Diagnostics
9G9002 – 2011-08-15
4-81
Motors and Sensors
Important
During normal operation, jumpers should be off so that LEDs and optical sensors do not fog film.
JP1
Force sensors on
• Jumper
off
= normal operation
• Jumper
on
= troubleshooting
JP2
Enable LEDs
JP3
Enables Armed and Exposed
LEDs
SW1
Service switch
•
Norm
= normal operation
•
Serv
= Service Mode
PB1
Reset
Performs hard reset of board when pressed (same as a power
cycle)
* Indicates that LED is always off during normal operation. Jumpers on JP1, JP2, and JP3 are used to force the
sensor/LED condition for troubleshooting.
Description
Home/Default
Limit/Sensed Position
M3x – Pickup drive motor
Home = Up
Limit = Cassette bottom
S3 – Pickup home sensor
Blocked = Pickup home
Unblocked = Pickup not home
S4 – Film contact sensor (also
used for Film out detect)
Blocked = Pickup not contacting film
Unblocked = Pickup contacting film
S2 – Rollback home sensor
Blocked = Rollback home
Unblocked = Rollback not home
Rollback motor
Home = Cartridge closed
Limit = Cartridge open
Feed roller nip open/close motor
Home = Feed roller open
Limit = Feed roller closed
Feed roller nip drive motor
Off
On
Vacuum pump
Off
On
S5 – Feed roller home sensor
Blocked = Feed roller up
Unblocked = Feed roller down
S1 – Cartridge detect sensor
Blocked = Cartridge not present
Unblocked = Cartridge present
S6 – Start-of-page (SOP) sensor
No film detected
Film detected
Exposure transport motor
Off
On
Polygon spinner motor
Lock signal low = Spinner up to speed Lock signal high = Spinner not up to
speed
Film processor motor (continuous) N/A
N/A
S7 – Densitometer film sensor
Unblocked = No film at sensor
Blocked = Film at sensor
Item
Function
Status