4.
Set the
front panel and
Keypad/
Display
board
ona
flat
surface,
circuit board
down. Slowly
lift
the front panel
away
from
the
circuit
board,
then
place
the
front panel
on
a
soft
surface
to
prevent scratching.
Power Supply Calibration
The
following
equipment
is
required to calibrate
the
MicroLab
|
power supply.
@
a
digital
voltmeter
—
TEKTRONIX
DM502
or
equivalent
@
an
oscilloscope
— TEKTRONIX
465
or
equivalent
©
a
variable voltage
source that has
an
output
capacity
of
atleast
1
Aat
110
or
120
Vac
(+
or -10%),
or
at
least 0.5
A
at
220
or
240
Vac
(+
or -
10%).
@
acommon
screwdriver,
with
a
1/8
inch
flat
blade, non-
conductive,
and
at
least
10
inches
in
length.
-12
Volt
Adjustment
NOTE
The
following
procedure
is
used
to
calibrate
the
-12
volt
portion of
the
MicroLab
|
power
supply.
In
order
for you to
properly perform
this procedure,
the
MicroLab
|
power
supply
must
be
connected
to
the
-12
Volt
+12 Volt
+5
Volt
Adjust
Adjust
Adjust
Calibration—MicroLab
|
Instruction
Main
Interconnect
board. Connect
the
+5,
+12,
and
-12
volt power
leads
to
the square pins
in
the
upper
left
corner
of
the
Main Interconnect
board.
Tip
the
Main
Interconnect board
away
from
you
as
you
face
the
MicroLab
|,
so that
it
rests
well
clear
of the
MicroLab
|
chassis.
;
CAUTI
on
3
Cremer
Do
not
let
the
Main
Interconnect board touch
the
MicroLab
|
chassis during
any
of
these
calibration
procedures.
1.
Make
sure
all
power
switches
are
in
the
OFF
position.
Connect
the
MicroLab
|
power
cord
to the
MicroLab
|
power
receptacle
and the ac
power
supply.
2. Set
the
variable ac
power
supply
voltage
to
120
volts.
3.
Set
the
HIGH/LOW
line voltage switch on
the
MicroLab
|
power supply board
(shown
in
Fig.
6-5) to
the
HIGH
position.
110/220
Switch
2827-25
Fig.
6-5.
MicroLab
|
Power Supply
Adjustment
Points.
65
Summary of Contents for 067-0892-00
Page 9: ...MicroLab Instruction 2827 1 The TEKTRONIX MicroLab I vi REV A JUN 1980...
Page 101: ......
Page 102: ...MICROLAB AlddNS Y3MOd 3YHNDIS...
Page 103: ...JANVd LNOYS Z AHNDIS MICROLAB...
Page 104: ......
Page 110: ......