Sharp AQUOS LC-60C6400U Wartungshandbuch PDF herunterladen (Seite 56)

LC-52/60/70LE640U,C6400U (1st Edition)

6 – 3

LED flashing timing chart at the time of an error

1) Inverter/Lamp failure details (Flashes slowly once and flashes fast) Note

2) Power failure details (Flashes slowly twice and flashes fast) Note

3) Communication failure details (Flashes slowly 3 times and flashes fast) Note

Error type Center icon LED operation

Pins are monitor microcomputer pins unless other-

wise specified.

Lamp failure

Flashes fast once

H: On

L: Off

ERR_PNL (19pin): 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.

Error type Center icon LED operation

Pins are monitor microcomputer pins unless other-

wise specified.

PS_ON

AC_DET failure

Flashes fast once

H: On

L: Off

AC_DET (28pin) failure (L).

If error is detected during start-up or operation by inter-

rupt, the power is turned on again.

SM_POW

Main 13V failure

Flashes fast twice

H: On

L: Off

DET_13V (32pin) failure (L). Main 13V is not applied.

If error is detected during start-up or operation, the power

is turned on again by polling.

D_POW

Digital 3.3V failure

Flashes fast 3 times

H: On

L: Off

DET_D3V3 (33pin) 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.

PANEL_POW

Panel 12V failure

Flashes fast 5 times

H: On

L: Off

DET_PNL12V (34pin) 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.

Error type Center icon LED operation

Basically, debug print logs are analyzed or commu-

nication logs are analyzed by a bus monitor.

Initial communica-

tion reception failure

Flashes fast once

H: On

L: Off

Initial communication from the main CPU is not

received. (Request for the monitor model No. is not

received.)

→ Communication line failure or main CPU start-up fail-

ure

Start-up confirma-

tion reception failure

Flashes fast twice

H: On

L: Off

Start-up reason confirmation from the main CPU cannot

be received. (Start-up communication until start-up rea-

son notification command is not received.)

→ Main CPU start-up failure or monitor microcomputer

reception failure

Regular communica-

tion failure

Flashes fast 3 times

H: On

L: Off

Regular communication that is performed at 1 second

intervals in the normal operation is interrupted.

→ Main CPU operation failure or monitor microcom-

puter reception failure

Other communica-

tion failure

Flashes fast 5 times

H: On

L: Off

When a request (PM_REQ=H) is sent from the main

microcomputer, the request command is not output

from the main CPU, etc.

→ Main CPU operation failure or monitor microcom-

puter reception failure

100ms 400ms 1.6sec

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