Digital VRC21-Hx Monitor Information

The Digital VRC21-Hx monitor is a 21" multiscan monitor, and was supplied with most AlphaStation 455-type workstations. It has onboard digital tuning, but was before the era of the on-screen display.

I recently moved office, and in the cleanup, found a pristine copy of the original DEC manual for this model. The book includes text in several languages, however I have only scanned those pages that are in English. The pages are 100dpi, greyscale scans in JPEG format, roughly 130k per page.

You can either view them one by one: 1,  2,  3,  4,  5,  6,  7,  8,  9,  10,  11,  12,  13,  14, and  15, or download a compressed archive of the collection in ZIP or gzipped tar format.

A quick summary of the tuning information (most likely the bit you need) is:

• the left side switch on the back controls power management. On means that the monitor listens for power mgmt stuff from the CPU and goes into standby ( < 30W) and off ( < 5W) modes.

• the right switch should be set to 75 ohms. the manual claims that the 1kohm setting is not supported.

• adjustment mode is cryptic, but ... there are 5 LEDs which are kinda unrelated to the icons above them. the decoding table is

  	LED 1 (left)	LED 2	LED 3	LED 4	LED 5 (right)
  H Position	on	off	off	off	off
  H Size	off	off	on	off	off
  V Position	off	off	off	on	off
  V Size	off	off	off	on	off
  Colour 1 (9300 deg Kelvin)	blink	off	off	off	on
  Colour 2 (6500 deg Kelvin)	off	blink	off	off	on
  Colour 3	off	off	blink	off	on
  Colour 3 (Green gain)	on	on	off	off	on
  Colour 3 (Blue gain)	off	on	on	off	on
  Colour 3 (Red gain)	off	off	on	on	on
  Rotation	on	off	on	off	on
  PCC Amp Fine	on	on	off	off	off
  PCC Amp	on	on	on	off	off
  PCC Phase	on	on	on	on	off
  Key Balance	on	on	on	on	on
  Pin Balance	off	off	off	off	off

  For all except the Colour 1 and Colour 2 settings, use the arrow keys to change between setting and the +/- keys to set the value. With the white balance colours, +/- shift between colour 1, colour 2 and the custom settings for colour 3 (to return to colour 2 from 3 use the arrows?).

  PCC Amp Fine adjusts the bowing at the centre of the image only, PCC Amp adjusts the bowing of the entire image. PCC Phase adjusts the relative size of the top vs. bottom of the screen.

  Key balance adjusts the slant and pin balance moves the centre of the image left or right.

• XFree86 settings? Try these ...

  #From: jestabro@amt.tay1.dec.com (Jay Estabrook)
  #Date: 21 May 1997, 22:00:00 AEST
  
  Section "Monitor"
      Identifier  "DEC VRC21-Hx"
      VendorName  "DEC"
      ModelName   "VRC21-Hx"
      HorizSync   30-85
      VertRefresh 50-152
  EndSection