Polaroid SprintScan SS35, Repair Manual

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Slide Scanner Repair Manual Scanner Overview
Self-Check Routines
The slide scanner provides two internal self-check software routines that are used to
automatically check (verify) its operation. The two internal self-check software routines are:
• Self-Test (Power-Up)
• Calibration
Self-Test (Power-Up) Routine
When the slide scanner is turned on, the self-test (power-up) routine is automatically invoked.
This routine checks and verifies the following operations:
• Initializes all system electronics (image sensor and main controller PC boards).
• Finds calibration window (Transporter moves shutter to its calibration window
position and stops.)
Note: If the calibration window position can not be found, the transporter moves
to its top position and then returns the shutter to what it thinks is the correct
position.
Refer to the simplified flow diagram shown in Figure 1-7 for the necessary steps to self-test the
slide scanner during power-up.
Upon completion (passed self-test), the transporter returns to its home position and the Ready
LED lights steady to indicate that the slide scanner is ready to operate.
Notes: • If the yellow Ready LED continually blinks, the slide scanner failed its self-test.
Run the LabVIEW IPT test to determine why the slide scanner failed its
self-test . (Refer to the applicable LabVIEW test in Section 5 of this Repair
Manual for detailed instructions on how to run the LabVIEW test procedure.)
• If the yellow Ready LED does not light after the self-test is performed, turn off
the slide scanner (power-down), wait approximately 10 seconds and then
power-up again.
Causes of self-test (power-up) failure are usually due to a defective EEPROM, incorrect
EEPROM data, the inability to find the calibration window, or a blown SCSI terminator fuse.
Refer to Section 5 in this Repair Manual for self-test errors.