Sharp MXB451PZ
Troubleshooting. LED status and errors of MFPC PWB
LED lighting status on PWB indicates whether PWB is correctly activated or not.
If PWB is correctly activated, D82 (Status LED) is blinking at 1s interval.
If D82 (Status LED) is blinking or off even though MFP is not in Energy Save mode or the power is not turned off, PWB may have some trouble or it may not be activated correctly.
For other LEDs, please see the table below:
Ref | Purpose | Normal condition | Energy Save mode | Power-OFF | |||||
---|---|---|---|---|---|---|---|---|---|
From Power-ON to machine ready | Correctly activated | ||||||||
D27 | Power distribution check of 24V line | ● | ● | ○ | ○ | ||||
D28 | Power distribution check of 3.3VN line | ● | ● | ○ | ○ | ||||
D29 | Power distribution check of 5VN line | ● | ● | ○ | ○ | ||||
D82 | Status LED | ● | ⇒ | ○ | ⇒ | ○ | ● ⇒ ○ | ○ | ○ |
D98 | ○ | ● | ○ | ● | ○ | ○ | |||
D99 | ○ | ○ | ● | ● | ○ | ○ |