HP 204C User manual

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DI
15-1
WILS
GOVU
D
101.11
:
11-6625-1589-15-1
TM
11-6625-1589-15-1
TECHNICAL MANUAL
UNIVERSITY
OF
MINNESOTA
GOVERNMENT
PUBLICATIONS
LIBRARY
JAN 12 1989
U.S.
DEPOSITORY
PROPERTY
U.S.
-
G.P.O.
-
D
-
295
OPERATOR'S , ORGANIZATIONAL , DIRECT SUPPORT
GENERAL SUPPORT , AND DEPOT
MAINTENANCE
MANUAL
HEWLETT - PACKARD OSCILLATOR
MODEL 2040
HEADQUARTERS , DEPARTMENT OF THE ARMY
NOVEMBER 1971
GP STORAGE

TM
11-6625-1589-15-1
Information in this publication has been furnished under United States Government
Contract No. DA 28-043 - AMC - 01693 ( E ) and shall not be either released outside the
government , or used , duplicated , or disclosed in whole or in part for manufacture
or procurement without the written permission of the Hewlett - Packard Company .
* TM 11-6625-1589-15-1
TECHNICAL MANUAL
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON , D.C. , 3 November 1971 No. 11-6625-1589-15-1
Operatoris
,
Organizational
,
Direct
Support
,
General Support
,
and
Depot
Maintenance
Manual
HEWLETT - PACKARD OSCILLATOR MODEL 204C
TABLE OF CONTENTS
Section
I
.
INTRODUCTION
1-1
.
Scope
..
1-2
.
Indexes
.
1-3
.
Forms
and
Records
.
1-4
.
Technical
Characteristics
.
1-5 .
Description
. ..
1-10
.
Options
Available
.
1-12 . Items Comprising an Operable Equipment .
Page
1-1
1-1
1-1
1-2
1-3
1-3
1-3
.
2-5
.
Section
II
INSTALLATION
2-1
.
Introduction
2-3
.
Initial
Inspection
Power
Requirements
.
2-8
.
Grounding
Requirements
2-11
.
Installation
2-13 .
Bench
Mounting
2-15 .
Rack Mounting
.
2-17
.
Combination
Mounting
.
2-19 . Repackaging for Shipment
Page
2-1
2-1
2-1
2-1
2-1
2-2
2-2
2-2
2-2
2-2
.
.
* This technical manual is an authentication of the manufacturer's commercial
literature and does not conform with the format and content specified in AR 310-3 ,
Military Publications . This technical manual does , however , contain available
information that is essential to the operation and maintenance of the equipment .
i

11-6625-1589-15-1
TABLE
OF
CONTENTS
(
CONT
)
Section
III
.
3-7
.
.
Page
3-1
3-1
3-1
3-1
3-1
3-1
3-
2
3-5
3-5
3-5
3-6
3-7
OPERATING
INSTRUCTIONS
3-1
.
Introduction
.
3-3 . Instrument Description
3-5
.
Turn
-
on
Procedure
.
Operating
Considerations
3-8
.
Floating
Output
3-10 . Synchronization
3-13 . Low Distortion
3-15 . Battery Operation
3-16 . Rechargeable Battery Operation
3-22
.
Recharging
Nickel
-
Cadmium
Batteries
3-29 . Cycle - life of Nickel Cadmium Batteries
.
Section
IV
PRINCIPLES
OF
OPERATION
.
4-1
.
Introduction
.
.
4-3
.
Block
Diagram
Description
4-4
.
Bridge
and
Amplifier
4-10
.
Peak
Comparator
4-12
.
AGC
.
4-14
.
600
Ohm
Attenuator
Page
4-1
4-1
4-1
4-1
4-2
4-2
4-2
.
.
.
.
.
Section
V
MAINTENANCE .
5-1
.
Introduction
5-4
.
Performance
Checks
5-6
.
Dial
Accuracy
Check
.
5-7
.
Flatness
Check
.
5-8
.
Distortion
Check
.
5-9
.
Output
Voltage
and
Impedance
Check
5-10 . Output Control Check .
5-11 . Sync Output Check
5-12
.
Sync
Input
Check
.
5-13
.
Balance
Check
.
5-14 . Hum and Noise Check
5-15 . Adjustment and Calibration Procedures
5-16
.
Introduction
.
5-19 .
Power Supply
.
5-21
.
Bias
Adjustment
5-22
.
AGC
Adjustment
5-23 . AGC and Frequency Adjustment
5 - 24
.
High
Frequency
Adjustment
5-25
.
Distortion
Adjustment
.
5-26 . Troubleshooting Procedure
Page
5-1
5-1
5-1
5-1
5-2
5-4
5-5
5-6
5-6
5-6
5-7
5-7
5-9
5-9
5-9
5-9
5-9
5-9
5-10
5-10
.
.
.
5-11
ii

TM
11-6625-1589-15-1
TABLE
OF
CONTENTS
(
CONT
)
Section
VI
CIRCUIT
DIAGRAMS
6-1
.
Introduction
6-3
.
Schematic
Diagrams
6-5
.
Component
Location
Diagrams
Page
6-1
6-1
6-1
6-1
.
.
Appendix
A. REFERENCES
.
A - 1
.
B.
MAINTENANCE ALLOCATION
A
-
2
:
iii

TM
11-6625-1589-15-1
SECTION 1
INTRODUCTION
1-1 .
SCOPE .
This manual describes the Hewlett - Packard Oscillator Model 204C and covers
its operation , and organizational , direct and general support , and depot mainten
ance . It includes troubleshooting and replacement of parts available to organiza
tional , DS , GS , and depot maintenance personnel .
1-2
.
INDEXES OF PUBLICATIONS .
a .
Refer to the latest issue of PA Pam 310-4 to determine whether there are
new editions , changes , or additional publications pertaining to this
equipment .
b
.
Refer to the latest issue of 310-7 to determine if there are current ,
applicable modification work orders . ( MWO's ) pertaining to this equipment .
1-3 .
FORMS AND RECORDS .
a
.
REPORT OF MAINTENANCE AND UNSATISFACTORY EQUIPMENT . Use equipment forms
and records in accordance with instructions in TM 38-750 .
b
.
REPORTS OF PACKAGING AND HANDLING DEFICIENCIES . Fill out and forward
DD Form 6 ( Report of Packaging and Handling Deficiencies ) as prescribed in
AR - 700-58 ( Army ) , NAVSUP Publication 378 ( Navy ) , AFR 71-4 ( Air Force ) and
MCO
P4030.29
(
Marine
Corps
) .
C.
DISCREPANCY IN SHIPMENT ( DISREP ) ( SF361 ). Fill out and forward Discrepancy
in Shipment Report ( DISREP ) ( SF361 ) as prescribed in AR 55-38 ( Army ) ,
NAVSUP Pub 459 ( Navy ), AFM 75-34 ( Air Force ) and MCO P4610.19 ( Marine
Corps
) .
REPORTING OF EQUIPMENT MANUAL IMPROVEMENTS . Report of errors , omissions ,
and recommendations for improving this manual by the individual user is
encouraged . Reports should be submitted on DA Form 2028 ( Recommended Changes
to DA Publications ) and forwarded direct to : Commanding General , U.S.Army
Electronics Command , ATTN : AMSEL - ME - NMP - EM , Fort Monmouth , New Jersey 07703 .
1-1

TM
11-6625-1589-15-1
1-4 .
TECHNICAL
CHARACTERISTICS
RANGES
Frequency : 5 Hz to 1.2 MHz in 6 overlapping ranges ,
PERFORMANCE
RATINGS
Dial
Accuracy
:+3%
of
frequency
setting
.
Flatness
:
At
maximum
output
into
6000
load
1
kHz
reference
.
Sync Input : Oscillator can be synchronized to ex
ternal
signal
.
For
5
V
rms
input
,
sync
frequency
can
be
as
much
as
£
7
%
away
from
set
frequency
(
sync
range
).
Sync
range
is
a
linear
function
of
sync
voltage
.
Low
Dist
.
Mode
$
1
%
+
0.5
%
+
1
%
+
5
%
Normal
Mode
+
0.5 %
+
1
%
-1
%
100
300k
1.2M
THz
)
Distortion
:
GENERAL
Operating
Temperature
:
Instrument
will
operate
within specifications from
0 ° C to 55 ° C .
Storage Temperature : -40 ° C to + 75 °C.
Power : Standard : AC - Line 115V or 230 V + 10 % ,
50 Hz to 400 Hz , < 4W .
Opt 01 : Mercury batteries 300 hours opera
tion
Opt
02
:
Line
/
Rechargeable
batteries
115V
or
230V
+ 10 % , 50
Hz
to
400
Hz
,
<
4W
.
40
hours
operation
per
recharge
NORMAL
MODE
LOW DIST . SODE
0.35
Dimensions
:
6-3
/
32
"
high
,
5-1
/ 8 "
wide
,
8"
deep
(
155
x
130,1
x
203,2
mm
) .
0.1
100
200
PORQUENCY
Weight : Net 6 lbs ( 2,7 kg )
Shipping
8
lbs
(
3,6
kg
)
Hum
and
Noise
:
Less
than
0.01
%
of
output
.
OUTPUT CHARACTERISTICS
Output Voltage : 2.5V ims ( 10mW ) into 6000 ;
SV
rms
open
circuit
:
Output
Impedance
:
600N
at
any
attenuator
setting
.
Output
Control
:
>
40
dB
range
;
continuously
ad
justable
.
Output
Balance
:
>
40
dB
below
20
kHz
.
Can
be
floated
up
to
500V
peak
between
output
and
chassis
ground
.
SYNCHRONIZATION
Sync
Output
:
Sine
wave
in
phase
with
output
;
1.7V
rms
open
circuit
;
impedance
10 kn
.
1-2

TM
11-6625-1589-15-1
1-5 . DESCRIPTION .
1-6 . The Model 204C is a stable signal source that produces sine wave frequencies
between 5 Hz and 1.2 MHz in six ranges . The output level is variable from 0 to 5
volts rms from a constant 600 ohm source . When working into a 600 ohm load , the
maximum output level is 2.5 volts rms .
1-7 . A SYNC feature is included in the Model 204C . The SYNC jack on the front
panel provides an output sync voltage of 1.7 V rms , or accepts an external signal to
synchronize the oscillator . This feature permits several oscillators to be synchronized
to the same frequency or harmonics thereof .
1-8 . The output of the Model 204C may be isolated from the cabinet . This floating
output is balanced to better than 40 dB below 200 kHz with an isolated , battery oper
ated instrument , or better than 40 dB below 20 k ! lz with an instrument having an ac
line connection .
1-9 . The standard Model 204C contains an ac power supply that can be operated
from 115/230 volts ac , 50 to 400 Hz . The instrument is also available with a
mercury battery power supply as an Option 01 , or with a rechargeable nickel cad
mium battery power supply as an Option 02. The various power supplies can easily
be interchanged by removing the instrument covers , unplugging one supply and
plugging another in its place .
1-10
.
OPTIONS
AVAILABLE
.
1-11 . The following power supplies are available in kit form for field installation :
-hp- 11107A AC Power Pack ( standard )
-hp - 111084 Mercury Power Pack ( Option 01 )
-hp- 11109A Rechargeable Battery / AC Power Pack ( Option 02 )
1-12
.
ITEMS COMPRISING AN OPERABLE EQUIPMENT .
FSN Item
Quantity
Height
(
in
)
Depth
( in )
Width
(
in
)
Weight
( lb )
5895-177-1400
1
6-3 / 32
8
5-1
/
8
6
Hewlett
-
Packard
Oscillator Model
204C
1-3