Tektronix 2465B - Page 434

2465B/2467B Service
TEST WAVEFORM SETUP INFORMATION
1
B
A9—HIGH VOLTAGE
A13—CRT TERMINATION
iiii §
R1842 R1846
'"" I .
W190S
J901
is
R1864
liil!
R1857
R1858
H187Q
R1871
R1872
R1873
C1886
R187B
R1880
CR1894
en
00
CO
J904
II
i
1
Q1890
J902
en CO
» CO
ic a
R1893
R1892
<D^
UI890 /■!
C1950
€K^
t
C1932
k
r
R194t
H1948
R1945
R1944
11 II
CR1950
U19
S8 HI
C1971
R1972
R1973
CR1S90
01980
R1994
C1991
The numbered waveforms below were obtained at the test points indicated on the accompanying schematic diagram and
board dolly. The waveforms are representative of signals that may be expected at the associated points whenever the
instrument is running.
17.9V
0
8.5V
-3ms-
AMPLITUDE VARIES WITH
INTENSITY AND BETWEEN
INSTRUMENTS
OV
——| 16^8 \-—
0
-35.8V
®
Static Sensitive Devices
See Maintenance Section
COMPONENT NUMBER EXAMPLE
0
Figure 10-11. A9—246SB High Voltage board.
Assembly
Number
Component Number
A23A2R1234
I Schematic
-* ' —*- Circuit
Subassembly
Nmber
Number (it used)
Chassis-mounted components have no Assembly Number
prefix—see end of Replaceable Electrical Parts List
A9—HIGH VOLTAGE BOARD (2465B)
CIRCUIT
NUMBER
C91
C1812
C1813
C1814
C1815
C1870
C1885
C1886
C1888
C1889
C1890
C1891
C1912
C1915
C1932
C1950
C1951
C1971
C1972
C1973
C1980
C1990
C1991
SCHEM
NUMBER
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
CIRCUIT
NUMBER
CR1894
CR1895
CR1915
CR1930
CR1950
CR1953
CR1990
DS90
DS91
F1900
J901
J902
J903
J904
L1921
L1974
P191
P191
P191
SCHEM
NUMBER
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
6
8
12
CIRCUIT
NUMBER
Q1851
Q1852
Q1890
Q1980
Q1981
R1812
R1813
R1814
R1815
R1833
R1834
R1842
R1848
R1853
R1854
R1855
R1856
R1857
R1858
R1864
R1870
R1871
SCHEM
NUMBER
8
8
8
8
8
8
8
8
8
6
6
6
8
8
8
8
8
8
8
8
8
8
CIRCUIT
NUMBER
R1872
R1873
R1878
R1880
R1881
R1885
R1888
R1890
R1891
R1892
R1893
R1895
R1896
R1897
R1898
R1901
R1910
R1911
R1913
R1920
R1922
R1941
R1944
R1945
SCHEM
NUMBER
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
B
8
8
8
8
8
8
8
8
CIRCUIT
NUMBER
R1950
R1951
R1952
R1953
R1971
R1972
R1973
R1990
R1991
R1992
R1994
T1970
U1830
U1890
U1890
U1956
U1956
VR1891
W1909
SCHEM
NUMBER
8
8
8
8
8
8
8
8
8
8
8
8
8
8
12
8
12
8
12
93.5V
0
A13—CRT TERMINATION BOARD
CIRCUIT
NUMBER
J904
SCHEM
NUMBER
8
CIRCUIT
NUMBER
R1501
SCHEM
NUMBER
8
10V
OV
58V
s
0
B.BV
6N0
K K
K
2ms-
► 15V —
G
REV JAN 1989
WARM UP DELAY
H 8 MIN H
6019-21