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Service Manual
8-5-65. 27-123: SPINNER Error
LOCAL PANEL Message
Internal Hardware Failure:--
Alarm sounds
Summary
The OPTICS MODULE SPINNER is not rotating, or is not rotating consistently at the correct speed. The
SPINNER MOTOR scans the laser across the film, as the beam is reflected successively from the two
MIRROR facets in the double scan process. Turn on and speed of the MOTOR are controlled by the
SLAVE MICRO on the OPTICS MODULE CONTROL BOARD. (Refer to sheet 2 of the SYSTEM
functional diagrams.) The speed control signal (SERIAL CLK) from the SLAVE MICRO is fed to a DAC.
The analog output of the DAC is amplified and used as a drive signal for the SPINNER MOTOR. During
each revolution of the SCANNER, a PHOTODETECTOR (SHAFT INDEX SENSOR) is activated by the
laser beam reflecting off a shiny area on the ADAPTER that secures the MIRROR to the SHAFT of the
SPINNER MOTOR. The resultant signal is used to track speed of the SPINNER MOTOR. If the speed of
the MOTOR goes out of spec, 27-123 is declared.
Result of Error
The IMAGER is unable to print film. It can accept and queue new jobs, but it will not initiate new films.
Films downstream from the PLATEN will be completed. All other films will be reprinted. The error can be
cleared only by restarting the IMAGER.
User Action
1. Restart the IMAGER.
2. If the error persists, call Service.
FE Action
1. The SPINNER MOTOR should be rotating if a print has been requested in the last half hour. Listen for
the sound of the MOTOR. If the MOTOR is not spinning, the SCANNER MODULE will have to be
replaced. If it is spinning, assume that the speed of rotation is out of spec.
2. The problem may be a noisy or out of spec +5 VDC SUPPLY (possibly affecting operation of the
SHAFT INDEX SENSOR). For consistent monitoring of SPINNER speed, the supply voltage must not
be lower than 4.9 VDC, as measured on the MCS BOARD. (Use the VCC1 test point, with ground at
GND1.)
3. If the DC SUPPLY is OK, suspect one of the following components: SHAFT INDEX SENSOR,
OPTICS SPINNER MOTOR, or OPTICS MODULE CONTROL BOARD. Since all these components
are contained within the SCANNER MODULE, if one of them fails, the SCANNER MODULE must be
replaced.
Note
If the SCANNER is not used for 30 minutes, the SPINNER MOTOR is turned off. Low volume sites
have had some problems with the motor "sticking" because of infrequent use. If this occurs, the
SCANNER MODULE must be replaced.
8-74
Log Message
Spinner fails to rotate at desired
speed
DICOM Message
Severity
ELEC DOWN
0--Fatal
7F3318
2005 July Rev. B
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Troubleshooting
