Toshiba e-STUDIO 2555C Service Manual page 690

Replace parts
LGC board
FIL board
IH board
Power supply
[C473] Surge pressure detection / power and voltage upper limit abnormality
[C474] Power and voltage lower limit abnormality
Classification
Fuser unit related service call
Check item
Power supply
Fuser unit
IH board
Status counter
Replace parts
Power supply
IH board
[C475] IH power voltage abnormality or IH initial abnormality
Classification
Fuser unit related service call
Check item
Power supply
Side cover interlock switch
Fuser unit
LGC board
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
The power voltage supplied to the IH board is higher than
upper limit (C473)
The power voltage supplied to the IH board is lower than
upper limit (C474)
• Check if the power voltage is normal.(Is the voltage during
the operation ±10% of the rated voltage?)
• Drawer connector check
• Thermostat check
• Unit check
• Connector check (CN357, CN561, CN562, CN563)
• Board check
1. [0], [8] Power ON.
2. Key in "2002", then press [START].
3. Change the current status counter value (08-2002) "13" or
"16" to "0".
4. Turn the power OFF and then back ON. Make sure that
the equipment enters the normal ready state.
IH power supply abnormality at door open
• Check if the power voltage is normal.(Is the voltage during
the operation ±10% of the rated voltage?)
• Connector check (J1008, CN354)
• Harness check
• Drawer connector check
• Thermostat check
• Unit check
• Connector check (CN357)
• Board check
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Remarks
Error item
Measures
Remarks
Error item
Measures