Sharp Aquos LC 45D40U, Руководство по обслуживанию

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LC-37D40U
LC-45D40U
TROUBLESHOOTING TABLE
(Continued)
LED flashing timing chart for error notification
250ms
1sec
1) Red power LED
Remarks Remarks Remarks
Error type
Power green LED operation (1 cycle)
Error type
Opc green LED operation (1 cycle)
Error type
Opc green 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 flashe Initial communication reception failure Flashes once Time-out setting reception failu 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 cancelling the reset, request for the monitor model No. is not
received.)
→
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 change is not received.)
Basically, communication logs are analyzed by a bus monitor or debug print logs are analyzed.
→
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.
→
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 the unit down or after continuous illumination for 3 minutes.
Main microprocessor detection error (FAN error, 1bitAMP error, etc.
）
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
（
L). UR6V is not applied.
(MONITOR MAX TEMP on process A mode: Change of temperature failure AD value): Thermistor DET_D3V3 (pin 62): Abnormal
（
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.