Communication Failure Details; Other Failure Details - Sharp LC-60LE740E Service Manual

LC-60/70LE740E/RU,741E/S,743E,60LE840E/RU,841E/S,843E,80LE645E/RU,646E/S,648E
4) Communication failure details (Low-speed blinking: Flashes 3 times + High-speed blinking)
Error type Expression of Central Icon LED
Initial communication H: ON
reception failure
Flashes once
L: OFF
(High speed)
Start-up confirmation H: ON
reception failure
Flashes twice
L: OFF
(High speed)
Regular communica- H: ON
tion failure
L: OFF
Flashes 3 times
(High speed)
Other communica- H: ON
tion failure
L: OFF
Flashes 5 times
(High speed)
5) Other failure details (Low-speed blinking: Flashes 4 times + High-speed blinking)
Error type Expression of Central Icon LED
Monitor temperature H: ON
failure
L: OFF
Flashes once
(High speed)
Main failure H: ON
Flashes 3 times
L: OFF
(High speed)
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.
(Startup communication until start-up reason notification com-
mand is not received.)
→ Main CPU start-up failure or monitor microprocessor reception
failure.
Regular communication that is performed at 1 second intervals in
the normal operation is interrupted.
→ Main CPU operation failure or monitor microprocessor
reception failure.
When a request (PM_REQ=H) is sent from the main microproces-
sor, the request command is not output from the main CPU, etc.
→ Main CPU operation failure or monitor microprocessor
reception failure.
Note: Pins are monitor microprocessor pins unless otherwise
specified (IC2001).
If the panel temperature is 60°C or more for 15s 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 25s or more in a row,
error standby is activated.
(MONITOR MAX TEMP on page (12/21) of the adjustment pro-
cess: Change AD value for temperature failure): Thermistor
Main microprocessor detection error (CPU temperature error, etc.)
Details are displayed on page (1/21) of the adjustment process for
the main microprocessor.
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