E-mu Emulator Sampler User Forum for the EIII EII EI and EIII XP

General Category => EII Technical Issues / Tips => Topic started by: Emu276 on March 27, 2018, 11:55:18 AM



Title: What causes LCD to show solid blocks, then after power cycle OK?
Post by: Emu276 on March 27, 2018, 11:55:18 AM
Many times when I power on my Emu II+HD the top row of the LCD is solid blocks, but the machine proceeds to boot OK (just no display). If I power cycle the instrument, it then displays correctly. However, it sometimes takes 2 or 3 power cycles to restore the proper display, and it does not seem to matter if the machine is cold or hot.

Is this most likely a failing IC in the display circuitry, CPU RAM, Boot or Scanner ROMs, or something else?

Any tips would be appreciated.

Thanks!
Howie




Title: Re: What causes LCD to show solid blocks, then after power cycle OK?
Post by: midipuppies on March 27, 2018, 04:59:19 PM
Sounds like the PSU. Check voltages and look for burned/discoloured power connectors.