Polaroid SX70 manual a Location & Arrangement of internal parts

When the release button is pressed, a switch S1 closes (Figure 1-11 A and B) and applies operating power to the shutter. As soon as power is applied to the shutter, solenoid #1 is energized and rapidly moves the shutter blades to the closed position.

When the solenoid has reached the end of its stroke (shutter closed, it no longer requires maximum current to hold it at that postion. Switch S4 (located on solenoid #1) closes (CB) and activates an electronic circuit called the POWER DOWN CIRCUIT. This reduces power

Figure 1-11 A Location & Arrangement of internal parts

Figure 1-11 B Operation