1 March, 2005
V1629OM.DOC/ A
Page 7 of 10
3.3 LOCAL
CODER
CONTROL
Local control of the coder functions is all done on the DIL switches on the PCB except for PLUGE
on and off.
Most of the coder functions are inherent to the design, but some characteristics can be changed
using the DIL switches on the PCB. The two switches SWs 1 and 2 operated identically on the two
channels and are completely independent. Within each DIL switch there are 8 switches which are
used as in the following table.
Note the nomenclature of the switch position with regard to On and OFF. This may not be the same
as the label ON on some of the physical devices. (This is because the unit uses positive logic
whereby a high voltage is a logic 1, but the action of turning a switch ON usually puts a logic 0 on
the control.)
SWITCH
TITLE
ON (Front)
OFF (Rear) - Default
1 Std.
Select 625/50
⇒
PAL N
525/60
⇒
PAL M
625/50
⇒
PAL I
525/60
⇒
NTSC
2 VI
Blank
625: 623.5
→
22, 311
→
335
625: 623.5
→
6, 311
→
320
525: 1
→
20, 263.5
→
19
525: 1
→
9, 263.5
→
9
3
DR Off
Dynamic Rounding disabled
Dynamic Rounding ON
4
NTSC - Japan
625:
no effect
625:
no effect
525:
NTSC JAPAN
525:
Standard NTSC
5 unused
6 unused
7
PLUGE Disable PLUGE not selectable
PLUGE available
8
YC on Output
Analogue O/Ps
⇒
Y and C
Analogue O/Ps
⇒
CVBS
For normal operation all switches should be OFF, i.e. set towards the rear.
3.4 STANDARD
SETTING
The unit can generate 4 different colour standards, with a variant on one of them. Which are
available depends on the SDI input format. 625/50 signals can be in PAL I or PAL N, while 525/60
can be in NTSC (or NTSC Japan) or PAL M.
In LOCAL control they are set as follows:
Channel A:
SW 1, switch 1
Rear = PAL I or NTSC
Front = PAL N or PAL M
Channel B:
SW 2, switch 1
Rear = PAL I or NTSC
Front = PAL N or PAL M
Additionally switch 4 is used to set the NTSC variant:
Channel A:
SW 1, switch 4
Rear = Standard NTSC
Front = Japanese NTSC
Channel B:
SW 2, switch 4
Rear = Standard NTSC
Front = Japanese NTSC
In REMOTE control mode all these options are settable over DART.
