HP 8690B User manual
t-
''·.
"
MANUAL
CHANGES
r-
MANUAL
IDENTIFICATION-
Model
Number:
8690B
Date
Printed:
May
1972
Part
Number:
08690-90018
This supplement contains important information for correcting manual errors and for adapting the manual
to
instruments containing improvements made after the printing of the manual. ·
To use this supplement:
Make all ERRATA corrections
Make
all
appropriate serial number related changes indicated in the tables below.
,....--Serial
Prefix
or
Number-;---
Make
Manual
Changes-
1114A 1, 2
1124A
1,
3
1143A02906 thru
1143A03055
1202A03056 thru
1202A04045
....
NEW
ITEM
ERRATA
Page
6-2, Table 6-1:
1,
2,4,
5
1,
3-6
r-
Serial
Prefix
or
Number--
Make
Manual
Changes-
1202A04046 thru
1202A04345
1,3-7
1202A04346 thru
1202A04585
1349A
1,3-8
1,3-9
Change A2C3
to
HP
Part No. 0160-2675
C:
FXD
MICA
3900
pF
1%300
VDCW,
Factory selected part.
....Change A2R8
to
HP
Part No. 2100-0672 R: VAR
COMP
2K
OHM
20% LIN 1/2W
A2R19
to
HP
Part
No.
2100-0674 R: VAR
COMP
20K
OHM
20%
LIN 1/2W
A2R22
to
HP
Part
No.
2100-0673 R:
VAR
COMP
5K
OHM
20% LIN 1/2W
A2R23 to
HP
Part No. 2100-0673 R: V
AR
COMP
5K
OHM
20% LIN 1/2W
A2R24
to
HP
Part No. 2100-0673 R: VAR
COMP
5K
OHM
20%
LIN 1/2W
A2R25 to
HP
Part No. 2100-0672 R: VAR
COMP
2K
OHM
20%
LIN 1/2W.
....
Page
6-3, Table 6-1:
Change A2R30
to
HP
Part
No.
2100-0673 R: V
AR
COMP
5K
OHM
20% LIN 1/2W
A2R31
to
HP
Part No. 2100-0673 R:
VAR
COMP
5K
OHM
20%
LIN 1/2W.
....
Page
6-4, Table 6-1:
Change A3R53
to
HP
Part No. 2100-0674 R:
VAR
COMP
20K
OHM
20% LIN 1/2W.
Page
6-11, Table 6-1:
Add A9MP1, MP2,
HP
Part No.1205-0011 Heat Sink.
....
Page
6-13, Table 6-1:
GbaJ;tge
A22R2 to
HP
Part No. 2100-0675 R: VAR
COMP
25K
OHM
20% LIN 1/2W
Change A11R8
to
HP
Part No. 2100-0675 R: VAR
COMP
25K
OHM
10%
LIN
1/2W.
NOTE
Manual
change
supplements
are
revised
as
often
as
necessary
to
keep
manuals
as
current
and
accurate
as
possible.
Hewlett-Packard
recommends
that
you
periodically
request
the
latest
edition
of
this
supplement.
Free
copies
are
available
from
all
HP
offices.
When
requesting
copies
quote
the
manual
identification
information
from
your
supplement,
or
the
model
number
and
print
date
from
the
title
page
of
the
manual.
10 June 1974
11 Pages
Printed
in
U.S.A.
HEWLETT
PACKARD
Model8690B
08690-90018
ERRATA
(Cont'd)
Page 6-15, Table 6-1:
Change
B1
to
HP
Part No. 3160-0056 recommended replacement.
Change
C1
and
C2
to
HP Part No. 0160-0669 C: FXD Mylar 2
mf
±
10%2000
VDCW.
Page
6-16, Table 6-1:
Change
F1
to
HP Part No. 2100-0420 FUSE 0.032A 250V.
Page 6-18, Table 6-1:
Add the following.
A3
HP
Part No. 08690-60066 Replacement Kit Reciprocal Amplifier Board Assembly
A4
HP
Part No. 08690-60063 Replacement Kit Helix Amplifier Board Assembly
A5
HP
Part No. 08690-60065 Replacement
Kit
Low Voltage Power Supply Board Assembly
A6
HP
Part No. 08690-60064 Replacement Kit Regulator Board Assembly
AS
HP
Part No. 08690-60071 Replacement Kit High Voltage Power Supply Board Assembly
(not
pretested)
A9
HP
Part No. 08690-60061 Replacement Kit Rectifier Board Assembly
(not
pretested)
AlO
HP
Part No.
08690-6005~
Replacement Kit Sweep Generator Board Assembly
A12 HP Part No. 08690-60062 Replacement Kit ALC Amplifier Board Assembly
Page 7-5, Figure 7-3:
Change
Fl
to
0.032A
Change the A3 Assembly Resistor Reference Designations to read R30-34, 40-45, 47-80.
Change the circuitry
of
A3Q1
as
shown in the attached drawing:
R48
75K
R47*
1620
R79
R80
51.
lK
!OK
C40
0.1
G
Ql
1855-0062
P/0
Figure
7-3.
Frequency Control Section Reciprocal
Amplifier
HEWLETT~
PACKARD
2
Model 8690B 08690-90018
ERRATA
(cont'd)
Page 7-14 and 7-16, Component Identification, Assembly A9:
Substitute the attached A9 Component Identification board for that shown
in
thl' 8690B Manual.
SHIELDED
Component Identification, Assembly A9
Page 7-15, Figure 7-8:
Change the wire color code
of
the wire between XA14 piri 6 and A9CR2, from @
to(D.
The wire color code
of
the
wire
at
T2 pin 13, 26 V
AC
winding,
is
@ .
HEWLETT~
PACKARD
3
Model8690B
CHANGE1
Page 5-17, Table 5-4, Power Supply Adjustment:
Change the power supply adjustment sequence as indicated below:
Old Adjustment Sequence
New
Adjustment Sequence
a,
b,
c,
d,
e, f, g,
h,
i.
a,
b,
c, f,
g,
h,
i,
d,
e
Page 6-4, Table 6-1:
Add diodes A3CR56, A3CR57 and A3CR58,
HP
Part No. 1901-0033 DIODE: SILICON 100
rnA
180
WV.
Page
6-6, Table 6-1:
Add diode A4CR11,
HP
Part No. 1902-3400 DIODE: BREAKDOWN 7S.7V 2%400
mW.
Change resistorsA10R17/A10R1S to
HPPartNo.
069S-3136 R: FXD 17.8K
1%
1/SW.
Page
6-10, Table 6-1:
Change
AS
Assy
to
HP Part No. OS690-60053.
Add A8Q2 HP Part No. 18S4-0073 THYRISTOR, SCR.
Add Resistor
ASRi5
HP
Part No. 0757-1000 R: FXD MET
FLM
51.1
OHM
1%
1/2W.
Add Resistor ASR16
HP
Part No. 0757-0280 R: FXD
MET
FLM
1.0K
OHM
1%
1/SW.
Change Capacitor A8C6
to
HP
Part No. 0180-0183
C:
FXD ELECT
10
UF +75
-10%50
VDCW.
Change A8Q1
to
HP
Part No. 1S55-0010 UNIJUNCTION: SILICON.
Change Resistor A8R13 to
HP
Part No. 069S-4348
R:
FXD
MET
FLM 4.99M
OHM
1%
1/2W.
Change Resistor ASR14 to
HP
Part No. 0698-3444 R: FXD MET FLM 316
OHM
1%
1/8W.
Page 6-11, Table 6-1:
08690-90018
· Change Transistors A10Q3 and A10Q4
to
HP
Part No. 1853-0020 TRANSISTOR: PNP SILICON (Recommended replace-
ment for 1850-0062).
Pages 6-12, and 6-13, Table 6-1:
Add diode A11CR19
HP
Part No. 1901-0033 DIODE: SILICON 100
rnA
180
WV.
Change Transistors
Al1Q2,
A,l1Q3, A11Q4, A11Q6, A11Q7,
AllQS
and A11Q11
to
HP Part No. 1S53-0020
TRANSIS-
TOR:
PNP
SILICON (Recommended replacement for 1850-0062). ·
Page
6-16, Table 6-1:
Add chassis mounted diodesCR6.and CR7
HP
Part No. 1901-0033 DIODE: SILICON 100 MA 180
WV.
Change chassis mounted Fuse F3 to
HP
Part No. 2110-0002 FUSE: 2A, 250V.
Change chassis mounted Fuse F4 to
HP
Part No. 2110-0036 FUSE: SA 125V.
Page
6-17, Table 6-1:
Add chassis mounted resistor R26
HP
Part No. OS12-0019 R: FXD
WW
0.33
OHM
5%
3W.
Add chassis mounted resistor R27
HP
Part No. OS12-0020 R: FXD
WW
0.39
OHM
5%
3W.
Page 7-3/7-4, Figure 7-2:
Change A10Q3 and AlO
Q4
to
HP
Part No. 1S53-0020 (Recommended replacement for 1850-0062).
Change value
of
resistors A10R17IA10R18
to
17.SK ohms.
Page 7-5, Figure 7-3:
Add diode A3CR56. (Connect anode
to
source
of
A3Q2A and cathode
to
emitter
of
A3Q3.)
Add diode A3CR57. (Connect anode to source
of
A3Q2B and cathode to emitter
of
A3Q4.)
Add diode A3CR58. (Connect anode
to
base of A3Q5 and cathode
to
emitter of A3Q5.)
Change the A3 column
of
REFERENCE DESIGNATIONS Table
to
include diodes A3CR56, A3CR57 and A3CR58.
Substitute the attached Component Identification Assembly
A3
board photo (Figure 5) for the photo shown in the manual.
4
$ t
Model 8690B 08690-90018
CHANGE 1 (cont'd)
',
Pages 7-9/7-10, Figure 7-5:
Substitute the attached
AS
Assy board photo (Figure 3) for the photo shown in the manual.
Add 78.7V breakdown diode A4CR11.
(eonnect
anode
to
ground and cathode
to
A4R34, A4C8 junction.)
Change the A4 column
of
REFERENCE DESIGNATIONS Table
to
include diode A4CR11.
Pages 7-11/7-12, Figure 7-6:
Change Transistors
Al1Q2,
A11Q3, A11Q4,
Al1Q6,
A11Q7,
AllQS
and
AllQll
to
HP Part Number 1S53-0020.
(Recor~
mended replacement for 1850-0062).
Add diode A11CR19. (Connect anode
to
base
of
AllQll
and cathode
to
emitter
of
AllQll.)
Add chassis mounted diode CR6. (Connect anode
to
center conductor
of
MARKER
output
jack and cathode
to
ground.)
Add chassis mounted diode CR7. (Connect anode
to
center conductor
of
BLANKING
output
jack and cathode
to
ground.)
Change
All
column
of
REFERENCE DESIGNATIONS Table
to
include diode A11CR19.
Change chassis mounted component column (no heading)
of
REFERENCE DESIGNATIONS Table to include diodes
CRQ
and CR7.
Page 7-14:
Substitute the attached
AS
Assy, ComponentIdentification board photo (Figure 1) for the photo shown in
the
S690B Manual.
CHANGE2
Pages 6-14 and 6-15, Table 6-1:
Change A14 Heater Supply Assy
to
HP
Part Number 08690-60054 (New board).
Add the following A14 Assy Components (Parts list for new A14 Assy).
C1
0160-3534
C:
FXD MICA 510 PF
5%
100
VDCW.
C3
01S0-0089
C:
FXD ELECT 10 UF
-10%
+100% 150
VDCW.
C4 0160-3539
C:
FXD MICA 820 PF
5%
100
VDCW.
C5
0180-0141
C:
FXD ELECT 50 UF +75
-10%50
VDCW.
C6
0160-2205
C:
FXD MICA 120 PF
5%.
C7
01S0-0094
C:
FXD ELECT 100
UF
25
VDCW.
CR1 1902-0041 DIODE, BREAKDOWN: 5.11V
5%
400
mW.
CR2 1901-0025 DIODE, SILICON 100 MA/1V.
CR3 1901-0025 DIODE, SILICON 100 MA/1V
CR4 1901-0025 DIODE; SILICON 100 mA/1
V.
IC1 1820-0196 IC: VOLTAGE REGULATOR.
IC2 1S20-0196 IC: VOLTAGE REGULATOR.
IC3 1S20-0196 IC: VOLTAGE REGULATOR.
Q1
1854-0062 TRANSISTOR: SILICON
NPN.
R1 0757-041S R: FXD MET FLM 619
OHM
1%
1/SW.
R2 0757-0440
R:
FXD
MET
FLM 7.5K
OHM
1%
1/8W.
R3 0757-043S
R:
FXD MET FLM 5.11K
OHM
1%
1/SW.
R4 0757-0461 R: FXD MET FLM 68.1K
OHM
1%
1/SW.
R5 0757-0473 R: FXD MET FLM 221K
OHM
1%
1/SW.
R6 0757-0401 R: FXD MET FLM 100
OHM
1%
1/SW.
R7 0757-0416 R: FXD
MET
FLM 511
OHM
1%
1/SW.
RS 069S-3156
R:
FXD MET FLM 14.7K
OHM
1%
1/SW.
R9 0757-0447 R: FXD MET FLM 16.2K
OHM
1%
1/8W.
R10 2100-1759
R:
VAR
WW
2K
OHM
10% LIN 1/2W.
Rll
0757-0441 R: FXD
MET
FLM S.25K
OHM
1%
1/8W.
R12 0757-0199 R: FXD
MET
FLM 21.5K
OHM
1%
1/8W.
R13 0698-3154 R: FXD MET FLM 4.22K
OHM
1%
1/8W.
R14 0757-0416 R: FXD
MET
FLM 511
OHM
1%
1/8W.
R15 0757-0280 R: FXD MET FLM l.OK
OHM
1%
1/8W.
R16 0757-0289 R: FXD
MET
FLM 13.3K
OHM
1%
1/8W.
R17 0698-3152
R:
FXD MET FLM 3.48K
OHM
1%
1/SW.
HEWLETT~
PACKARD
5
~
(i} .tlt
Model8690B 08690-90018
CHANGE
2.
(cont'd)
R18 2100-1758 R: VAR
WW
1K
OHM
10%
LIN 1/2W.
R19 0757-0440 R: FXD
MET
FLM
7.5K
OHM
1%
1/8W.
Page 7-14/7-15, Component Identification photo and Figure 7-8:
Substitute the attached A14
Assy
board photo and schematic (Figures 2 and 3) for those shown in the 8690B Manual.
CHANGE 3
Page
6-8, Table 6-1:
Add 9 pin tube socket for A5V1 (HP Part No. 1200-0062).
Page
6-10, Table 6-1:
Change capacitor A8C6
to
HP
Part No. 0180-2268
Change resistor A8R13
to
HP
Part
No.
0757-0868
Change resistor A8R16
to
HP
Part
No.
0757-0422
C:
F 140 UF 30
WVDC.
R: F 562K
OHM
1%
1/2W.
R: F 909
OHM
1%
1/8W.
Page 6-12, Table 6-1:
Add 7 pin tube socket for A10
Vl
(HP Part No. 1200-0053).
CHANGE4
Page
6-18, Table 6-1, under MISCELLANEOUS:
Add the following note
to
define the 8690B color scheme.
NOTE
This change implements a different color scheme for the standard instrument. Colors prior
to this change are now available as options. Refer to listing below.
8690B STANDARD. Indicates color scheme for the 8690B beginning with this change. (Includes
MINT
GRAY front
panel and OLIVE GRAY cabinet.)
8690B Option A85. Indicates combination color scheme for the 8690B. (Includes LIGHT GRAY front panel and
OLIVE GRAY cabinet.)
8690B Option X95. Indicates color scheme for the 8690B prior to this change. (Includes LIGHT GRAY front panel and
BLUE GRAY cabinet.)
Ad<l.
the following 8690B parts or description changes.
08690-4105 CORNER GLIDE (LIGHT GRAY)
#08690-40002
CORNER GLIDE
(MINT
GRAY) (STANDARD (COLOR)
08690-6041 ASSY: FRONTPANEL(LIGHTGRAY)
# 08690-60055 ASSY: FRONT PANEL (MINT GRAY) (STANDARD COLOR)
08690-6042 DRIVE ASSY: DIAL (LIGHT GRAY)
# 08690-60056 DRIVE ASSY: DIAL (MINT GRAY) (STANDARD COLOR)
#Denotes
standard
color
for
8690B
part
beginning
with
this
change.
Page
6-19, Table 6-1, under MISCELLANEOUS:
Add the following 8690B parts or description changes.
08690-0016 TOP COVER
ASSY
(BLUE GRAY)
#08690-00033 TOP COVER
ASSY
(OLIVE GRAY) (STANDARD COLOR)
08690-00031 REAR PANEL (LIGHT GRAY)
# 08690-00035 REAR PANEL (MINT GRAY) (STANDARD COLOR)
5000-0746
#5000-8725 SIDE COVER 8 X 16 (BLUE GRAY)
SIDE COVER 8 X 16 (OLIVE GRAY) (STANDARD COLOR)
HEWLETT~~
PACKARD
6
.
•·.
Model8690B 08690-90018
CHANGE 4 (cont'd)
08690-0017
BOTTOM
COVER ASSY (BLUE GRAY)
#08690-00034 BOTTOM COVER ASSY (OLIVE GRAY) (STANDARD COLOR)
RACK
MOUNT
KIT 8H (LIGHT GRAY)
5060-0777
' # 5060-87
42
RACK MOUNT KIT 8H (MINT GRAY) (STANDARD COLOR)
5060,0765
# 5060-8735 RETAINER HANDLE ASSY (BLUE GRAY)
RETAINER HANDLE ASSY (OLIVE GRAY) (STANDARD COLOR)
#Denotes
standard
color
for
8690B
part
beginning
with
this
change.
CHANGE5
Page 6-4, Table 6-1:
,Change transistor A3Q6
to
HP Part No. 1854-0079,TRANSISTOR: SILICON NPN, 2N3439.
I
Page 6-6, Table 6-1:
Add diode A4CR12 1901-0033 DIODE: SILICON
100
mA 180
WV.
Fllg~6-9,
Table 6-1:
Change transistors A6Q1/A6Q2
to
HP Part No. 1854-0079, TRANSISTOR: SILICON NPN, 2N3439.
·Page 6-12, Table 6-1:
Change resistors A10R17/A10R18
to
HP Part No. 0698-3126; .R: FXD 17.8K
OHM
1%
1/8W. (Recommended replace-
ment for 8690B instruments with serial prefiXes 1114A and 1124A.)
Page 7-3, Figure 7-2:
Change value
of
resistors A10R17/A10R18
to
17.8K ohms.
Page 7-5, Figure 7-3:
Change transistor A3Q6 to·HP Part No.1854-0079.
Page 7-9, Figure 7-5:
Add diode A4CR12 in series with zener diode A4CR11. Connect cathode
of
A4CR12
to
ground, and anode to A4CR11.
Page 7-17, Figure 7-9:
Change transistors A6Q1/A6Q2
to
HP
Part No. 1854-0079.
CHANGE
6
Page 6-7, Table 6-1:
Change A5Q2
to
HP Part No. 1854-0475.
Page 6-14, Table 6-1:
Change A12Q4
to
HP
Part No. 1854-0475.
Page
7-13, Figure 7-7:
Change A12Q4A and A12Q4B to HP Part No. 1854-0475.
Page 7-17, Figure 7-,9:
Change A5Q2
to
HP
Part No. 1854-0475.
•
CHANGE7
Page
6-18, Table 6-1:
Add HP Part No. 3160-0092 GUARD: FAN BLADE.
....
CHANGE
8
Page
6-10, Table 6-1:
Change A8R14 to
HP
Part No. 0698-3402, R: FXD MET FLM 316
OHM
1%
1/2W.
....
CHANGE
9
Page
6-10, Table 6-1:
Change A8C4 and A8C5 to
HP
Part No. 0160-4051 C: FXD .01 UF 4 kV.
-
HEWLETT
II
PACKARD
7
i\lodel 8690B
Figure
1.
Component
Identification,Assembly
AB
(Part
ofChange
1) .
Figure
2.
Component
Identification, Assembly
A14
(Part
of
Change
2)
.
·•
"
08690-90018
8
c.o
I
I@!)
®
~
e______:j
LINE
~btTAGE
0!STANOSY!
~
@>
I P/OASHV
PWR
SUP
ASSY
llr
_____
l
II.~.
!:,,
~-
_[
__
l_
®i
WI~§~~
~~NEUT
4U--i-<
4--:J_
~fl.~
8
'"
~
D
~
c:::-~!
::-
.
.:y
."~~~Cr:f:~~;KAitO
CO
@.ID
@J
NOTE
I.
WAVEFORM
AND
VOLTAGE
CONDITIONS;
,.
14 Al4 HEATER
SUPPLY
ASSY
(08690-60054)
:14.,
r-
--------
KI
~
.1-----.1
~?_
-1
.+77.6V.
,
~
j +77.6
I
r:
VDC
CW
OPERATION.~@)
®
@®
®®
"'
7500
~
t CID +275VOC
~----~~~
:
R5
22!K
VOLTAGE
DIFFERENTIAL
12.6VDC
J XAI4
I I
~"'
j
••ssv
I ' I
1
5110
)
~+65.0VDC
• I I
Qlo
I~:"
I
,:=,--(@To""'IT
L.l__O""'-'I 1
I~
1
1uu
I I 1
(
~
1
~
)
~·•ovoc
,
-,
, I
"
C6
Ql,2
fll3-16
.,.
Cl-7
CRI-4
ICI-3
01
Rl-19
+.J..cs
50
A9
Cl,2,4,7
CRI-8,17
Rl,3,4,8,9
RTI
"
81
C3-5
"
K2,3
g;s~IS,24-2
7
511,14
Tl
I I
F2-4
WI
I
I__
)(AI4
L__
__
~~@
= I i
Jl2
I
-~·6YG
Rl7
3480
+4-cr
100 '
I I
GfiOLJNifED
TO
Jl0
2
8690
CHASSIS
ATJI2
CONNECTED
TO
8690
GROUND
JUNCTION POINT
AT
REAR
OF
A7
I
I
J\2
II
~
. . I I t""
1"""
I I
/I
:
,_l-<@~~~~'
""!t'
::i('l(
)~-6.3VDC
------
_j
Figure
3.
Power
Supply
Section, +20V,
+12.6Vand-
6.3V
Power Supplies
(Part
of
Change
2)
•------
..
----··-
..
·-·-····-
-····--
I
~
Q.
~
00
~
c.o
0
l:l:!
0
00
~
c.o
0
Co
0
0
'""'
00
Model 8690B 08690-90018
*FACTORY
SELECTED
PART,MAY
BE
OMITIED
Figure
4.
Component
Identification,Assembly
A4
(Part
of
Change 5)
10
Model 8690B 08690-90018
Figure
5.
Component
Identification,
Assembly
A3
(Part
of
Change 1)
11
Other manuals for 8690B
6
Other HP Measuring Instrument manuals
