Electrical Adjustments
SM3226-1 – 10FEB97
5–43
Output Voltage for Receivers PT1, PT2, and PT3
This procedure is done to ensure the necessary output voltages are correct for the DRIVER BOARD to convert to a
TTL level used at the SEQUENCE BOARD. It will be necessary to check this output when changing film
manufacturers, replacing sensors and/or DRIVER BOARD.
To Check:
[1] Connect the Channel A and the Channel B GROUND CLIPS to CPG5.
[2] Connect the Channel A OSCILLOSCOPE PROBE to the correct TEST POINT:
Note
This gives the analog output of each FILM JAM SENSOR.
• PH2 for the SLOW SCAN FILM SENSOR
• PH3 for the FILM PROCESSOR ADAPTER FILM SENSOR
• PH1 for the TRANSPORT GUIDE PLATE FILM SENSOR
[3] Set the Time Base to 2 ms/division.
[4] Set the voltage to 1 volt/division.
[5] Connect the Channel B OSCILLOSCOPE PROBE to the correct TEST POINT:
Note
This shows the TTL levels for each FILM JAM SENSOR as converted by the DRIVER BOARD.
• PHT2 for the SLOW SCAN FILM SENSOR
• PHT3 for the FILM PROCESSOR ADAPTER FILM SENSOR
• PHT1 for the TRANSPORT GUIDE PLATE FILM SENSOR
