Crystal Vision
Card edge operation
DEC104S User Manual R1.0
26
29/10/04
10 bit YC – Y/C (S-video) mode selected for well-timed inputs
8 bit YC – Y/C (S-video) mode selected for inputs with less stable timing
If switch lever 1 is left in the UP position 10 bit or 8 bit mode is selected automatically. If
switch lever 1 is left in the DOWN position the choice can be made using lever 5.
Link
Position
Function
Lever 5
Board centre
Manually select 10 or 8 bit operation when piano switch 1 is DOWN
Lever down – forces 8 bit operation
Lever up – forces 10 bit operation
The five decoder modes and the required lever, jumper and ADJ control settings are
summarised below:
Desired Mode
SEL 7
Display Text
Rotate
ADJ
Mode lever and jumper settings
Composite, 10 bit
Comb
Yes
Lever 3 UP and Lever 1 UP (or Lever 1 DOWN with
lever 5 UP in 10 bit position)
Composite, 10 bit
Bandsplit
Yes
Lever 3 UP and Lever 1 UP (or Lever 1 DOWN with
lever 5 UP in 10 bit position)
Composite, 8 bit
Simple
No
Lever 3 UP and Lever 1 UP (or Lever 1 DOWN with
lever 5 DOWN in 8 bit position)
Y/C, 10 bit
10 bit YC
No
Lever 3 DOWN and Lever 1 UP (or Lever 1 DOWN with
lever 5 UP in 10 bit position)
Y/C, 8 bit
8 bit YC
No
Lever 3 DOWN and Lever 1 UP (or Lever 1 DOWN with
lever 5 DOWN in 8 bit position)
Notes:
Bandsplit is only available with PAL inputs in 10 bit mode.
10 bit mode is not available in NTSC when Y/C is selected. Use the DEC102S for 10 bit
mode with NTSC inputs in Y/C format.
Setting gain and black level
Use rotary switch (SEL) positions 0 to 4 and the shaft encoder to change the following:
Luminance gain and offset (black level)
Chrominance gains
The gain and offset adjustments are independent for 8 and 10 bit modes as well as comb,
bandsplit and Y/C modes. For example, if the unit is set up in 10 bit mode and
subsequently adjusted in 8 bit mode, the 10 bit adjustments are maintained and will be
restored when 10 bit operation is resumed.
There are effectively five sets of independent gain and offset adjustments; 8 bit
composite, 10 bit comb, 10 bit bandsplit, 8 bit Y/C and 10 bit Y/C.
