HP 5245L - Page 243

A25
OVEN
CONTROL
ASjY
(sz+sr-esr)
_ _
c5
4.7
UF
OV
EMIT
FOL
Q2
1853-OOOI
,-DETECTOR
-.
cR2
cr
4.7
UF
c2
4.7UF
Rto
150
+
20v
-l
DRIVER I
-"b;"
!
r850-0092 I I
A24 CRYSTAL
OVEN ASSY
A25
OVEN CONTR(
--GRN--
r-
l-
BLK
ti
c7
].7uF
ASSY
(o5z4s-6013)
(sERlEs
sl6)
AMPL
Q3
2N652A
REFERENCE
DESIGNATIONS WITHIN
OVEN
CONTROL ASSY ARE ABBREVIATED;
TO
FORM
COMPLETE DESIGNATION, ADD
ASSEMBLY
DESIGNATION
A25 AS
PREFIX
TO
INDICATED
DESIGNATION
-l
-tv
J.i
32VAC
FROM
TI
426
OSCILLATOR ASSYR6
6.8
cR4
OVEN
HEATER
AMPL
ot
2Nil838
GROUND PLANE
SCALER SIG
l-".U.:
FROM
RI
is%Lrrl
PART
OF
44
----_BLU___r
!ffi__itr_:ffi
r
ovEN
HEATER
I
I
COARSE
FREO
ADJ
INSIDE
(-rx
to-s)
c2
t.5-7
'!8$;TJ
fi.].
cl4
.ot5uF
*ct9
l.otur
OV
(3)
l-"0,
,Et"u"
L4
I SOUH
c2s
.OIUF
rMc
I
Q7
I
OV
fio)
tMc
L5
ISOUH
-t5v
FROM
A7
(t3)
A35
+20v
FROM
A6
(8)
VET
st
ffi
Lffi
ffi
ffi
ffi
A5
A28
(3)
OV
(3) ct8
.ot5uF
ct7
.OIUF
-
-.
GROUND
PLANE
OV
ilo)
R36
a?o
R37
r80
OV
(3)
R28
9too
+20v
(DEC)
TRIG INPUT
AMPL
Q5
r 853
-
OOO9
"'l
l=
PIN
13
P|NS
il A 12
PIN
14
NOTES
I.] UNLESS
OTHERWISE
INDI(
RESISTANCE IN
OHMS,
CAPACITANCE IN PICO1
2.
426 IS CONNECTED TO TU
MAhI
SOCKET
DESIGNATIO
END
SOCKET
(OVEN)
DESIG
xA26-?.
3.
ASTERISK
(X)
INDICATES !
COMPONENT.
4, DC VOLTAGES
INDEPENDENT
(
OV
ilo)
Rt9
6200
)IUF
l
R2O
2700
R26
1500
c23
looD
R32
t800
R30
3600
r1.5v
t8.5V
c20
loo0
+20v
(
DEC)
cl6
.otuF
c26
4.7
UF
+
-ov
S
tMC
(3)
TC! t/^
427
il4)
il-e
PART
OF
DELETED:
A26C2t,??,27
A26CR3,4
R29
?700
R3l
390
REFERENCE
DESIGNATIONS
NO
PREFIX
PREFIX
A?4
PREFIX
A25
P
REFIX
A26
c?-4
cRl
J4
ol
ct
-
HRI
Rt-
RTI
YI
7
4
ct-7
cRt
-8
Qr
-4
Rt
-to
ct -27
cRt-
2
Lr
-
5
Qr
-7
Rr
-38
!_LoeE_l
06245-O-35ABCOE
Figure 7-2L,