Read Sharp XV-Z200E (serv.man13) Service Manual online
39
XV-Z200U/E, XV-Z201E
DT-300
DT-300
»
Formatter Unit Troubleshooting
Adjustment by "Process
Menu"
Menu"
→
"DLP"
→
"INDEX". The failure state
remains unchanged.
remains unchanged.
Display in trouble
Screen with spectral
colors
Color production of R,
G and B is not correct.
colors
Color production of R,
G and B is not correct.
Black screen
Are the sockets SC9101
and SC9001 connected
correctly?
and SC9001 connected
correctly?
Is the socket SC9001
connected correctly?
connected correctly?
Are the contact terminals
of the DMD, formatter
PWB and cLGA dirty?
of the DMD, formatter
PWB and cLGA dirty?
Is the flexible cable of
SC9001 connected
correctly?
SC9001 connected
correctly?
Does the color wheel
turn?
turn?
Does P9402 have the
correct motor drive
voltage waveform?
correct motor drive
voltage waveform?
Is the waveform at pins
(18) and (20) of IC9202
the 400MHz sine wave?
(18) and (20) of IC9202
the 400MHz sine wave?
IC9201, IC9101, X9101
or their peripheral
circuits are faulty.
or their peripheral
circuits are faulty.
Does the pin (3) of
IC9201 have the correct
voltage +1.8V?
IC9201 have the correct
voltage +1.8V?
Are the signals fed to the
terminating resistance
(39W) of RDRAM
(IC9203)?(DQA8 and
DQB8 are unused.)
terminating resistance
(39W) of RDRAM
(IC9203)?(DQA8 and
DQB8 are unused.)
Re-assemble the DMD,
the optical mechanism
and the formatter unit.
the optical mechanism
and the formatter unit.
Do the colors return to
correct colors when the
process menu is
entered?
correct colors when the
process menu is
entered?
Poor adjustment should
be a likely cause.
Perform readjustment
according to the
adjustment method.
be a likely cause.
Perform readjustment
according to the
adjustment method.
Color wheel is faulty.
IC2002 is faulty.
IC9401 or its peripheral
circuits are faulty.
circuits are faulty.
Is the lamp lit on?
Check the color wheel
sensor unit.
sensor unit.
Is the connector of
P2002 connected
P2002 connected
Is the correct voltage is
supplied to the
connector CN1001?
supplied to the
connector CN1001?
Check the ballast unit
and the power unit.
and the power unit.
Does pin (2) of P9102
have 150Hz pulse signal
in no-signal state?
have 150Hz pulse signal
in no-signal state?
Does pin (9) of IC9301
have the correct voltage
(+23~+26V)?
have the correct voltage
(+23~+26V)?
Does pin (1) of the main
PWB P2002 have 5V or
300Hz pulse wave?
PWB P2002 have 5V or
300Hz pulse wave?
IC9301 or its peripheral
circuits are faulty.
circuits are faulty.
Miscellaneous
Equally spaced white or
black vertical stripes
Black horizontal band
black vertical stripes
Black horizontal band
IC9202, IC9203, IC9101
or their peripheral
circuits are faulty.
or their peripheral
circuits are faulty.
IC2007, IC2002 or their
peripheral circuits are
faulty.
peripheral circuits are
faulty.
Does pin (13) of IC9301
have the correct voltage
(-26V)?
have the correct voltage
(-26V)?
Does pin (49) of IC9301
have the correct voltage
(+7V)?
have the correct voltage
(+7V)?
Is the fan rotating?
Check the fan circuit.
Double-check DMD and
cLGA units.
cLGA units.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
