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HP 5383A Operating And Service Manual page 49

Frequency counter. serial prefix: 1508a; 1516a

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π
Υι9
R 19
ΙΟΟΟ
1T~578+RS
23-i
'ED
(-5V)
3
C19
C16
σοισ ~ .ΟοΙιι ~ . οοΙυ
U II
CLK Α
V ARIABLE ISO
JWH
TIME BASE
IN
COUNTER
L
OG
RESET C
Β
Α
RESET
D
η
U IOA
CLK
4
ΡΙΟ
Ρ Ι 2
ΙΟΟΟ
00
U12
QUAD- LATCH
οσ
CL R
10
CP
9 .10
OD
UI6
QUAD-LATCH
CP
ΙΟ
C
LR
to
P
L CP
U13
B
CD DOWN COUNTER
σσωΝ
CP
80R
CLR
4
Α
Q
η
0
τ
B
CD TO
5
D
ECADE
4
2" CONVERTER
2
2~
U14
Ι
6
MAIN GATE LATCH O U T PU T
ΤΡΑ
M
G (TTL MAIN GATE)
TAB LΕ ρ
GA
.- ΤΙΜΕ
ΟΒ
(APPROX)
U
ZOB
4-Ι- 16
β80
ΥΙ
+5V
Ί 5
CLR
4
U2
1
1B
-i-
6
5
Ι
~ H IS DE FEAT
C27
~ . ΟΟΙυ
R40
Ι 200
all . ,t6
DRIVE
ΤΡ3
Ρ 42
51
α
4
RS
.
.0
28
01U
R38
62
-5V
4
/ $ Ρ36
180D
5V
SCHMIΠ TRIGGER INPU
50 mV
0.1 υsθε
50 mV
-0 B V
7F3 .TIM EB ASE OSCIL LATOR+10
TIMEBASE OUT P
ηΙΟ
F39
20
2
2 1
-0 .7 ν
Γ
Ι
L
β21
62
SCHMITT TRIGGER OUTPUT
w
w
Ι
ΜΑΙΝ GATE LATCHES
αβ
R Ιτ
U19C
ΙΟΟΟ
ω
-07V
Ι
Ι
Ι
(SEE TABLE
A)
Α
Ί
~
~
$ec
L LL
L
ONG
J LEAD
τφ
f
,
Ι
1
104, Ι Ι οl~
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.d,
ο
Ι
Ι
. 1
STROBE
Ι
/+5 ν
U
22
R SC
Μ
Ρ 6
υ 21
U17
CP
PRE
~5Υ
ω
ΤΡS, Ι
~ ~OUTPUT~
Α
,
Β
C
ρ
6
ιΑπ 1
2
Τ
6 .8ν
ΦPL IF IER
5
V
R33
3300
R
ΙΟΟΟ (BALANCE ADJUST)
R
ΑΙ
ΜΑΙΝ
B
OA R D
Α $$ Ε ΜΒΙΥ
(05383ΒΟο01) ΝΟΤΕ Ι
S
EHIE S 1508A,ISI6A
3
Ι
5
Ι
Ι~
Ογ
=
ra~ιιι~.~ρ~
Ι
ς
P
RE
12
0 RSTB
a'
ι
L
ATH
U23B
ΙΙ
CLK
Ο
Ι 2
C L R
13
55
12 U20D
L
EAD ZERO
BLANK I NG
C IRCUITS
4
- IDS DEFEAT
PRE
S U20C
_
5
10
8
$ .
0
RI
Q
L
ATCH
U23A
CLK
Φ
6
Ι 5
Γ οεεεατ -
G
2 MHz MAIN GATE
LATCH CLOCK
i
o
v
~
Ι
-0.7V
POWΕ F
Ι
SUPPLY
OUTPUT

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