Diagraph PA/4000, Руководство по обслуживанию, Страница: 149 / 213

Technician’s Guide 2-5
The Applicator Board controls the tamp valve, the air assist valve, and the vacuum valve
through the J1 connector. The J1 connector has 24.0 Vdc supplied to pins 1, 3, and 5. The
Applicator Board actuates the cylinder by providing a ground path on pin 2. Likewise the
Applicator Board actuates the air assist on J1 pin 4 and it controls the vacuum on the tamp pad
through J1 pin 6.
The Applicator Board also provides the signals to the Paper Edge Sensor (6105-046) through the
J2 connector. There is a potentiometer (R43) that sets the voltage level on J1 pin 1 based on if a
label is under the Edge Sensor. With no label under the sensor and only the backing being
sensed, the voltage should be 0.25 Vdc +/- 0.05. When a label is under the sensor, the voltage
should read greater than 2.0 Vdc.
The Label Low Cable Assembly (6105-047) interfaces to the Applicator Board through the J4
connector. Pins 1 and 3 are connected directly to 5.0 Vdc. Pin 4 supplies the sensor with a
current limiting resistor which sets the voltage at 4.3 Vdc +/- 0.5 volts. The return signal from
the sensor is brought onto the Applicator board on pin 2 . If the Label stock is low, the voltage
on this pin will be 0.5 Vdc or less. When the Label stock is not low, the voltage on this pin will
be 3.0 Vdc or greater. The potentiometer (R25) sets the voltage level for the Label Low trip
point. It is set at 0.6 Vdc +/- 0.05 volts and the voltage can be measured on U13 pin 4.
Depending on the revision level of the PA/4000, the Applicator Board also monitors the Ribbon
Low Assembly (6105-362) through the J6 connector. Pins 1 and 3 are connected directly to 5.0
Vdc. Pin 4 supplies the sensor with a current limiting resistor which should read 4.3 Vdc +/- 0.5
volts. The return signal from the sensor is brought onto the Applicator Board on Pin 2. When
the ribbon is not low, the voltage on this pin will be less than 0.5 Vdc. When the ribbon is low,
the voltage on this pin will be greater than 3.0 Vdc. The potentiometer (R40) sets the voltage
level for the Ribbon Low trip point. It is set at 0.5 Vdc +/- 0.05 volts and the voltage can be
measured on U13 pin 10.
The Ribbon Out Cable Assembly (6105-045) interfaces to the Applicator Board through the J5
connector. Pins 1 and 3 are connected directly to 5.0 Vdc. Pin 4 supplies the sensor with a
current limiting resistor which sets the voltage at 4.3 Vdc +/- 0.5 volts. The return signal from
the sensor is brought onto the Applicator board on pin 2. When the ribbon is not out, the
voltage on this pin will be less than 0.5 Vdc. When the ribbon is out, the voltage on this pin will
be greater than 3.0 Vdc. The potentiometer (R34) sets the voltage level for the Ribbon Out trip
point. It is set at 2.0 Vdc +/- 0.05 volts and the voltage can be measured on U13 pin 8.
The Applicator Board receives the Cutter signal on the J7 connector from the Prodigy Plus
Board. Pin 1 is connected directly to digital ground. Pin 2 has the Cutter signal on it from the
Prodigy Plus Board. Pin 2 voltage is greater than 4.5 Vdc, when there is no cutter signal, and it
changes to less than 0.5 Vdc when the cutter signal occurs. Remember that the PA/4000 must
have the Cutter Cable (6105-273) attached to the J7 connector and it must have the Cutter option
enabled in the Performance Series software for the unit to operate correctly.
The Applicator Board communicates to the Prodigy Plus Board through the J8 connector. The
Applicator Board sends the Pause, Feed, Stop, Transfer, Print, Darkness and Ribbon signals to
the Prodigy Plus Board through the J8 connector. It receives the Paper Error and Printer Error