Led Error Flashing Timing Chart - Sharp LC-60LE810UN Service Manual

LC-40/46/52/60LE810UN (1st Edition)
LED flashing timing chart at the time of an error
100ms 400ms
1) Slow flashing
Error type
Inverter/ H: On
Lamp failure
Flashes slowly once
L: Off
Power failure H: On
Flashes slowly twice
L: Off
Main CPU to main CPU H: On
communication failure
Flashes slowly 3 times
L: Off
Others H: On
Flashes slowly 4 times
L: Off
2) Inverter/Lamp failure details (Flashes slowly once and flashes fast)
Error type
Lamp failure H: On
Flashes fast once
L: Off
3) Power failure details (Flashes slowly twice and flashes fast)
Error type
PS_ON H: On
AC_DET failure
Flashes fast once
L: Off
SM_POW H: On
Main 13V failure
Flashes fast twice
L: Off
D_POW H: On
Digital 3.3V failure
Flashes fast 3 times
L: Off
PANEL_POW H: On
Panel 12V failure
Flashes fast 5 times
L: Off
1.6sec
Center icon LED operation
Center icon LED operation
Center icon LED operation
6 – 16
Note
Pins are monitor microcomputer pins.
Refer to "Inverter/Lamp failure details". Flashes slowly
and fast by pressing the [MENU] key on the remote con-
trol (refer to 2 below).
Refer to "Power failure details". Flashes slowly and fast
by pressing the [MENU] key on the remote control (refer
to 3 below).
Refer to "Communication failure details". Flashes slowly
and fast by pressing the [MENU] key on the remote con-
trol (refer to 4 below).
Communication line failure or main CPU communication
failure. → Check debug statements for the main CPU.
Refer to "Other failure details". Flashes slowly and fast by
pressing the [MENU] key on the remote control (refer to 5
below).
Note
Pins are monitor microcomputer pins unless other-
wise specified.
ERR_PNL(40pin): Hi failure. Confirmed after 8 consecu-
tive detections at 64msec intervals (detected only when
the backlight is on).
Note that after five detection counts, the lamp cannot be
activated except in the monitor process.
Accumulated counts are cleared to 0 by the setting in the
process A.
Note
Pins are monitor microcomputer pins unless other-
wise specified.
AC_DET(72pin) failure (L).
If error is detected during start-up or operation, the power
is turned on again by interrupt (instantaneous blackout
processing).
DET_13V(38pin) failure (L). Main 13V is not applied.
If error is detected during start-up or operation, the power
is turned on again by polling.
DET_D3V3(36pin) failure (L). Digital 3.3V is not applied.
If error is detected during start-up or operation, the power
is turned on again by polling.
DET_PNL12V(35pin) failure (L). Panel power is not
applied.
Detection is started after turning on the panel power and
receiving command; the power is turned off by polling.