Toshiba IK-M41R2 - Manual (Page 16)

5. INTERNAL SYNC.
At internal sync, mode, the video output field can be designated as well as outputting
video signals of NTSC normally Interlaced at 262.5H. The video output field can be des­
ignated by selecting the switches No.2 and No.3 of S308 as shown in the table below.
Output field S308
No.2 No.3
OFF OFF OFF
OFF ON
ODD ON OFF
EVEN ON ON
Upon designating the output field, the video out sends each designated field which is
non-interlaced (1 field=262H).
6. EXTERNAL SYNC. BY C-SYNC/VS/VBS
C-SYNC: Composite-SYNC signal
VS: VIDEO/Composite-SYNC signal
VBS: VIDEO/BURST/Composite-SYNC signal
In order to set external sync, mode with the signal selected from C-SYNC, VS and VBS,
input to VD IN terminal on the rear (BNC connector) or 7 pin (signal) and 12 pin (GND) of
DC IN/SYNC terminal (12 pin connector). No signal is necessary to be input to 5 pin and 6
pin of HD IN terminal (BNC connector) and DC IN/SYNC terminal.
Set S314 to R.R when the external sync. Is carried out by using BBS (BLACK/BURST/
Composite-SYNC) signal.
Set the S314 (R.R MODE switch) and S312 (HD. VD 75Q ON/OFF switch) according to the
input conditions of C-SYNC, VS and VBS as shown in the table below.
Signal Input condition
S312
75Q terminated SW
S314
R.R. mode SW
C-SYNC/VSA/BS 0.3±0.15Vp-p, 75Q unbalanced ON NORM
C-SYNC 3.0±1.5Vp-p, 75Q unbalanced ON NORM
C-SYNC 5.0±0.5Vp-p, TTL OFF NORM
External sync, frequency range: Within ±1.0% against NTSC standards.
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