Section
1—7623/R7623 Service
OPERATING
INFORMATION
Operating Voltage
The
7623/R7623 can be operated from either a 110-volt
line or
220-volt
line source. In addition, three operating
ranges
can
be
selected
by a jumper located on the Rectifier
board.
See Fig. 1-1. Select a range that is centered about
the
average line voltage to which the instrument is
connected. See Table 1-1 for
ranges and proper fuses.
Table
1-1
Pins
Regulating
Range
Selected
1
10-volt
nominal
220-volt nominal
Low
90
to 110
volts
180
to 220
volts
Med
99 to
121 volts
198
to 242
volts
Hi
108 to 132 volts
218
to 262
volts
Line Fuse
3.2
A
Slow-blow
1.6 A Slow-blow
Operating
Temperature
The
7623/R7623
can be operated where the ambient air
temperature
is between
0°C and
+50°C. The
7623 is cooled
by air
drawn through the instrument. Maintain about
two-inches
clearance for
proper ventilation on all sides and
the
top. The
feet on the bottom of the instrument provide
the
necessary clearance.
The R7623 is cooled by air drawn
through
the
air
filter on the rear of the
instrument and
blown
out
through the holes on the right side. Maintain
two-inches
of clearance on the right side for proper
ventilation. A thermal
cutout
switch in the instruments
provides thermal
protection, and
interrupts the power to
the
instrument if the internal temperature exceeds a safe
operating level.
Plug-in
Installation
and
Removal
To
install a plug-in unit into one of the plug-in
compartments,
align the
slots
in the top and bottom of the
plug-in
unit
with
the associated guide rails in the plug-in
compartment.
Push the plug-in unit firmly into the plug-in
compartment
until it locks into place. To remove the
plug-in
unit, pull the
release latch on the plug-in unit to
disengage
it, and
pull the unit out of the plug-in
compartment. Plug-in
units
can be removed or installed
without
turning off
the instrument power. Special purpose
plug-in
units may have specific restrictions
regarding the
plug
in compartments
in which they can be installed. This
information
will be given
in the
instruction manual for
these plug-in
units.
Operation
The
following information provides the necessary
controls and control settings to obtain a display, which can
be used
to
verify basic operation
or calibration without
removing
the covers or making any internal adjustments. In
the
NON STORE
mode the 7623 functions the same as
a
conventional
oscilloscope. The CALIBRATOR
signal is a
convenient signal for
verifying basic operation and
calibration.
Use the
Operating Set-Up Information as a
guide for
setting
the front panel
controls.
Non-Store
Operating Set-Up
Information
INTENSITY
READOUT
GRATICULE
ILLUM
FOCUS
TRIG SOURCE
VERT MODE
POWER
As desired (midrange)
As desired
As
desired
Well
defined
display
VERT MODE
Selected
for the plug-in
compartment
with
the
plug-in unit
installed and
with
signal input
to be
displayed.
Pressed
in
Spare
jumper
Fig.
1-1. Location of Voltage-selector jumper, spare jumper, and
230
V
fuse in power-unit (shown removed).
1-1
Summary of Contents for 7623
Page 1: ...MANUAL 7623 R7623 STORAGE OSCILLOSCOPE SERVICE MANUFACTURERS OF CATHODE RAY OSCILLOSCOPES ...
Page 51: ...Fig 3 2 Block diagram of Logic circuit Circuit Description 7623 R 7623 Service ...
Page 72: ...W NJ 00 Fifl 3 22 Low Voltage Power Supply detailed block diagram ...
Page 73: ...Circuit Description 7623 R 7623 Service ...
Page 74: ...CO NJ CD Fig 3 22 Low Voltage Power Supply detailed block diagram cont ...
Page 75: ...Circuit Description 7623 R 7623 Service ...
Page 97: ...Circuit Description 7623 R7623 Service 3 51 ...
Page 98: ...Circuit Description 7623 R7623 Service Fig 3 39 Output Pulses for the Storage Circuits 3 52 ...
Page 103: ...Circuit Description 7623 R7623 Service 3 57 ...
Page 108: ... Ç À Fig 4 2 Location of circuit boards in the 7623 ...
Page 109: ...Fig 4 3 Location of circuit boards in the R7623 Maintenance 7623 R 7623 Service ...
Page 113: ...Maintenance 7623 R7623 Service Fig 4 6 Circuit Isolation Troubleshooting Chart 4 9 ...
Page 165: ...7623 BLOCK DIAGRAM ...
Page 166: ...7623 R7623 Service Front of Board ...
Page 167: ......
Page 168: ...FL ...
Page 169: ......
Page 173: ...7623 Logic ...
Page 175: ...Vertical Interface A4 ...
Page 178: ...Vertical Interface ...
Page 180: ...Vertical Amp A5 ...
Page 184: ...Horizontal Amp A6 ...
Page 186: ...7623 TO P450 VERT AMP 3 HORIZONTAL AMPLIFIER ...
Page 188: ...Output Signals A7 ...
Page 190: ...FROM 7G23 Output Signals g ...
Page 195: ...FROM LV POWER SUPPLY 7623 CRT CIRCUIT ...
Page 197: ......
Page 200: ......
Page 202: ...Storage Output A14 ...
Page 204: ......
Page 205: ...7623 R7623 Service Fig 6 14 A15 Cal Storage circuit board ...
Page 208: ......
Page 209: ...7623 R7623 Service Fig 6 15 A16 Readout System circuit board ...
Page 213: ......
Page 242: ...7623 R7623 OSCILLOSCOPE b ...
Page 243: ...151 ...
Page 246: ...20 ...
Page 247: ...7623 R7623 OSCILLOSCOPE 112 ...