The table below indicates switching logic for the unit’s various components. Except for the power control switch (PCSW), each component can be monitored from the various pins of CN508 (located on the input control board).
When performing these checks, use test point TP 1 (located below CN507 on the input control board).
Table
Connector | Component | Monitored | Condition |
|
|
|
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PHS | High | Paper present | |
|
| Low | No paper present |
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|
|
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PES | High | Paper present | |
|
| Low | No paper present |
|
|
|
|
IPES | High | Paper present | |
|
| Low | No paper present |
|
|
|
|
IULS | High | Limit | |
|
| Low | No Limit |
|
|
|
|
DSW | High | Door open | |
|
| Low | Door closed |
|
|
|
|
ILLS | High | Limit | |
|
| Low | No Limit |
|
|
|
|
NPS | High | ON | |
|
| Low | Off |
|
|
|
|
IPM (M2) | +12 Vdc | Feed | |
|
| 0 Vdc | No feed |
|
|
|
|
IEM (M1) | +12 Vdc | Up | |
|
| 0 Vdc | Off |
|
|
|
|
IEM (M1) | +12 Vdc | Down | |
|
| 0 Vdc | Off |
|
|
|
|
PCSW | 0 Vdc | Unit mounted | |
|
| +12 Vdc | Unit not mounted |
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Options |