NO
Go to "Check when the
lamp turns off soon after
turning on".
YES
Securely insert the
connectors.
YES
Replace the lamp.
YES
Securely insert the
connectors.
YES
Check IC3502 and
peripheral circuits. (Refer
to the waveform chart 2.)
NO
Check IC1701 and
peripheral circuits. (Refer
to the waveform chart 1.)
NO
Fully insert the connectors
or replace the harnesses.
NO
Replace the color wheel.
YES
Checking the lamp
light-up
Does the lamp turn on
when the power is turned
Is the lamp tight in the
socket?
Is the discharging sound
(high voltage) heard?
NO
Has the FPC cable to
SC3502 come off or is it
loose?
NO
Is rotating sound of the
color wheel heard?
NO
Is approx. 0.7 V applied to
TL1706?
YES
Replace the lamp.
YES
Have harnesses connected
to CN1712 and CN702 of
the power supply unit come
off or are they loose?
Otherwise are they broken?
YES
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