Mechanical and Electrical

4

4.1.4 Thermostat (TS1)

To avoid any of the troubles accompanying an excessive rise in the temperature inside the machine caused by a failure of the Cooling Fan to dissipate heat produced by the Projection Lamp, there is a Thermostat installed at the back of the Projection Lamp.

When the ambient temperature of the Projection Lamp exceeds 122°C the Heat-Sensitive Plate expands pushing up the Pusher Pin, which in turn cuts off the current to the Projection Lamp Circuit.

The Circuit is reset by pushing the Reset Pin.

Thermostat

Reset Pin

Pin

Bi-metal

39

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Image 46
Kodak 2400DSV service manual Thermostat TS1