PN-L803C/80TC3 TROUBLESHOOTING 7 - 5
8. THE RED LED FLASHES (DISPLAY ABNORMALITY IS SET)
No abnormality
OK
Any defect with the 5V Power Supply PWB?
Replace the abnormal part.
Replace the 5V Power Supply PWB.
Replace the abnormal part.
No NG
Abnormality
Abnormality
No abnormality
Any problem with the LED Power Supply PWB?
Replace the LED Power Supply PWB.
Abnormality
Abnormality
NG
Check the connection cable.
To locate the abnormal position, perform a certain
operation or use a certain RS232C command and LAN
command to display the diagnosis result.
- Check the connection cable.
- Check the fuse (Main Power : F2200) or breakage.
- Check the PWB.
Check the Main PWB and the related parts for any
abnormality.
Is there any abnormality in the NG position?
Check the power for abnormality.
- Check the fuses (5V Power : F2100,
12V Power : F2101, 13V Power : F2102,
AMP Power : F2300) for breakage.
- Check the cable connection.
9. THE LED LIGHTS UP IN ORDER OF RED -> GREEN -> RED -> GREEN (DISPLAY
ABNORMALITY IS SET)
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?
To locate the abnormal position, perform a certain
operation or use a certain RS232C command and LAN
command to display the diagnosis result.
No abnormality
- Check the connection cable.
- Check the fuse (Main Power : F2200) or breakage.
- Check the PWB.
Check the Main PWB and the related parts for
any abnormality.
- Check the connection cable.
- Check the PWB.
Check the Key PWB and the related parts for any
abnormality.
Summary of Contents for PN-80TC3
Page 183: ...PN L803C 80TC3 TROUBLESHOOTING 7 10 FUSE POSITION MAIN PWB F2200 F2300 F2102 F2302 F2101 ...
Page 184: ...PN L803C 80TC3 TROUBLESHOOTING 7 11 5V POWER SUPPLY PWB F2100 F2100 ...
Page 191: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 7 3 BLOCK DIAGRAM Block diagram ...
Page 202: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 18 5 PARTS LAYOUT Main PWB TOP ...
Page 203: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 19 BOTTOM ...
Page 204: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 20 LED Power Supply PWB TOP ...
Page 205: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 21 BOTTOM ...
Page 206: ...PN L803C 80TC3 HARDWARE DESCRIPTIONS 8 22 Key PWB TOP BOTTOM ...