Tektronix 492 - Page 255

Theory of Operation—492/492P Service Vol. 1 (SN B030000 & up)
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
Y10
TIME/DIV
MIN RF ATTEN
< X1 >< X2 >< X3 >< X4 >< X5 >< X6 >< X7 >< X8 >
20 /js
00
50 ms
0A
EXT
TRIG
14
INT
TRIG
1E
READOUT
28
OdB
32
S
P
A
N 3C
R
E
F 46
n
L
SINGLE
FREE GRAT
E
50 μ β
.1 s
SWEEP FUN ILLUM 10 dB
\/
V
E
01
0B
15
1 F 29
33
( s 3D
L 47
B-SAVE
SAVE
FUTURE
J-χ
.1 ms
.2 s
A
A
USE
20 dB
c
02 OC
16
20 2A
34 3E
48
2 dB/
MAX
.2 ms
.5 s
DIV
UN
HOLD
30 dB
03
0D
17
21
2B
35
’ 3F
' 49
BASE
VIEW
NARROW
LINE
.5 ms
1 s
B
FILTER
CLIP 40 dB
04
0E
18 22
2C
36
40
n
E
10 dB/
WIDE
S
1 ms 2 s
DIV FILTER AF
50 dB 0
L
SWITCH NAM
05
OF 19
23
2D
37
U 41
OR POSITION
VIEW
I
0
T ~
2 ms
5 s DEGAUSS
A CAL 60 dB
N
LIN
06
10
1A 24
2E
38
B 42
\Λ /
^r·
21
MIN
PHASE
AUTO
" Γ
HEX CODE
5 ms AUTO
NOISE
LOCK
RES
07
11
1B
25
2F 43
PULSE
RESET
FREQ
FREQ
STETCH-
TO
10 ms
MNL RANGE
RANGE
ER
LOCAL
08
12 1C 26 30
44
EXT
LINE
20 ms
EXT FINE IDENTIFY MIXER
TRIG
09
13 1D
27
31 45
Fig. 5-39. Switch matrix codes.
5-92
REV AUG 1981