Sharp Aquos LC32D41U, Service Manual

Page: 42 / 148

LC-32D41U/LC-32M41U/LC-40C32U
6 – 11
LED
flashing
timing
chart
for
error
notification
250ms
1sec
1)
Red
power
LED
Remarks Remarks
Remarks
Error
type
Power
red
LED
operation
(1
cycle)
Error
type
Power
red
LED
operation
(1
cycle)
Error
type
Power
red
LED
operation
(1
cycle)
Pins
are
monitor
microprocessor
pins.
H:
On
Lamp
failure
Flashes
once:
Fast
L:
Off
H:
On
L:
Off
H:
On
L:
Off
H:
On
L:
Off
H:
On
L:
Off
H:
On
L:
Off
H:
On
L:
Off
H:
On
L:
Off
H:
On
L:
Off
H:
On
L:
Off
H:
On
L:
Off
H:
On
L:
Off
H:
On
L:
Off
H:
On
L:
Off
Refer
to
"Power
failure
details".
Power
failure
Flashes
twice
communication
failure
Refer
to
"Communication
failure
details".
with
main
CPU
Communication
line
failure
or
main
CPU
communication
failure
>
Check
debug
statements
for
the
main
CPU.
Flashes
3
times
Vsync Trident
failure
Flashes
4
times
Monitor
temperature
failure
Flashes
5
times
2)
Power
failure
details
(Power
LED
flashes
twice
and
OPC
LED
flashes)
Pins
are
monitor
microprocessor
pins
unless
otherwise
specified.
13V/UR10V
failure
Flashes
once
Main
3.3V
failure
Flashes
twice
UR6V
failure
Flashes
3
times
Digital
3.3V
failure
Flashes
4
times
Panel
5V
failure
Flashes
5
times
Main
failure
Flashes
7
times
3)
Communication
failure
details
(Power
LED
flashes
3
times
and
OPC
LED
flash
Initial
communication
reception
failure
Flashes
once
Time-out
setting
reception
failure
Start-up
confirmation
reception
failure
Flashes
twice
Regular
communication
failure
Flashes
3
times
The
details
are
displayed
in
"ERROR
STANDBY
CAUSE"
on
page
1
of
process
A
mode
for
the
main
microprocessor.
Initial
communication
from
the
main
CPU
is
not
received.
(After
canceling
the
reset,
request
for
the
monitor
model
No.
is
not
received.)
ψ
Communication
line
failure
or
main
CPU
start-up
failure
Time-out
setting
and
start-up
mode
change
cannot
be
received
from
the
main
CPU.
(Start-up
communication
until
time-out
setting
and
start-up
mode
cha
nge
is
not
received.)
Basically,
communication
logs
are
analyzed
by
a
bus
monitor
or
debug
print
logs
are
analyzed.
ψ
Main
CPU
start-up
failure
or
monitor
microprocessor's
reception
failure
Regular
communication
that
is
performed
at
1
second
intervals
in
the
normal
operation
is
interrupted.
ψ
Main
CPU
operation
failure
or
monitor
microprocessor's
reception
failure
L_FL_ERR
(pin
73):
Abnormal
L.
Confirmed
after
5
consecutive
detections
at
1
second
intervals
(detected
only
when
the
backlight
is
on).
Note
that
after
five
detection
counts,
the
lamp
cannot
be
activated
except
in
the
monitoring
process.
(For
the
first
time,
only
the
inverter
is
reset,
and
error
OFF
is
not
activated)
Accumulated
counts
are
cleared
to
0
when
the
corresponding
setting
in
the
process
A
is
made,
when
the
power
is
turned
on
with
[CH_DOWN]
and
[VOL_UP]
on
th
e
unit
down
or
after
continuous
illumination
for
3
minutes.
Main
microprocessor
detection
error
(FAN
error,
1bitAMP
error,
etc.
㧕
If
error
is
detected
during
operation,
error
standby
is
activated
by
polling.
DET_PNL5V
(pin
57):
Abnormal
(L).
Panel
power
is
not
applied.
If
error
is
detected
during
operation,
error
standby
is
activated
by
polling.
EU_POW PS_ON PANEL_POW D_POW D_POW
If
error
is
detected
during
operation,
error
standby
is
activated
by
polling.
DET_6V
(pin
27):
Abnormal
㧔
L).
UR6V
is
not
applied.
(MONITOR
MAX
TEMP
on
process
A
mode:
Change
of
temperature
failure
AD
value):
Thermistor
DET_D3V3
(pin
62):
Abnormal
㧔
L).
Digital
3.3V
is
not
applied.
If
error
is
detected
during
operation,
error
standby
is
activated
by
polling.
AC_DET
(pin
31):
Abnormal
(L),
DET_10V
(pin
63).
Main
converter
13V/UR10V
is
not
applied.
If
error
is
detected
during
operation,
the
power
is
turned
on
again
by
interrupt
handling
(instantaneous
blackout
processing).
DET_3V3
(pin
64):
Abnormal
(L).
Main
power
3.3V
is
not
applied.
VSYNC
(pin
48)
failure
(uninput).
Trident_IC
operation
failure.
Detected
during
operation
(interruption)
If
the
panel
temperature
is
60°C
or
more
for
15
seconds
or
more
in
a
row,
CAUTION
appears
on
the
OSD
of
AVC
(flashes
in
red
in
the
lower
right
screen).
If
the
panel
temperature
is
60°C
or
more
for
25
seconds
or
more
in
a
row,
error
standby
is
activated.