Electrical Adjustments
SM3226-1 – 10FEB97
5–45
Note
Use unprocessed film supplied by the customer.
[6] Observe the height of the waveforms on the OSCILLOSCOPE first without FILM and then with FILM inserted
between the EMITTER and RECEIVER of the SENSOR. If necessary, see the Component Locator for each
SENSOR location.
• Channel A
– With no film: More than +3.5 V p-p
– With film: Less than +1.5 V p-p
• Channel B
– With no film: 0 Vdc
– With film: 5 Vdc
8-10 ms
Channel A
Channel B
PH1 (-2,-3)
3.5 - 4.0 Vp-p
0 Vdc
PHT1 (-2,-3)
NO FILM PRESENT
0V
H129_2714BC
Analog output of
Film Jam Sensors
with no Film Present
TTL Logic level Low (0 Volts)
Channel A
Channel B
PH1 (-2,-3)
< 1.5 Vp-p
~ 5 Vdc
PHT1 (-2,-3)
FILM PRESENT
Analog output of
Film Jam Sensors
with Film Present
TTH Logic Level High (5 Volts)
0V
8-10 ms
5V
H129_2715BC
