Tektronix 543B Instruction Manual page 26

Maintenance
—
Type
543B/RM543B
found
to
be
good
to their original sockets.
If
the trouble
is
not the
result of
o tube
or transistor failure
use the
lollowirtg
procedure.
1.
Isolate
the trouble
to
a portion of the
circuit
if
possible.
2.
Recheck the reoction
of the front-porsel corttrols
ond
colt-
brotion
adjustments on
the effected
circuit.
3.
Check
the
voltoge
in the
circuit.
Typicol operating
voltages ore given on
the
schemotic diogrom.
4.
Check woveforms
in
the circuit
with another
oscilloscope.
Typical
waveforms
ore
given on
the
schematic diagram.
5.
Check
the
components
in
the
circuit (i.e.,
check for foulty
copocitors, off-tolerance
resistors, etc.).