Difference between revisions of "VCB02 Video Controller"

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'''VCB02 Video Controller'''  
 
'''VCB02 Video Controller'''  
  
VCB02 4/8 Plane Color Video [[QBUS]] Subsystem 1024x864
+
VCB02 1/4/8 Plane Video [[QBUS]] Subsystem 1024x864
 +
 
 +
== VCB02 Modules ==
 +
 
 +
{| class="wikitable" style="text-align:center;"
 +
! Module !! Description
 +
|-
 +
| [[M7615]] || Quad Monochrome Graphics Module
 +
|-
 +
| [[M7168]] || Quad 4 Plane Color Bitmap
 +
|-
 +
| [[M7169]] || Quad Q22 Bus Video Controller Module
 +
|}
 +
 
 +
 
 +
== VCB02 Configurations ==
 +
 
 +
{| class="wikitable" style="text-align:center;"
 +
! colspan="2" | VCB02 Option !! M7615 !! M7168 !! M7169
 +
|-
 +
| -A || Mono 1 Plane (B/W) || 1 || - || -
 +
|-
 +
| -B || Color 4 Plane || - || 1 || 1
 +
|-
 +
| -C || Color 8 Plane || - || 2 || 1
 +
|-
 +
| -D || Mono 4 Plane || - || 1 || 1
 +
|-
 +
| -E || Mono 8 Plane || - || 2 || 1
 +
|-
 +
| -F || Upgrade 4 to 8 Plane || - || 1 || -
 +
|}
 +
 
 +
1 Plane allows black/white graphics.
 +
 
 +
4 Planes allow for 16 colors / resp. 16 shades of gray from a palette of 16.7 million.
 +
 
 +
8 Planes allow for 256 colors / resp. 256 shades of gray from a palette of 16.7 million.
 +
 
 +
The only difference between the 4/8 Plane Color and Mono versions are the bulkhead assemblies:
 +
* 70-22661-01: Color
 +
* 70-22661-02: Color to Mono
 +
 
 +
== VCB02 Options and VAXstation Enclosures ==
 +
 
 +
In the times of the MicroVAX II the smaller [[BA23]] enclosure supported only the 4 Plane VCB02 options.
 +
 
 +
To use the 8 Plane options you had to use the bigger [[BA123]] enclosure.
 +
 
 +
This restriction was due to problems with the BA23 power supply and cooling.
 +
 
 +
For the [[VAXstation 3200/3500 | VAXstation 3200]] the BA23 power supply as well as cooling were improved so that the restriction was removed.
 +
 
 +
== VCB02 Monitors ==
 +
 
 +
Initially the VCB02 was delivered with one of the two types of monitors:
 +
* [[VR160]] 19" 1024 x 864 Monochrome Monitor; connected with a BC18P-10 Monochrome Cable
 +
* [[VR290]] 19" 1024 x 864 Color Monitor; connected with a BC18Z-10 Color Cable
 +
 
 +
More monitor models were added lateron, e.g. the [[VR299]]
 +
 
 +
== VCB02 Usage ==
 +
 
 +
The VCB02 was used with the following VAXstation models:
 +
 
 +
* [[VAXstation II]]
 +
* [[VAXstation II | VAXstation II/GPX]]
 +
* [[VAXstation 3200]]
 +
* [[VAXstation 3500]]
 +
* [[VAXserver 4000 series]], upgraded with: VS30U Field Upgrade of Q-bus VAXservers to Q-bus workstations
 +
 
 +
==External links==
 +
 
 +
* [http://www.bitsavers.org/pdf/dec/qbus/MP02083_VCB02_schem_Jan86.pdf VCB02 Field Maintenance Print Set] (MP-02083-01 Rev. A)
 +
* [http://www.bitsavers.org/pdf/dec/qbus/vcb02/AZ-GLGAB-MN_VCB02_Technical_Manual_Feb86.pdf VCB02 Technical Manual] (AZ-GLGAB-MN)
 +
* [https://manx-docs.org/collections/antonio/dec/MDS-2000-01/cd1/VAX/VS30UAD1.PDF VAXserver 4000 Series Systems VS30U Graphic Upgrade Addendum] (EK-VS30U-AD-001)
  
{{stub}}
 
  
 
[[Category: QBUS Display Controllers]]
 
[[Category: QBUS Display Controllers]]

Revision as of 09:44, 23 March 2023

VCB02 Video Controller

VCB02 1/4/8 Plane Video QBUS Subsystem 1024x864

VCB02 Modules

Module Description
M7615 Quad Monochrome Graphics Module
M7168 Quad 4 Plane Color Bitmap
M7169 Quad Q22 Bus Video Controller Module


VCB02 Configurations

VCB02 Option M7615 M7168 M7169
-A Mono 1 Plane (B/W) 1 - -
-B Color 4 Plane - 1 1
-C Color 8 Plane - 2 1
-D Mono 4 Plane - 1 1
-E Mono 8 Plane - 2 1
-F Upgrade 4 to 8 Plane - 1 -

1 Plane allows black/white graphics.

4 Planes allow for 16 colors / resp. 16 shades of gray from a palette of 16.7 million.

8 Planes allow for 256 colors / resp. 256 shades of gray from a palette of 16.7 million.

The only difference between the 4/8 Plane Color and Mono versions are the bulkhead assemblies:

  • 70-22661-01: Color
  • 70-22661-02: Color to Mono

VCB02 Options and VAXstation Enclosures

In the times of the MicroVAX II the smaller BA23 enclosure supported only the 4 Plane VCB02 options.

To use the 8 Plane options you had to use the bigger BA123 enclosure.

This restriction was due to problems with the BA23 power supply and cooling.

For the VAXstation 3200 the BA23 power supply as well as cooling were improved so that the restriction was removed.

VCB02 Monitors

Initially the VCB02 was delivered with one of the two types of monitors:

  • VR160 19" 1024 x 864 Monochrome Monitor; connected with a BC18P-10 Monochrome Cable
  • VR290 19" 1024 x 864 Color Monitor; connected with a BC18Z-10 Color Cable

More monitor models were added lateron, e.g. the VR299

VCB02 Usage

The VCB02 was used with the following VAXstation models:

External links