Wavetek 3000 Instruction Manual page 140

SCHEMATICS
7 .4
SCHEMATIC INDEX
3000
DPS2A
M30
C316
M29-2
M31A
M33
M172
M32A
M34
M9W
C315
M10W-9
The schematics appear in the following order .
ASSEMBLY
NAME
Wiring Diagram
Power Supply
Crystal Reference
Modulation Board
FM Reference
kHz Steps
Narrow Oscillator Lock
Sweep Drive./DAC
MHz Steps
Wide Oscillator Lock
Sweep Oscillator
Meter Board
Output Amplifier
Printed circuit board layouts, where applicable, are shown opposite their corres-
ponding schematics .
7 .3
ABBREVIATION CODE
A
Assembly
IF
intermediate frequency
2 ohm
A ampere
J
Jack
OC
opto coupler
AC
alternating current
K
relay
P
plug
C
capacitor
kHz
kilohertz
pp
peak-to-peak
CR
diode
k2
kilohm
pF
picofarad
CW
continuous wave
kV kilovolt
Q
transistor
cw
clockwise
kW
kilowatt
R
resistor
dB decibel
L
inductor
RF
radio frequency
dBm decibel referred to 1 mW
MHz
megahertz
RMS
root-mean-square
dBmV decibel referred to 1 mV
M52
megohm
R .P .
rear panel
DC
direct current
uF microfarad
S
switch
DS
indicating device, lamp
VA microampere
T transformer
F
farad
uH microhenry
TP
test point
F .P .
front panel
M
meter
V
volt
H
henry
mA milliampere
VA voltampere
Har
harmonic
mH
millihenry
W
watt
Hz hertz
mV
millivolt
X
crystal
IC integrated circuit
mW
milliwatt