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multipunch
fail
Perform escape-punch
first cycle dup, and
All operations
1
Check clutch mechanism |
t
Proceed to appropriate
routine to diagnose fault
Check clutch circuits
Escape Punch]
___[Meltipunch
Press character key,
Watch punch bail
]
First Cycle Dup
punch bail
Manually duplicate a
punched column, Watch
Hold down mutlipunch key.
Press combination key and
watch punch bail
More than one
Cycles
None
More than
two
More than one per key
|
Check escapement
Check clutch mechanism
Check clutch circuits
(After escape
cycle)
None
(After escape cycle)
Check multipunch relay
|
Check interposer bail |
contact
Check escape intlk
Check clutch nechonten |
L
|
Check multipunch circuit
Check clutch mechanism
|
Check escape intlk relay |
—
Check dup relay setting
Check clutch circuits
| check clutch mechanism
|
Check clutch circuits
|
I
I
1
Check clutch circuit
L
!
Check clutch circuit |
Check escape
==
No trouble found, go
to interposer selection
flowchart (Figure 1-7)
Figure 1-9. Punch Drive Cycle
1.6.2 Interrupting Machine Operation
The sequence of machine operation can be interrupted and
controlled by removing a lead from the controlling mag-
nets. For example, a lead can be removed from the escape
magnet or from the punch clutch magnet. Operation can
then be controlled by retouching the lead long enough for
one operation to occur.
CAUTION
The machine should not beleft static in the middle of an
operating sequence for a long period of time.
The source of undesired operations can often be located
by removing leads along the undesired circuit until the
source is found. This should not be done in reed-relay
circuits with poweron.
1-8
(4/69)
1.6.3 Jumpering
Portions of circuitry suspected of being open can be
jumpered to determine whether they are open. It is also
useful to jumper the desired voltage into a circuit, to
determine how muchofthe circuit operates correctly.
Circuit Card Tab Connections: Individual wires are easily
removed from the connectors to facilitate circuit diagnosis
or componentisolation. To remove wires from Amphenol
connectors, use AMP* disconnect tool (part 452815).
1.6.4 Measuring
A voltmeter can be used while the machine is static to
measure the magnitude of a voltage. Manual operation may
*Trademark of Amp, Incorporated
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