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Model 562A
5-1. INTRODUCTION.
SECTION
V
TROUBLESHOOTING
Section V
Section
V
contains information relating to symptom, trouble, and localization
of troubles which may occur in the recorder.
Table 5-1 lists the symptom,
then a possible cause.
It must be remembered that troubles other than those
listed could cause a malfunction.
The table lists the most possible cause.
01081-1
Table 5-1.
Symptom
No printer action when only
one data source is used
No printer action when two
data sources are used
All columns print incorrect
character
One particular column prints
an incorrect character
Printer mechanism will not
operate
Incorrect analog voltage
Trouble shooting
Possible Cause
See that the unused connector at the rear of
the control board (AI3) is disconnected.
Make sure print command is proper polarity.
Check power supply voltages, check print
command binarie s, check if both data
sources are initiating print commands and
of proper polarity.
Check power supply voltages, check the
control board for proper reset, transfer,
and scan signals (listed in timing voltage
table).
Make sure reference voltages are
correct.
Check the column board as sociated with the
particular print wheel.
Interchange column
boards"
if operation is restored, trouble is
in column board.
Make sure reference
voltages to column board are correct.
Press the RECORD ON switch to the down
position.
Recorder should print at maximum
rate.
1£ not, check fuses and power supply.
Make sure recorder is zeroed.
Check
tIl volt power supply on analog board.
Check clamp diodes.
5-1
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