Toshiba TDP-P4 Service Manual page 81

Lamp or projector shuts off after running a short amount of time
This is a thermal issue. One of the following conditions most
likely exists:
1. A component in the low voltage power supply or on the
2. The thermal switch is faulty and opens at too low a
TDP-P4 Service Manual
controller ECA is faulty and malfunctions when it gets hot.
temperature. (very rare)
Substitute a good
power supply.
(page 55)
Run the projector long
enough to warm up or
shut down.
Does the
projector run
properly?
Substitute a good
controller ECA.
(page 34)
Run the projector long
enough to warm up or
shut down.
Does the
projector run
properly?
Replace the ballast
(bad thermal switch).
(page 37)
Note
Replace the
Yes
power supply.
No
Replace the
Yes
controller ECA.
No
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