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CHECKING CIRCUIT BOARDS, SENSORS AND ELECTRICAL LOADS
7-4. Checking the input signal at the entrance sensor
Check that the signal from the SRX-101A's entrance sensor is properly sent to the CPU board.
Make sure the power breaker is OFF.
(1)
(2) Using No.3 and No.4 of the DIP switch on the CPU board, select and set the film processing
time. (refer to "6-2-2. DIP Switch Settings", p.55)
(3) Check that JP3 of the connector at the entrance sensor is plugged into JJ3 on the CPU board.
(4) Turn off No.1 of DIP switch (DS1) on the CPU board, and turn on the [Power] breaker. This
allows starting the normal mode.
(5) Insert a film strip into each of entrance sensor to keep the sensor ON. Check that a buzzer
sounds approx. 14 seconds (at 90 sec. process time) after the two film strips are pulled out
from the sensors.
Cycle Time(sec.)
(6) If the buzzer does not sound, check if the buzzer is normal referring to "7-3. Checking the
output to various loads and the input to the operation panel board", p.71. When the
buzzer is proved to be normal, replace the entrance sensor unit.
74
SERVICE MANUAL
Alarm Timing(sec.)
90
after about 14.0
120
6.3
180
5.0
DS1
JJ3
Connect to the entrance
sensor.
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