operation panel failed

[gabby]

i have a bizhub 250 on field, when first turn on the main switch and then the sub power switch, there is no display on panel(lcd), but the machine can initialize, fans are moving, fusing unit is hot, numeric keys does not function also.... i have re seated already all the connectors on operation panel and mfbs board...

Can anyone please give me more advice...... thanks in advance..

[mo0651]

Yep, we've had a rash of them fail. Getting old enough.

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[jackson007]

cheak all conectors on i p board

[gabby]

i have already checked and re seat all connectors on mfbs and bcrs, but no good, i have tested the operation panel to the other good machine, the control panel displayed and keys are working... so there is nothing wrong with the opration panel...

[EarthKmTech]

mfbs board is stuffed, or the ram.

the engine is alive because the pwb-a controls those basic functions, not the mfbs.

expensive repair either way, unless you have a parts machine.