SUN SPARC station ELC

Checking out a SUN SPARC station ELC tonight. It powers up, passes self test. Boot fails because the CMOS RAM battery is dead, so it's lost boot config. That's no problem, it's an ST MK48T02B-25 'TIMEKEEPER RAM' 2K x 8, which is still available. Or I'll probably just cut open the tophat and connect a new battery. Then RTFM to find how to tell it to boot from external SCSI device 3. By extreme good fortune this machine came with a complete set of manuals. The main problem is the video monitor worked for a few minutes, then dropped to about half brightness - and since then is randomly varying in brightness. Before I open it up and start connector wiggling and hunting bad caps, dry joints and so one, does anyone know if schematics for the monitor exist online? Guy