LC-32XL8E (serv.man4). Troubleshooting Table - Sharp TV Service Manual (repair manual). Page 22

LC-32XL8E/S/RU, LC-37XL8E/S/RU

4 – 22

2) Power failure details(Power LED flashes twice and OPC LED flashes)

Error type

OPC LED operation (1 cycle)

Description

PS_ON

H: On 

AC_DET(IC2002_16pin): Abnormal (L). Main converter 12V is not 
applied.

12V failure

If error is detected during operation, the power is turned on again 
by interrupt handling.

Flashes once

L: Off

PS_ON

H: On 

DET_10V(IC2002_57pin): Abnormal (L). Main power UR13V is 
not applied.

10V failure

If error is detected during start-up or operation, the power is 
turned on again by polling.

Flashes 3 times

L: Off

D_POW

H: On

DET_D3V3(IC2002_59pin): Abnormal (L). D3.3V is not applied.

Digital 3.3V failure

If error is detected during start-up or operation, the power is 
turned on again by polling.

Flashes 4 times

L: Off

PANEL_POW

H: On

DET_PNL12V(IC2002_58pin): Abnormal (L). Panel power is not 
applied.

Panel 12V failure

If error is detected during start-up or operation, the power is 
turned on again by polling.

Flashes 5 times

L: Off

Main failure

H: On

Main microprocessor detection error
The details are displayed on page 1 of process adjustment for the 
main microprocessor (IC8101).

Flashes 7 times

L: Off

3) Communication failure details(Power LED flashes 3 times and OPC LED flashes) 

Error type

OPC LED operation (1 cycle)

Description

Initial communica-
tion reception failure

H: On

Initial communication from the main CPU (IC8101) is not received.
→Communication line failure or main CPU (IC8101) start-up fail-
ure

Flashes once

L: Off

Start-up confirma-
tion reception failure

H: On

Start-up reason confirmation from the main CP(IC8101) is not 
received.
→Main CPU (IC8101) start-up failure or monitor microprocessor 
(IC2002) reception failure

Flashes twice

L: Off

Regular communi-
cation failure

H: On

Regular communication that is performed at 1 second intervals in 
the normal operation is interrupted.
→Main CPU (IC8101) operation failure or monitor microprocessor 
(IC2002) reception failure

Flashes 3 times

L: Off

Restart failure

H: On

When restarted by a software with the standby off/on, restart com-
pletion notification is not received.
→Main CPU (IC8101)restart failure to monitor microprocessor 
(IC2002) reception failure

Flashes 4 times

L: Off