTERNATE B SWEEP S ...
Page 176: ......
Page 181: ...I 2 3 4 5 6 7 8 9 AXIS CRT ...
Page 189: ...2215A Service 4735 11 ...
Page 193: ...3 ...
Page 194: ...2215A SERVICE ...
Page 195: ...4 7 5 ...
Page 200: ......
Page 202: ...2215A SERVICE ...
Page 205: ...000 2775 00D ...