Read Panasonic PT-EX12KU / PT-EX12KE Service Manual online
-11-
Circuit Protections
There are the thermal fuses (SW903, SW904) inside of the projector to de-
tect the internal temperature rising abnormally. When the internal tempera-
ture around lamps reaches near 128˚C, the thermal fuse will open to cut off
the power supply to the lamp power circuit.
If one of the thermal fuses opens, the projector cannot turn on the lamps. If
the <STANDBY> indicator is lighting and others are blinking, one of the ther-
mal fuses may be opened. Thermal fuse replacement is required. The re-
placement of the thermal fuses must be done with a set of 2 fuses at once.
tect the internal temperature rising abnormally. When the internal tempera-
ture around lamps reaches near 128˚C, the thermal fuse will open to cut off
the power supply to the lamp power circuit.
If one of the thermal fuses opens, the projector cannot turn on the lamps. If
the <STANDBY> indicator is lighting and others are blinking, one of the ther-
mal fuses may be opened. Thermal fuse replacement is required. The re-
placement of the thermal fuses must be done with a set of 2 fuses at once.
Thermal fuses (SW903, SW904)
SW903
SW904
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