Low-Speed Blinking; Lamp Failure Details; Power Failure Details - Sharp LC-60LE740E Service Manual

LC-60/70LE740E/RU,741E/S,743E,60LE840E/RU,841E/S,843E,80LE645E/RU,646E/S,648E
LED flashing timing chart at the time of the error
100ms

1) Low-speed blinking

Error type Expression of Central Icon LED
Lamp failure H: ON
low-speed blinking
Flashes once
L: OFF
Power failure H: ON
low-speed blinking
Flashes twice
L: OFF
Communication H: ON
failure with main CPU
low-speed blinking
L: OFF
Flashes 3 times
Others H: ON
low-speed blinking
Flashes 4 times
L: OFF
2) Lamp failure details (Low-speed blinking: Flashes once + High-speed blinking)
Error type Expression of Central Icon LED
Lamp failure H: ON
Flashes once
L: OFF
(High speed)
3) Power failure details (Low-speed blinking: Flashes twice + High-speed blinking)
Error type Expression of Central Icon LED
PS_ON H: ON
AC_DET failure
Flashes once
L: OFF
(High speed)
SM_POW H: ON
Main 13V failure
Flashes twice
L: OFF
(High speed)
D_POW H: ON
Digital 3.3V failure
Flashes 3 times
L: OFF
(High speed)
PANEL_POW H: ON
Panel 12V failure
Flashes 5 times
L: OFF
(High speed)
400ms 1.6sec
Refer to "Lamp failure details".
LOW/High blinking by pressing the [MENU] key on the remote
control.
Refer to "Power failure details".
LOW/High blinking by pressing the [MENU] key on the remote
control.
Refer to "Communication failure details".
LOW/High blinking by pressing the [MENU] key on the remote
control.
Communication line failure or main CPU communication failure.
Refer to "Other failure details".
LOW/High blinking by pressing the [MENU] key on the remote
control.
Note: Pins are monitor microprocessor pins unless otherwise
specified (IC2001).
LAMP_ERR (19pin): Abnormal H.
Confirmed after 8 consecutive detections at 64ms intervals
(detected only when the backlight is on).
NOTE: After 5 detection counts, the lamp cannot be activated
except in the monitoring process.
To confirm the problem, "Lamp Error detection off-mode"
is prepared.
This mode compulsorily starts the set disregarding the
count.
Please refer to [7. Lamp Error detection (ADJUSTMENT
PROCEDURE)]
Note: Pins are monitor microprocessor pins unless otherwise
specified (IC2001).
AC_DET (28pin): Abnormal (L).
If error is detected during start-up or operation, the power is turned
on again by interrupt handling (instantaneous blackout process-
ing).
DET_13V (32pin): Abnormal (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 (33pin): abnormal (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 (34pin): abnormal (L). DET_PNL12V is not applied.
Detection starts after receiving command from Panel Power ON.
The power is turned off by polling.
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