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XV-Z3000
DT-500
Check when the lamp turns
off soon after turning on
Have connectors P1702,
P1721, P1722, P1723 and
P1724 come off or are they
loose?
NO
Is each cooling fan
rotating?
YES
Is approx. 3 V applied to
TL1712?
YES
Is 12 V applied to TL1709?
YES
Is 2.5 V applied to
TL1706?
YES
Is 5 V applied to TL1708?
YES
Is 5 V applied to TL1726?
YES
Is the signal of 180 Hz
sent to TL1727?(When
vertical frequency of the
input signal is 60 Hz)
YES
Is the signal of 180 Hz
sent to TL1740? (When
vertical frequency of the
input signal is 60 Hz)
YES
Check the power supply
ballast PWB.
YES
Securely insert the
connectors.
NO
Check the cooling fan.
NO
Check peripheral circuits of
Q1714.
NO
Check IC1712, IC6001 and
peripheral circuits.
NO
Is 3.3 V applied to TL1704?
NO
Check IC1704 and
peripheral circuits.
NO
Check IC1711 and
peripheral circuits.
NO
Is 5 V applied to TL1726
with P1702 removed?
YES
NO
Check PHOTO SENSOR
PWB.
NO
Check IC1701 and
peripheral circuits.
34
Go to "DMD system check".
YES
Check IC1706 and
peripheral circuits.
NO
Check connection of
FB1716.
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