Path: news.mitre.org!blanket.mitre.org!philabs!newsjunkie.ans.net!newsfeeds.ans.net!news-was.dfn.de!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!cpk-news-hub1.bbnplanet.com!news.bbnplanet.com!portc02.blue.aol.com!audrey01.news.aol.com!not-for-mail From: mzthompson@aol.com (Mzthompson) Newsgroups: comp.sys.dec Subject: Re: DEC VRT19-HA specs needed Date: 9 Jan 1998 00:20:02 GMT Lines: 107 Message-ID: <19980109002001.TAA29232@ladder01.news.aol.com> NNTP-Posting-Host: ladder01.news.aol.com X-Admin: news@aol.com Organization: AOL http://www.aol.com References: On Thu, Jan 8, 1998 08:06 EST wrote: >I have tried for a long time to get the correct specs for a DEC VRT19-HA >monitor (With a SONY GDM-1961 tube). > >Searches on the net have not given any definitive specifications, and >Bandwidth, Hfreq, Vfreq etc have all varied a lot. Reported bandwidth >varies from 120Mhz to 160Mhz. > >Could someone please provide me with the correct technical specifications >for the DEC VRT19-HA monitor? > > Following should be the info you need: Regards, Mike There is more than one version of the VRT19 VRT19-DA (aka SONY GDM-1960) VRT19-D3 (aka SONY GDM-1960) VRT19-D4 VRT19-HA (aka SONY GDM-1961) VRT19-H4 Following are the specs from two different DEC manuals, yes the specs listed are different. From the DEC manual EK-VRT19-TC-001 (12/91) VRT19-DA/D4 operates at 66 Hz VRT19-HA/H4 operates at 66 or 72 Hz, automatically selected to match the graphics module The following monitors can display graphics generated by the following modules: VRT19-DA/D4 VRT19-HA/H4 PMAG-JA X X PMAGB-JA X PMAGB-BA X X PMAGB-BC X PMAGB-BE X PMAG-CA X X PMAG-DA X X PMAGB-DA X PMAG-EA X X PMAGB-EA X PMAG-FA X X PMAGB-FA X X Specifications: Display Resolution: 1280x1024 Horizonital Horiz Freq: 77.1728 Khz Active Video: 9.7853 us (1280 pixels) Back Porch: 1712.4 ns (224 pixels) Blanking Interval: 3.1802 us (416 pixels) Front Porch: 244.6 ns (32 pixels) Horizontal Period: 12.9656 us (1696 pixels) Sync Pulse: 1223.2 ns (160 pixels) Vertical Vert Freq: 72.5562 Hz Active Video: 13.2768 ms Blanking Interval: 39 horizontal lines Front Porch: 3 horizontal lines Sync Pulse: 3 horizontal lines Vertical Period: 13.7824 ms Power Consumption: 220 watts maximum From the DEC manual ER-VRT19-OP-002, for VRT19-DA, D3, D4 Resolution: 1280x1024 Video Bandwidth: 100 Mhz Pixel Clock: 119.843 Mhz Horizonital Horiz Freq: 70.7Khz Active Video: 10.68 ns Back Porch: 1873 ns Blanking Interval: 3.465 ms Front Porch: 258 ns Sync Pulse: 1335 ns Vertical Vert Freq: 66.5 Hz Active Video: 14.485 ms Blanking Interval: 39 horizontal lines Front Porch: 3 horizontal lines Sync Pulse: 3 horizontal lines Vertical Period: 15.035 ms --------------- --------------- --------------- --------------- ---------------