Hello Vincenzo,
i think you have started from the oppossite side...
Check your PSU first for 24V if available...
Hello Vincenzo,
i think you have started from the oppossite side...
Check your PSU first for 24V if available...
Had the same problem, u got to replace polygon motor and repair/replace bicu in the same time.
in my case resistor "R157" on the BICU was dead. Just replaced the resisor and machine works good.
glad it's fixed - just a tip from running into this; you can web into the machine using the WIM (IP address thru browser) and it will show the SC code. Usually related to polygon mirror motor (SC202)
Brooooooo YOU ARE MY HERO TODAY!!!!
I checked R157 and its a 0 (Zero) Ohm resistor and it is open.
I will replace it with another on or maybe with an short.
After replace the 0 Ohm R157 the 24 volts are back on the polygon laser drive
but it smoke the R157 again... and this time the polygon laser drive is melted down.
I buy a new polygon laser drive and do the R157 again.
Last edited by rymannphilippe; 12-03-2018 at 06:45 PM.
[Symptom]
The power cannot be turned ON (The main power lamp is lit.). SC202, SC203, or SC204 is displayed. The problem is not fixed by replacing the polygon motor.
Note:
When turning the main power ON, the LCD display on the operation panel and the power lamp does not turn on. (The main power lamp is only lit.) In addition, "Cover Open" does not appear and the machine does not start initializing.
Or, SC202, SC203, or SC204 error is displayed.
The SC errors are not fixed by replacing the polygon motor.
[Cause]
The fuse on the PSU blows.
Note:
When the polygon motor is damaged (burned), the 24V fuse blows to protect the PSU from the excess-current.
The initialization does not start because 24V is not supplied to the MB.
[Solution]
Replace the fuse on the PSU. (6.3A)
Sigh....7 yr old thread
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