Ask Proxima C170 Manual de servicio descargar pdf (Pagina 10)

Nacho Family Service Manual 10

LED repeats 5 flash sequence

Check the thermal switch on the lamp housing. Measure the resistance at the switch

(page 19). If the resistance is infinity (open), the thermal switch is bad.

Projector shuts down after detecting high temperature

condition. LED flashes in repeated five-flash sequence.

Replace controller ECA.

(page 40)

Substitute a good power supply and

run projector long enough to know if

that is the problem.

Yes

Is the thermal

switch good?

Replace the exhaust fan

assembly. The thermal switch

is part of the assembly.

(page 37)

Solve the

problem?

Run the projector long enough to

confirm the problem issolved.

Repeat the diagnosis process.

Yes

Verify that the two exhaust fans are

operating. These fans are not sensed.

(page 20)

High temperature shutdown

LCD Messages

Are both fans

turning?

Remove the top case (page 31), then check the fan

voltages (page 21). If the voltages are good, replace

the exhaust fan assembly (page 37). If the voltages

are bad, replace the controller ECA. (page 44)

Yes

Run the projector long enough to

confirm the problem issolved.

Repeat the diagnosis process.

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Ask Proxima C170 Manual de servicio Pagina 10