Check The Thermal Switch - Toshiba TDP-MT8 Service Manual

Check the Thermal Switch

The thermal switch is designed to open when the temperature inside the projector gets too high. When
the switch opens, the power supply shuts down, turning the projector off.
When the projector shuts down after operating for a few minutes or when the lamp fails to strike after
repeated attempts at startup, you need to check the thermal switch operation. First, power up the
projector with the top off (page 86). Let the projector run until it shuts down. Measure the resistance at the
switch. If the resistance is infinity (Ω), replace the safety switch assembly, which includes the thermal
switch.
Go to remove and replace the safety switch assembly on page 55.
TDP-MT8 Service Guide 91