Sharp LC-60LE810UN Service Manual - Page 71

Basically, debug print logs are analyzed or commu

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4) Communication failure details (Flashes slowly 3 times and flashes fast) Error type Center icon LED operation Initial communication reception failure Flashes fast once H: On L: Off Start-up confirmation reception failure Flashes fast twice H: On L: Off Regular communica- H: On tion failure Flashes fast 3 times Other communication failure Flashes fast 5 times L: Off H: On L: Off 5) Other failure details (Flashes slowly 4 times and flashes fast) Error type Center icon LED operation Monitor temperature failure Flashes fast once H: On L: Off Main failure H: On Flashes fast 3 times L: Off LC-40/46/52/60LE810UN (1st Edition) Note Basically, debug print logs are analyzed or communication logs are analyzed by a bus monitor. 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 failure Start-up reason confirmation from the main CPU cannot be received. (Start-up communication until start-up reason notification command is not received.) → Main CPU start-up failure or monitor microcomputer reception failure Regular communication that is performed at 1 second intervals in the normal operation is interrupted. → Main CPU operation failure or monitor microcomputer reception failure 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 microcomputer reception failure Note Pins are monitor microcomputer pins unless otherwise specified. If the panel temperature is 60°C or more for 15 seconds or more in a row, CAUTION appears on the OSD (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. (MONITOR MAX TEMP on page 23 of the process A: Change of temperature failure AD value): Thermistor Main microcomputer detection error (CPU temperature error, etc.) The details are displayed on page 1 of the process A of the main microcomputer. 6 - 17

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LC-40/46/52/60LE810UN (1st Edition)
6 – 17
4) Communication failure details (Flashes slowly 3 times and flashes fast)
Note
5) Other failure details (Flashes slowly 4 times and flashes fast)
Note
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
Error type
Center icon LED operation
Pins are monitor microcomputer pins unless other-
wise specified.
Monitor temperature
failure
Flashes fast once
H: On
L: Off
If the panel temperature is 60
°
C or more for 15 seconds
or more in a row, CAUTION appears on the OSD
(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.
(MONITOR MAX TEMP on page 23 of the process A:
Change of temperature failure AD value): Thermistor
Main failure
Flashes fast 3 times
H: On
L: Off
Main microcomputer detection error (CPU temperature
error, etc.)
The details are displayed on page 1 of the process A of
the main microcomputer.