Read Sharp XR-30X (serv.man6) Service Manual online
XR-30S/XR-30X/XG-F210X
5 – 7
NO
Securely insert the
connectors.
connectors.
YES
Check the cooling fan.
NO
Check peripheral circuits of
Q1721.
Q1721.
NO
Check IC1761, IC3581 and
peripheral circuits.
peripheral circuits.
NO
Go to "DMD system check".
Is 3.3 V applied to TL1762?
NO
Check IC1791 and
peripheral circuits.
peripheral circuits.
NO
Check PHOTO SENSOR
PWB.
PWB.
NO
Check IC1701 and
peripheral circuits.
peripheral circuits.
NO
Check IC1762 and
peripheral circuits.
peripheral circuits.
YES
Is 5 V applied to TL1712
with P1703 removed?
with P1703 removed?
NO
Check connection of
FB1710.
FB1710.
NO
Check when the lamp turns off soon after turning on
Have connectors P1703,
P1721, P1722 and P1723
come off or are they
loose?
P1721, P1722 and P1723
come off or are they
loose?
Is each cooling fan
rotating?
rotating?
Is approx. 3 V applied to
TL1721?
TL1721?
YES
Is 12 V applied to TL1761?
YES
Is 2.5 V applied to
TL1763?
TL1763?
YES
Check IC1763 and
peripheral circuits.
peripheral circuits.
NO
Is 5 V applied to TL1712?
YES
Is the signal of 180 Hz
sent to TL1716?(When
vertical frequency of the
input signal is 60 Hz)
sent to TL1716?(When
vertical frequency of the
input signal is 60 Hz)
YES
Is the signal of 180 Hz
sent to TL1706? (When
vertical frequency of the
input signal is 60 Hz)
sent to TL1706? (When
vertical frequency of the
input signal is 60 Hz)
YES
YES
Is 5 V applied to TL1791?
YES
Check the power supply
ballast PWB.
ballast PWB.
YES
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