Hi Guys, I have a real nasty one here. We have an MX2301 that, when it boots up, the screen stays dim with the Sharp logo on it with the twirling icons. The problem is, it wont get past this screen. We have changed;-the controller (including HDD)-the motherboard-the pcu-all DIMMs, memory modules and eproms-the AC and DC boards-the HV boards-the fornt door switch-unplugged all fans and motors-diconnected all peripherals-removed all units (dev, drum, toner,transfer,fuser)..and still the same.The only difference we get is if we disconnect the pcu and power it up. The screen stays dim, but it eventually goes past the boot screen to the home screen, but gives an error E7-90.Any ideas?
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