Troubleshooting For Motors And Sensors - Epson Stylus Photo RX 560 Service Manual

EPSON Stylus PHOTO RX560/580/590
Carriage operates but error indicated
Table 3-19. Carriage operates but error indicated
Cause Check Point
Upper case of scanner is Upper case of scanner is
removed. removed.?
Defective main board ---
Defective CR HP sensor
---
board
LED does not light up
Table 3-20. LED does not light up
Cause Check Point
Connector on the Main Connector CN19 on main
Board is disconnected board is disconnected?
Does the lamp light up when
Defective CIS Unit
the CIS Unit is replaced?
Defective main board ---
Picture cannot be read clearly
Table 3-21. Picture cannot be read clearly
Cause Check Point
Is the document table (glass)
Soiled document table free from dirt and wiping
mark?
Defective CIS Unit ---
Defective main board ---
Troubleshooting
Yes/No Remedy
Yes Install the upper case.
--- Replace the main board
Replace the CR HP sensor
---
board.
Yes/No Remedy
Connect the connector
Yes
CN19 on the main board.
Yes Replace the CIS Unit.
--- Replace the main board
Yes/No Remedy
No Clean the document table.
--- Replace the CIS Unit.
--- Replace the main board
Troubleshooting When There is No Error Display

3.3.6 Troubleshooting for Motors and Sensors

Motor
Table 3-22. Motor Resistance and Check Points
Motor Name Location
CR motor CN14 (White)
PF motor CN13 (Black)
CR motor (Scanner Unit) CN17 (White)
Sensor
Table 3-23. Sensor Check
Sensor Name Location
PE sensor
CN6 Pin 1&3
(3.3V DC ±5% )
APG sensor
CN7 Pin 1&3
(3.3V DC ±5% )
CD-R Guide sensor
(3.3V DC ±5% )
CN11 Pin 1&2
Pin 3&4
CD-R Tray sensor
(3.3V DC ±5% )
Note : Refer to "2.1.2 Motors and Sensors" (p.17)
Revision A
Check Point Resistance
22.7 Ω ± 10%
Pin 1 & 2
21.2 Ω ± 10%
Pin 1 & 2
Pin 1 & 2
Signal Level Sensor Status
2.4V or over Paper absent
Less than 0.4V Paper present
2.4V or over PG position
Less than 0.4V Out of PG position
Open: 2.4V or over CD-R Tray present
Close: Less than 0.4V CD-R Tray absent
Open: 2.4V or over CD-R Guide down
Close: Less than 0.4V CD-R Guide up
for the locations of the motors and sensors.
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