LC-60LE925E (serv.man18). Troubleshooting Table - Sharp TV Service Manual (repair manual). Page 18

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LC-46/60LE925E (1st Edition)
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4) Communication failure details (Low-speed blinking: Flashes 3 times + High-speed blinking)
5) Other failure details (Low-speed blinking: Flashes 4 times + High-speed blinking)
Error type
Expression of Central Icon LED
Note: Basically, debug print logs are analyzed or 
          communication logs are analyzed by a bus monitor.
Initial communication 
reception failure
Flashes once
(High speed)
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 failure
Start-up confirmation 
reception failure
Flashes twice 
(High speed)
H: ON
L: OFF
Start-up reason confirmation from the main CPU cannot be 
received.
(Startup communication until start-up reason notification command 
is not received.)
→ Main CPU start-up failure or monitor microprocessor reception
    failure
Regular communica-
tion failure
Flashes 3 times
(High speed)
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 microprocessor 
    reception failure
Other communica-
tion failure
Flashes 5 times
(High speed) 
H: ON
L: OFF
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
Error type
Expression of Central Icon LED
Monitor temperature 
failure
Flashes once 
(High speed)
H: ON
L: OFF
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 12/22 of the adjustment process: 
Change AD value for temperature failure): Thermistor
Main failure
Flashes 3 times 
(High speed)
H: ON
L: OFF
Main microprocessor detection error (CPU temperature error, etc.)
Details are displayed on page 1/22 of the adjustment process for 
the main microprocessor.
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