Air Techniques A/T2000 XR, Руководство по обслуживанию, Страница: 19 / 60

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ELECTRICAL DIAGRAMS AND TEST POINTS
AT2000 XR Electrical Diagrams & Test Points
Wiring, test point and thermistor resistance information for the AT2000 XR Film Processor is
provided in this section. The associated charts/diagrams identify all serviceable features and
provide the required parameters to facilitate equipment troubleshooting. Refer to the
appropriate information as required to quickly identify and resolve the equipment fault issue.
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TEST POINT CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
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SYSTEM SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
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CONNECTOR DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
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THERMISTOR RESISTANCE CHART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Note: All J1 measurements are made relative to base harness, inside processor while module
is connected. Use needle nose probes when for measurements.
COMPONENT CONNECTOR LIST
J1 = MODULE CONNECTOR (14 PIN ROUND CONNECTOR ON REAR OF PROCESSOR)
J2 = WATER LEVEL SENSOR J5 = DEVELOPER THERMISTOR PROBE
J3 = DRIVE MOTOR J9 = REPLENISHER PUMPS
J4 = CHEMISTRY HEATER PAD TB4 = CIRCULATOR DRAWER
COMPONENT
(Being Evaluated)
TESTPOINT
CONNECTOR
TESTPOINT
PIN No's
VOLTGAGE RANGE
(VAC)
RESISTANCE RANGE
(Ohms)
WATER SENSOR (Shorted
Contacts)
J1 4 & 12 N/A 500 - 600
J2
(component side)
2 & 3 N/A 500 - 600
DRIVE MOTOR J1 3 & 5 (Endo) 103.5 - 126.5 245 - 300
J1 3 & 6 (Endo) 103.5 - 126.5 245 - 300
J3
(component side)
1 & 2 N/A 500 - 600
J3
(harness side)
1 & 3 (Endo) 165 - 175 245 - 300
J3
(harness side)
2 & 3 (Norm) 165 - 175 245 - 300
HEATER PAD J1 3 & 10 N/A 52.5 - 60.5
J4
(harness side)
1 & 2 103.5 - 126.5 N/A
J4
(component side)
1 & 2 N/A 52.5 - 60.5
THERMISTOR J1 13 & 14 N/A
See
Resistance Chart,
page 22
J5
(component side)
1 & 3 N/A
REPLENISHERS J1 2 & 3 103.5 - 126.5 1225 - 1500
J9
(harness side)
1 & 2 103.5 - 126.5 N/A
J9 1 & 2 103.5 - 126.5 1225 - 1500
WATER SOLENOID J1 3 & 9 103.5 - 126.5 505 - 615
OR
WATER RECIRCULATION
PUMP
J1 3 & 9 103.5 - 126.5 92 - 140
RECIRCULATORS J1 3 & 8 103.5 - 126.5 11 - 13
TB4 1 & 2 103.5 - 126.5 N/A
The following test point chart lists the test point and expected voltage and resistance value
for the associated component of the AT 2000 XR Film Processor. Use the tables along
with the system schematic to check the operating values of each listed component.
Note: All values listed are the normal operating parameters for that component. Any different
values measured during testing implies a problem with that component.