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December 2002 TOSHIBA TEC 4 - 55 e-STUDIO160/200/250 TROUBLESHOOTING
4.1.18 Scanner related service call
F11 Scanner I/F error
1. Check if each connector between the scanner control PWA (CN6) and the main PWA (CN8)
is disconnected.
2. Check if each connector pin is removed or the harness is broken.
3. Check if any conductor pattern on the scanner control and main PWA is open- or short-
circuited.
4. Replace the scanner control PWA.
5. Replace the main PWA.
F12 Scanner unit program download write error
F13 Scanner unit program download sector error
1. Check if the recovery ROM PWA is firmly connected to the scanner control PWA (CN3).
2. Check if the connector pin is removed.
3. Check if any conductor pattern on the scanner control PWA is open- or short-circuited.
4. Replace the scanner control PWA.
F14 Scanner unit FROM error
Was the main PWA replaced?
Download the scanner total count value into the main PWA in the setting mode (08-
388).
Was the scanner unit or scanner control PWA replaced?
Download the scanner total counter value of the main PWA into the scanner con-
trol PWA in the setting mode (08-389).
1. Check if each connector between the scanner control PWA (CN6) and the main PWA (CN8)
is disconnected.
2. Check if each connector pin is removed or the harness is broken.
3. Check if any conductor pattern on the scanner control and main PWA is open- or short-
circuited.
4. Replace the scanner control PWA.
5. Replace the main PWA.
YES
NO
YES
NO