Sharp XV-Z200U Service Manual page 36

XV-Z200U/E, XV-Z201E
DT-300
» Formatter Unit Troubleshooting
Screen with spectral
colors
Color production of R,
G and B is not correct.
Adjustment by "Process
Menu" →"DLP" →
"INDEX". The failure state
remains unchanged.
Yes
Is the flexible cable of
SC9001 connected
correctly?
Yes
IC2002 is faulty.
No
Do the colors return to
correct colors when the
process menu is
entered?
Yes
Poor adjustment should
be a likely cause.
Perform readjustment
according to the
adjustment method.
IC9401 or its peripheral
circuits are faulty.
No
Check the color wheel
sensor unit.
No
No
IC9301 or its peripheral
circuits are faulty.
No
Display in trouble
Black screen
Are the sockets P9101
Is the socket SC9001
and SC9001 connected
connected correctly?
correctly?
Yes
Does the pin (3) of
Yes
Does the color wheel
IC9201 have the correct
turn?
voltage +1.8V?
No
Are the signals fed to the
terminating resistance
(39W) of RDRAM
(IC9203)?(DQA8 and
DQB8 are unused.)
Does P9402 have the Is the waveform at pins
correct motor drive (18) and (20) of IC9202
voltage waveform? the 400MHz sine wave?
Yes
IC9203, IC9101 or their
Color wheel is faulty. peripheral circuits are
faulty.
No
Is the lamp lit on?
Yes
Does pin (1) of the main
Does pin (2) of P9102
have 150Hz pulse signal
PWB P2002 have 5V or
in no-signal state?
300Hz pulse wave?
Yes
Is the correct voltage is
Does pin (9) of IC9301
have the correct voltage
supplied to the
(+23~+26V)?
connector CN1001?
Yes
Does pin (13) of IC9301
Is the fan rotating?
have the correct voltage
(-26V)?
Yes
Does pin (49) of IC9301
IC2007, IC2002 or their
have the correct voltage
peripheral circuits are
(+7V)?
faulty.
Yes
Double-check DMD and
cLGA units.
36
Equally spaced white or
black vertical stripes
Miscellaneous
Black horizontal band
Are the contact terminals
of the DMD, formatter
PWB and cLGA dirty?
Yes
Re-assemble the DMD,
the optical mechanism
and the formatter unit.
Yes
Yes
No
IC9202, IC9101, X9101
or their peripheral
circuits are faulty.
Yes
No
Is the connector of
P2002 connected
Yes
No
Check the ballast unit
and the power unit.
Yes
No
Check the fan circuit.
Yes