CurtPalme.com Home Theater Forum

stefuel · Posted: Sun Jun 29, 2014 10:15 am Post subject:

I used to lose equipment on a regular basis here in the summer due to storm related surges and power outages. The biggest problem was blowing expensive lamps in my digital projector from the power banging off and no post purge to cool the lamp module. For that reason alone I bought a huge APC rack mount "Smart UPS". Everything in the rack and the projector was plugged into it. It has a serial port for external control and monitoring. I located a module from a custom Crestron programmer and added it into my system. All functions of the UPS can be viewed on a touch screen. Being incuded in my automation system allows other custom programming to be implemented. The UPS has "smart trim and smart boost" which is user adjustable. If the power (voltage or frequency) wanders more then X, it disconnects from the mains and runs on battery until power returns or back to stable. After a user definable delay, will switch back to mains. In programming I set up a timer to safely shut down the theater if power is not restored within X minutes. Never lost another lamp to overheating AND have not lost one piece of equipment since. If I'm in the man cave and the power goes out I might not even know it until a pop-up comes up on the touch screen telling me that I'm on b/u power and the shut-down timer is activated. Technically, this is not considered surge protection but back-up power protection. However, the fact that I have lost zero equipment in over ten years tells me something else. I'm happy with it.

HD-DAVE · Joined: 16 Feb 2007 Posts: 225 Location: Delta, BC

Got my new XG135 System board from Curt the other day ( snagged the low hrs Runco DTV (XG85) Curt had while I was at it Smile

), and the set is back up and running. So it was scrambled mess... ... SO FAR...but read on.

The rasters/setup was a total mess, as of course all the settings are lost from my old board switching to the new. I should have checked if there are socketed flash RAM chips on it maybe they could be transferred between boards but off the top of my head here at work all I remember is a couple of EPROM chips socketed and maybe one processor type chip.

I spent some time centering the rasters, doing the phase, checking focus, etc but my main concern is the brightness of the image is way off... image is very contrasty even with contrast turned down and brightness is weak even at 90 %... is there an adjustment I have missed ? Wondering if the lightning strike affected something in the HV or drive circuits....

**Curt Palme** · Posted: Fri Aug 29, 2014 5:51 pm Post subject:

Yep, it's in the yellowed out 'reference' manual. The overall white balance which changes from board to board, as it's calibrated with the whole video system.

Somewhere here or on the avs is a G2 calibration procedure. you need an AVIA disc and a voltmeter to do it.

gjaky · Joined: 05 Jun 2010 Posts: 2802 Location: Budapest, Hungary

The presents are stored on a soldered chip on the system board, you'd be able transfer them only with the PC control software.