Read Sharp PN-S655 (serv.man3) Service Manual online
PN-S655
TROUBLESHOOTING
5 – 3
7. The red LED blinks (When setting abnormal indication)
Abnormality
No abnormality
Replace the abnormal part.
Replace the abnormal part.
No NG
Abnormality
Abnormality
NG
Is there any abnormality in the NG position?
Check the power for abnormality
.
Check the fuse for breakage.
Check the cable connection.
Check the cable connection.
Check the key and the related parts for any abnormality.
Check the connection cable.
Check the key PWB.
Check the key PWB.
Check the I/F PWB 1 for any abnormality.
Check the connection cable.
Check the fuse for breakage.
Check the PWB.
Check the fuse for breakage.
Check the PWB.
To locate the abnormal position, perform a certain
operation or use a certain RS232C command and LAN
command to display the diagnosis result.
operation or use a certain RS232C command and LAN
command to display the diagnosis result.
8. The LED lights up in order of red
3 green 3 red 3 green. (When setting abnormal indication)
Abnormality
No abnormality
Replace the abnormal part.
Replace the abnormal part.
Replace the abnormal part.
No NG
Abnormality
Abnormality
NG
Is there any abnormality in the NG position?
Is the unit properly installed?
Is the unit properly installed?
Check the key and the related parts for any abnormality.
Check the connection cable.
Check the key PWB.
Check the key PWB.
Check the I/F PWB 1 for any abnormality.
Check the connection cable.
Check the fuse for breakage.
Check the PWB.
Check the fuse for breakage.
Check the PWB.
To locate the abnormal position, perform a certain
operation or use a certain RS232C command and LAN
command to display the diagnosis result.
operation or use a certain RS232C command and LAN
command to display the diagnosis result.
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